URL网络下载

作者：@hanyuya
本文为作者原创，转载请注明出处：https://www.cnblogs.com/hanyu-study/p/16488145.html

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URL网络下载

package com.hanyu.lesson04;

import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class URLDown {
    public static void main(String[] args) throws Exception{
        //1.下载地址
        URL url = new URL("URL地址");

        //2.连接到这个资源 HTTP
        HttpURLConnection urlConnection =(HttpURLConnection) url.openConnection();
        InputStream inputStream = urlConnection.getInputStream();
        FileOutputStream fos = new FileOutputStream("保存过来的名字和格式");
        byte[] buffer = new byte[102400];
        int len;
        while((len=inputStream.read(buffer))!=-1){
            fos.write(buffer,0,len);
        }
        fos.close();
        inputStream.close();
        urlConnection.disconnect();
        //断开连接
    }
}

下载成功后会出现在左面的项目目录里!