文章介绍大致分以下几步:
1. 后台数据分页查询实现;
2. 前台bootstrap样式+datatable插件 数据渲染;
一、后台真分页实现:
主要涉及以下内容:
1、数据库分页插件类PagePlugin.java;
2、分页参数类Page.java;
3、排序类SortCond.java;
4、用来返回datatables格式数据的DataTables.java(不使用datatables时不需要);
5、mybatis-config.xml配置插件;
6、相关mapper.xml文件SQL;
7、controller层参数传递;
直接上代码:
1、PagePlugin.java
package com.bi.dao.base.plugin;
import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import java.util.Properties;
import javax.xml.bind.PropertyException;
import org.apache.ibatis.executor.ErrorContext;
import org.apache.ibatis.executor.ExecutorException;
import org.apache.ibatis.executor.statement.BaseStatementHandler;
import org.apache.ibatis.executor.statement.RoutingStatementHandler;
import org.apache.ibatis.executor.statement.StatementHandler;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.mapping.ParameterMode;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.reflection.property.PropertyTokenizer;
import org.apache.ibatis.scripting.xmltags.ForEachSqlNode;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.type.TypeHandler;
import org.apache.ibatis.type.TypeHandlerRegistry;
import com.bi.common.base.entity.Page;
import com.bi.common.util.ReflectHelper;
import com.bi.common.util.Tools;
/**
*
* <p>功能描述:</p>
* <p>Company: </p>
* @author Jeff
* @version 1.0 2015年12月9日
*/
@Intercepts({@Signature(type=StatementHandler.class,method="prepare",args={Connection.class})})
public class PagePlugin implements Interceptor {
private static String dialect = ""; //数据库方言
private static String pageSqlId = ""; //mapper.xml中需要拦截的ID(正则匹配)
public Object intercept(Invocation ivk) throws Throwable {
// TODO Auto-generated method stub
if(ivk.getTarget() instanceof RoutingStatementHandler){
RoutingStatementHandler statementHandler = (RoutingStatementHandler)ivk.getTarget();
BaseStatementHandler delegate = (BaseStatementHandler) ReflectHelper.getValueByFieldName(statementHandler, "delegate");
MappedStatement mappedStatement = (MappedStatement) ReflectHelper.getValueByFieldName(delegate, "mappedStatement");
if(mappedStatement.getId().matches(pageSqlId)){ //拦截需要分页的SQL
BoundSql boundSql = delegate.getBoundSql();
Object parameterObject = boundSql.getParameterObject();//分页SQL<select>中parameterType属性对应的实体参数,即Mapper接口中执行分页方法的参数,该参数不得为空
if(parameterObject==null){
throw new NullPointerException("parameterObject尚未实例化!");
}else{
Connection connection = (Connection) ivk.getArgs()[0];
String sql = boundSql.getSql();
//String countSql = "select count(0) from (" + sql+ ") as tmp_count"; //记录统计
String countSql = "select count(0) from (" + sql+ ") tmp_count"; //记录统计 == oracle 加 as 报错(SQL command not properly ended)
PreparedStatement countStmt = connection.prepareStatement(countSql);
BoundSql countBS = new BoundSql(mappedStatement.getConfiguration(),countSql,boundSql.getParameterMappings(),parameterObject);
setParameters(countStmt,mappedStatement,countBS,parameterObject);
ResultSet rs = countStmt.executeQuery();
int count = 0;
if (rs.next()) {
count = rs.getInt(1);
}
rs.close();
countStmt.close();
//System.out.println(count);
Page page = null;
if(parameterObject instanceof Page){ //参数就是Page实体
page = (Page) parameterObject;
page.setEntityOrField(true);
page.setTotalResult(count);
}else{ //参数为某个实体,该实体拥有Page属性
Field pageField = ReflectHelper.getFieldByFieldName(parameterObject,"page");
if(pageField!=null){
page = (Page) ReflectHelper.getValueByFieldName(parameterObject,"page");
if(page==null)
page = new Page();
page.setEntityOrField(false);
page.setTotalResult(count);
ReflectHelper.setValueByFieldName(parameterObject,"page", page); //通过反射,对实体对象设置分页对象
}else{
throw new NoSuchFieldException(parameterObject.getClass().getName()+"不存在 page 属性!");
}
}
String pageSql = generatePageSql(sql,page);
ReflectHelper.setValueByFieldName(boundSql, "sql", pageSql); //将分页sql语句反射回BoundSql.
}
}
}
return ivk.proceed();
}
/**
* 对SQL参数(?)设值,参考org.apache.ibatis.executor.parameter.DefaultParameterHandler
* @param ps
* @param mappedStatement
* @param boundSql
* @param parameterObject
* @throws SQLException
*/
private void setParameters(PreparedStatement ps,MappedStatement mappedStatement,BoundSql boundSql,Object parameterObject) throws SQLException {
ErrorContext.instance().activity("setting parameters").object(mappedStatement.getParameterMap().getId());
List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
if (parameterMappings != null) {
Configuration configuration = mappedStatement.getConfiguration();
TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
MetaObject metaObject = parameterObject == null ? null: configuration.newMetaObject(parameterObject);
for (int i = 0; i < parameterMappings.size(); i++) {
ParameterMapping parameterMapping = parameterMappings.get(i);
if (parameterMapping.getMode() != ParameterMode.OUT) {
Object value;
String propertyName = parameterMapping.getProperty();
PropertyTokenizer prop = new PropertyTokenizer(propertyName);
if (parameterObject == null) {
value = null;
} else if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
value = parameterObject;
} else if (boundSql.hasAdditionalParameter(propertyName)) {
value = boundSql.getAdditionalParameter(propertyName);
} else if (propertyName.startsWith(ForEachSqlNode.ITEM_PREFIX)&& boundSql.hasAdditionalParameter(prop.getName())) {
value = boundSql.getAdditionalParameter(prop.getName());
if (value != null) {
value = configuration.newMetaObject(value).getValue(propertyName.substring(prop.getName().length()));
}
} else {
value = metaObject == null ? null : metaObject.getValue(propertyName);
}
TypeHandler typeHandler = parameterMapping.getTypeHandler();
if (typeHandler == null) {
throw new ExecutorException("There was no TypeHandler found for parameter "+ propertyName + " of statement "+ mappedStatement.getId());
}
typeHandler.setParameter(ps, i + 1, value, parameterMapping.getJdbcType());
}
}
}
}
/**
* 根据数据库方言,生成特定的分页sql
* @param sql
* @param page
* @return
*/
private String generatePageSql(String sql,Page page){
if(page!=null && Tools.notEmpty(dialect)){
StringBuffer pageSql = new StringBuffer();
if("mysql".equals(dialect)){
pageSql.append(sql);
pageSql.append(" limit "+page.getCurrentResult()+","+page.getShowCount());
}else if("oracle".equals(dialect)){
pageSql.append("select * from (select tmp_tb.*,ROWNUM row_id from (");
pageSql.append(sql);
//pageSql.append(") as tmp_tb where ROWNUM<=");
pageSql.append(") tmp_tb where ROWNUM<=");
pageSql.append(page.getCurrentResult()+page.getShowCount());
pageSql.append(") where row_id>");
pageSql.append(page.getCurrentResult());
}
return pageSql.toString();
}else{
return sql;
}
}
public Object plugin(Object arg0) {
// TODO Auto-generated method stub
return Plugin.wrap(arg0, this);
}
public void setProperties(Properties p) {
dialect = p.getProperty("dialect");
if (Tools.isEmpty(dialect)) {
try {
throw new PropertyException("dialect property is not found!");
} catch (PropertyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
pageSqlId = p.getProperty("pageSqlId");
if (Tools.isEmpty(pageSqlId)) {
try {
throw new PropertyException("pageSqlId property is not found!");
} catch (PropertyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
2、Page.java
package com.bi.common.base.entity;
import com.bi.common.util.Const;
import com.bi.common.util.PageData;
import com.bi.common.util.Tools;
public class Page {
private int showCount; // 每页显示记录数
private int totalPage; // 总页数
