OkHttp的get/post同步异步请求

依赖

compile 'com.squareup.okhttp3:okhttp:3.6.0'compile 'com.squareup.okio:okio:1.11.0'

  

 //get同步  public void getTongBu(View view){      new Thread(){          @Override          public void run() {              super.run();              //创建okhttp对象           OkHttpClient okHttpClient=new OkHttpClient();              //创建请求对象              Request request = new Request.Builder()                      .url("https://www.zhaoapi.cn/ad/getAd")                      .build();            //客户端要去调用请求的对象              Call call = okHttpClient.newCall(request);              try {                  //执行  指定同步或者异步                  Response response = call.execute();                  if(response.isSuccessful()){                      Log.d("+++++++++++++++","__-"+response.body().string());                  }              } catch (IOException e) {                  e.printStackTrace();              }          }      }.start();  } //get异步public void getYiBu(View view){    //创建okhttp对象    OkHttpClient okHttpClient = new OkHttpClient();    //创建请求对象    Request request = new Request.Builder()            .url("https://www.zhaoapi.cn/ad/getAd")            .build();    //    Call call = okHttpClient.newCall(request);     //指定call调用的方式    call.enqueue(new Callback() {        @Override        public void onFailure(Call call, IOException e) {            e.printStackTrace();        }        @Override        public void onResponse(Call call, Response response) throws IOException {            if(response.isSuccessful()){                Log.d("===============","__"+response.body().string());                runOnUiThread(new Runnable() {                    @Override                    public void run() {                        Toast.makeText(MainActivity.this,"请求成功！",Toast.LENGTH_SHORT).show();                    }                });            }        }    });}//post异步public void postYiBu(View view){    //创建okhttp对象    OkHttpClient okHttpClient = new OkHttpClient();     //使用参数使用·FromBody请求实体内容    FormBody formBody = new FormBody.Builder()            .add("mobile", "15613567589")            .add("password", "000000")            .build();    //获取post方式的请求对象    Request request = new Request.Builder()            .post(formBody)            .url("https://www.zhaoapi.cn/user/reg")            .build();    Call call=okHttpClient.newCall(request);       call.enqueue(new Callback() {           @Override           public void onFailure(Call call, IOException e) {               e.printStackTrace();           }           @Override           public void onResponse(Call call, Response response) throws IOException {            if(response.isSuccessful()){                Log.d("++++hhhhhhh+++++","--------------"+response.body().string());            }           }       });}

//post上传文件

  /**
     * java.io.FileNotFoundException: /storage/emulated/0/note01.md: open failed: EACCES (Permission denied)
     * 文件未找到的异常....打开失败了....权限拒绝
     *
     * 6.0以后权限是运行时权限...
     * ------------1.把targetSdk版本改到23以下
     * ------------2.http://www.jianshu.com/p/a51593817825 使用运行时权限
     *
     * 图片:改变文件的类型,,,,在换掉一个支持图片上传的地址
     *
     * 多张图片.....循环上传
     *
     * @param view
     */
    public void postShangChuan(View view) {

        //A.检查用户是否已经允许了权限....PackageManager.PERMISSION_GRANTED代表的是用户已经允许

        if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            //B.不允许...的时候,,,请求用户允许这个权限
            // Activity arg0代表当前的activity, @NonNull String[] arg1请求的权限的数组,也就是需要请求允许哪些权限, int arg2请求码
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1001);

        }else {
            //允许...上传文件
            postFile();
        }



    }

    /**
     * C.请求权限的结果....可以获取到用户是否允许了权限
     */
    @TargetApi(23)
    @Override
    public void onRequestPermissionsResult(int requestCode,String[] permissions, int[] grantResults) {

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 1001) {
            //grantResults用户允许权限的返回值....数组里面放的是用户是否允许权限
            //PackageManager.PERMISSION_GRANTED允许权限
            if (grantResults.length>0 && grantResults[0]==PackageManager.PERMISSION_GRANTED) {

                //上传
                postFile();

            }else {
                Toast.makeText(MainActivity.this, "拒绝", Toast.LENGTH_SHORT).show();
            }
        }

    }

    private void postFile() {
        //1.
        OkHttpClient okHttpClient = new OkHttpClient();

        //2.指定文件的类型 image/jpg image/png video/mp4 ...mimeType
        MediaType mediaType = MediaType.parse("text/x-markdown;charset=utf-8");
        //3.指定要上传的文件对象
        File file = new File(Environment.getExternalStorageDirectory(),"note01.md");

        Request request = new Request.Builder()
                //上传文件的时候请求体使用RequestBody.create()获取okhttp3.MediaType contentType 文件的类型,@NotNull java.io.File file上传的文件对象
                .post(RequestBody.create(mediaType, file))
                .url("https://api.github.com/markdown/raw")
                .build();

        //4.
        Call call = okHttpClient.newCall(request);

        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                e.printStackTrace();
            }

            @Override
            public void onResponse(Call call, final Response response) throws IOException {
                if (response.isSuccessful()){

                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            try {
                                Toast.makeText(MainActivity.this,response.body().string(),Toast.LENGTH_SHORT).show();
                            } catch (IOException e) {
                                e.printStackTrace();
                            }
                        }
                    });
                }
            }
        });
    }