网络数据工具类_package com.example.myapplication-优快云博客

本文介绍了一个用于从网络抓取JSON数据及图片的实用工具类。该工具通过发送HTTP请求获取远程服务器上的JSON数据和图片资源，并能正确解析返回的内容。支持设置连接超时时间，确保在网络不稳定的情况下仍能正常工作。

package com.example.myapplication;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;


public class NetWordUtils {
    private static String tag ="NetWordUtils";

    public static String getNetjson(String urlString){
        try {
            URL url=new URL(urlString);
            HttpURLConnection urlconnection= (HttpURLConnection) url.openConnection();
            urlconnection.setRequestMethod("GET");
            urlconnection.setConnectTimeout(8000);
            InputStream inputStream = urlconnection.getInputStream();

            StringBuilder StringBuilder=new StringBuilder();
            BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(inputStream));
            String temp="";
            while ((temp=bufferedReader.readLine())!=null){
                StringBuilder.append(temp);
                temp="";
            }
            String data=StringBuilder.toString();
            return data;
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
          return "";

    }
    public static Bitmap getNetBitmap(String urlstring){

        try {
            URL url=new URL(urlstring);
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            int responseCode = urlConnection.getResponseCode();
            if(responseCode==200){
                InputStream inputStream = urlConnection.getInputStream();
                Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
                return bitmap;
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }


        return null;
    }




}