Java reads Web page picture path and downloads to local

Java reads Web page picture path and downloads to local

Recently the company needs to crawl some of the data on the Web page, and simply wrote a demo, some of which are pictures that need to be downloaded to the local and

Save the path of the picture to the database, the sample code is as follows:

Package com.cellstrain.icell.util;

Import Java.io.File;
Import Java.io.FileOutputStream;
Import Java.io.InputStream;
Import Java.io.OutputStream;
Import Java.net.URL;
Import java.net.URLConnection;
Import Java.util.Date;


public class Downloadimage {

 /**
*@paramArgs
 *@throwsException
*/
 public static void Main (string[] args)Throws Exception {
 Download"Https://www.mybiosource.com/images/tds/protocol_images/1000000-6999999/MBS2031060_SDS.jpg",E\\Upload\\Sdspage ");
}

 public static string Download (String urlpath,string savepath)Throws Exception {
 Construct URL
URL url =New URL (URLPath);
 Open connection
URLConnection con = url.openconnection ();
 Set request Timeout to 5s
Con.setconnecttimeout (5*1000);
 Input stream
InputStream is = Con.getinputstream ();
 1K of data buffering
 Byte[] bs =New byte[1024];
 Length of data read
 int Len;
 The output file stream
File sf=New File (Savepath);
 if (!sf.exists ()) {
Sf.mkdirs ();
}
 int randomno= (int) (Math.Random () *1000000);
String filename=urlpath.substring (Urlpath.lastindexof ("/")+1,urlpath.length ());Get the name of the server slice
Filename=New Java.text.SimpleDateFormat ("Yyyy-mm-dd-hh-mm-ss"). Format (New Date ()) +randomno+filename;Time + random number prevents duplication
 OutputStream OS = new FileOutputStream (Sf.getpath () + "\\  "+filename); 
 String virtualpath= "/upload/sdspage/" +filename;//the virtual path to the database 
 //start reading 
  while (len = Is.read (BS))! =-1) {
 Os.write (BS, 0, Len); 
} 
 //complete, close all links 
  Os.close (); 
 Is.close (); 
 return virtualpath; 
} 
 
} 
                is tomcat to configure the virtual path Oh, if it is not clear how to configure the virtual path can be viewed http:// www.cnblogs.com/qianzf/p/6781143.html   < Span style= "color: #808080; Font-style:italic ">  
           

Java reads Web page picture path and downloads to local