----------------HelloController-------------

package hello.hellospring.contoller;

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("hello")
    public String hello(Model model)
    {
        model.addAttribute("data", "hello!!");
        return "hello";
    }
}







---------hello.html---------------

<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta http-equiv="content-type" content="text/html" charset="UTF-8" />
    <title>Title</title>
</head>
<body>
<p th:text="'안녕하세요'. + ${data}"> 안녕하세요. 손님</p>
</body>
</html>













자꾸

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Fri Jun 24 23:35:08 KST 2022

There was an unexpected error (type=Internal Server Error, status=500).

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Whitelabel Error Page

Whitelabel Error Page