upload()方法

private void upLoad() {
       // Bitmap bitmap;
      //  Bitmap bmpCompressed;
    //    for (int i = 0; i < list.size() - 1; i++) {
//            bitmap = BitmapFactory.decodeFile(list.get(i));
//            bmpCompressed = Bitmap.createScaledBitmap(bitmap, 640, 480, true);
//            ByteArrayOutputStream bos = new ByteArrayOutputStream();
//            bmpCompressed.compress(Bitmap.CompressFormat.JPEG, 100, bos);
//            byte[] data = bos.toByteArray();
//            Toast.makeText(UserAddMsgActivity.this, "发送成功" + data.toString(), Toast.LENGTH_SHORT).show();

      //  }
        final String url = "http://115.159.217.226/upload.php";
        MultipartBody.Builder mbody = new MultipartBody.Builder().setType(MultipartBody.FORM);
        Bitmap bitmap = null;
        for (int i = 0; i < list.size() - 1; i++) {
            File file = new File(list.get(i));
            String str =   BitmapUtils.compressImageUpload(file.getPath());//得到压缩后的图片的路径
            File compress_file = new File(str);//得到新图片
            mbody.addFormDataPart("image"+i,file.getName(),RequestBody.create(MediaType.parse("application/octet-stream"),compress_file));//将图片加到mbody中(以二进制形式传输)
            BitmapUtils.deleteCacheFile();//清除缓存
        }
        RequestBody requestBody = mbody.build();
        Request request = new Request.Builder()
                .url(url)
                .post(requestBody)
                .build();
        final okhttp3.OkHttpClient.Builder httpBuilder = new OkHttpClient.Builder();
        OkHttpClient okHttpClient  = httpBuilder
                //设置超时
                .connectTimeout(1000, TimeUnit.MINUTES)
                .readTimeout(1000, TimeUnit.MINUTES)
                .writeTimeout(1000, TimeUnit.MINUTES)
                .build();
        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Log.e("aa", "uploadMultiFile() e=" + e);
            }
            public void onResponse(Call call, Response response) throws IOException {
                Log.i("bb", "uploadMultiFile() response=" + response.body().string());
                Intent intent = new Intent(UserAddMsgActivity.this,MainActivity.class);
                startActivity(intent);
            }
        });

    }