private int totalResult; // 总记录数
private int currentPage; // 当前页
private int currentResult; // 当前记录起始索引
private boolean entityOrField; // true:需要分页的地方,传入的参数就是Page实体;false:需要分页的地方,传入的参数所代表的实体拥有Page属性
private String pageStr; // 最终页面显示的底部翻页导航,详细见:getPageStr();
private PageData pd = new PageData();
public Page() {
try {
this.showCount = Integer.parseInt(Tools.readTxtFile(Const.PAGE));
} catch (Exception e) {
this.showCount = 15;
}
}
public int getTotalPage() {
if (totalResult % showCount == 0)
totalPage = totalResult / showCount;
else
totalPage = totalResult / showCount + 1;
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public int getTotalResult() {
return totalResult;
}
public void setTotalResult(int totalResult) {
this.totalResult = totalResult;
}
public int getCurrentPage() {
if (currentPage <= 0)
currentPage = 1;
if (currentPage > getTotalPage())
currentPage = getTotalPage();
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
this.currentResult = (currentPage - 1) * getShowCount();
}
public String getPageStr() {
StringBuffer sb = new StringBuffer();
if (totalResult > 0) {
sb.append(" <ul>\n");
if (currentPage == 1) {
sb.append(" <li><a>共<font color=red>" + totalResult
+ "</font>条</a></li>\n");
sb.append(" <li><input type=\"number\" value=\"\" id=\"toGoPage\" style=\"width:50px;text-align:center;float:left\" placeholder=\"页码\"/></li>\n");
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"toTZ();\" class=\"btn btn-mini btn-success\">跳转</a></li>\n");
sb.append(" <li><a>首页</a></li>\n");
sb.append(" <li><a>上页</a></li>\n");
} else {
sb.append(" <li><a>共<font color=red>" + totalResult
+ "</font>条</a></li>\n");
sb.append(" <li><input type=\"number\" value=\"\" id=\"toGoPage\" style=\"width:50px;text-align:center;float:left\" placeholder=\"页码\"/></li>\n");
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"toTZ();\" class=\"btn btn-mini btn-success\">跳转</a></li>\n");
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"nextPage(1)\">首页</a></li>\n");
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"nextPage("
+ (currentPage - 1) + ")\">上页</a></li>\n");
}
int showTag = 5;// 分页标签显示数量
int startTag = 1;
if (currentPage > showTag) {
startTag = currentPage - 1;
}
int endTag = startTag + showTag - 1;
for (int i = startTag; i <= totalPage && i <= endTag; i++) {
if (currentPage == i)
sb.append("<li><a><font color='#808080'>" + i
+ "</font></a></li>\n");
else
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"nextPage("
+ i + ")\">" + i + "</a></li>\n");
}
if (currentPage == totalPage) {
sb.append(" <li><a>下页</a></li>\n");
sb.append(" <li><a>尾页</a></li>\n");
} else {
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"nextPage("
+ (currentPage + 1) + ")\">下页</a></li>\n");
sb.append(" <li style=\"cursor:pointer;\"><a onclick=\"nextPage("
+ totalPage + ")\">尾页</a></li>\n");
}
sb.append(" <li><a>第" + currentPage + "页</a></li>\n");
sb.append(" <li><a>共" + totalPage + "页</a></li>\n");
sb.append(" <li><select title='显示条数' style=\"width:55px;float:left;\" onchange=\"changeCount(this.value)\">\n");
sb.append(" <option value='" + showCount + "'>" + showCount
+ "</option>\n");
sb.append(" <option value='10'>10</option>\n");
sb.append(" <option value='20'>20</option>\n");
sb.append(" <option value='30'>30</option>\n");
sb.append(" <option value='40'>40</option>\n");
sb.append(" <option value='50'>50</option>\n");
sb.append(" <option value='60'>60</option>\n");
sb.append(" <option value='70'>70</option>\n");
sb.append(" <option value='80'>80</option>\n");
sb.append(" <option value='90'>90</option>\n");
