java根据图片的url地址下载图片到本地详解编程语言

java根据图片的url地址下载图片到本地

已知图片的url地址，通过java代码下载到本地，直接上代码

package demo; 
 
import java.io.ByteArrayOutputStream; 
import java.io.DataInputStream; 
import java.io.File; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.net.MalformedURLException; 
import java.net.URL; 
 
public class DownloadPicFromURL { 
    public static void main(String[] args) { 
        String url = "http://192.168.1.158/estun_cs/banner_img/head_pic.jpg"; 
        String path="d:/test/pic.jpg"; 
        downloadPicture(url,path); 
    } 
    //链接url下载图片 
    private static void downloadPicture(String urlList,String path) { 
        URL url = null; 
        try { 
            url = new URL(urlList); 
            DataInputStream dataInputStream = new DataInputStream(url.openStream()); 
 
            FileOutputStream fileOutputStream = new FileOutputStream(new File(path)); 
            ByteArrayOutputStream output = new ByteArrayOutputStream(); 
 
            byte[] buffer = new byte[1024]; 
            int length; 
 
            while ((length = dataInputStream.read(buffer)) > 0) { 
                output.write(buffer, 0, length); 
            } 
            fileOutputStream.write(output.toByteArray()); 
            dataInputStream.close(); 
            fileOutputStream.close(); 
        } catch (MalformedURLException e) { 
            e.printStackTrace(); 
        } catch (IOException e) { 
            e.printStackTrace(); 
        } 
    } 
}