Android使用OKHttp库实现视频文件的上传到服务器功能

1 服务器接口简介

此处我使用的服务器接口是使用Flask编写，具体实现代码：

# -*- coding: utf-8 -*-
from flask import Flask, render_template, jsonify, request
import time
import os
import base64
app = Flask(__name__)
UPLOAD_FOLDER = 'E:\myupload\picture'
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
basedir = os.path.abspath(os.path.dirname(__file__))
ALLOWED_EXTENSIONS = set(['txt', 'png', 'jpg', 'xls', 'JPG', 'PNG', 'xlsx', 'gif', 'GIF','mp4'])
# 用于判断文件后缀
def allowed_file(filename):
 return '.' in filename and filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS
# 上传文件
@app.route('/api/upload', methods=['POST'], strict_slashes=False)
def api_upload():
 file_dir = os.path.join(basedir, app.config['UPLOAD_FOLDER'])
 if not os.path.exists(file_dir):
  os.makedirs(file_dir)
 f = request.files['myfile'] # 从表单的file字段获取文件，myfile为该表单的name值
 if f and allowed_file(f.filename): # 判断是否是允许上传的文件类型
  fname = f.filename
  print fname
  ext = fname.rsplit('.', 1)[1] # 获取文件后缀
  unix_time = int(time.time())
  new_filename = str(unix_time) + '.' + ext # 修改了上传的文件名
  f.save(os.path.join(file_dir, new_filename)) # 保存文件到upload目录
  print new_filename
  token = base64.b64encode(new_filename)
  print token
  return jsonify({"errno": 0, "errmsg": "上传成功", "token": token})
 else:
  return jsonify({"errno": 1001, "errmsg": "上传失败"})
if __name__ == '__main__':
 app.run(debug=True)

2 Android端代码实现

代码分三部分：

分别是xml布局文件，Activity类，和Okhttp网络通信类。

2.1 xml布局文件

activity_video_upload.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical" >
 <LinearLayout
  android:layout_width="wrap_content"
  android:layout_marginLeft="10dp"
  android:layout_marginRight="10dp"
  android:layout_height="60dp"
  android:layout_marginTop="80dp"
  android:orientation="horizontal">
  <TextView
   android:layout_width="match_parent"
   android:layout_height="50dp"
   android:layout_gravity="center_vertical"
   android:gravity="center"
   android:text="视频名称："
   android:textColor="@color/black2"
   android:textSize="18dp"/>
  <EditText
   android:id="@+id/upload_video_name"
   android:layout_width="280dp"
   android:layout_height="50dp"
   android:layout_gravity="center_vertical"
   android:hint="请输入上传视频名称"
   android:layout_marginLeft="5dp"
   android:textSize="18dp"
   />
 </LinearLayout>
 <Button
  android:id="@+id/video_select"
  android:layout_width="match_parent"
  android:layout_height="44dp"
  android:layout_marginLeft="100dp"
  android:layout_marginRight="100dp"
  android:layout_marginTop="80dp"
  android:background="@drawable/exit_btn_blue"
  android:text="选择视频"
  android:textStyle="bold"
  android:textColor="@android:color/white"
  android:textSize="20sp"/>
 <Button
  android:id="@+id/video_upload"
  android:layout_width="match_parent"
  android:layout_height="44dp"
  android:layout_marginLeft="100dp"
  android:layout_marginRight="100dp"
  android:layout_marginTop="40dp"
  android:background="@drawable/exit_btn_blue"
  android:text="点击上传"
  android:textStyle="bold"
  android:textColor="@android:color/white"
  android:textSize="20sp"/>
 <TextView
  android:id="@+id/post_text"
  android:layout_marginTop="40dp"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:gravity="center"
  android:text="0" />
 <ProgressBar
  android:id="@+id/post_progress"
  android:layout_marginLeft="20dp"
  android:layout_marginRight="20dp"
  style="?android:attr/progressBarStyleHorizontal"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:max="100" />
</LinearLayout>

