 <dependencies>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter</artifactId>

        </dependency>



        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

        </dependency>

        <!-- springboot web 依赖-->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <!-- thymeleaf 依赖-->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-thymeleaf</artifactId>

        </dependency>

    </dependencies>

添加完依赖以后，就需要编写对应的Controller跟view了

在resource目录下新建templates文件夹并且在该目录下新建文件index.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

</head>

<body>

    <h1>你好</h1>

    <h1 th:text="${name}">  </h1>

</body>

</html>

在src/main/java/com/yukong/chapter目录下新建IndexController

@Controlle

public class IndexController {



    @GetMapping("/hello")

    public String hello(@RequestParam(defaultValue = "world", required = false) String name, Model model) {

        model.addAttribute("name", name);

        return "index";

    }



}

注意这里使用的是@Controller

然后在src/resource/application.yml配置一下thymeleaf相关配置

server:

  port: 8989

spring:

  thymeleaf:

    # 配置视图路径前缀

    prefix: classpath:/templates/

    # 配置视图路径后缀

    suffix: .html

    mode: html

    # 关闭缓存 修改视图 刷新浏览器就显示 开发阶段务必关闭缓存 (=false)

    cache: false

启动Chapter21Application.java并且访问http://localhost:8989/hello

结果如图：