4月29日 RIA 周日

package com.www.servlet;


import java.io.IOException;
import java.util.List;

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

import com.www.service.AnimalService;

public class AnimalServlet extends HttpServlet {
    AnimalService service = new AnimalService();
    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");

        String m = request.getParameter("m");

        if(m.equals("list")){
            list(request,response);
        }else if(m.equals("show")){
            show(request,response);
        }
    }

    private void show(HttpServletRequest request, HttpServletResponse response) {
        // TODO Auto-generated method stub
        String id = request.getParameter("id");

        try {
            List list = service.show(id);
            request.setAttribute("list", list);
            request.getRequestDispatcher("upd.jsp").forward(request, response);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    private void list(HttpServletRequest request, HttpServletResponse response) {
        // TODO Auto-generated method stub
        try {
            List list = service.list();
            request.setAttribute("list", list);
            request.getRequestDispatcher("list.jsp").forward(request, response);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">

    <title>My JSP 'upd.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>

  <body>
    <c:forEach var="li" items="${list }">
    id:<input type="hidden" value="${li.id }"><br>
    name:<input type="text" value="${li.name }"><br>
    age:<input type="text" value="${li.age }"><br>
    color:<input type="text" value="${li.color }"><br>
    </c:forEach>
    <input type="button" value="修改">
  </body>
</html>

一点浩然气,千里快哉风

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