dependencies {
  ...
  compile 'com.dou361.update:jjdxm-update:1.0.5'
  compile 'com.dou361.download:jjdxm-download:1.0.3'
  ...
}

public class UpdateConfig {
  private static final String TAG = "UpdateConfig";
  private static String checkUrl = "http://192.168.1.11:8080/cmcc/jsoninfo";

  public static void init(Context context) {
    UpdateHelper.init(context);
    UpdateHelper.getInstance()
        .setMethod(RequestType.get)// 可填：请求方式,默认为get请求
        .setCheckUrl(checkUrl)// 必填：数据更新接口，方法有重载带参数的setCheckUrl(checkUrl, params)
        .setDialogLayout(R.layout.custom_update_dialog)//自定义的更新dialog
        .setCheckJsonParser(new ParseData() {// 必填：用于从数据更新接口获取的数据response中。解析出Update实例。以便框架内部处理
          @Override
          public Update parse(String response) {
            Log.d(TAG, "response=" + response);
            //解析json数据
            Gson gson = new Gson();
            UpDateBean upDateBean = gson.fromJson(response, UpDateBean.class);
            UpDateBean.DataBean data = upDateBean.getData();

            Update update = new Update();
            update.setForce(data.isForce());
            update.setApkSize(data.getV_size());
            update.setUpdateContent(data.getUpdate_content());
            update.setUpdateUrl(data.getDownload_url());
            update.setVersionCode(Integer.parseInt(data.getV_code()));
            update.setVersionName(data.getV_name());
            return update;//只能返回Update类型，否则报错，所以我们要把解析的javaBean数据赋值给update,然后将update返回
          }
        });
  }
}

{
  "code": 0,
  "data": {
    "download_url": "http://192.168.1.11:8080/cmcc/demo.apk ",
    "force": false,
    "update_content": "测试更新接口",
    "v_code": 10,
    "v_name": "v1.1",
    "v_sha1": "7db76e18ac92bb29ff0ef012abfe178a78477534",
    "v_size": 12365909
  }
}

dependencies {
  ...
  compile 'com.dou361.update:jjdxm-update:1.0.5'
  compile 'com.dou361.download:jjdxm-download:1.0.3'
  compile 'com.google.code.gson:gson:2.7'
  ...
}

public class UpDateBean {

  /**
   * code : 0
   * data : {"download_url":"http://115.159.45.251/software/feibei_live1.0.0.16070810_zs.apk ","force":false,"update_content":"测试更新接口","v_code":"10","v_name":"v1.0.0.16070810","v_sha1":"7db76e18ac92bb29ff0ef012abfe178a78477534","v_size":12365909}
   */

  private int code;
  /**
   * download_url : http://115.159.45.251/software/feibei_live1.0.0.16070810_zs.apk
   * force : false
   * update_content : 测试更新接口
   * v_code : 10
   * v_name : v1.0.0.16070810
   * v_sha1 : 7db76e18ac92bb29ff0ef012abfe178a78477534
   * v_size : 12365909
   */

  private DataBean data;

  public int getCode() {
    return code;
  }

  public void setCode(int code) {
    this.code = code;
  }

  public DataBean getData() {
    return data;
  }

  public void setData(DataBean data) {
    this.data = data;
  }

  public static class DataBean {
    private String download_url;
    private boolean force;
    private String update_content;
    private String v_code;
    private String v_name;
    private String v_sha1;
    private int v_size;

    public String getDownload_url() {
      return download_url;
    }

    public void setDownload_url(String download_url) {
      this.download_url = download_url;
    }

    public boolean isForce() {
      return force;
    }

    public void setForce(boolean force) {
      this.force = force;
    }

    public String getUpdate_content() {
      return update_content;
    }

    public void setUpdate_content(String update_content) {
      this.update_content = update_content;
    }

    public String getV_code() {
      return v_code;
    }

    public void setV_code(String v_code) {
      this.v_code = v_code;
    }

    public String getV_name() {
      return v_name;
    }

    public void setV_name(String v_name) {
      this.v_name = v_name;
    }

    public String getV_sha1() {
      return v_sha1;
    }

    public void setV_sha1(String v_sha1) {
      this.v_sha1 = v_sha1;
    }

    public int getV_size() {
      return v_size;
    }

    public void setV_size(int v_size) {
      this.v_size = v_size;
    }
  }
}

UpdateConfig.init(this);

