Spring+安卓项目开发。已成功

狄飞鹏

2023-12-01

一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架

1.Spring整合mybatis

1.进入达内将SSM框架需要的依赖导入

2.创建yml文件

//创建yml文件
spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    druid:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://localhost:3306/shopping?serverTimezone=GMT%2B8
      username: root
      password: root
      max-active: 20
      max-wait: 6000
      min-idle: 1
      test-on-borrow: true
      test-on-return: true
  thymeleaf:
    mode: HTML
    encoding: UTF-8
    cache: false
mybatis:
  //mapper/xml对应生成的路径
  mapper-locations: classpath*:com/example/androidtest/mapper/*Mapper.xml
  //配置文件
  config-location: classpath:mybatis-config.xml

shopping:
  host: http://img.neuedu.com

//在resources文件下创建mybatis-config.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
  <settings>
    <setting name="logImpl" value="LOG4J"/>
  </settings>
  <typeAliases>

  </typeAliases>
</configuration>

2.创建数据库并使用逆向工程导入

1.建立需要的数据库

2.在resources文件下创建使用generatorConfig.xml文件进行逆向工程配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
    <!--导入属性配置-->

    <!--指定特定数据库的jdbc驱动jar包的位置,需要找到自己的jar包的位置-->
    <classPathEntry location="D:\\alijavaweb\\mysql\\mysql-connector-java\\8.0.15\\mysql-connector-java-8.0.15.jar" />

    <context id="context" targetRuntime="MyBatis3">

        <!-- optional，旨在创建class时，对注释进行控制 -->
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>

        <!--jdbc的数据库连接 -->//跟yml里的配置一样
        <jdbcConnection
            driverClass="com.mysql.cj.jdbc.Driver"
            connectionURL="jdbc:mysql://localhost:3306/shopping?serverTimezone=GMT%2B8"
            userId="root"
            password="root">
        </jdbcConnection>


        <!-- 非必需，类型处理器，在数据库类型和java类型之间的转换控制-->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>


        <!-- Model模型生成器,用来生成含有主键key的类，记录类 以及查询Example类
            targetPackage     指定生成的model生成所在的包名
            targetProject     指定在该项目下所在的路径
        -->
        <!-- 生成表对应的实体类-->
        <javaModelGenerator targetPackage="com.example.androidtest.pojo" targetProject="./src/main/java">
            <!-- 是否允许子包，即targetPackage.schemaName.tableName -->
            <property name="enableSubPackages" value="false"/>
            <!-- 是否对model添加 构造函数 -->
            <property name="constructorBased" value="true"/>
            <!-- 是否对类CHAR类型的列的数据进行trim操作 -->
            <property name="trimStrings" value="true"/>
            <!-- 建立的Model对象是否 不可改变  即生成的Model对象不会有 setter方法，只有构造方法 -->
            <property name="immutable" value="false"/>
        </javaModelGenerator>

        <!--mapper映射文件生成所在的目录 为每一个数据库的表生成对应的SqlMap文件 -->
        <!--生成对应的mapper.xml文件-->
        <sqlMapGenerator targetPackage="com.example.androidtest.mapper" targetProject="./src/main/resources">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>

        <!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
            type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
            type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
            type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
        -->

        <!-- targetPackage：mapper接口dao生成的位置 -->
        <!--生成对应的mapper接口文件-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.example.androidtest.dao" targetProject="./src/main/java">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false" />
        </javaClientGenerator>

        <!--将tableName改成自己数据库表一样的名字跟数量-->
        <table tableName="nite_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
<!--        <table tableName="nite_category" domainObjectName="Category" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--        <table tableName="nite_product" domainObjectName="Product" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--        <table tableName="nite_cart" domainObjectName="Cart" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--        <table tableName="nite_order" domainObjectName="Order" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--        <table tableName="nite_item" domainObjectName="Item" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--        <table tableName="nite_shipping" domainObjectName="Shipping" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
        <!-- geelynote mybatis插件的搭建 -->
    </context>
</generatorConfiguration>

3.封装高可用对象ServerResponse对象

心得：为什么要用这个封装的对象呢？原来我们返回一个比如实体类对象，比如 Jianzhi selectByid(int id);这种，但是如果用了ServerResponse这个封装的类型，我们可以多返回一个状态码来方便我们辨别正确/错误信息。

1.封装一个ServerResponse类，用于返回状态，信息，提示

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonNaming;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import lombok.Data;

/**
 * 封装前端返回的统一实体类
 * @param <T>
 */
@Data
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)//只包含非空字段
public class ServerResponse<T> {
    private int status; //状态 0；接口调用成功
    private T data; //泛型T，当status=0，将返回的数据封装到data中
    private String msg; //提示信息

    private ServerResponse(){}
    
    private ServerResponse(int status){
        this.status = status;
    }
    private ServerResponse(int status, T data){
        this.status = status;
        this.data = data;
    }
    private ServerResponse(int status, T data, String msg){
        this.status = status;
        this.data = data;
        this.msg = msg;
    }

    @JsonIgnore
    public boolean isSuccess(){
        return this.status == 0;
    }
    
    public static ServerResponse createServerResponseBySuccess(){
        return new ServerResponse(0);
    }

    /**
     *<T>后跟方法名表示泛型方法
     */
    public static <T> ServerResponse createServerResponseBySuccess(T data){
        return new ServerResponse(0,data);
    }
    public static <T> ServerResponse createServerResponseBySuccess(T data,String msg){
        return new ServerResponse(0,data,msg);
    }
    public static ServerResponse createServerResponseByFail(int status){
        return new ServerResponse(status);
    }
    public static ServerResponse createServerResponseByFail(int status,String msg){
        return new ServerResponse(status,null,msg);
    }
}

2.封装一个enum类ResponseCode，用于放状态码跟状态信息

public enum ResponseCode {

    //状态信息放在;前面
    USERNAME_NOT_EMPTY(1,"用户名不能为空"),
    PASSWORD_NOT_EMPTY(2,"密码不能为空"),
    USERNAME_NOT_EXIST(3,"用户名不存在"),
    PASSWORD_ERROR(4,"密码错误"),
    PARAMETER_NOT_EMPTY(5,"参数不能为空"),
    EMAIL_NOT_EMPTY(6,"邮箱不能为空"),
    QUESTION_NOT_EMPTY(7,"密保问题不能为空"),
    ANSWER_NOT_EMPTY(8,"密保答案不能为空"),
    PHONE_NOT_EMPTY(9,"电话不能为空"),
    USERNAME_EXIST(10,"用户名已存在"),
    EMAIL_EXIST(11,"邮箱已存在"),
    REGISTER_FAIL(12,"注册失败"),
    NEED_LOGIN(13,"未登录"),
    USERINFO_UPDATE_FAIL(14,"用户信息修改失败"),
    ;


    private int code;
    private String msg;

