Download pictures to a simple instance of the client and server based on the URL _java

1. Save to server

Save from the path to the server on which the project resides.

String imgurl= "";//Picture address
    try {
      //construct URL url url
      = new URL (imgurl);
      Open connection
      urlconnection con = url.openconnection ();
      Input stream
      InputStream is = Con.getinputstream ();
      1K data buffering
      byte[] bs = new byte[1024];
      The length of data read
      int len;
      Output file stream
      outputstream os = new FileOutputStream ("c:\\image.jpg");//save path
      //start read while (
      len = Is.read ( BS))!=-1) {
        os.write (BS, 0, Len);
      }
      Complete, close all links
      os.close ();
      Is.close ();
    } catch (Malformedurlexception e) {
      e.printstacktrace ();
    } catch (FileNotFoundException e) {
      E.printstacktrace ();
    } catch (IOException e) {
      e.printstacktrace ();
    }

2. Save to Local

Saved to local as a browser download.

String Imgurl= "";//url address string fileName = imgurl.substring (Imgurl.lastindexof ('/') + 1);
    Bufferedinputstream is = null;
    Bufferedoutputstream OS = null;
      try {URL url = new URL (imgurl); 
      This.getservletresponse (). setContentType ("application/x-msdownload;"); This.getservletresponse (). SetHeader ("Content-disposition", "attachment; 
      Filename= "+ New String (Filename.getbytes (" Utf-8 ")," iso8859-1 "));      
      This.getservletresponse (). SetHeader ("Content-length", String.valueof (Url.openconnection (). GetContentLength ()));
      is = new Bufferedinputstream (Url.openstream ()); 
      OS = new Bufferedoutputstream (This.getservletresponse (). Getoutputstream ()); 
      byte[] buff = new byte[2048]; 
      int bytesread; 
      while ( -1!= (bytesread = is.read (buff, 0, buff.length))) {os.write (buff, 0, bytesread); 
      } if (is!= null) is.close ();
    if (OS!= null) os.close ();
     catch (Malformedurlexception e) { E.printstacktrace ();
    catch (Unsupportedencodingexception e) {e.printstacktrace ();
    catch (IOException e) {e.printstacktrace (); }

The above is based on the URL to download pictures to the client, server simple example is a small series to share all the content, hope to give you a reference, but also hope that we support the cloud-dwelling community.