Cara menggunakan Java untuk menulis modul pengundian dalam talian sistem CMS

public class Vote {
    private String title;
    private List<String> options;
    private Map<String, Integer> counters;

    public Vote(String title, List<String> options) {
        this.title = title;
        this.options = options;
        this.counters = new HashMap<>();
        for (String option : options) {
            counters.put(option, 0);
        }
    }

    public String getTitle() {
        return title;
    }

    public List<String> getOptions() {
        return options;
    }

    public void vote(String option) {
        if (counters.containsKey(option)) {
            counters.put(option, counters.get(option) + 1);
        }
    }

    public Map<String, Integer> getCounters() {
        return counters;
    }
}

<!-- vote.html -->
<h1>投票</h1>
<form action="/vote" method="post">
    <h2>投票标题</h2>
    <p>选项 1: <input type="radio" name="option" value="option1"></p>
    <p>选项 2: <input type="radio" name="option" value="option2"></p>
    <!-- 更多选项... -->
    <input type="submit" value="提交">
</form>

@WebServlet("/vote")
public class VoteServlet extends HttpServlet {
    private Vote vote;

    @Override
    public void init() {
        List<String> options = new ArrayList<>();
        options.add("选项1");
        options.add("选项2");
        // 添加更多选项...
        vote = new Vote("投票标题", options);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String option = req.getParameter("option");
        vote.vote(option);
        resp.sendRedirect("/result");
    }
}

@WebServlet("/result")
public class ResultServlet extends HttpServlet {
    private Vote vote;

    @Override
    public void init() {
        List<String> options = new ArrayList<>();
        options.add("选项1");
        options.add("选项2");
        // 添加更多选项...
        vote = new Vote("投票标题", options);
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        Map<String, Integer> counters = vote.getCounters();

        // 构建投票结果页面
        StringBuilder sb = new StringBuilder();
        sb.append("<h1>投票结果</h1>");
        sb.append("<h2>").append(vote.getTitle()).append("</h2>");
        sb.append("<ul>");

        for (String option : counters.keySet()) {
            sb.append("<li>").append(option).append(": ").append(counters.get(option)).append("</li>");
        }

        sb.append("</ul>");

        resp.setContentType("text/html; charset=utf-8");
        resp.getWriter().write(sb.toString());
    }
}

<!-- menu.html -->
<ul>
    <li><a href="/vote">投票</a></li>
    <!-- 其他菜单项... -->
</ul>