    ResponseCode(int code,String msg){
        this.code = code;
        this.msg = msg;
    }
    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

}

3.建立一个DateUtil时间化工具类

import org.apache.commons.lang.StringUtils;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

import java.util.Date;
/*
时间格式化工具类
 */
public class DateUtil {

    public static final String STANDARD = "yyyy-MM-dd HH:mm:ss";
    //将String转成Date
    public static Date string2Date(String strDate){
        DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern(STANDARD);
        DateTime dateTime = dateTimeFormatter.parseDateTime(strDate);
        return dateTime.toDate();
    }
    //将Date转成String
    public static String date2String(Date date){
        if(date == null){
            return StringUtils.EMPTY;
        }
        DateTime dateTime = new DateTime(date);
        return dateTime.toString(STANDARD);
    }
}

二.Adroid搭建

1.安卓连上网，跟IDEA产生交互

1.首先需要添加两端代码在对应module的build.gradle中，让我们可用在后续使用OkHttp协议获取URL数据

implementation'com.squareup.okhttp3:okhttp:3.10.0'
implementation 'com.google.code.gson:gson:2.8.6'

2.在utils包下添加OkHttpCallback和OkhttpUtils文件

//OkHttpUtils文件，用于获取URL上get或者post、downFile等方法的信息
public class OkHttpUtils {
    private static final OkHttpClient CLIENT = new OkHttpClient();

    public static void get(String url,OkHttpCallback Callback){
        Callback.url = url;
        //构建请求头
        Request request = new Request.Builder().url(url).build();
        //接收服务端的响应
        CLIENT.newCall(request).enqueue(Callback);
    }

    public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");

    public static void post(String url,String json,OkHttpCallback callback){
        callback.url = url;
        RequestBody body = RequestBody.create(JSON,json);
        Request request = new Request.Builder().url(url).post(body).build();
        CLIENT.newCall(request).enqueue(callback);
    }

    public static void downFile(String url,final String saveDir,OkHttpCallback callback){
        callback.url = url;
        Request request = new Request.Builder().url(url).build();
        CLIENT.newCall(request).enqueue( callback);
    }
}

import android.util.Log;
import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

//监听服务端的响应，获取服务端的正确/报错信息
public class OkHttpCallback implements Callback {
    private final String TAG     =com.example.onlinecareer.util.OkHttpCallback.class.getSimpleName();

    public String url;
    public String result;

    //接口调用成功
    @Override
    public void onResponse(Call call, Response response) throws IOException {
        Log.d(TAG,"url:"+url);
        //成功时获取接口数据
        result = response.body().string().toString();
        Log.d(TAG,"请求成功:"+result);
        //调用onFinish输出获取的信息，可用通过重写onFinish()方法，运用hashmap获取需要的值并存储
        onFinish("success",result);
    }

    public void onFailure(Call call,IOException e){
        Log.d(TAG,"url:"+url);
        Log.d(TAG,"请求失败:"+e.toString());
        //请求失败，输出失败的原因
        onFinish("failure",e.toString());
    }

    public void onFinish(String status,String msg){
        Log.d(TAG,"url:"+url + "status:" + status+"msg:"+msg);
    }

}

3.头文件xml中进行操作

<!--在头部插入-->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!--在application标签中插入-->
android:networkSecurityConfig="@xml/network_config"
 android:usesCleartextTraffic="true"

4.在res中创建一个xml包，包下包含network_config.xml文件

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true" />
</network-security-config>

2.建立一个类，其中含有Static全局变量方便后续使用

public class CommonData {
    //登录状态
    public static boolean isLogin=false;
    //登录用户数据
    public static HashMap<String, Object> user_hashMap;
    public static HashMap<String, Object> user_hashMap1;
    //所有用户数据
    public static ArrayList<HashMap<String, Object>> list
        =new ArrayList<HashMap<String,Object>>();
   
}

3.编写Baseadapter类，用来使得listview以一个layout为样例实现

public class JobAdapter extends BaseAdapter {
    //定义一个动态数组
    private List<HashMap<String, Object>> data;
    private Context context;
    //这里的data是OneFragment传来的hashmap的数据
    public JobAdapter(Context context, List<HashMap<String, Object>> data) {
        this.context = context;
        this.data = data;
    }

    @Override
    public int getCount() {
        return data.size();
    }

    @Override
    public HashMap<String, Object> getItem(int position) {
        return data.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        //跟目标的layout关联
        if (convertView == null) {
            convertView = View.inflate(context, R.layout.item_job, null);
            new ViewHolder(convertView);
        }
        //获取目标layout的控件
        final ViewHolder holder = (ViewHolder) convertView.getTag();

        HashMap<String, Object> hashMap=getItem(position);
        //将获得hashmap的数据放入控件列表中
        holder.iv_job_icon.setBackgroundResource((Integer)hashMap.get("img"));
        holder.tv_job_name.setText(hashMap.get("name").toString());
        holder.tv_job_company.setText(hashMap.get("company").toString());
        holder.tv_job_time.setText(hashMap.get("time").toString());
        holder.tv_job_salary.setText(hashMap.get("salary").toString());
        holder.tv_job_type.setText(hashMap.get("jobType").toString());

        return convertView;
    }

    //跟目标layout的控件对应
    class ViewHolder {
        public ImageView iv_job_icon;
        public TextView tv_job_name;
        public TextView tv_job_company;
        public TextView tv_job_time;
        public TextView tv_job_salary;
        public TextView tv_job_type;

        public ViewHolder(View view) {
            iv_job_icon = (ImageView) view.findViewById(R.id.iv_job_icon);
            tv_job_name = (TextView) view.findViewById(R.id.tv_job_name);
            tv_job_company = (TextView) view.findViewById(R.id.tv_job_company);
            tv_job_time = (TextView) view.findViewById(R.id.tv_job_time);
            tv_job_salary = (TextView) view.findViewById(R.id.tv_job_salary);
            tv_job_type = (TextView) view.findViewById(R.id.tv_job_type);
            view.setTag(this);
        }
    }
}

