jsp教程 servlet cookie 遍历代码

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

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

public class Cookies extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
IOException {
resp.setContentType("text/html");
req.getSession();
PrintWriter out = resp.getWriter();
Cookie cookies[] = req.getCookies();
out.println("");
out.println("

");
out.println("Servlet Cookie Information");
out.println("");
out.println("");

if ((cookies == null) || (cookies.length == 0)) {
out.println("

No Cookies found

");
} else {

out.println("

Cookies found

");
for (int i = 0; i Cookie c = cookies[i];
out.println(c.getName() + "::" + c.getValue() + "::"
+ c.getComment() + "::" + c.getMaxAge() + "
");
}

out.println("

");
}
out.println("");
out.println("");
out.flush();
}
}