如何使用Spring启动来解析thymeleaf-extras-springsecurity标签?

我是第一次使用
Spring Boot创建一个网站.我正在使用测试页面显示一旦用户登录,当用户登录时,屏幕上会出现“Authenticated”字样.

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
<head>
    <meta charset="utf-8"/>
    <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
    <meta name="viewport" content="width=device-width, initial-scale=1"/>
</head>
<body>
<h2>Thymleaf example</h2>
<p sec:authorize="hasRole('ROLE_USER')">
    Authenticated
</p>
</body>
</html>

但是,问题是带有sec:authorize的标签仍然未经编辑和未解析.因此,无论用户是否登录,都会显示Authenticated字.从控制器打印用户的权限确认了这一点.

我的pom.xml文件具有以下依赖项.

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.thymeleaf.extras</groupId>
        <artifactId>thymeleaf-extras-springsecurity4</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    ... dependencies for mysql and jdbc are omitted.

任何帮助表示赞赏.
注意,我使用的是Spring Boot,因此JAVA配置比XML配置更受欢迎.

最佳答案 请尝试在@Configuration(或@SpringBootApplication)类中添加类似以下代码的内容:

@Bean
public SpringTemplateEngine templateEngine(ITemplateResolver templateResolver, SpringSecurityDialect sec) {
    final SpringTemplateEngine templateEngine = new SpringTemplateEngine();
    templateEngine.setTemplateResolver(templateResolver);
    templateEngine.addDialect(sec); // Enable use of "sec"
    return templateEngine;
}

请注意,如果您强制Spring Boot使用Thymeleaf版本3,您还必须强制使用thymeleaf-extras-springsecurity4依赖项的版本3:

<dependency>
    <groupId>org.thymeleaf.extras</groupId>
    <artifactId>thymeleaf-extras-springsecurity4</artifactId>
    <version>3.0.1.RELEASE</version>
</dependency>

另见this related answer.

点赞