4.碎片化管理Fragment，实现类似于ajax的效果。

1.创建统一管理的main

@SuppressLint("NewApi")
public class MainActivity extends Activity implements CompoundButton.OnCheckedChangeListener {

    private FrameLayout frameLayout;
    public OneFragment oneFragment;
    public TwoFragment twoFragment;
    public ThreeFragment threeFragment;
    public Fragment fa;
    private RadioButton radioButton1, radioButton2, radioButton3;

    private int currentTab = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        initView();
        initEvent();

    }
   
    @Override
    protected void onResume() {
        super.onResume();
        setSelect(currentTab);
    }

    private void initView() {
        frameLayout = (FrameLayout) findViewById(R.id.fl_content);
        radioButton1 = (RadioButton) findViewById(R.id.radioButton1);
        radioButton2 = (RadioButton) findViewById(R.id.radioButton2);
        radioButton3 = (RadioButton) findViewById(R.id.radioButton3);
    }

    //在刚开始点开的时候进入0代表的页面
    private void initEvent() {
        // TODO Auto-generated method stub
        radioButton1.setOnCheckedChangeListener(this);
        radioButton2.setOnCheckedChangeListener(this);
        radioButton3.setOnCheckedChangeListener(this);
        setSelect(0);
        radioButton1.setCompoundDrawablesWithIntrinsicBounds(
                null,
                getApplication().getResources().getDrawable(
                        R.drawable.home_selected), null, null);
        radioButton1.setTextColor(0xff2C97D4);
    }

    //设置下面三个按钮的样式，并且全部设成灰色
    private void setImg() {
        radioButton1.setCompoundDrawablesWithIntrinsicBounds(
                null,
                getApplication().getResources().getDrawable(
                        R.drawable.home_normal), null, null);
        radioButton2.setCompoundDrawablesWithIntrinsicBounds(
                null,
                getApplication().getResources().getDrawable(
                        R.drawable.message_normal), null, null);
        radioButton3.setCompoundDrawablesWithIntrinsicBounds(
                null,
                getApplication().getResources().getDrawable(
                        R.drawable.my_normal), null, null);
        radioButton1.setTextColor(0xff979797);
        radioButton2.setTextColor(0xff979797);
        radioButton3.setTextColor(0xff979797);
    }

     //这里是监听按钮，按下后可以给予需要的页面
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        if (isChecked) {
            switch (buttonView.getId()) {
                case R.id.radioButton1:
                    setImg();
                    currentTab = 0;
                    radioButton1.setTextColor(0xff2C97D4);
                    radioButton1.setCompoundDrawablesWithIntrinsicBounds(
                            null,
                            getApplication().getResources().getDrawable(
                                    R.drawable.home_selected), null, null);
                    setSelect(0);
                    break;
                case R.id.radioButton2:
                    if (CommonData.isLogin) {
                        setImg();
                        currentTab = 1;
                        radioButton2.setTextColor(0xff2C97D4);
                        radioButton2.setCompoundDrawablesWithIntrinsicBounds(
                                null,
                                getApplication().getResources().getDrawable(
                                        R.drawable.message_selected), null, null);
                        setSelect(1);
                    } else {
                        Intent intent = new Intent(this, LoginActivity.class);
                        startActivityForResult(intent, 1);
                    }

                    break;
                case R.id.radioButton3:
                    setImg();
                    currentTab = 2;
                    radioButton3.setTextColor(0xff2C97D4);
                    radioButton3.setCompoundDrawablesWithIntrinsicBounds(
                            null,
                            getApplication().getResources().getDrawable(
                                    R.drawable.my_selected), null, null);
                    setSelect(2);
                    break;
            }
        }
    }

     //这是刚开始登录的时候传了个ok来，然后通过判断它来获得页面是否登录，登录则给进入1代表的界面
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        String result = data.getExtras().getString("result");// 得到新Activity
        // 关闭后返回的数据
        if (result.equals("ok")) {
            setImg();
            currentTab = 1;
            radioButton2.setTextColor(0xff2C97D4);
            radioButton2.setCompoundDrawablesWithIntrinsicBounds(
                    null,
                    getApplication().getResources().getDrawable(
                            R.drawable.message_selected), null, null);
            setSelect(1);
        } else {
            if (currentTab == 0) {
                radioButton1.setChecked(true);
                radioButton1.setTextColor(0xff2C97D4);
                radioButton1.setCompoundDrawablesWithIntrinsicBounds(
                        null,
                        getApplication().getResources().getDrawable(
                                R.drawable.home_selected), null, null);
                setSelect(0);
            } else if (currentTab == 2) {
                radioButton3.setChecked(true);
                radioButton3.setTextColor(0xff2C97D4);
                radioButton3.setCompoundDrawablesWithIntrinsicBounds(
                        null,
                        getApplication().getResources().getDrawable(
                                R.drawable.my_selected), null, null);
                setSelect(2);
            }
        }
    }

    //该方法让界面上不需要的内容隐藏，需要的显示出来
    public void setSelect(int i) {
        FragmentManager fm = getFragmentManager();
        FragmentTransaction transaction = fm.beginTransaction();
        switch (i) {
            case 0:
                hideFragment(transaction, twoFragment);
                hideFragment(transaction, threeFragment);
                if (oneFragment == null) {
                    oneFragment = new OneFragment();
                    transaction.add(R.id.fl_content, oneFragment, "oneFragment");
                } else {
                    transaction.show(oneFragment);
                }
                break;
            case 1:
                hideFragment(transaction, oneFragment);
                hideFragment(transaction, threeFragment);
                if (twoFragment == null) {

                    twoFragment = new TwoFragment();
                    transaction.add(R.id.fl_content, twoFragment, "twoFragment");
                } else {
                    transaction.show(twoFragment);
                }
                break;
            case 2:
                hideFragment(transaction, oneFragment);
                hideFragment(transaction, twoFragment);
                if (threeFragment == null) {
                    threeFragment = new ThreeFragment();
                    transaction.add(R.id.fl_content, threeFragment, "threeFragment");
                } else {
                    transaction.show(threeFragment);
                }
                break;
        }
        transaction.commit();
    }

    //隐藏fragment
    private void hideFragment(FragmentTransaction transaction, Fragment fragment) {
        if (fragment != null) {
            transaction.hide(fragment);
        }
    }


    /**
     * 点击退出键退出界面的时候不会关闭,应用下次进入的时候不用重启
     */
    @Override
    public boolean dispatchKeyEvent(KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
                && event.getAction() == KeyEvent.ACTION_DOWN
                && event.getRepeatCount() == 0) {
            // 具体的操作代码
            moveTaskToBack(true);
            return true;
        }
        return super.dispatchKeyEvent(event);
    }
}

