retrieve Last Modified From URL - Java Network

Java examples for Network:URL Download

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Description

retrieve Last Modified From URL

Demo Code

/*/*from   ww  w.jav  a  2  s  .c o m*/
 * Copyright 2014 astamuse company,Ltd.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import javax.servlet.ServletContext;

public class Main{
    private final static long retrieveLastModifiedFromURL(URL url) {
        try {
            URLConnection con = url.openConnection();
            try {
                return con.getLastModified();
            } catch (Exception ex) {
                return 0L;
            } finally {
                con.getInputStream().close();
            }
        } catch (IOException e) {
            return 0L;
        }
    }
}

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