什么是springsecurity
官网解释
Spring Security 是一个功能强大且高度可定制的身份验证和访问控制框架。它是保护基于 Spring 的应用程序的事实上的标准。
Spring Security 是一个专注于为 Java 应用程序提供身份验证和授权的框架。与所有 Spring 项目一样，Spring Security 的真正强大之处在于它可以轻松扩展以满足自定义要求
个人理解
SpringSecurity是一个 身份认证+权限控制的框架
权限
- 功能权限
- 访问权限
- 菜单权限
原本权限控制功能是通过 拦截器 和 过滤器 实现的 --》代码冗余
现在可以通过框架实现---》SpringSecurity ，Shiro
我们仅需要引入 spring-boot-starter-security 模块，进行少量的配置，即可实现强大的安全管理！
通用概念
- 认证：如用户名/用户id和密码，检验身份
- 授权：授权发生在系统成功验证您的身份后，最终会授权您访问资源的权限
实战测试
- 引入测试的静态文件和页面
level1\1.html 其他的同理
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>Level-1-1</title>
<!--semantic-ui-->
<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>
<!--主容器-->
<div class="ui container">
<div th:replace="~{index::nav-menu}"></div>
<div class="ui segment" style="text-align: center">
<h3>Level-1-1</h3>
</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>login.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>登录</title>
<!--semantic-ui-->
<link href="https://cdn.bootcss.com/semantic-ui/2.4.1/semantic.min.css" rel="stylesheet">
</head>
<body>
<!--主容器-->
<div class="ui container">
<div class="ui segment">
<div style="text-align: center">
<h1 class="header">登录</h1>
</div>
<div class="ui placeholder segment">
<div class="ui column very relaxed stackable grid">
<div class="column">
<div class="ui form">
<form th:action="@{/login}" method="post">
<div class="field">
<label>Username</label>
<div class="ui left icon input">
<input type="text" placeholder="Username" name="username">
<i class="user icon"></i>
</div>
</div>
<div class="field">
<label>Password</label>
<div class="ui left icon input">
<input type="password" name="password">
<i class="lock icon"></i>
</div>
</div>
<input type="checkbox" name="remember"> 记住我
<input type="submit" class="ui blue submit button"/>
</form>
</div>
</div>
</div>
</div>
<div style="text-align: center">
<div class="ui label">
</i>注册
</div>
<br><br>
<small>blog.kuangstudy.com</small>
</div>
<div class="ui segment" style="text-align: center">
<h3>Spring Security Study by 秦疆</h3>
</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>- pom.xml中导入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>2.1.18.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</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>
- 配置路由controller
@Controller
public class RouterController {
@RequestMapping({"/","/index"})
public String index(){
return "index";
}
@RequestMapping("hello")
@ResponseBody
public String test(){
return "hello";
}
@RequestMapping("/toLogin")
public String toLogin(){
return "views/login";
}
@RequestMapping("/level1/{id}")
public String level1(@PathVariable("id") int id){
return "views/level1/"+id;
}
@RequestMapping("/level2/{id}")
public String level2(@PathVariable("id") int id){
return "views/level2/"+id;
}
@RequestMapping("/level3/{id}")
public String level3(@PathVariable("id") int id){
return "views/level3/"+id;
}
}
- 配置securityConfig文件（继承WebSecurityConfigurerAdapter），配置自己的security策略
public class SecurityConfig extends WebSecurityConfigurerAdapter- 重写父类授权的方法
@Override
protected void configure(HttpSecurity http) throws Exception {
//首页所有人都可以访问 功能页面只有对应有权限的人才能访问
http.authorizeRequests().antMatchers("/").permitAll()
.antMatchers("/level1/**").hasRole("vip1")
.antMatchers("/level2/**").hasRole("vip2")
.antMatchers("/level3/**").hasRole("vip3");
//没有权限会默认到登陆页面 需要开启登陆的页面
http.formLogin()
.usernameParameter("username")
.passwordParameter("password")
.loginPage("/toLogin")
.loginProcessingUrl("/login");
http.csrf().disable();//关闭csrf功能:跨站请求伪造,默认只能通过post方式提交logout请求
//增加一个注销的功能,logoutSuccessurl("/")配置注销后返回首页
http.logout().logoutSuccessUrl("/");
//增加记住我的功能
http.rememberMe().rememberMeParameter("remember");
}- 重写父类认证的方法
//认证
@Override
protected void configure(AuthenticationManagerBuilder auth)throws Exception{
//这些数据正常应该从数据库中取
auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder())
.withUser("zjx").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1","vip2")
.and()
.withUser("root").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1","vip2","vip3");
}
- 为了实现人性化需求，动态显示用户可以使用的内容，引入thymeleaf-extras-springsecurity5依赖
<!-- https://mvnrepository.com/artifact/org.thymeleaf.extras/thymeleaf-extras-springsecurity5 -->
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity5</artifactId>
<version>3.0.4.RELEASE</version>
</dependency>- 修改index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>首页</title>
<!--semantic-ui-->
<link href="https://cdn.bootcss.com/semantic-ui/2.4.1/semantic.min.css" rel="stylesheet">
<link th:href="@{/css/qinstyle.css}" rel="stylesheet">
</head>
<body>
<!--主容器-->
<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 sec:authorize="!isAuthenticated()" class="right menu">
<!--如果未登录-->
<div sec:authorize="!isAuthenticated()">
<a class="item" th:href="@{/toLogin}">
<i class="address card icon"></i> 登录
</a>
</div>
</div>
<!--如果已登录-->
<div sec:authorize="isAuthenticated()">
<a class="item">
<i class="address card icon"></i>
用户名：<span sec:authentication="principal.username"></span>
角色：<span sec:authentication="principal.authorities"></span>
</a>
</div>
<!--如果已登录-->
<div sec:authorize="isAuthenticated()">
<!--登录注销-->
<a class="item" th:href="@{/logout}">
<i class="address card icon"></i>注销
</a>
</div>
</div>
</div>
<div class="ui segment" style="text-align: center">
<h3>Spring Security Study </h3>
</div>
<div>
<br>
<div class="ui three column stackable grid">
<div class="column">
<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">
<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">
<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="@{/js/jquery-3.1.1.min.js}"></script>
<script th:src="@{/js/semantic.min.js}"></script>
</body>
</html>