三.安卓中实现的前端功能，以及IDEA中处理的后端请求

I.登录功能(对应LoginActivity与其的layout界面以及IDEA中的接口处理)，以下都只展示Activity的代码

心得:在Spring中，一般是先定义mapper层，然后.xml取数据库查找返回需要的数据。再定Service层，impl重写service方法，在其中调用mapper层的方法拿去数据。最后在controller使用service方法处理请求

1.安卓端先创建好登录的界面，以下为LoginActivity代码详解

public class LoginActivity extends Activity implements View.OnClickListener {

    private TextView tv_back, tv_title, tv_register;
    private EditText et_account, et_password;
    private Button btn_login;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        initView();
    }

    private void initView() {
        tv_title = (TextView) findViewById(R.id.tv_title);
        tv_title.setText(R.string.login);

        tv_back = (TextView) findViewById(R.id.tv_back);
        tv_register = (TextView) findViewById(R.id.tv_register);
        btn_login = (Button) findViewById(R.id.btn_login);

        tv_back.setOnClickListener(this);
        tv_register.setOnClickListener(this);
        btn_login.setOnClickListener(this);

        et_account = (EditText) findViewById(R.id.et_account);
        et_password = (EditText) findViewById(R.id.et_password);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.tv_register:
             Intent  intent=new Intent(this,RegisterActivity.class);
                startActivity(intent);
                break;
            case R.id.btn_login:
                String username=et_account.getText().toString();
                String psd=et_password.getText().toString();
//通过OkHttoUtils.get的方法获取URL传来的json数据，json数据会存在onFinish方法的msg中
//此处的URL去访问了这个网址，触发了IDEA中的request请求，在IDEA中的UserController中处理
                OkHttpUtils.get("http://172.21.254.44:8080/portal/user/login.do?username="+username+"&password="+psd,
                        new OkHttpCallback(){
                            @Override
                            public void onFinish(String status, String msg) {
                                super.onFinish(status, msg);
                                //解析msg
                                Looper.prepare();
                                Gson gson = new Gson();
                                //通过gson.from方法返回需要的类型的数据
                              ServerResponse<User> serverResponse = gson.fromJson(msg, new TypeToken<ServerResponse<User>>(){}.getType());
                                System.out.println(serverResponse.getData().getId());

                                if (serverResponse == null) {
                                    Toast.makeText(LoginActivity.this,"用户名或密码不正确",Toast.LENGTH_SHORT).show();
                                }else{
                    //用hashMap静态全局变量转发获取的值。
         HashMap<String,Object> hashMap = new HashMap<String,Object>();
 hashMap.put("id",serverResponse.getData().getId());
                                    hashMap.put("name",serverResponse.getData().getUsername());
                                    hashMap.put("password",serverResponse.getData().getPassword());
                                    hashMap.put("phone",serverResponse.getData().getPhone());
                                    hashMap.put("major",serverResponse.getData().getIp());
                                    hashMap.put("sex",serverResponse.getData().getQuestion());
                                    hashMap.put("age",serverResponse.getData().getAnswer());
                                    hashMap.put("school",serverResponse.getData().getEmail());
                                    System.out.println(serverResponse.getData().getId());
                                    //标志登录状态
                                    CommonData.isLogin=true;
                     //将获取的数据存入CommonData的全局变量中
                                    CommonData.user_hashMap1=hashMap;
                 Intent intent = new Intent(LoginActivity.this,MainActivity.class);
                                    intent.putExtra("result", "ok");
                                    setResult(RESULT_OK, intent);
                                    startActivity(intent);

                                }
                                Looper.loop();
                            }
                        });
                break;
        }
    }
    }

2.由于URL触发login.do请求，将在IDEA中处理

1.在Controller层中的UserController中接收login.do的request请求

@RestController//标注为Controller并且返回json数据
@RequestMapping("/portal/")//所有请求以/portal开头
public class UserController {
    @Autowired
    IUserService userService;
    @Resource
    IJianzhiService iJianzhiService;
    @RequestMapping(value = "user/login.do")
    public ServerResponse login(String username, String password, HttpSession session){
        //调用Service层的userSerivce的loginLogic方法返回User对象的数据
        ServerResponse serverResponse = userService.loginLogic(username,password);
        if(serverResponse.isSuccess()){
            session.setAttribute(Const.CURRENT_USER,serverResponse.getData());
        }
        //return返回带有User对象数据跟状态0的数据
        return serverResponse;
    }
}

2.Service层给调用的IUserService

public interface IUserService {
          public ServerResponse loginLogic(String username,String password);
}

3.impl重写IUserService

@Service
public class UserService implements IUserService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public ServerResponse loginLogic(String username,String password){
        //step1:用户名和密码的非空判断
        /**
         * 通过commons-lang依赖中的封装方法也可以进行空判断
         * 其中方法有StringUtils.isBlank,StringUtils.isEmpty
         */
        if(StringUtils.isBlank(username)){
            //return+ServerResponse中返回的失败信息
            return ServerResponse.createServerResponseByFail
                (ResponseCode.USERNAME_NOT_EMPTY.getCode()
                 ,ResponseCode.USERNAME_NOT_EMPTY.getMsg());
                    }
        if(StringUtils.isBlank(password)){
            return ServerResponse.createServerResponseByFail(ResponseCode.PASSWORD_NOT_EMPTY.getCode(),ResponseCode.PASSWORD_NOT_EMPTY.getMsg());
        }
        //step2:查看用户名是否存在
        Integer count = userMapper.findByUsername(username);
        if(count == 0){
            return ServerResponse.createServerResponseByFail                                       (ResponseCode.USERNAME_NOT_EXIST.getCode(),
           ResponseCode.USERNAME_NOT_EXIST.getMsg());}

        //step3:调用usermapper的方法根据用户名和密码查询该用户的信息。
        User user = userMapper.findByUsernameAndPassword(username,password);
        if(user == null){
            return ServerResponse.createServerResponseByFail                                         (ResponseCode.PASSWORD_ERROR.getCode(),                                                    ResponseCode.PASSWORD_ERROR.getMsg());}
        //step4:返回结果，对应以下的方法获取了状态0，以及user对象中携带的json数据
        return ServerResponse.createServerResponseBySuccess(convert(user));
        /*public static <T> ServerResponse createServerResponseBySuccess(T data){
        return new ServerResponse(0,data);}*/
    }
    //另外封装的UserVO对象返回的数据，给网页显示，可不给关键信息显示到前端给人看到。
    private UserVO convert(User user){
        UserVO userVO = new UserVO();
        userVO.setId(user.getId());
        userVO.setQuestion(user.getQuestion());
        userVO.setAnswer(user.getAnswer());
        userVO.setUsername(user.getUsername());
        userVO.setPassword(user.getPassword());
        userVO.setEmail(user.getEmail());
        userVO.setPhone(user.getPhone());
        userVO.setIp(user.getIp());
        userVO.setCreateTime(DateUtil.date2String(user.getCreateTime()));
        userVO.setUpdateTime(DateUtil.date2String(user.getUpdateTime()));
        return userVO;
    }
}

4.mapper层中的userMapper给调用了方法

public interface UserMapper {
    int findByUsername(@Param("username") String username);
    User findByUsernameAndPassword(@Param("username") String username,@Param("password")                                    String password);
}

5.usermapper引用了UserMapper.xml来使用数据库查找数据

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--将对应的mapper对应上-->
<mapper namespace="com.example.androidtest.dao.UserMapper">
    <!--其中paramterType为输入数据类型，resultType为输出的数据类型-->
    <!--id对应方法名-->
    <select id="findByUsername" parameterType="String" resultType="int">
    select count(*)
    from nite_user
    where username = #{username}
    </select>
    <select id="findByUsernameAndPassword" parameterType="map" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List" />
    from nite_user
    where username = #{username} and password = #{password}
  </select>
</mapper>

II 注册功能

思路：1.安卓端建立注册页面，当点击了注册按钮之后，可以把需要的信息通过实例化对象获取，并用URL get请求来给予后端 2.后端处理URL请求，存入数据库。

1.创建RegisterAcitivity，用于将注册的信息传到URL上

$\space Math \space Block>$

@SuppressLint("NewApi")
public class RegisterActivity extends Activity implements View.OnClickListener {

    private TextView tv_back, tv_title;
    private EditText et_phone, et_password, et_re_password,et_name;
    private Button btn_register;
    RadioButton rb_nan,rb_nv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);

        initView();
    }

    private void initView() {
        tv_title = (TextView) findViewById(R.id.tv_title);
        tv_title.setText(R.string.register);
        tv_back = (TextView) findViewById(R.id.tv_back);
        btn_register = (Button) findViewById(R.id.btn_register);
        rb_nan = findViewById(R.id.rb_man);
        rb_nv = findViewById(R.id.rb_woman);

        tv_back.setOnClickListener(this);
        btn_register.setOnClickListener(this);

        et_phone = (EditText) findViewById(R.id.et_phone);
        et_password = (EditText) findViewById(R.id.et_password);
        et_re_password = (EditText) findViewById(R.id.et_re_password);
        et_name = findViewById(R.id.et_name);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.tv_back:
                Intent intent = new Intent(this,LoginActivity.class);
                startActivity(intent);
                break;
            case R.id.btn_register:

                String name = et_name.getText().toString();
                String phone = et_phone.getText().toString();
                String psd= et_password.getText().toString();
                String psd1 = et_re_password.getText().toString();

                if(phone.equals("")||psd.equals("")||psd1.equals("")||name.equals("")){
                    Toast.makeText(RegisterActivity.this,"填写信息不完整", Toast.LENGTH_LONG).show();
                }else if(!psd.equals(psd1)){
                    Toast.makeText(RegisterActivity.this,"密码不一致", Toast.LENGTH_LONG).show();
                }else {
//将输入的姓名、密码、电话传到URL请求中，让IDEA中的UserController中的方法来获取并处理
                    OkHttpUtils.get("http://172.21.254.44:8080/portal/user/register.do?username="+name+"&password="+psd+"&phone"+phone,
                            new OkHttpCallback(){
                                @Override
                                public void onFinish(String status, String msg) {
                                    super.onFinish(status, msg);
                                    //解析msg
                                    Gson gson = new Gson();
                                    ServerResponse<User> serverResponse = gson.fromJson(msg, new TypeToken<ServerResponse<User>>(){}.getType());
                                    int status1 = serverResponse.getStatus();
                                    if(status1 == 0){
                                        Looper.prepare();    //子线程弹窗需添加
                                        Toast.makeText(RegisterActivity.this,"注册成功",Toast.LENGTH_SHORT).show();
                                        Looper.loop();       //子线程弹窗需添加
                                    }

                                }
                            });
                    Intent intent1 = new Intent(RegisterActivity.this,LoginActivity.class);
                    startActivity(intent1);
                }

                break;
        }
    }

    //用户是否已存在
    private boolean isExist(SQLiteDatabase db, String tel) {
//        DBHelper helper=new DBHelper(this);
//        db=helper.getReadableDatabase();
        String sql = "select * from user_table where tel = '" + tel + "'";
        Cursor cursor = db.rawQuery(sql, new String[0]);
//        db.close();
        if (cursor.getCount() != 0) {
            Toast.makeText(RegisterActivity.this, "用户已经存在，不能重复注册！", Toast.LENGTH_SHORT).show();
            cursor.close();
            return true;
        }else{
            cursor.close();
            return false;
        }
    }

    // 验证电话号码
    public boolean isMobileNumber(String mobiles) {
        Pattern p = Pattern
                .compile("^((13[0-9])|(14[5,7])|(15[^4,\\D])|(18[0-9])|(17[0,6,7,8]))\\d{8}$");
        Matcher m = p.matcher(mobiles);
        return m.matches();
    }

}

2.URL触发了register请求，在IDEA中的UserController处理请求

@RequestMapping(value = "user/register.do")
    public ServerResponse register(User user){
        return userService.registerLogic(user);
    }

3.在IUserService接口中定义了controller中的方法，并且利用impl重写使用

@Override
    public ServerResponse registerLogic(User user){
        //step1:用户名和密码等一些列数据的非空判断

        if(user == null){
            return ServerResponse.createServerResponseByFail(ResponseCode.PARAMETER_NOT_EMPTY.getCode(),ResponseCode.PARAMETER_NOT_EMPTY.getMsg());
        }
        String username = user.getUsername();
        String password = user.getPassword();
        String email = user.getEmail();
        String question = user.getQuestion();
        String answer = user.getAnswer();
        String phone = user.getPhone();

        if(StringUtils.isBlank(username)){
            return ServerResponse.createServerResponseByFail(ResponseCode.USERNAME_NOT_EMPTY.getCode(),ResponseCode.USERNAME_NOT_EMPTY.getMsg());
        }
        if(StringUtils.isBlank(password)){
            return ServerResponse.createServerResponseByFail(ResponseCode.PASSWORD_NOT_EMPTY.getCode(),ResponseCode.PASSWORD_NOT_EMPTY.getMsg());
        }
        //step2 判断用户名是否存在
        Integer count = userMapper.findByUsername(username);
        if(count > 0){
            return ServerResponse.createServerResponseByFail(ResponseCode.USERNAME_EXIST.getCode(),ResponseCode.USERNAME_EXIST.getMsg());
        }

