Android 网络请求HttpClient方式

最新推荐文章于 2024-04-26 17:22:16 发布

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#Android #网络请求

本文介绍如何使用HttpClient在Android应用中发起网络请求。通过配置权限、引入依赖并创建子线程，利用HttpGet对象发送GET请求，获取JSON响应并进行日志记录。

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使用HttpClient方式访问网络

package com.wzq.makeapp;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

/**
 * 1--配置权限
 * 2--配置使用httpclient,在gradle的android标签下配置(  useLibrary 'org.apache.http.legacy')
 * 3--或者导入依赖搜索httpclient
 * 4--开子线程请求网络
 */
public class MainActivity extends AppCompatActivity {
    public String urlString = "http://api.expoon.com/AppNews/getNewsList/type/1/p/1";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Log.e("wzq-json","进入onCreate");

        new Thread(new Runnable() {
            @Override
            public void run() {


                try {

                    //发送请求的对象
                    DefaultHttpClient defaultHttpClient = new DefaultHttpClient();
                    //请求方式
                    HttpGet httpGet = new HttpGet(urlString);
                    //发送请求
                    HttpResponse response = defaultHttpClient.execute(httpGet);
                    int statusCode = response.getStatusLine().getStatusCode();
                    if (statusCode == 200) {
                        HttpEntity entity = response.getEntity();
                        String jsonResult = EntityUtils.toString(entity);
                        Log.e("wzq","statusCode--请求成功json--->:"+jsonResult);

                    }else {
                        Log.e("wzq","statusCode--请求失败:"+statusCode);
                    }


                } catch (IOException e) {
                    e.printStackTrace();
                }


            }
        }).start();


    }
}