2.2 Activity类

VideoUploadActivity类：

package com.liu.dance.video;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.liu.dance.R;
import com.liu.dance.util.HttpUtil;
import com.liu.dance.util.ProgressListener;
import java.io.File;
import java.net.URI;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;
public class VideoUploadActivity extends AppCompatActivity {
 public static final String TAG = VideoUploadActivity.class.getName();
 public final static int VEDIO_KU = 101;
 private String path = "";//文件路径
 private ProgressBar post_progress;
 private TextView post_text;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_video_upload);
  getSupportActionBar().setTitle("视频上传");
  getSupportActionBar().setDisplayHomeAsUpEnabled(true);
  final EditText video_name = (EditText)findViewById(R.id.upload_video_name);
  post_progress = (ProgressBar) findViewById(R.id.post_progress);
  post_text = (TextView) findViewById(R.id.post_text);
  findViewById(R.id.video_select).setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View view) {
    seleteVedio();
    video_name.setText(path);
   }
  });
  findViewById(R.id.video_upload).setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View view) {
//    Toast.makeText(VideoUploadActivity.this, "路径："+basePath, Toast.LENGTH_LONG).show();
    if(path.equals(""))
     Toast.makeText(VideoUploadActivity.this, "请选择视频后，再点击上传！", Toast.LENGTH_LONG).show();
    else {
     File file = new File( path);
     String postUrl = "http://120.79.82.151/api/upload";
     HttpUtil.postFile(postUrl, new ProgressListener() {
      @Override
      public void onProgress(long currentBytes, long contentLength, boolean done) {
       Log.i(TAG, "currentBytes==" + currentBytes + "==contentLength==" + contentLength + "==done==" + done);
       int progress = (int) (currentBytes * 100 / contentLength);
       post_progress.setProgress(progress);
       post_text.setText(progress + "%");
      }
     }, new Callback() {
      @Override
      public void onFailure(Call call, IOException e) {
      }
      @Override
      public void onResponse(Call call, Response response) throws IOException {
       if (response != null) {
        String result = response.body().string();
        Log.i(TAG, "result===" + result);
       }
      }
     }, file);
    }
   }
  });
 }
 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
  switch (item.getItemId()) {
   case android.R.id.home:
    finish();
    break;
   default:
    break;
  }
  return super.onOptionsItemSelected(item);
 }
 public void seleteVedio() {
  // TODO 启动相册
  Intent intent = new Intent();
  intent.setType("video/*");
  intent.setAction(Intent.ACTION_GET_CONTENT);
  intent.addCategory(Intent.CATEGORY_OPENABLE);
  startActivityForResult(intent,VideoUploadActivity.VEDIO_KU);
 }
 /**
  * 选择回调
  */
 @Override
 public void onActivityResult(int requestCode, int resultCode, Intent data) {
  switch (requestCode) {
   // TODO 视频
   case VideoUploadActivity.VEDIO_KU:
    if (resultCode == Activity.RESULT_OK) {
     try {
      Uri uri = data.getData();
      uri = geturi(this, data);
      File file = null;
      if (uri.toString().indexOf("file") == 0) {
       file = new File(new URI(uri.toString()));
       path = file.getPath();
      } else {
       path = getPath(uri);
       file = new File(path);
      }
      if (!file.exists()) {
       break;
      }
      if (file.length() > 100 * 1024 * 1024) {
//       "文件大于100M";
       break;
      }
      //视频播放
//      mVideoView.setVideoURI(uri);
//      mVideoView.start();
      //开始上传视频，
//      submitVedio();
     } catch (Exception e) {
      String a=e+"";
     } catch (OutOfMemoryError e) {
      String a=e+"";
     }
    }
    break;
  }
 }
 public static Uri geturi(Context context, android.content.Intent intent) {
  Uri uri = intent.getData();
  String type = intent.getType();
  if (uri.getScheme().equals("file") && (type.contains("image/"))) {
   String path = uri.getEncodedPath();
   if (path != null) {
    path = Uri.decode(path);
    ContentResolver cr = context.getContentResolver();
    StringBuffer buff = new StringBuffer();
    buff.append("(").append(MediaStore.Images.ImageColumns.DATA).append("=")
      .append("'" + path + "'").append(")");
    Cursor cur = cr.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
      new String[] { MediaStore.Images.ImageColumns._ID },
      buff.toString(), null, null);
    int index = 0;
    for (cur.moveToFirst(); !cur.isAfterLast(); cur.moveToNext()) {
     index = cur.getColumnIndex(MediaStore.Images.ImageColumns._ID);
     // set _id value
     index = cur.getInt(index);
    }
    if (index == 0) {
     // do nothing
    } else {
     Uri uri_temp = Uri
       .parse("content://media/external/images/media/"
         + index);
     if (uri_temp != null) {
      uri = uri_temp;
      Log.i("urishi", uri.toString());
     }
    }
   }
  }
  return uri;
 }
 private String getPath(Uri uri) {
  String[] projection = {MediaStore.Video.Media.DATA};
  Cursor cursor = managedQuery(uri, projection, null, null, null);
  int column_index = cursor
    .getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
  cursor.moveToFirst();
  return cursor.getString(column_index);
 }
}

2.3 Okhttp网络通信类

HttpUtil类：

package com.liu.dance.util;
import android.util.Log;
import java.io.File;
import java.util.concurrent.TimeUnit;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
/**
 * Created by 舞动的心 on 2018/3/5.
 */
public class HttpUtil {
 private static OkHttpClient okHttpClient = new OkHttpClient.Builder().connectTimeout(10000, TimeUnit.MILLISECONDS)
   .readTimeout(10000,TimeUnit.MILLISECONDS)
   .writeTimeout(10000, TimeUnit.MILLISECONDS).build();
 public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
 public static final MediaType MEDIA_TYPE_MARKDOWN = MediaType.parse("text/x-markdown; charset=utf-8");public static void postFile(String url, final ProgressListener listener, okhttp3.Callback callback, File...files){
  MultipartBody.Builder builder = new MultipartBody.Builder();
  builder.setType(MultipartBody.FORM);
  Log.i("huang","files[0].getName()=="+files[0].getName());
  //第一个参数要与Servlet中的一致
  builder.addFormDataPart("myfile",files[0].getName(), RequestBody.create(MediaType.parse("application/octet-stream"),files[0]));
  MultipartBody multipartBody = builder.build();
  Request request = new Request.Builder().url(url).post(new ProgressRequestBody(multipartBody,listener)).build();
  okHttpClient.newCall(request).enqueue(callback);
 }
}