        //step3 判断邮箱是否存在
        Integer email_count = userMapper.findByEmail(email);
        if(email_count > 0){
            return ServerResponse.createServerResponseByFail(ResponseCode.EMAIL_EXIST.getCode(),ResponseCode.EMAIL_EXIST.getMsg());
        }

        //step4 注册
        //可加密
        user.setRole(Const.CUSTOM);
        Integer result = userMapper.insert(user);
        if(result == 0){
            return ServerResponse.createServerResponseByFail(ResponseCode.REGISTER_FAIL.getCode(),ResponseCode.REGISTER_FAIL.getMsg());
        }
        return ServerResponse.createServerResponseBySuccess();
    }

4.在mapper层接口中定义上面的各种方法，并且利用mapper.xml查找数据返回结果

III 工作功能

因为进入LoginActivity登录会转入MainActivity判断，刚开始默认进入0代表的Fragment界面。

1.进入OneFragment界面

@SuppressLint("NewApi")
public class OneFragment extends Fragment implements OnClickListener {

    private View rootView;

    private TextView tv_part_job,tv_full_time;
    private ListView lv_job;
    private JobAdapter adapter;
    //创建两个hashmap的list类型用于存放全职跟兼职的数据
    private List<HashMap<String, Object>> part_job_Data;
    private List<HashMap<String, Object>> full_job_Data;
    private int job_type=0;//0代表兼职，1代表全职

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        if (rootView == null) {
            rootView = inflater.inflate(R.layout.fragment_one, container, false);
        }
        return rootView;
    }

    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        initData();
        initView();

        //进入职位详情
        lv_job.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> adapter, View arg1, int position,
                                    long arg3) {
                Intent intent=new Intent(getActivity(), JobDetailActivity.class);
                Bundle data = new Bundle();
                data.putSerializable("job", (HashMap<String, Object>)adapter.getItemAtPosition(position));
                intent.putExtras(data);
                startActivity(intent);
            }
        });
    }

    private void initData(){
        part_job_Data=new ArrayList<HashMap<String, Object>>();
        full_job_Data=new ArrayList<HashMap<String, Object>>();
//通过URL去UserController中使用findjianzhi方法获取数据库中的兼职数据并返回。
        OkHttpUtils.get("http://172.21.254.44:8080/portal/findjianzhi.do"
                , new OkHttpCallback() {
                    @Override
                    public void onFinish(String status, String msg) {
                        super.onFinish(status, msg);
                        //解析数据
                        Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
                        //Looper.prepare();
                        for (int i = 0; i < job.size(); i++) {
                HashMap<String, Object> hashMap = new HashMap<String, Object>();
                            hashMap.put("id", job.get(i).getId());
                            hashMap.put("img", R.drawable.ic_launcher);
                            hashMap.put("name",job.get(i).getPartjobname());
                            hashMap.put("jobType", "兼职");
                            hashMap.put("company", job.get(i).getPartjobcompany());
                            hashMap.put("time", job.get(i).getPartjobtime());
                            hashMap.put("salary", job.get(i).getPartjobsalary());
                            hashMap.put("people", job.get(i).getPartjobpeople());
                            hashMap.put("address", job.get(i).getPartjobaddress());
                            hashMap.put("payWay", job.get(i).getPartjobpayway());
                            part_job_Data.add(hashMap);
                        }
                        //Looper.loop();

                    }


                });
//通过URL去UserController中使用findquanzhi方法获取数据库中的兼职数据并返回。
         OkHttpUtils.get("http://172.21.254.44:8080/portal/findquanzhi.do"
                , new OkHttpCallback() {
                     @Override
                     public void onFinish(String status, String msg) {
                         super.onFinish(status, msg);
                         //解析数据
                         Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
                         //Looper.prepare();
                         for (int i = 0; i < job.size(); i++) {
             HashMap<String, Object> hashMap = new HashMap<String, Object>();
                             hashMap.put("id", job.get(i).getId());
                             hashMap.put("img", R.drawable.ic_launcher);
                             hashMap.put("name", job.get(i).getPartjobname());
                             hashMap.put("jobType", "全职");
                             hashMap.put("company", job.get(i).getPartjobcompany());
                             hashMap.put("time", job.get(i).getPartjobtime().toString());
                             hashMap.put("salary", job.get(i).getPartjobsalary());
                             hashMap.put("people", job.get(i).getPartjobpeople());
                             hashMap.put("address", job.get(i).getPartjobaddress());
                             hashMap.put("payWay", job.get(i).getPartjobpayway());
                             full_job_Data.add(hashMap);
                         }
                         //Looper.loop();
                     }
                 });
    }

    private void initView() {
        tv_part_job=(TextView) rootView.findViewById(R.id.tv_part_job);
        tv_full_time=(TextView) rootView.findViewById(R.id.tv_full_time);
        lv_job=(ListView) rootView.findViewById(R.id.lv_job);

        tv_part_job.setOnClickListener(this);
        tv_full_time.setOnClickListener(this);

        //刚开始进入OneFragment时，先通过adapter将兼职的信息放入listview中
        adapter=new JobAdapter(getActivity(), part_job_Data);
        lv_job.setAdapter(adapter);
    }

    //通过点击事件来切换兼职跟全职信息
    @Override
    public void onClick(View v) {
        setTextColor();
        switch (v.getId()) {
            case R.id.tv_part_job:
                tv_part_job.setTextColor(getResources().getColor(R.color.basecolor));
                job_type=0;
                //运用adapter让listview跟item联系起来。
                adapter=new JobAdapter(getActivity(), part_job_Data);
                lv_job.setAdapter(adapter);
                break;
            case R.id.tv_full_time:
                tv_full_time.setTextColor(getResources().getColor(R.color.basecolor));
                job_type=1;
                adapter=new JobAdapter(getActivity(), full_job_Data);
                lv_job.setAdapter(adapter);
                break;
        }
    }

