安卓实现okhttp上传视频到php服务器

简介

由于Android给我们提供的Http请求方式之一 ：HttpURLConnection，使用起来非常麻烦，所以一般我们实际开发并不会用HttpURLConnection和HttpClient，而是会使用别人封装好的第三方网络请求框架，诸如：Volley，android-async-http，loopj,OkHttp等，因为网络操作涉及到 异步以及多线程，自己动手写的话，很麻烦，所以实际开发还是直接用第三方。
这里我们选择的是近来最火的开源HTTP框架——OKHttp，来实现Android客户端的工作。
GitHub地址：https://github.com/square/okhttp
上传功能包含了一个简单的文件选择器
下载功能目前做得极不完善，几乎等于没做，后续还会改进

准备工作

新建一个安卓工程
从官方网站上下载okhttp和okio的jar包
okhttp的下载地址：http://square.github.io/okhttp/
okio的下载地址：
https://repo1.maven.org/maven2/com/squareup/okio/okio/1.11.0/okio-1.11.0.jar
okio的jar包的下载地址其实就在okhttp的官网上，不一定用我给的链接去下载。
PS.也可以通过Maven或者Gradle来导入，但因为速度太慢，所以我直接下了jar包
3.将这两个jar包导入到工程中，放在libs目录下
右键点击jar包，选择Add As Library就行了，两个包都要添加。

下面是具体代码

package com.example.ywy.mycloud1;

import java.io.FileOutputStream;
import java.io.IOException;

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.TimeUnit;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Interceptor;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
import okio.Buffer;
import okio.BufferedSink;
import okio.BufferedSource;
import okio.ForwardingSink;
import okio.ForwardingSource;
import okio.Okio;
import okio.Sink;
import okio.Source;

public class MainActivity extends AppCompatA
4000
ctivity {

private OkHttpClient okHttpClient;
private TextView textView;
private File tempFile;
private File targetFile;
private String path;
private Button button1;
private Button button2;
private Button button3;
private Button button4;
//private long time;

private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static final int FILE_SELECT_CODE = 1;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setTitle("上传文件并显示进度");
//verifyStoragePermissions(MainActivity.this);

textView = (TextView) findViewById(R.id.tv1);
button1 = (Button) findViewById(R.id.btn_choose);
button2 = (Button) findViewById(R.id.btn_upload);
button3 = (Button) findViewById(R.id.btn_download);
button4 = (Button) findViewById(R.id.btn_display);
path = "";

okHttpClient = new OkHttpClient.Builder()
.readTimeout(60, TimeUnit.SECONDS)
.connectTimeout(10, TimeUnit.SECONDS)
.writeTimeout(120, TimeUnit.SECONDS)
.build();

button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showFileChooser();
}
});

button2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startUploadClick();
}
});

button3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startDownloadClick();
}
});

button4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,DisplayActivity.class);
startActivity(intent);
}
});
}

//打开文件选择器
private void showFileChooser() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);

try {
startActivityForResult( Intent.createChooser(intent, "Select a File to Upload"), FILE_SELECT_CODE);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(this, "Please install a File Manager.", Toast.LENGTH_SHORT).show();
}
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case FILE_SELECT_CODE:
if (resultCode == RESULT_OK) {
// Get the Uri of the selected file
Uri uri = data.getData();
path = FileUtils.getPath(this, uri);
}
break;
}
super.onActivityResult(requestCode, resultCode, data);
}

public String getFileName(String pathandname){

int start=pathandname.lastIndexOf("/");
//int end=pathandname.lastIndexOf("");
if(start!=-1 ){
return pathandname.substring(start+1);
}else{
return null;
}

}

//点击按钮开始上传文件
public void startUploadClick() {
//tempFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "test1.txt");
//showFileChooser();
String fileName = "";
tempFile = new File(path);
//tempFile = new File("/data/data/upload/man.jpg");

if (tempFile.getName() == null){
Toast.makeText(MainActivity.this, "找不到该文件!", Toast.LENGTH_SHORT).show();
}
else {
fileName = getFileName(path);
}

RequestBody requestBody = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("file", fileName, RequestBody.create(MediaType.parse("image/jpg"), tempFile))
.build();
//ProgressRequestBody progressRequestBody = new ProgressRequestBody(requestBody, progressListener);
Request request = new Request.Builder()
.url("http://xxx.xxx.xxx.xx/receive_file.php")
.post(requestBody)
.build();
//上面url中的内容请改成自己php文件的所在地址
okHttpClient.newCall(request).enqueue(callback_upload);

}

//点击按钮开始下载文件
public void startDownloadClick() {

targetFile = new File("/data/data/com.example.ywy.mycloud1/cache/" + "test1.jpg");

Request request = new Request.Builder()
.url("http://xxx.xxx.xxx.xx/downloads/woman.jpg")
.build();
okHttpClient.newCall(request).enqueue(callback_download);
//上面url中的内容请改成自己想要下载的文件的所在地址
}

//上传请求后的回调方法
private Callback callback_upload = new Callback() {
@Override
public void onFailure(Call call, IOException e) {
setResult(e.getMessage(), false);
}

@Override
public void onResponse(Call call, Response response) throws IOException {
setResult(response.body().string(), true);
}
};

private Callback callback_download = new Callback() {
@Override
public void onFailure(Call call, IOException e) {
setResult(e.getMessage(),false);
}

@Override
public void onResponse(Call call, Response response) throws IOException {
if(response != null) {
//下载完成，保存数据到文件
//verifyStoragePermissions(MainActivity.this);
InputStream is = response.body().byteStream();
FileOutputStream fos = new FileOutputStream(targetFile);
byte[] buf = new byte[1024];
int hasRead = 0;
while((hasRead = is.read(buf)) > 0) {
fos.write(buf, 0, hasRead);
}
fos.close();
is.close();
setResult("下载成功", true);
}
}
};

//显示请求返回的结果
private void setResult(final String msg, final boolean success) {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (success) {
Toast.makeText(MainActivity.this, "请求成功", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, "请求失败", Toast.LENGTH_SHORT).show();
}
textView.setText(msg);
}
});
}

}
FileUtils.java 用来辅助以获取所选文件的目录

package com.example.ywy.mycloud1;

import android.content.Context;
import android.database.Cursor;
import android.net.Uri;

/**
* Created by YWY on 2016/11/9.
*/
public class FileUtils {

public static String getPath(Context context, Uri uri) {

if ("content".equalsIgnoreCase(uri.getScheme())) {
String[] projection = { "_data" };
Cursor cursor = null;

try {
cursor = context.getContentResolver().query(uri, projection,null, null, null);
int column_index = cursor.getColumnIndexOrThrow("_data");
if (cursor.moveToFirst()) {
return cursor.getString(column_index);
}
} catch (Exception e) {
// Eat it
}
}

else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}

return null;
}
}

DisplayActivity.java 展示下载内容的一个Activity，没什么用

package com.example.ywy.mycloud1;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;

public class DisplayActivity extends AppCompatActivity {

private  ImageView imageView;

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

imageView = (ImageView)findViewById(R.id.iv);
Bitmap bitmap = BitmapFactory.decodeFile("/data/data/com.example.ywy.mycloud1/cache/test1.jpg");
imageView.setImageBitmap(bitmap);

}
}

还有两个布局文件就不贴了，很简单，自己写一下就行，无非是一些Button和TextView。

另外，不要忘了在AndroidManifest文件中添加读写存储以及联网的权限

<uses-permission
Android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.MOUNT_FORMAT_FILESYSTEMS" />

<uses-permission android:name="androd.permission.WRITE_EXTERNAL_STORAGE" />

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />