网络请求

package com.bwie.Utils;import android.util.Log;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;/** * Created by Administrator on 2017/11/9. */public class NetWorkUtils {    public String getJsonByHttpUrlConnection(String jsonUrl){        URL url = null;        HttpURLConnection httpURLConnection = null;        String jsonStr = "";        try {            url = new URL(jsonUrl);//创建URL对象，连接JSON_URL对应的服务器            httpURLConnection = (HttpURLConnection) url.openConnection();//打开连接            httpURLConnection.setConnectTimeout(5000);//设置请求时长为5秒            httpURLConnection.setReadTimeout(5000);//设置读取服务器响应数据的时长            int resCode = httpURLConnection.getResponseCode();//得到响应结果码            if(resCode == 200){//表示响应成功，可以获得相应的额结果                //得到响应的结果,,服务器响应的输入流                InputStream inputStream = httpURLConnection.getInputStream();                byte[] buffers = new byte[1024];                int length = 0;                while((length = inputStream.read(buffers)) != -1){//本次循环成立，说明读取到了数据                    jsonStr += new String(buffers,0,length);                }                //循环完毕，读取数据完毕                Log.d("main",jsonStr);            }        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return jsonStr;    }}