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详解springboot springsecuroty中的注销和权限控制问题

作者：从0开始丿　　发布时间：2023-04-05 15:09:51　

标签：springboot,springsecuroty,注销,权限控制

上篇文章给大家介绍了springboot对接第三方微信授权及获取用户的头像和昵称等等

1 账户注销

1.1 在SecurityConfig中加入开启注销功能的代码

src/main/java/com/lv/config/SecurityConfig.java

package com.lv.config;

import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
//AOP : * !
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
//授权
@Override
public void configure(HttpSecurity http) throws Exception {
//首页所有人都可以访问,功能页只有对应的有权限的人才能访问
//请求授权的规则~(链式编程)
http.authorizeRequests()
.antMatchers("/").permitAll()
.antMatchers("/level1/**").hasRole("vip1")
.antMatchers("/level2/**").hasRole("vip2")
.antMatchers("/level3/**").hasRole("vip3");
//没有权限默认会跳转到登录页,需要开启登录页面
http.formLogin();
//注销,开启了注销功能,跳到首页
http.logout().logoutSuccessUrl("/");
//防止跨站工具, get,post
http.csrf().disable();//关闭csrf功能,注销失败可能的原因
}
//认证,springboot 2.1.x 可以直接使用
//密码编码:PasswordEncoder
//在Spring Security 5.0+ 新增了很多加密方法~
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
//这些数据正常应该从数据库中读
auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder())
.withUser("lv").password(new BCryptPasswordEncoder().encode("123456")).roles("vip2","vip3")
.and()
.withUser("root").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1","vip2","vip3")
.withUser("guest").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1");
}

1.2 在index.html 添加注销的按钮

src/main/resources/templates/index.html

<div class="right menu">
<div>
<a class="item" th:href="@{/toLogin}">
<i class="address card icon"></i>登录
</a>
</div>
<div>
<a class="item" th:href="@{/logout}">
<i class="sign-out icon"></i>注销
</a>
</div>
</div>

1.3 启动项目测试

访问登录页面,登录 guest 账户,该账户可以访问 level1的页面

登录成功后,点击 level1的链接,成功跳转到 level 页面,然后点击注销按钮

弹回到首页,再次点击点击 level1 页面

跳转到了登录页面

说明账户注销成功

2 权限控制

2.1 导入springsecurity和thymeleaf的整合依赖

pom.xml

<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity4</artifactId>
<version>3.0.2.RELEASE</version>
</dependency>

2.2 springboot版本降级

pom.xml

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.9.RELEASE</version>
<relativePath/> 
</parent>

必须将springboot的版本降到2.0.9以下,否则 sec:authorize="isAuthenticated()" 不会生效.版本降低后,需要手动导入junit依赖,否则测试类会报错

<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>RELEASE</version>
<scope>test</scope>
</dependency>

2.3 引入约束

在index.html的头文件中添加springsecurity和thymeleaf的整合约束

src/main/resources/templates/index.html

<html xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">

2.4 修改页面代码

主要修改两部分,一部分是登录状态下显示用户名,和注销按钮,未登录显示登录按钮通过 sec:authorize="isAuthenticated()" 实现.另一部分是根据登录用户的权限显示不同的页面菜单,通过 sec:authorize="hasRole('vip1')" 实现.

src/main/resources/templates/index.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>首页</title>

<link href="https://cdn.bootcss.com/semantic-ui/2.4.1/semantic.min.css" rel="stylesheet">
<link th:href="@{/qinjiang/css/qinstyle.css}" rel="stylesheet">
</head>
<body>


<div class="ui container">
<div class="ui segment" id="index-header-nav" th:fragment="nav-menu">
<div class="ui secondary menu">
<a class="item" th:href="@{/index}">首页</a>

<div class="right menu">

<div sec:authorize="!isAuthenticated()">
<a class="item" th:href="@{/toLogin}">
<i class="address card icon"></i>登录
</a>
</div>

<div sec:authorize="isAuthenticated()">
<a class="item">
用户名:<span sec:authentication="name"></span>
</a>
</div>
<div sec:authorize="isAuthenticated()">
<a class="item" th:href="@{/logout}">
<i class="sign-out icon"></i>注销
</a>
</div>
</div>
</div>
</div>
<div class="ui segment" style="text-align: center">
<h3>Spring Security Study by 秦疆</h3>
</div>
<div>
<br>
<div class="ui three column stackable grid">

<div class="column" sec:authorize="hasRole('vip1')">
<div class="ui raised segment">
<div class="ui">
<div class="content">
<h5 class="content">Level 1</h5>
<hr>
<div><a th:href="@{/level1/1}"><i class="bullhorn icon"></i> Level-1-1</a></div>
<div><a th:href="@{/level1/2}"><i class="bullhorn icon"></i> Level-1-2</a></div>
<div><a th:href="@{/level1/3}"><i class="bullhorn icon"></i> Level-1-3</a></div>
</div>
</div>
</div>
</div>
<div class="column" sec:authorize="hasRole('vip2')">
<div class="ui raised segment">
<div class="ui">
<div class="content">
<h5 class="content">Level 2</h5>
<hr>
<div><a th:href="@{/level2/1}"><i class="bullhorn icon"></i> Level-2-1</a></div>
<div><a th:href="@{/level2/2}"><i class="bullhorn icon"></i> Level-2-2</a></div>
<div><a th:href="@{/level2/3}"><i class="bullhorn icon"></i> Level-2-3</a></div>
</div>
</div>
</div>
</div>
<div class="column" sec:authorize="hasRole('vip3')">
<div class="ui raised segment">
<div class="ui">
<div class="content">
<h5 class="content">Level 3</h5>
<hr>
<div><a th:href="@{/level3/1}"><i class="bullhorn icon"></i> Level-3-1</a></div>
<div><a th:href="@{/level3/2}"><i class="bullhorn icon"></i> Level-3-2</a></div>
<div><a th:href="@{/level3/3}"><i class="bullhorn icon"></i> Level-3-3</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<script th:src="@{/qinjiang/js/jquery-3.1.1.min.js}"></script>
<script th:src="@{/qinjiang/js/semantic.min.js}"></script>
</body>
</html>