利用Servlet技术实现前后端

最新推荐文章于 2022-07-28 10:24:44 发布

小范小范按时吃饭

最新推荐文章于 2022-07-28 10:24:44 发布

阅读量215

点赞数

分类专栏： Servlet 初级运用

本文链接：https://blog.youkuaiyun.com/AKABUGmaker/article/details/101075545

版权

初级运用同时被 2 个专栏收录

19 篇文章

订阅专栏

Servlet

10 篇文章

订阅专栏

本文展示了一个使用Java Servlet从数据库查询并显示联系人列表的例子。通过POST方法处理请求，设置字符编码为UTF-8，从DAO层获取所有联系人信息，并将其以HTML表格形式输出。每行显示联系人的ID、姓名、性别、年龄、籍贯、手机号和邮箱。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

public class ContactServlet extends HttpServlet {
private Dao dao = new Dao();
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding(“utf-8”);
response.setContentType(“text/html;charset=utf-8”);
PrintWriter out = response.getWriter();
List contacts = dao.queryAll();

    out.write("<!DOCTYPE html>");
    out.write("<html lang=\"en\">");
    out.write("<head>");
    out.write("    <meta charset=\"UTF-8\">");
    out.write("    <title>Title</title>");
    out.write("</head>");
    out.write("<body>");
    out.write("");
    out.write("<table>");
    out.write("    <tr>");
    out.write("        <th>编号</th>");
    out.write("        <th>姓名</th>");
    out.write("        <th>性别</th>");
    out.write("        <th>年龄</th>");
    out.write("        <th>籍贯</th>");
    out.write("        <th>手机</th>");
    out.write("        <th>邮箱</th>");
    out.write("    </tr>");

    for (Contact contact : contacts) {
        out.write("    <tr>");
        out.write("        <td>" + contact.getId() + "</td>");
        out.write("        <td>" + contact.getName() + "</td>");
        out.write("        <td>" + (contact.getGender().equals("m")?"男":"女") + "</td>");
        out.write("        <td>" + contact.getBirthday() + "</td>");
        out.write("        <td>" + contact.getBirthplace() + "</td>");
        out.write("        <td>" + contact.getMobile() + "</td>");
        out.write("        <td>" + contact.getEmail() + "</td>");
        out.write("    </tr>");
    }

    out.write("</table>");
    out.write("");
    out.write("</body>");
    out.write("</html>");

}

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

}