Check if a file was modified on the server : URLConnection « Network Protocol « Java

1. Java
2. Network Protocol
3. URLConnection

Check if a file was modified on the server

      
import java.net.URL;
import java.net.URLConnection;

public class Main {
  public static void main(String[] argv) throws Exception {
    URL u = new URL("http://127.0.0.1/test.gif");
    URLConnection uc = u.openConnection();
    uc.setUseCaches(false);
    long timestamp = uc.getLastModified();

  }
}

   
    
    
    
    
    
  

Related examples in the same category

1.	Demonstrate URLConnection.
2.	Call a servlet from a Java command line application
3.	A CGI POST Example
4.	Http authentication header
5.	URLConnection.setRequestProperty
6.	File size from URL
7.	Sending a POST Request Using a URL
8.	Getting Text from a URL
9.	Getting an Image from a URL
10.	Sending a POST Request with Parameters From a Java Class
11.	Downloading a web page using URL and URLConnection classes
12.	Get response header from HTTP request
13.	Read / download webpage content
14.	Read a GIF or CLASS from an URL save it locally
15.	Zip URLConnection
16.	Zip URLStream Handler
17.	Http Parser
18.	Http Constants
19.	Get URLConnection Expiration
20.	Locating files by path or URL
21.	Download from URL
22.	This program demonstrates how to use the URLConnection class for a POST request.
23.	Connects to an URL and displays the response header data and the first 10 lines of the requested data.
24.	Load content from URL to string