Java小项目之：投票系统！

最新推荐文章于 2022-05-18 12:27:49 发布

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最新推荐文章于 2022-05-18 12:27:49 发布 · 3k 阅读

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文章标签：

#java #servlet #js #django #session

本文介绍了使用Java开发的一个投票系统，代码简单，适合初学者学习。作者分享了项目的实现过程，并鼓励读者关注以获取更多Java学习资源。

Java小项目之：投票系统

今天给大家带来的是java编写的投票小系统，代码简易，适合初学者练手！
代码展示：

package com.tarena.wgh.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;

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

public class PollServlet extends HttpServlet {

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCha