okhttp的Post方式

public class MainActivity extends AppCompatActivity {
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        new Thread(runnable).start();
    }
    Runnable runnable=new Runnable() {
        @Override
        public void run() {
            MediaType mediaType = MediaType.parse("text/x-markdown; charset=utf-8");
            String requestBody = "I am Jdqm.";
            Request request = new Request.Builder()
                    .url("https://api.github.com/markdown/raw")
                    .post(RequestBody.create(mediaType, requestBody))
                    .build();
            OkHttpClient okHttpClient = new OkHttpClient();
            okHttpClient.newCall(request).enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {
                    Log.d("输出:", "onFailure: " + e.getMessage());
                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    Log.d("输出:", response.protocol() + " " +response.code() + " " + response.message());
                    Headers headers = response.headers();
                    for (int i = 0; i < headers.size(); i++) {
                        Log.d("输出:", headers.name(i) + ":" + headers.value(i));
                    }
                    Log.d("输出:", "onResponse: " + response.body().string());
                }
            });
        }
    };
    }