1.简介
应用程序的两个主要区域
认证（Authentication）:
是建立一个它声明的主体的过程（一个“主体” 一般是指用户，设备或一些可以在你的应用程序中执行动作的其他系统）
证明用户的身份，当用户登录之后，系统来查验用户名和密码，以此来证明你有对应身份，这个过程就是认证。
授权 (Authorization)
指确定一个主体是否允许在你的应用程序执行一个动作的过程。为了抵达需要授权的店，主体的身份已经有认证过程建立
指的是你能够干什么 ，有什么样的访问权限。
主要是几个类：
WebSecurityConfigurerAdapter：自定义Security策略
AuthenticationManagerBuilder：自定义认证策略
@EnableWebSecurity：开启WebSecurity模式
2.使用
引入SpringSecurity；
编写SpringSecurity的配置类；
- 继承
WebSecurityConfigurerAdapter - 在配置类上写上注解 @EnableWebSecurity
控制请求的访问权限：
需要重写方法
-
定制请求的授权规则
-
开启自动配置登录功能 ：如果没有登录，没有权限就会到登录页面
- /login请求来到登录页
- 重定向到/login?error 表示登录失败
- 更多功能
-
开启自动配置的注销功能
http.logout().logoutSuccessUrl("/"); //注销成功之后 ，来到首页- 访问 /logout 表示用户注销，清空session
- 注销成功会返回 /login?logout
- 防止网站攻击
@Override
protected void configure(HttpSecurity http) throws Exception {
//定制请求的授权规则
http.authorizeRequests().antMatchers("/").permitAll()
.antMatchers("/level1/**").hasRole("VIP1")
.antMatchers("/level2/**").hasRole("VIP2")
.antMatchers("/level3/**").hasRole("VIP3");
//开启自动配置登录功能
http.formLogin();
//1、/login请求来到登录页
//2、重定向到/login?error 表示登录失败
//3、更多功能
//4、默认post形式的/login代表处理登录
//5、一旦定制loginPage;name loginPage的post请求就是登录
// 开启自动配置的注销功能
//防止网站攻击
http.csrf().disable();
http.logout();
定义认证规则
-
需要重写 方法， 配置对应的账号密码 以及角色//定义认证规则 @Override protected void configure(AuthenticationManagerBuilder auth) throws Exception { auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder()) .withUser("zhangsan").password(new BCryptPasswordEncoder().encode("123456")).roles("VIP1","VIP2") .and() .withUser("lisi").password(new BCryptPasswordEncoder().encode("123456")).roles("VIP2","VIP3") .and() .withUser("wangwu").password(new BCryptPasswordEncoder().encode("123456")).roles("VIP1","VIP3"); }
3.thymeleaf整合security
pom.xml文件中引入依赖
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity4</artifactId>
<version>3.0.4.RELEASE</version>
</dependency>
引入名称标签
<html lang="en" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
</html>
实现 在用户登录的情况下显示注销，否则不显示
【注意：authorize：授权 isAuthenticated()：在springboot2.0.7版本以上不生效，是否已经认证（用户是否登录）
需要导入 命名空间5版本才生效
】
<!--登录注销-->
<!-- 未登录-->
<div class="right menu">
<div sec:authorize="!isAuthenticated()">
<!--未登录-->
<a class="item" th:href="@{/toLogin}">
<i class="address card icon"></i> 登录
</a>
</div>
<!-- 已登录-->
<div sec:authorize="isAuthenticated()">
<h3>
用户名：<span sec:authentication="name"></span>
角色：<span sec:authentication="principal.authorities"></span>
</h3>
<a class="item" th:href="@{/logout}">
<i class="address card icon"></i> 注销
</a>
</div>
</div>
实现功能：根据不同的角色显示不同的字段
<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>
定制登录页面
//开启自动配置登录功能
http.formLogin().usernameParameter("username").passwordParameter("password").loginPage("/toLogin");
实现记住我功能
// 开启记住我 功能
http.rememberMe().rememberMeParameter("remeber"); //需要对应登录界面的CheckBox 的name值
4.代码
配置类：
package com.king.security.config;
import org.springframework.security.authentication.AuthenticationManager;
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;
@EnableWebSecurity
public class MySecurityConfig extends WebSecurityConfigurerAdapter {
//定义认证规则
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder())
.withUser("zhangsan").password(new BCryptPasswordEncoder().encode("123456")).roles("VIP1","VIP2")
.and()
.withUser("lisi").password(new BCryptPasswordEncoder().encode("123456")).roles("VIP2","VIP3")
.and()
.withUser("wangwu").password(new BCryptPasswordEncoder().encode("123456")).roles("VIP1","VIP3");
}
@Override
protected void configure(HttpSecurity http) throws Exception {
//定制请求的授权规则
http.authorizeRequests().antMatchers("/").permitAll()
.antMatchers("/level1/**").hasRole("VIP1")
.antMatchers("/level2/**").hasRole("VIP2")
.antMatchers("/level3/**").hasRole("VIP3");
//开启自动配置登录功能
http.formLogin().usernameParameter("username").passwordParameter("password").loginPage("/toLogin");
//1、/login请求来到登录页
//2、重定向到/login?error 表示登录失败
//3、更多功能
// 开启自动配置的注销功能
//防止网站攻击
http.csrf().disable();
http.logout().logoutSuccessUrl("/");
// 开启记住我 功能
http.rememberMe().rememberMeParameter("remeber");
// 登录成功之后 将cookie发给浏览器保存，以后登录会带上这个cookie，只要通过验证就可以免登录访问页面
// 点击注销会删除cookie
}
}
controller：
package com.king.security.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class SecurityController {
//首页
@RequestMapping({"/", "/index.html","/index"})
public String index(){
return "index";
}
//登录页
@RequestMapping("/toLogin")
public String loginPage(){
return "views/login";
}
// 页面映射
@RequestMapping("/level1/{path}")
public String level1(@PathVariable("path") String path){
return "views/level1/"+path;
}
@RequestMapping("/level2/{path}")
public String level2(@PathVariable("path") String path){
return "views/level2/"+path;
}
@RequestMapping("/level3/{path}")
public String level3(@PathVariable("path") String path){
return "views/level3/"+path;
}
}
首页：index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity5">
<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="@{/qinjiang/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="@{/}">首页</a>
<!--登录注销-->
<!-- 未登录-->
<div class="right menu">
<div sec:authorize="!isAuthenticated()">
<!--未登录-->
<a class="item" th:href="@{/toLogin}">
<i class="address card icon"></i> 登录
</a>
</div>
<!-- 已登录-->
<div sec:authorize="isAuthenticated()">
<h3>
用户名：<span sec:authentication="name"></span>
角色：<span sec:authentication="principal.authorities"></span>
</h3>
<a class="item" th:href="@{/logout}">
<i class="address card icon"></i> 注销
</a>
</div>
</div>
</div>
</div>
<div class="ui segment" style="text-align: center">
<h3>Spring Security </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>
登录页：
<!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="@{/toLogin}" 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>
<div class="field">
<div class="checkbox">
<label>
<input type="checkbox" name="remeber" id="">记住我 <br>
</label>
</div>
</div>
<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></small>
</div>
<div class="ui segment" style="text-align: center">
<h3></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>
level1/1.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>首页</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>