42 lines
1.3 KiB
Java
42 lines
1.3 KiB
Java
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package com.demo;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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@WebServlet("/HelloUserServlet2")
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public class HelloUserServlet2 extends HttpServlet {
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private static final long serialVersionUID = 1L;
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@Override
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protected void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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// 获取请求参数
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String userName = request.getParameter("userName");
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if (userName == null || userName.trim().isEmpty()) {
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userName = "Guest";
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}
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// 设置响应内容类型
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response.setContentType("text/html;charset=UTF-8");
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try (PrintWriter out = response.getWriter()) {
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// 输出HTML内容
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out.println("<!DOCTYPE html>");
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out.println("<html>");
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out.println("<head>");
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out.println("<title>Hello User</title>");
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out.println("</head>");
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out.println("<body>");
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out.println("<h3>Hello, " + userName + "</h3>");
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out.println("</body>");
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out.println("</html>");
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}
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}
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}
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