Java downloads files from the network URL

Transferred from: http://blog.csdn.net/xb12369/article/details/40543649

/*** Download files from the Web URL *@paramUrlstr *@paramFileName *@paramSavepath *@throwsIOException*/     Public Static voidDownloadfromurl (String urlstr,string filename,string Savepath)throwsioexception{URL url=NewURL (URLSTR); HttpURLConnection Conn=(HttpURLConnection) url.openconnection (); //set the timeout time to 3 secondsConn.setconnecttimeout (3*1000); //prevents the masking program from crawling and returns a 403 errorConn.setrequestproperty ("User-agent", "mozilla/4.0" (compatible; MSIE 5.0; Windows NT; Digext) "); //Get input streamInputStream InputStream =Conn.getinputstream (); //get your own array        byte[] GetData =Readinputstream (InputStream); //File Save locationFile Savedir =NewFile (Savepath); if(!savedir.exists ())        {Savedir.mkdir (); } File File=NewFile (savedir+file.separator+fileName); FileOutputStream Fos=Newfileoutputstream (file);         Fos.write (GetData); if(fos!=NULL) {fos.close (); }        if(inputstream!=NULL) {inputstream.close (); } System.out.println ("Info:" +url+ "Download Success"); }    /*** Get the byte array from the input stream *@paramInputStream *@return     * @throwsIOException*/     Public Static  byte[] Readinputstream (InputStream inputstream)throwsIOException {byte[] buffer =New byte[1024]; intLen = 0; Bytearrayoutputstream Bos=NewBytearrayoutputstream ();  while(len = inputstream.read (buffer))! =-1) {bos.write (buffer,0, Len);          } bos.close (); returnBos.tobytearray (); }       Public Static voidMain (string[] args) {Try{Downloadfromurl ("Http://101.95.48.97:8005/res/upload/interface/apptutorials/manualstypeico/6f83ce8f-0da5-49b3-bac8-fd5fc67d2725.png",                    "Baidu. jpg", "d:/resource/images/diaodiao/country/"); }Catch(Exception e) {//Todo:handle Exception        }    }

Java downloads files from the network URL