Java-servlet-01

最新推荐文章于 2025-04-14 08:00:00 发布

转载最新推荐文章于 2025-04-14 08:00:00 发布 · 185 阅读

本文介绍了一个简单的用户管理Servlet实现，该实现支持用户的添加、删除和显示操作，并使用了Java Servlet技术。

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package com.qf.servlet;

import java.io.IOException;
import java.util.ArrayList;
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.qf.bean.User;

public class UserManager extends HttpServlet {
private static final long serialVersionUID = 1L;

private List<User> list = new ArrayList<>();

protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub

response.setContentType("text/html;charset=utf-8");

String name = request.getParameter("name");
String age = request.getParameter("age");
String flag = request.getParameter("flag");
String index = request.getParameter("index");

if ("add".equals(flag)) {
User user = new User(name, Integer.parseInt(age));
list.add(user);
flag = "show";

}
if ("delete".equals(flag)) {
list.remove(Integer.parseInt(index));
flag = "show";
}
if ("show".equals(flag)) {
request.setAttribute("list", list);
request.getRequestDispatcher("show.jsp").forward(request, response);
}

}

protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}

}