urlclient.java

java socket基础编程实例

   /*
	* Name of the Application     : URLClient.java
	* Development Environment     : Eclipse3.0M8
	* @Version 1.0
	* Describtion 
	* 
	*	1)Provide URL request
	*
	*
	* Creation / Modification History
	*	wsl	19:04 06/29/2004	Creation       
	*
	* Copyright ® 2004 www.cnlab.net
	* All right reserved. 
	*/
package net.cnlab.wsl.testsocket.simple;

import java.io.*;
import java.net.*;

public class URLClient {
	protected URLConnection connection;
	
	public static void main(String[] args) {
		URLClient client = new URLClient();
		String yahoo = client.getDocumentAt("http://www.yahoo.com");
		System.out.println(yahoo);
	}
	
	public String getDocumentAt(String urlString) {
		StringBuffer document = new StringBuffer();
		try {
			URL url = new URL(urlString);
			URLConnection conn = url.openConnection();
			BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
			String line = null;
			while ((line = reader.readLine()) != null)
				document.append(line + "\n");
			reader.close();
		} catch (MalformedURLException e) {
			System.out.println("Unable to connect to URL: " + urlString);
		} catch (IOException e) {
			System.out.println("IOException when connecting to URL: " + urlString);
		}
		return document.toString();
	}
}