thymeleaf 安全方言示例

落日映苍穹つ 2022-11-27 03:08 157阅读 0赞

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### thymeleaf 安全方言示例 ###

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**示例**

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**config 层**

**WebConfig**

@Configuration
    public class WebSecurity extends WebSecurityConfigurerAdapter {
    
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.formLogin().and().authorizeRequests()
                    .antMatchers("/hello").hasRole("user")
                    .antMatchers("/hello2").hasRole("admin")
                    .antMatchers("/**").authenticated();
        }
    
        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.inMemoryAuthentication().passwordEncoder(initPasswordEncoder()).
                    withUser("gtlx").password(initPasswordEncoder().encode("123456")).roles("user")
                    .and()
                    .withUser("hzw").password(initPasswordEncoder().encode("123456")).roles("user","admin");
        }
    
        private PasswordEncoder initPasswordEncoder(){
            return new BCryptPasswordEncoder();
        }
    }

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**controller 层**

**HelloController**

@Controller
    public class HelloController {
    
        @RequestMapping("/hello")
        public String hello(){
            return "index";
        }
    
        @RequestMapping("/hello2")
        public String hello2(){
            return "index";
        }
    }

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**前端页面**

**index.html**

<!DOCTYPE html>
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml"
          xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <style>
        div {
            font-weight: bolder;
        }
    
        a {
            color: aquamarine;
        }
    </style>
    <body>
    <div th:align="center" style="color: coral">
        <div sec:authorize="isAuthenticated()">
            <span th:text="'当前认证用户为：'+${#authentication.name}"></span><br>
            <span th:text="${#authentication.name}+'用户权限为：'+${#authentication.authorities}"></span>
        </div>
        <div th:if="${#authorization.expression('isAuthenticated()')}">
            <span th:text="'当前认证用户：'"></span>
            <span sec:authentication="name"></span><br>
            <span th:text="${#authentication.name}+'用户权限'"></span>
            <span sec:authentication="principal.authorities"></span>
        </div><br>
    
        <div sec:authorize="hasRole('admin')">
            <span th:text="${#authentication.name}+'具有权限：admin'"></span>
            <span th:text="${#authentication.name}+'的权限为：'+${#authentication.authorities}"></span>
        </div>
        <div th:if="${#authorization.expression('hasRole(''admin'')')}">
            <span th:text="${#authentication.name}+'具有权限：admin'"></span>
            <span th:text="${#authentication.name}+'的权限为：'+${#authentication.authorities}"></span>
        </div><br>
    
        <div sec:authorize="hasRole('user') and isAuthenticated()">
            <span th:text="${#authentication.name}+'认证过，且具有权限：user'"></span>
        </div>
        <div th:if="${#authorization.expression('hasRole(''user'') and isAuthenticated()')}">
            <span th:text="${#authentication.name}+'认证过，且具有权限：user'"></span>
        </div><br>
    
        <div th:if="${#authorization.url('/hello2')}">
            <a href="hello2">hello2</a>
        </div>
        <div sec:authorize-url="/hello2">
            <a href="/hello2">hello2</a>
        </div>
    </div>
    </body>
    </html>

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**使用测试**

**localhost:8080/hello**

**认证用户：gtlx**

![20200813164758435.png][]

**认证用户：hzw**

![20200813165206750.png][]

**hzw 具有权限admin、且能访问 /hello2，因而可显示相应内容**

[20200813164758435.png]: /images/20221124/9cb5122604244c80b57545bb0b741231.png
[20200813165206750.png]: /images/20221124/f0bc428df0694fc6bb75f292c7337f57.png