根据安卓第一行代码Okhttp3第一次使用报错

private void sedRwq1() {

new Thread(new Runnable(){

public void run() {

try {

String url ="https://wwww.baidu.com";

    OkHttpClient okHttpClient =new OkHttpClient();

    final Request request =new Request.Builder()

.url(url)

.get()//默认就是GET请求，可以不写

            .build();

    Response response = okHttpClient.newCall(request).execute();

    String responseData  =response.body().string();

    showResponse(responseData);

            }catch (MalformedURLException e) {

e.printStackTrace();

            }catch (IOException e) {

e.printStackTrace();

            }

}

}).start();

}

1.可能报错 No Network Security Config specified, using platform default

替换成这个在Manifest里的application标签加上一条 android:usesCleartextTraffic="true" 就可以了