十五、从互联网获取图片且保存到指定目录

来源：互联网发布：苹果二手淘宝编辑：程序博客网时间：2024/05/21 09:35

package com.ljq.test;import java.io.File;import java.io.FileOutputStream;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import org.junit.Test;/** * 从互联网获取图片且保存到指定目录里 *  * @author jiqinlin * */public class InternetTest {    @SuppressWarnings("static-access")    @Test    public void getImg() throws Exception {        String urlPath = "http://i0.itc.cn/20101116/62d_67fd2b2a_207d_4de2_a4f9_fb93cc8da492_0.jpg";        URL url = new URL(urlPath);        HttpURLConnection conn = (HttpURLConnection) url.openConnection();        conn.setConnectTimeout(6*1000);  // 注意要设置超时，设置时间不要超过10秒，避免被android系统回收        if (conn.getResponseCode() != 200) throw new RuntimeException("请求url失败");        InputStream inSream = conn.getInputStream();        //把图片保存到项目的根目录        new InternetTest().readAsFile(inSream, new File("sohu.jpg"));     }        public static void readAsFile(InputStream inSream, File file) throws Exception{        FileOutputStream outStream = new FileOutputStream(file);        byte[] buffer = new byte[1024];        int len = -1;        while( (len = inSream.read(buffer)) != -1 ){            outStream.write(buffer, 0, len);        }         outStream.close();        inSream.close();    }}

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