java网络资源下载

逃离我推掉我的手 2022-01-26 08:39 224阅读 0赞

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 FileUtils \{

public static void main(String\[\] args) \{  
            //String url = "https://imgsrc.baidu.com/baike/pic/item/dcc451da81cb39db5aacb0c8dc160924aa1830c4.jpg";  
            String url = "https://timgsa.baidu.com/timg?image=&quality=80&size=b9999\_10000&sec=1559036917530&di=3a5863ddba86db1238bc10d7b553cb56&imgtype=0&src=http%3A%2F%2Fattach.bbs.miui.com%2Fforum%2F201505%2F27%2F172736r8qcystlxcil9s9l.jpg";  
            downloadPicture(url);  
        \}  
        //链接url下载图片  
        private static void downloadPicture(String urlList) \{  
            URL url = null;

try \{  
                url = new URL(urlList);  
                DataInputStream dataInputStream = new DataInputStream(url.openStream());  
                String imageName =  "F:/test.jpg";  
                FileOutputStream fileOutputStream = new FileOutputStream(new File(imageName));  
                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();  
            \}  
        \}  
      
\}

简单demo，可根据实际情况修改！