UpdateHelper.getInstance()
    .setUpdateType(UpdateType.autoupdate)//自动检查更新
    .setForceListener(new ForceListener() {//强制更新监听，true则退出app
      @Override
      public void onUserCancel(boolean force) {
        if (force) {
          finish();
        }
      }
    })
    .check(MainActivity.this);

// 获取本地版本号
PackageManager packageManager = getPackageManager();
try {
  packageInfo = packageManager.getPackageInfo(getPackageName(), 0);
} catch (NameNotFoundException e) {
  e.printStackTrace();
} finally {
  nativeVversionCode = packageInfo.versionCode;
}

// 获取服务器版本号
HttpUtils http = new HttpUtils();
String url = "http://192.168.8.101:8080/QQ/jsoninfo";
http.send(HttpMethod.POST, url, new RequestCallBack<String>() {

  @Override
  public void onFailure(HttpException exception, String msg) {
    ToastUtil.showShortToast(getBaseContext(), "获取服务器版本失败,请检查网络，\n App5秒后将退出");
    handler.sendEmptyMessageDelayed(123, 5000);
  }

  @Override
  public void onSuccess(ResponseInfo<String> respinseInfo) {
    try {
      JSONObject obj = new JSONObject(respinseInfo.result);
      remoteVersionCode = obj.getInt("versioncode");
      if (remoteVersionCode > nativeVversionCode) {
        ToastUtil.showLongToast(getBaseContext(), "请安装最新的版本");
        downLoadApp();
      } 
    } catch (JSONException e) {
      e.printStackTrace();
    } 
  }
});

private Handler handler = new Handler(){
  public void handleMessage(Message msg) {
    if (msg.what == 123) {
      MainActivity.this.finish();
    }
  };
};

protected void downLoadApp() {
  target = Environment.getExternalStorageDirectory().getAbsolutePath() + "/QQ.apk";
  String url = "http://192.168.8.101:8080/QQ/QQ.apk";
  HttpUtils http = new HttpUtils();
  http.download(url, target, new RequestCallBack<File>() {

    @Override
    public void onFailure(HttpException exception, String msg) {
      ToastUtil.showShortToast(getBaseContext(), "下载失败");
    }

    @Override
    public void onSuccess(ResponseInfo<File> responseInfo) {
      dialog.dismiss();
      ToastUtil.showShortToast(getBaseContext(), "下载成功");
      // 安装apk
      installApk();
    }

    @Override
    public void onLoading(long total, long current, boolean isUploading) {
      super.onLoading(total, current, isUploading);
      initProgressDialog(total,current);
    }
  });
}

protected void installApk() {
  new AlertDialog.Builder(MainActivity.this)
    .setTitle("版本更新")
    .setMessage("最新版本正在更新中...")
    .setCancelable(false)
    .setPositiveButton("确定", new DialogInterface.OnClickListener() {

      @Override
      public void onClick(DialogInterface dialog, int which) {
        //安装app
        Intent intent = new Intent();
        intent.setAction("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        Uri data = Uri.parse("file://" + target);
        intent.setDataAndType(data, "application/vnd.android.package-archive");
        startActivity(intent);
        MainActivity.this.finish();
      }
    })
    .setNegativeButton("退出", new DialogInterface.OnClickListener() {

      @Override
      public void onClick(DialogInterface dialog, int which) {
        MainActivity.this.finish();
      }
    }).show();
}

protected void initProgressDialog(long total, long current) {
    dialog.setTitle("更新app");//设置标题
    dialog.setMessage("版本号： "+ remoteVersionCode);//设置dialog内容
    dialog.setIcon(R.drawable.ic_launcher);//设置图标，与为Title左侧
    dialog.setCancelable(false);//点击空白处不可取消
    dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);// 水平线进度条,STYLE_SPINNER:圆形进度条
    dialog.setMax((int) total);//最大值
    dialog.setProgress((int) current);
    dialog.show();
  }