okhttp模拟get、post请求

现在 build.gradle(Module:app) 文件的 dependencies 节点下添加下面代码(导入okhttp所需要的包)

    implementation 'com.squareup.okhttp3:okhttp:3.5.0'

import android.widget.Toast;

import java.io.IOException;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class OkHttpUtil {

    /**
     * 发送异步GET请求
     */
    private void getAsyncRequest() {
        //创建OkHttpClient对象
        OkHttpClient okhttpClient = new OkHttpClient();
        //创建Request对象
        Request request = new Request.Builder()
                .url("http://22683cf223.imwork.net:27450/test1")//请求的地址,根据需求带参
                .build();
        //创建call对象
        Call call = okhttpClient.newCall(request);
        call.enqueue(new Callback() {
            /**
             * 请求失败后执行
             * @param call
             * @param e
             */
            @Override
            public void onFailure(Call call, IOException e) {
                Toast.makeText(MainActivity.this,"异步get方式请求数据失败！",Toast.LENGTH_LONG).show();
            }

            /**
             * 请求成功后执行
             * @param call
             * @param response
             * @throws IOException
             */
            @Override
            public void onResponse(Call call, Response response) throws IOException {
                final String res = response.body().string();
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(MainActivity.this,"异步get方式请求数据成功！",Toast.LENGTH_LONG).show();
                        System.out.println(res);
                        showRequest(res);

                        Toast.makeText(MainActivity.this,res,Toast.LENGTH_LONG).show();
                    }
                });
            }
        });
    }

    /**
     * 发送同步的get请求
     */
    public void getSyncRequest() {
        new Thread(new Runnable() {
            @Override
            public void run() {
                OkHttpClient okHttpClient = new OkHttpClient();
                Request request = new Request.Builder()
                        .url("http://hibernate.org/orm/releases/5.3/")
                        .build();
                try {
                    Response response = okHttpClient.newCall(request).execute();
                    String responseResult = response.body().string();
                    
                    showRequest(responseResult);
                    
                    
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    /**
     * 发送异步post()请求
     */
    private void postAsynsRequest() {
        OkHttpClient okhttpClient = new OkHttpClient();
        FormBody.Builder formBody = new FormBody.Builder();//创建表单请求体
        formBody.add("usernam", "Thanlon");
        formBody.add("password", "123");
        Request request = new Request.Builder()
                .url("https://www.baidu.com")
                .post(formBody.build())
                .build();
        Call call2 = okhttpClient.newCall(request);
        call2.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Toast.makeText(MainActivity.this,"异步post请求数据失败！",Toast.LENGTH_LONG).show();
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                final String res = response.body().string();
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(MainActivity.this,"post异步请求数据成功！",Toast.LENGTH_LONG).show();
                        showRequest(res);
                    }
                });
            }
        });
    }

    /**
     * 发送同步的post请求
     */
    public void postSyncRequest() {
        new Thread(new Runnable() {
            @Override
            public void run() {
                OkHttpClient okHttpClient = new OkHttpClient();
                FormBody.Builder formBody = new FormBody.Builder();
                formBody.add("username", "Thanlon");
                formBody.add("password", "123");
                Request request = new Request.Builder()
                        .url("https://www.douban.com")
                        .post(formBody.build())
                        .build();
                try {
                    Response response = okHttpClient.newCall(request).execute();
                    String responseResult = response.body().string();
                    showRequest(responseResult);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }
}