myservlet.java

j2me简单实例,j2me教程加源码,希望大家喜欢

package com.j2medev.chapter4;

import java.io.*;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.*;
import javax.servlet.http.*;

public class MyServlet extends HttpServlet {
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        //从请求中读取cookie，显示到控制台
        Cookie[] cookies = request.getCookies();
        if(cookies != null){
            for(int i = 0;i<cookies.length;i++){
                System.out.println("[cookie]"+cookies[i].getName()+":"+cookies[i].getValue());
            }
        }
        Cookie cookie = new Cookie("cookieName","cookieValue");
        cookie.setPath("/");
        cookie.setMaxAge(60*60);
        response.addCookie(cookie);
        
        //读取Http header并显示到控制台
        Enumeration headers = request.getHeaderNames();
        Map map = new HashMap();
        while(headers.hasMoreElements()){
            String name = (String)headers.nextElement();
            System.out.println("[header]"+name+":"+request.getHeader(name));
        }
        //读取request中的参数
        String value=request.getParameter("hello");
        System.out.println("[parameter]hello:"+value);
    }
    
     protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    public String getServletInfo() {
        return "Short description";
    }
}