Android使用OKHTTP解析JSON数据的实例代码

package com.example.asus.networktest;
 
import okhttp3.OkHttpClient;
import okhttp3.Request;
 
public class HttpUtil {
 
  public static void sendOkHttpRequest(final String address, final okhttp3.Callback callback) {
    OkHttpClient client = new OkHttpClient();
    Request request = new Request.Builder()
        .url(address)
        .build();
    client.newCall(request).enqueue(callback);
  }
 
}

package com.example.asus.networktest;
 
public class App {
 
  private String other;
 
  private String u_Name;
 
  private String u_id;
 
  private String u_passWord;
 
  private String u_token;
 
  private String u_userName;
 
  public String getOther() {
    return other;
  }
 
  public void setOther(String other) {
    this.other = other;
  }
 
  public String getU_Name() {
    return u_Name;
  }
 
  public void setU_Name(String u_Name) {
    this.u_Name = u_Name;
  }
 
  public String getU_id() {
    return u_id;
  }
 
  public void setU_id(String u_id) {
    this.u_id = u_id;
  }
 
  public String getU_passWord() {
    return u_passWord;
  }
 
  public void setU_passWord(String u_passWord) {
    this.u_passWord = u_passWord;
  }
 
  public String getU_token() {
    return u_token;
  }
 
  public void setU_token(String u_token) {
    this.u_token = u_token;
  }
 
  public String getU_userName() {
    return u_userName;
  }
 
  public void setU_userName(String u_userName) {
    thisu_userName = u_userName;
  }
}

package com.example.asus.networktest;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
 
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
 
import java.io.IOException;
import java.util.List;
 
import okhttp3.Call;
import okhttp3.Response;
 
public class MainActivity extends AppCompatActivity implements ViewOnClickListener{
 
  String url="解析地址";
  TextView responseText;
 
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button sendRequest = (Button) findViewById(R.id.send_request);
    responseText = (TextView) findViewById(R.id.response_text);
    sendRequest.setOnClickListener(this);
  }
 
  @Override
  public void onClick(View v) {
    //这里点击事件后，点击后调用网络请求sendRequestWithOkHttp方法
    if (v.getId() == R.id.send_request) {
      sendRequestWithOkHttp();
    }
  }
 
  private void sendRequestWithOkHttp() {
    new Thread(new Runnable() {
      @Override
      public void run() {
        //在子线程中执行Http请求，并将最终的请求结果回调到okhttp3.Callback中
        HttpUtil.sendOkHttpRequest(url,new okhttp3.Callback(){
          @Override
          public void onResponse(Call call, Response response) throws IOException {
            //得到服务器返回的具体内容
            String responseData=responsebody()string();
            parseJSONWithGSON(responseData);
            //显示UI界面，调用的showResponse方法
            showResponse(responseData.toString());
          }
          @Override
          public void onFailure(Call call,IOException e){
            //在这里进行异常情况处理
          }
        });
      }
    }).start();
  }
 
  private void parseJSONWithGSON(String jsonData) {
    //使用轻量级的Gson解析得到的json
    Gson gson = new Gson();
    List appList = gson.fromJson(jsonData, new TypeToken>() {}.getType());
    for (App app : appList) {
      //控制台输出结果，便于查看
      Log.d("MainActivity", "other" + app.getOther());
      Log.d("MainActivity", "u_Name" + app.getU_Name());
      Log.d("MainActivity", "u_id" + app.getU_id());
      Log.d("MainActivity", "u_passWord" + app.getU_passWord());
      Log.d("MainActivity", "u_token" + app.getU_token());
    }
  }
  private void showResponse(final String response) {
    //在子线程中更新UI
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        // 在这里进行UI操作，将结果显示到界面上
        responseText.setText(response);
      }
    });
  }
}

// 这里使用Java8的新特性Lambda表达式开启线程
  private void showResponse2(final String response) {
    //在子线程中更新UI
    runOnUiThread(() -> {
        // 在这里进行UI操作，将结果显示到界面上
        responseTextsetText(response);
    });
  }

Button button = (Button)findViewById(R.id.bytton);
button.setOnClickListener(v->{
  // 处理点击事件
});

Button button = (Button)findViewById(R.id.bytton1);
button.setOnClickListener((v)->{
  // 处理点击事件
});