sb.append(" <option value='99'>99</option>\n");
sb.append(" </select>\n");
sb.append(" </li>\n");
sb.append("</ul>\n");
sb.append("<script type=\"text/javascript\">\n");
// 换页函数
sb.append("function nextPage(page){");
sb.append(" top.jzts();");
sb.append(" if(true && document.forms[0]){\n");
sb.append(" var url = document.forms[0].getAttribute(\"action\");\n");
sb.append(" if(url.indexOf('?')>-1){url += \"&"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";}\n");
sb.append(" else{url += \"?"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";}\n");
sb.append(" url = url + page + \"&"
+ (entityOrField ? "showCount" : "page.showCount") + "="
+ showCount + "\";\n");
sb.append(" document.forms[0].action = url;\n");
sb.append(" document.forms[0].submit();\n");
sb.append(" }else{\n");
sb.append(" var url = document.location+'';\n");
sb.append(" if(url.indexOf('?')>-1){\n");
sb.append(" if(url.indexOf('currentPage')>-1){\n");
sb.append(" var reg = /currentPage=\\d*/g;\n");
sb.append(" url = url.replace(reg,'currentPage=');\n");
sb.append(" }else{\n");
sb.append(" url += \"&"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";\n");
sb.append(" }\n");
sb.append(" }else{url += \"?"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";}\n");
sb.append(" url = url + page + \"&"
+ (entityOrField ? "showCount" : "page.showCount") + "="
+ showCount + "\";\n");
sb.append(" document.location = url;\n");
sb.append(" }\n");
sb.append("}\n");
// 调整每页显示条数
sb.append("function changeCount(value){");
sb.append(" top.jzts();");
sb.append(" if(true && document.forms[0]){\n");
sb.append(" var url = document.forms[0].getAttribute(\"action\");\n");
sb.append(" if(url.indexOf('?')>-1){url += \"&"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";}\n");
sb.append(" else{url += \"?"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";}\n");
sb.append(" url = url + \"1&"
+ (entityOrField ? "showCount" : "page.showCount")
+ "=\"+value;\n");
sb.append(" document.forms[0].action = url;\n");
sb.append(" document.forms[0].submit();\n");
sb.append(" }else{\n");
sb.append(" var url = document.location+'';\n");
sb.append(" if(url.indexOf('?')>-1){\n");
sb.append(" if(url.indexOf('currentPage')>-1){\n");
sb.append(" var reg = /currentPage=\\d*/g;\n");
sb.append(" url = url.replace(reg,'currentPage=');\n");
sb.append(" }else{\n");
sb.append(" url += \"1&"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";\n");
sb.append(" }\n");
sb.append(" }else{url += \"?"
+ (entityOrField ? "currentPage" : "page.currentPage")
+ "=\";}\n");
sb.append(" url = url + \"&"
+ (entityOrField ? "showCount" : "page.showCount")
+ "=\"+value;\n");
sb.append(" document.location = url;\n");
sb.append(" }\n");
sb.append("}\n");
// 跳转函数
sb.append("function toTZ(){");
sb.append("var toPaggeVlue = document.getElementById(\"toGoPage\").value;");
sb.append("if(toPaggeVlue == ''){document.getElementById(\"toGoPage\").value=1;return;}");
sb.append("if(isNaN(Number(toPaggeVlue))){document.getElementById(\"toGoPage\").value=1;return;}");
sb.append("nextPage(toPaggeVlue);");
sb.append("}\n");
sb.append("</script>\n");
}
pageStr = sb.toString();
return pageStr;
}
public void setPageStr(String pageStr) {
this.pageStr = pageStr;
}
public int getShowCount() {
return showCount;
}
public void setShowCount(int showCount) {
this.showCount = showCount;
}
public int getCurrentResult() {
currentResult = (getCurrentPage() - 1) * getShowCount();
if (currentResult < 0)
currentResult = 0;
return currentResult;
}
public void setCurrentResult(int currentResult) {
