persistenttest.java

servlet学习代码

package jsp.servlet.chapter7.cookie;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import jsp.servlet.util.ServletUtil;

@SuppressWarnings("serial")
public class PersistentTest extends HttpServlet {
	public void doGet(HttpServletRequest request, 
			HttpServletResponse response) throws IOException{
		
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		Cookie persis = new Cookie("persistent_cookie", "persistent_cookie");
		persis.setMaxAge(120);
		Cookie session = new Cookie("session_cookie", "session_cookie");
		response.addCookie(persis);
		response.addCookie(session);
		
		Cookie[] cookies = request.getCookies();
		
		if(cookies != null){
			for(int i=0; i<cookies.length; i++){
				out.println(cookies[i].getName() + ": " + cookies[i].getValue() + "; " + cookies[i].getMaxAge() + "<br>");
			}
		}
	}
}