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