Download pictures to client, server instance according to URL

1. Save to server

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

1String imgurl= "";//Image Address2         Try {3             //construct URL4URL url =NewURL (imgurl);5             //Open Connection6URLConnection con =url.openconnection ();7             //input Stream8InputStream is =Con.getinputstream ();9             //1K of data bufferingTen             byte[] bs =New byte[1024]; One             //length of data read A             intLen; -             //the output file stream -OutputStream OS =NewFileOutputStream ("c:\\image.jpg");//Save Path the             //start reading -              while(len = Is.read (BS))! =-1) { -Os.write (BS, 0, Len); -             } +             //complete, close all links - os.close (); + is.close (); A}Catch(malformedurlexception e) { at e.printstacktrace (); -}Catch(FileNotFoundException e) { - e.printstacktrace (); -}Catch(IOException e) { - e.printstacktrace (); -}

2. Save to Local

Saved locally as a browser download.

1String imgurl= "";//URL address2String fileName = imgurl.substring (Imgurl.lastindexof ('/') + 1);3Bufferedinputstream is =NULL;4Bufferedoutputstream OS =NULL;5         Try {6URL url =NewURL (imgurl);7              This. Getservletresponse (). setContentType ("application/x-msdownload;"); 8              This. Getservletresponse (). SetHeader ("Content-disposition", "attachment; Filename= "+NewString (Filename.getbytes ("Utf-8"), "Iso8859-1")); 9              This. Getservletresponse (). SetHeader ("Content-length", String.valueof (Url.openconnection (). Getcontentlength ())); Tenis =NewBufferedinputstream (Url.openstream ()); OneOS =NewBufferedoutputstream ( This. Getservletresponse (). Getoutputstream ());  A             byte[] Buff =New byte[2048];  -             intBytesread;  -              while( -1! = (bytesread = is.read (buff, 0, Buff.length))) {   theOs.write (Buff, 0, Bytesread);  -             }   -             if(Is! =NULL)   - Is.close ();  +             if(OS! =NULL)   - os.close (); +}Catch(malformedurlexception e) { A e.printstacktrace (); at}Catch(unsupportedencodingexception e) { - e.printstacktrace (); -}Catch(IOException e) { - e.printstacktrace (); -}

Download pictures to client, server instance according to URL