    //改变字体的背景颜色
    public void setTextColor() {
        tv_part_job.setTextColor(getResources().getColor(R.color.text_color_primary));
        tv_full_time.setTextColor(getResources().getColor(R.color.text_color_primary));
    }

}

2.其中有两个URL，分别请求了UserController中关于兼职跟全职的请求

@RequestMapping(value = "findjianzhi.do")
    public List<Jianzhi> findjianzhi(){
        List<Jianzhi> jianzhi = iJianzhiService.FindAll();
        return jianzhi;
    }

    @RequestMapping(value = "findquanzhi.do")
    public List<Jianzhi> findquanzhi(){
        List<Jianzhi> quanzhi = iJianzhiService.FindQz();
        return quanzhi;
    }

3.Controller中调用的两个service请求在对应的IJianzhiService中定义

List<Jianzhi> FindAll();

List<Jianzhi> FindQz();

4.在impl中重写上面service的两种方法

@Override
    public List<Jianzhi> FindAll() {
        List<Jianzhi> jianzhi = jianzhiMapper.findbyall();
    return  jianzhi;
    }

 @Override
    public List<Jianzhi> FindQz() {
        List<Jianzhi> quanzhi = jianzhiMapper.findbyqz();
       return quanzhi;
    }

5.impl中调用的mapper方法在JianzhiMapper中定义，并通过mapper.xml返回数据

List<Jianzhi> findbyall();

List<Jianzhi> findbyqz();

6.mapper.xml连接数据库返回数据

<select id="findbyall" resultType="com.example.androidtest.pojo.Jianzhi" parameterType="string">
select id,partjobname,partjobimg,partjobcompany,partjobtime
,partjobsalary,partjobpeople,partjobaddress,partjobpayway
from jianzhi
</select>

<select id="findbyqz" resultType="com.example.androidtest.pojo.Jianzhi" parameterType="string">
select id,partjobname,partjobimg,partjobcompany,partjobtime,partjobsalary,partjobpeople
,partjobaddress,partjobpayway
from quanzhi
</select>

IV消息列表

1.编辑TowFragment界面用于显示消息列表

@SuppressLint("NewApi")
public class TwoFragment extends Fragment implements View.OnClickListener {
    private View rootView;
    private TextView tv_start, tv_going, tv_over;
    private ListView lv_task;
    private JobAdapter adapter;
    //用于显示三种消息的三个list
    private List<HashMap<String, Object>> start_Data;
    private List<HashMap<String, Object>> going_Data;
    private List<HashMap<String, Object>> over_Data;

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        if (rootView == null) {
            rootView = inflater
                    .inflate(R.layout.fragment_two, container, false);
        }
        return rootView;
    }

    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initData();
        initView();

        lv_task.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                                    long arg3) {
            }
        });
    }

    private void initData(){

        start_Data=new ArrayList<HashMap<String,Object>>();  //已录用
        going_Data=new ArrayList<HashMap<String,Object>>();  //未录用
        over_Data=new ArrayList<HashMap<String,Object>>();   //已报名
//调用不同的cond的URL请求，将三种cond放入三个list中。
        OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=已录用"
                , new OkHttpCallback() {
                    @Override
                    public void onFinish(String status, String msg) {
                        super.onFinish(status, msg);
                        //解析数据
                        Gson gson = new Gson();
                        List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
                        //Looper.prepare();
                        if (job.size() > 0) {
                            for (int i = 0; i < job.size(); i++) {
                                HashMap<String, Object> hashMap = new HashMap<String, Object>();
                                hashMap.put("id", job.get(i).getId());
                                hashMap.put("img", R.drawable.ic_launcher);
                                hashMap.put("name", job.get(i).getPartjobname());
                                if (job.get(i).getId() < 100) {
                                    hashMap.put("jobType", "兼职");
                                } else {
                                    hashMap.put("jobType", "全职");
                                }
                                hashMap.put("company", job.get(i).getPartjobcompany());
                                hashMap.put("time", job.get(i).getPartjobtime());
                                hashMap.put("salary", job.get(i).getPartjobsalary());
                                hashMap.put("people", job.get(i).getPartjobpeople());
                                hashMap.put("address", job.get(i).getPartjobaddress());
                                hashMap.put("payWay", job.get(i).getPartjobpayway());
                                start_Data.add(hashMap);
                            }
                            //Looper.loop();

                        }
                    }
                });

        OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=未录用"
                , new OkHttpCallback() {
                    @Override
                    public void onFinish(String status, String msg) {
                        super.onFinish(status, msg);
                        //解析数据
                        Gson gson = new Gson();
                        List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
                        //Looper.prepare();
                        if (job.size() > 0) {
                            for (int i = 0; i < job.size(); i++) {
                                HashMap<String, Object> hashMap = new HashMap<String, Object>();
                                hashMap.put("id", job.get(i).getId());
                                hashMap.put("img", R.drawable.ic_launcher);
                                hashMap.put("name", job.get(i).getPartjobname());
                                if (job.get(i).getId() < 100) {
                                    hashMap.put("jobType", "兼职");
                                } else {
                                    hashMap.put("jobType", "全职");
                                }
                                hashMap.put("company", job.get(i).getPartjobcompany());
                                hashMap.put("time", job.get(i).getPartjobtime());
                                hashMap.put("salary", job.get(i).getPartjobsalary());
                                hashMap.put("people", job.get(i).getPartjobpeople());
                                hashMap.put("address", job.get(i).getPartjobaddress());
                                hashMap.put("payWay", job.get(i).getPartjobpayway());
                                going_Data.add(hashMap);
                            }
                            //Looper.loop();

                        }
                    }
                });

        OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=已报名"
                , new OkHttpCallback() {
                    @Override
                    public void onFinish(String status, String msg) {
                        super.onFinish(status, msg);
                        //解析数据
                        Gson gson = new Gson();
                        List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
                        //Looper.prepare();
                        if (job.size() > 0) {
                            for (int i = 0; i < job.size(); i++) {
                                HashMap<String, Object> hashMap = new HashMap<String, Object>();
                                hashMap.put("id", job.get(i).getId());
                                hashMap.put("img", R.drawable.ic_launcher);
                                hashMap.put("name", job.get(i).getPartjobname());
                                if (job.get(i).getId() < 100) {
                                    hashMap.put("jobType", "兼职");
                                } else {
                                    hashMap.put("jobType", "全职");
                                }
                                hashMap.put("company", job.get(i).getPartjobcompany());
                                hashMap.put("time", job.get(i).getPartjobtime());
                                hashMap.put("salary", job.get(i).getPartjobsalary());
                                hashMap.put("people", job.get(i).getPartjobpeople());
                                hashMap.put("address", job.get(i).getPartjobaddress());
                                hashMap.put("payWay", job.get(i).getPartjobpayway());
                                over_Data.add(hashMap);
                            }
                            //Looper.loop();