this.currentResult = currentResult;
this.currentPage = (currentResult / showCount) + 1;
}
public boolean isEntityOrField() {
return entityOrField;
}
public void setEntityOrField(boolean entityOrField) {
this.entityOrField = entityOrField;
}
public PageData getPd() {
return pd;
}
public void setPd(PageData pd) {
this.pd = pd;
}
}
3、SortCond.java
package com.bi.common.base.entity;
/**
* <p>功能描述:排序类</p>
* <p>Company: </p>
* @author Jeff
* @version 1.0 2015年12月11日
*/
public class SortCond {
/**
* 排序类型枚举
*/
public enum Order {
ASC, DESC
}
/**
* 排序类型
*/
private String column;
/**
* 排序类型
*/
private Order order;
public SortCond(String column) {
this(column, Order.DESC);
}
public SortCond(String column, Order order) {
this.column = column;
this.order = order;
}
public String getColumn() {
return column;
}
public Order getOrder() {
return order;
}
}
4、DataTables.java
/**
* 文件名: DataTables.java
* 版 权: Copyright © 2013 - 2015 ThinkJF, Inc. All Rights Reserved
* 描 述: <描述>
* 创建人: Jeff
* 创建时间: 2015年12月10日
*/
package com.bi.common.base.entity;
import java.io.Serializable;
import java.util.List;
import org.apache.poi.ss.formula.functions.T;
/**
* <p>功能描述:datatables数据返回实体类</p>
* <p>Company: 上海丞风智能科技有限公司</p>
* @author Jeff
* @version 1.0 2015年12月10日
*/
public class DataTables<T> implements Serializable{
private static final long serialVersionUID = 8172262630982712326L;
//与datatales 加载的“dataSrc"对应
private List<T> data;
//过滤后的记录数
private int recordsFiltered;
//数据库里总共记录数
private int recordsTotal;
//请求次数计数器
private int draw;
private Boolean success;
public List<T> getData() {
return data;
}
public void setData(List<T> data) {
this.data = data;
}
public int getRecordsFiltered() {
return recordsFiltered;
}
public void setRecordsFiltered(int recordsFiltered) {
this.recordsFiltered = recordsFiltered;
}
public int getRecordsTotal() {
return recordsTotal;
}
public void setRecordsTotal(int recordsTotal) {
this.recordsTotal = recordsTotal;
}
public int getDraw() {
return draw;
}
public void setDraw(int draw) {
this.draw = draw;
}
}
5、mybatis-config.xml配置插件
指定方言为mysql,且配置sqlid以_page结尾的都走分页查询
<plugins>
<plugin interceptor="com.bi.dao.base.plugin.PagePlugin">
<property name="dialect" value="mysql"/>
<property name="pageSqlId" value=".*_page"/>
</plugin>
</plugins>
6、相关mapper.xml文件SQL
拿查询用户列表来举例:
<sql id="userSort">
<if test="pd.sortCond != null and pd.sortCond.size() != 0">
order by
<foreach collection="pd.sortCond" item="sortCond" separator=",">
${sortCond.column} ${sortCond.order}
</foreach>
</if>
</sql>
<select id="listAllUser_page" parameterType="Page" resultMap="userResultMap" useCache="false">
select u.USER_ID,
u.USER_NAME,
u.USER_PWD,
u.USER_SEX,
u.USER_ADDRESS,
u.E_MAIL,
u.USER_PHOTO,
u.USER_PHONE,
u.DEPT_ID,
u.USER_STATUS,
u.CREATE_BY,
u.CREATE_TIME,
u.LAST_LOGIN_TIME,
u.SKIN
from BI_SYS_USER u
where u.USER_NAME != 'admin'
<if test="pd.userName != null and pd.userName != ''"><!-- 关键词检索 -->
and u.USER_NAME LIKE CONCAT(CONCAT('%', #{pd.userName}),'%')
</if>
<if test="pd.userPhone != null and pd.userPhone != ''"><!-- 手机号码检索 -->
and u.USER_PHONE=#{pd.userPhone}
</if>
<if test="pd.deptId!=null and pd.deptId!=''"><!-- 部门检索 -->
and u.DEPT_ID = #{pd.deptId}
</if>
<if test="pd.userStatus!=null and pd.userStatus!=''"><!-- 用户状态检索 -->
and u.USER_STATUS = #{pd.userStatus}
</if>
<include refid="userSort"></include>
</select>
7、controller类部分代码:
@RequestMapping(value="/userSearch")
@ResponseBody
public Object userSearch(Page page){
PageData pd = new PageData();
pd = this.getPageData();
page.setPd(pd);
