package com.example.demo.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
@Controller
public class HelloController {
@GetMapping("/greeting")
public String greeting(@RequestParam("message")
String message, Model model) {
model.addAttribute("greeting", message);
return "hello";
}
}
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Hello World</title>
</head>
<body>
<p th:text="${greeting}"></p>
</body>
</html>