 ProgressListener接口：

package com.liu.dance.util;
/**
 * Created by 舞动的心 on 2018/3/8.
 */
public interface ProgressListener {
 void onProgress(long currentBytes, long contentLength, boolean done);
}

ProgressModel类：

package com.liu.dance.util;
import android.os.Parcel;
import android.os.Parcelable;
/**
 * Created by 舞动的心 on 2018/3/8.
 */
public class ProgressModel implements Parcelable {
 private long currentBytes;
 private long contentLength;
 private boolean done = false;
 public ProgressModel(long currentBytes, long contentLength, boolean done) {
  this.currentBytes = currentBytes;
  this.contentLength = contentLength;
  this.done = done;
 }
 public long getCurrentBytes() {
  return currentBytes;
 }
 public void setCurrentBytes(long currentBytes) {
  this.currentBytes = currentBytes;
 }
 public long getContentLength() {
  return contentLength;
 }
 public void setContentLength(long contentLength) {
  this.contentLength = contentLength;
 }
 public boolean isDone() {
  return done;
 }
 public void setDone(boolean done) {
  this.done = done;
 }
 private static final Creator<ProgressModel> CREATOR = new Creator<ProgressModel>() {
  @Override
  public ProgressModel createFromParcel(Parcel parcel) {
   return new ProgressModel(parcel);
  }
  @Override
  public ProgressModel[] newArray(int i) {
   return new ProgressModel[i];
  }
 };
 @Override
 public int describeContents() {
  return 0;
 }
 @Override
 public void writeToParcel(Parcel parcel, int i) {
  parcel.writeLong(currentBytes);
  parcel.writeLong(contentLength);
  parcel.writeByte((byte) (done==true?1:0));
 }
 protected ProgressModel(Parcel parcel) {
  currentBytes = parcel.readLong();
  contentLength = parcel.readLong();
  done = parcel.readByte()!=0;
 }
}

 ProgressRequestBody类：

package com.liu.dance.util;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import java.io.IOException;
import okhttp3.MediaType;
import okhttp3.RequestBody;
import okio.Buffer;
import okio.BufferedSink;
import okio.ForwardingSink;
import okio.Okio;
import okio.Sink;
/**
 * Created by 舞动的心 on 2018/3/8.
 */
public class ProgressRequestBody extends RequestBody {
 public static final int UPDATE = 0x01;
 private RequestBody requestBody;
 private ProgressListener mListener;
 private BufferedSink bufferedSink;
 private MyHandler myHandler;
 public ProgressRequestBody(RequestBody body, ProgressListener listener) {
  requestBody = body;
  mListener = listener;
  if (myHandler==null){
   myHandler = new MyHandler();
  }
 }
 class MyHandler extends Handler {
  public MyHandler() {
   super(Looper.getMainLooper());
  }
  @Override
  public void handleMessage(Message msg) {
   switch (msg.what){
    case UPDATE:
     ProgressModel progressModel = (ProgressModel) msg.obj;
     if (mListener!=null)mListener.onProgress(progressModel.getCurrentBytes(),progressModel.getContentLength(),progressModel.isDone());
     break;
   }
  }
 }
 @Override
 public MediaType contentType() {
  return requestBody.contentType();
 }
 @Override
 public long contentLength() throws IOException {
  return requestBody.contentLength();
 }
 @Override
 public void writeTo(BufferedSink sink) throws IOException {
  if (bufferedSink==null){
   bufferedSink = Okio.buffer(sink(sink));
  }
  //写入
  requestBody.writeTo(bufferedSink);
  //刷新
  bufferedSink.flush();
 }
 private Sink sink(BufferedSink sink) {
  return new ForwardingSink(sink) {
   long bytesWritten = 0L;
   long contentLength = 0L;
   @Override
   public void write(Buffer source, long byteCount) throws IOException {
    super.write(source, byteCount);
    if (contentLength==0){
     contentLength = contentLength();
    }
    bytesWritten += byteCount;
    //回调
    Message msg = Message.obtain();
    msg.what = UPDATE;
    msg.obj = new ProgressModel(bytesWritten,contentLength,bytesWritten==contentLength);
    myHandler.sendMessage(msg);
   }
  };
 }
}

界面效果：

总结

以上所述是小编给大家介绍的Android使用OKHttp库实现视频文件的上传到服务器，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对小牛知识库网站的支持！