//调用封装方法,构造page参数
page = DataTablesUtil.constructPd(page);
//构造分页查询param------end------------
//分页查询(查询SQL id必须以"_page"结尾)
List<User> userList = userService.listAllUser_page(page);
//设置datatables要求返回的数据-----start-------
/**
* draw:请求次数计数器 要求原样返回
* Data:查询结果List
* recordsTotal:查询结果总数
* recordsFiltered:过滤条件后的结果总数(一般与查询结果总数一致)
*/
DataTables<User> dts = new DataTables();
dts.setDraw(Integer.parseInt(pd.get("draw").toString()));
dts.setData(userList);
dts.setRecordsTotal(page.getTotalResult());
dts.setRecordsFiltered(page.getTotalResult());
//设置datatables要求返回的数据-----end-------
return dts;
}
8、补充一个DataTablesUtil.java
主要实现将前端传过来的参数处理后构造好Page类供查询service方法使用。
/**
* 文件名: DataTablesUtil.java
* 版 权: Copyright © 2013 - 2015 ThinkJF, Inc. All Rights Reserved
* 描 述: <描述>
* 创建人: Jeff
* 创建时间: 2015年12月11日
*/
package com.bi.common.util;
import java.util.ArrayList;
import java.util.List;
import com.bi.common.base.entity.Page;
import com.bi.common.base.entity.SortCond;
/**
* <p>
* 功能描述:dataTables工具类
* </p>
* <p>
* Company:
* </p>
*
* @author Jeff
* @version 1.0 2015年12月11日
*/
public class DataTablesUtil {
/**
* 构造Page类,包括设置startIndex,pageSize以及pd对象的查询参数及排序参数
* @author Jeff
* @version 1.0 2015年12月11日
* @param page
* @return
*/
public static Page constructPd(Page page) {
PageData pd = new PageData();
pd = page.getPd();
// 获取前端datatables参数---------start--------------
// desc:draw,start,length
// 计数器
int draw = Integer.parseInt(pd.get("draw").toString());
// 数据起始位置
int startIndex = Integer.parseInt(pd.get("startIndex").toString());
// 数据长度
int pageSize = Integer.parseInt(pd.get("pageSize").toString());
// 根据列索引获取该列列名
String ColumnName = pd.getString("sortName");
// 是降序还是升序
String sortDir = pd.getString("sortDir");
// 获取前端参数---------end--------------
// 构造分页查询param------start------------
// desc:pageSize,currentResult,sortCond
page.setShowCount(pageSize);
page.setCurrentResult(startIndex);
// 排序设置
if (ColumnName != null && !"".equals(ColumnName)) {
List<SortCond> lsc = new ArrayList<SortCond>();
SortCond sc = new SortCond(ColumnName,
"asc".equals(sortDir) ? SortCond.Order.ASC
: SortCond.Order.DESC);
lsc.add(sc);
pd.put("sortCond", lsc);
}
//将设置覆盖原pd
page.setPd(pd);
return page;
}
}
二、前台bootstrap样式+datatable插件 数据渲染;
涉及到以下内容:
1、bootstrap与datatables相关css与js;
2、构造dataTables相关对象,设置相关参数;
3、html代码
1、css与js,可以直接上官网扒
dataTables.bootstrap.min.css
buttons.bootstrap.min.css
select.bootstrap.min.css
editor.bootstrap.min.css
jquery.dataTables.min.js
dataTables.bootstrap.min.js
dataTables.buttons.min.js
buttons.bootstrap.min.js
dataTables.select.min.js
dataTables.editor.min.js
editor.bootstrap.min.js
2、构造dataTables相关对象,设置相关参数
<script type="text/javascript">
//声明biUserManage对象
var biUserManage = {
userTable : null,
getQueryCondition : function(data) {
var param = {};
//处理datatables排序参数
if (data.order&&data.order.length&&data.order[0]) {
var indexColumn = data.order[0].column;
param.sortName = data.columns[indexColumn].name;
param.sortDir = data.order[0].dir;
}
//处理查询参数
param.userName = $("#searchUserName").val();
param.userPhone = $("#searchPhone").val();
param.deptId = $("#searchDeptId").val();
param.userStatus = $("#searchStatus").val();
//处理分页参数
param.startIndex = data.start;
param.pageSize = data.length;
param.draw = data.draw;
return param;
}
};
//初始化datatables
$(function(){
biUserManage.userTable = $('#usertable').dataTable($.extend({
//设置ajax数据源请求
ajax: function(data, callback){
//封装请求参数
var param = biUserManage.getQueryCondition(data);
$.ajax({
type: "POST",
url: "${rc.contextPath}/user/userSearch?systime=" + new Date().getTime(),