                        }
                    }
                });


    }

    private void initView() {
        tv_start = (TextView) rootView.findViewById(R.id.tv_start);
        tv_going = (TextView) rootView.findViewById(R.id.tv_going);
        tv_over = (TextView) rootView.findViewById(R.id.tv_over);
        lv_task = (ListView) rootView.findViewById(R.id.lv_task);

        tv_start.setOnClickListener(this);
        tv_going.setOnClickListener(this);
        tv_over.setOnClickListener(this);

        adapter=new JobAdapter(getActivity(), start_Data);
        lv_task.setAdapter(adapter);
//        System.out.println(CommonData.user_hashMap1.get("phone"));
    }

    @Override
    public void onClick(View v) {
        setTextColor();
        switch (v.getId()) {
            case R.id.tv_start:
                adapter=new JobAdapter(getActivity(), start_Data);
                lv_task.setAdapter(adapter);
                tv_start.setTextColor(getResources().getColor(R.color.basecolor));
                break;
            case R.id.tv_going:
                adapter=new JobAdapter(getActivity(), going_Data);
                lv_task.setAdapter(adapter);
                tv_going.setTextColor(getResources().getColor(R.color.basecolor));
                break;
            case R.id.tv_over:
                adapter=new JobAdapter(getActivity(), over_Data);
                lv_task.setAdapter(adapter);
                tv_over.setTextColor(getResources().getColor(R.color.basecolor));
                break;
        }
    }

    //改变字体的背景颜色
    public void setTextColor() {
        tv_start.setTextColor(getResources().getColor(R.color.text_color_primary));
        tv_going.setTextColor(getResources().getColor(R.color.text_color_primary));
        tv_over.setTextColor(getResources().getColor(R.color.text_color_primary));
    }

}

2.根据URL请求，在UserController中接收，并调用list方法处理

 /*
    利用findPhCon方法返回一个关于id的列表，然后遍历这个列表里的id，根据id去寻找对应的工作。
  */
@RequestMapping(value = "list.do")
    public List<Jianzhi> list(String phone,String cond){
        List<Integer> list1 = iJianzhiService.findbyPhCon(phone,cond);
        ArrayList<Jianzhi> arrayList = new ArrayList<Jianzhi>();
        for(int i=0;i<list1.size();i++){
            if(list1.get(i)<100){
                Jianzhi jianzhi = iJianzhiService.selectByid(list1.get(i));
                arrayList.add(jianzhi);
            }else{
                Jianzhi quanzhi = iJianzhiService.selectByquanzhi(list1.get(i));
                arrayList.add(quanzhi);
            }
        }
        return  arrayList;
}

3.在service中定义findbyPhCon来根据phone跟cond查找对应的id，并根据id的大小来调用不同的findbyid方法

//通过电话号码跟录取信息来获取id列表
     List<Integer> findbyPhCon(String phone,String cond);
//通过id找兼职
     Jianzhi  selectByid(int id);
//通过id找全职
     Jianzhi selectByquanzhi(int id);

4.在impl中重写上述的三种方法

@Override
    public List<Integer> findbyPhCon(String phone,String cond) {
        Userwork userwork = new Userwork(phone,cond);
        List<Integer> id = jianzhiMapper.findbyPhCon(userwork);
        return id;
    }
    
@Override
    public Jianzhi  selectByid(int id) {

        return jianzhiMapper.selectByid(id) ;
    }

@Override
    public Jianzhi  selectByquanzhi(int id) {
        return jianzhiMapper.selectByquanzhi(id) ;
    }

5.在jianzhimapper中定义上述的三种方法

 //根据电话跟是否录用来找id
    List<Integer>  findbyPhCon(Userwork userwork);
//根据id来找工作
    Jianzhi selectByid(int id);
    Jianzhi  selectByquanzhi(int id);

V 我的功能

1.编辑ThreeFragment用于显示我的界面

@SuppressLint("NewApi")
public class ThreeFragment extends Fragment implements View.OnClickListener {

    private View rootView;
    private TextView tv_person, tv_about, tv_loginout, tv_nickName;
    private ImageView iv_head;

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        if (rootView == null) {
            rootView = inflater.inflate(R.layout.fragment_three, container,
                    false);
        }
        return rootView;
    }

    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initView();

    }

    @Override
    public void onResume() {
        // TODO Auto-generated method stub
        super.onResume();
        if (CommonData.isLogin)
            //如果登录了就将名字显示出来
            tv_nickName.setText(CommonData.user_hashMap1.get("name").toString());
    }

    private void initView() {
        tv_person = (TextView) rootView.findViewById(R.id.tv_person);
        tv_about = (TextView) rootView.findViewById(R.id.tv_about);
        tv_loginout = (TextView) rootView.findViewById(R.id.tv_loginout);
        tv_nickName = (TextView) rootView.findViewById(R.id.tv_nickName);
        iv_head=(ImageView)rootView.findViewById(R.id.iv_head);

        tv_person.setOnClickListener(this);
        tv_about.setOnClickListener(this);
        tv_loginout.setOnClickListener(this);
        iv_head.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.iv_head:
                if(CommonData.isLogin){
                    Intent intent = new Intent(getActivity(), PersonActivity.class);
                    startActivity(intent);
                }else{
                    Intent intent=new Intent(getActivity(), LoginActivity.class);
                    startActivity(intent);
//                    Toast.makeText(getActivity(), "用户还未登录！", Toast.LENGTH_SHORT).show();
                }
                break;
            case R.id.tv_person:
                if(CommonData.isLogin){
                    Intent intent = new Intent(getActivity(), PersonActivity.class);
                    startActivity(intent);
                }else{
                    Toast.makeText(getActivity(), "用户还未登录！", Toast.LENGTH_SHORT).show();
                }
                break;
            case R.id.tv_about:
                Intent intent = new Intent(getActivity(), AboutActivity.class);
                startActivity(intent);
                break;
            case R.id.tv_loginout:
                CommonData.isLogin = false;
                CommonData.user_hashMap=null;
                tv_nickName.setText("未登录");
                Toast.makeText(getActivity(), "退出登录！", Toast.LENGTH_SHORT).show();
                break;
        }
    }

}