Android :okhttp+Springmvc文件解析器实现android向服务器上传照片

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.SET_WALLPAPER" />

compile 'com.squareup.okhttp3:okhttp:3.4.1'

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button button=(Button)findViewById(R.id.button  );w
    image=(ImageView) findViewById(R.id.image);
    button.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
        startActivityForResult(intent, 100);
      }
    });
  }

@Override
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
      case 100:
        switch (resultCode) {
          case RESULT_OK:
            Uri uri = data.getData();
            img_src = uri.getPath();//这是本机的图片路径
            ContentResolver cr = this.getContentResolver();
            try {
              Bitmap bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));
            /* 将Bitmap设定到ImageView */
              image.setImageBitmap(bitmap);
              String[] proj = {MediaStore.Images.Media.DATA};
              CursorLoader loader = new CursorLoader(this, uri, proj, null, null, null);
              Cursor cursor = loader.loadInBackground();
              if (cursor != null) {
                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                img_src = cursor.getString(column_index);//图片实际路径
              }
              cursor.close();
              this.uploadImage();
            } catch (FileNotFoundException e) {
              Log.e("cwd", e.getMessage(), e);
            }

            break;
        }
        break;
    }
  }

public void uploadImage() {
     Log.d("cwd","uploadImage");
    new Thread(new Runnable() {
      @Override
      public void run() {
        File file=new File(img_src);
        RequestBody requestBody = new MultipartBody.Builder()
                .setType(MultipartBody.FORM)
          .addFormDataPart("jsonfile", file.getName(),
              RequestBody.create(MediaType.parse("multipart/form-data"), file))//文件
            .build();
         Request request = new Request.Builder()
           .url("http://3i157k1732.qicp.vip/springmvc03/jsonsrc").post(requestBody)
             .build();
        OkHttpClient client=new OkHttpClient();
        client.newCall(request).enqueue(new Callback() {
          @Override
          public void onFailure(Call call, IOException e) {
            Log.d("cwd", "上传失败"+e.getLocalizedMessage());
          }

          @Override
          public void onResponse(Call call, Response response) throws IOException {
            Log.d("cwd","上传成功"+response.body().string());
          }
        });
      }
    }).start();

  }

<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-annotations</artifactId>
 <version>2.10.0</version>
</dependency>

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <property name="maxUploadSize" value="10485760"/>

  </bean>

@RequestMapping(value = "/jsonsrc")
  public String jsonsrc(HttpServletRequest request,@RequestParam("jsonfile") MultipartFile jsonfile) throws IOException {
    System.out.println("jsonsrc");
    String path=request.getSession().getServletContext().getRealPath("/uploads/");
    File file=new File(path);
    if(!file.exists()){
      file.mkdir();
    }
    String filename=jsonfile.getOriginalFilename();
    String uuid= UUID.randomUUID().toString().replace("-","");
    filename=uuid+filename;
    jsonfile.transferTo(new File(path,filename));
    return "succes";
  }