data: param,
dataType: "json",
success: function(result) {
callback(result);
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("查询失败");
//$('#div-table-container').spinModal(false);
}
});
},
//默认按哪列排序
order: [ 9, 'desc' ],
//设置列相关信息
columns: [//列定义参数
CONSTANT.DATA_TABLES.CELL_CHECKBOX,
{
"data": "userId",
"name": "USER_ID"
},
{
"data": "userName",
"name": "USER_NAME"
},
{
"data" : "userSex",
"name": "USER_SEX",
"width" : "80px",
"render" : function(data,type, row, meta) {
if(data==1){
return '<i class="fa fa-male"></i> 男';
}else{
return '<i class="fa fa-female"></i> 女';
}
},
"orderable" : false
},
{
"data":"email",
"name": "E_MAIL",
"orderable" : false
},
{
"data":"userPhone",
"name": "USER_PHONE",
"orderable" : false
},
{
"data":"dept.deptName",
"name": "DEPT_ID"
},
{
"data": "userAddress",
"name": "USER_ADDRESS",
"orderable" : false
},
{
"data" : "userStatus",
"name": "USER_STATUS",
"width" : "80px",
"render" : function(data,type, row, meta) {
if(data==0){
return "注销";
}else if(data==1){
return "正常";
}else if(data==2){
return "暂停";
}
}
},
{
"data": "lastLoginTime",
"name": "LAST_LOGIN_TIME",
"width" : "120px"
},
{
"data": null,
"width" : "80px",
"defaultContent":"",
"orderable" : false
}
],
//在最后一列增加编辑删除按钮
"createdRow": function ( row, data, index ) {
//行渲染回调,在这里可以对该行dom元素进行任何操作
$('td', row).eq(10).addClass("taC");
var btnEdit = $('<div class="userM-table-function"><a class="fa fa-pencil-square text-success"></a><div class="line"></div><a class="fa fa-trash text-danger"></a></div>');
$('td', row).eq(10).append(btnEdit);
}
},CONSTANT.DATA_TABLES.DEFAULT_OPTION)).api();
});
//初始化其它
$(function(){
//加载搜索按钮点击事件
$("#btnSearch").click(function(){
biUserManage.isSearch = true;
biUserManage.userTable.ajax.reload();
});
});
/*常量*/
var CONSTANT = {
DATA_TABLES : {
DEFAULT_OPTION : { //DataTables初始化选项
"language": {
"sProcessing": "处理中...",
"sLengthMenu": "每页 _MENU_ 项",
"sZeroRecords": "没有匹配结果",
"sInfo": "当前显示第 _START_ 至 _END_ 项,共 _TOTAL_ 项。",
"sInfoEmpty": "当前显示第 0 至 0 项,共 0 项",
"sInfoFiltered": "(由 _MAX_ 项结果过滤)",
"sInfoPostFix": "",
"sSearch": "搜索:",
"sUrl": "",
"sEmptyTable": "表中数据为空",
"sLoadingRecords": "载入中...",
"sInfoThousands": ",",
"oPaginate": {
"sFirst": "首页",
"sPrevious": "上页",
"sNext": "下页",
"sLast": "末页",
"sJump": "跳转"
},
"oAria": {
"sSortAscending": ": 以升序排列此列",
"sSortDescending": ": 以降序排列此列"
}
},
"processing" : false, //隐藏加载提示,自行处理
"serverSide" : true,
"searching" : false,//禁用表格内搜索
"lengthMenu" :[10,20,50,100]//定义页面长度组件里面的选项
},
CELL_CHECKBOX : { //复选框单元格
"className" : "cell-chechbox",
"orderable" : false,
"data": null,
"width" : "40px",
"render" : function(data, type, row, meta) {
return '<input type="checkbox" >';
}
}
}
};
</script>
3、html代码
<table class="table table-bordered table-hover " id="usertable">
<thead>
<tr>
<th class="taC resource-content-check"><input type="checkbox"
class="check" id="allcheck" /></th>
<th class="taC cp" width="5%">编号</th>
<th class="taC cp" width="10%">姓名</th>
<th class="taC cp" width="5%">性别</th>
<th class="taC cp" width="10%">邮箱</th>
<th class="taC cp" width="10%">联系电话</th>
<th class="taC cp" width="10%">所属部门</th>
<th class="taC cp" width="15%">地址</th>
<th class="taC" width="5%">状态</th>
<th class="taC" width="18%">最后登录时间</th>
<th class="taC" width="10%">操作</th>
</tr>
</thead>
</table>
截止到这里,基本上整个代码都差不多贴完了,大家可以根据自己的项目实际情况进行修改;
这里可能还涉及一个前端与后台用json格式传递数据的问题,可以参照我关于这个问题的文章处理。
贴两个有关dataTables网站地址:
dataTables中文网:http://datatables.club/example/
dataTables参数说明:http://www.suchso.com/UIweb/jquery-DataTables-use-opertions-zhongwen-shuoming.html