SpringSecurity
shrio,SpringSecurity:认证,授权(VIP1,vip2…)
- 功能权限
- 访问权限
- 菜单权限
- 拦截器,过滤器:大量的原生代码,冗余
1、pom.xml
<!--Thymeleaf--> <dependency> <groupId>org.thymeleaf</groupId> <artifactId>thymeleaf-spring5</artifactId> </dependency> <dependency> <groupId>org.thymeleaf.extras</groupId> <artifactId>thymeleaf-extras-java8time</artifactId> </dependency>
简介
Spring Security是针对Spring项目的安全框架,也是Spring Boot底层安全模块默认的技术选型,他可以实现强大的Web安全控制,对于安全控制,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!
记住几个类:
- WebSecurityConfigurerAdapter: 自定义Security策略
- AuthenticationManagerBuilder:自定义认证策略
- @EnableWebSecurity: 开启WebSecurity模式 @Enablexxxx 开启某个功能
Spring Security的两个主要目标是“认证”和“授权”(访问控制) .
“认证”(Authentication)
“授权”(Authorization)
这个概念是通用的,而不是只在Spring Security中存在。
1、pom.xml
<!--security--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency>
2、Security的controller
package com.kuang.config; import org.springframework.context.annotation.Configuration; 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.WebSecurityConfigurerAdapter; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; /*权限验证的配置类,要先继承WebSecurityConfigurerAdapter*/ @Configuration public class SecurityConfig extends WebSecurityConfigurerAdapter { //定义访问规则:首页每个人都可以访问,但是功能也只有特定权限的人才能访问 链式编程 //授权 @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() .antMatchers("/").permitAll() .antMatchers("/level1/**").hasRole("vip1") .antMatchers("/level2/**").hasRole("vip2") .antMatchers("/level3/**").hasRole("vip3"); //没有权限默认跳转到登陆页面 /login http.formLogin(); } //认证 /* 密码编码: BCryptPasswordEncoder() 不编码会报下面的错误 * java.lang.IllegalArgumentException: There is no PasswordEncoder mapped for the id "null" * */ @Override protected void configure(AuthenticationManagerBuilder auth) throws Exception { auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder()) .withUser("qin").password(new BCryptPasswordEncoder().encode("111")).roles("vip1","vip2","vip3") .and() .withUser("aaa").password(new BCryptPasswordEncoder().encode("111")).roles("vip1"); } }
3、路径转发的controller
package com.kuang.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; @Controller public class PathController { @GetMapping({"/","index"}) //"/""index"都会去到index.html public String Toindex(){ return "index"; } @GetMapping("/toLogin") public String Tologin(){ return "views/login"; } @GetMapping("/level1/{id}") //@PathVariable获得url的占位符里面的值 public String ToView(@PathVariable("id")int id){ return "views/level1/"+id; } @GetMapping("/level2/{id}") public String ToView2(@PathVariable("id")int id){ return "views/level2/"+id; } @GetMapping("/level3/{id}") public String ToView3(@PathVariable("id")int id){ return "views/level3/"+id; } }
当然也可以在数据库中拿信息
源码分析
没有权限的话会自动转发到/login
//没有权限默认跳转到登陆页面 /login
http.formLogin();
//开启注销
http.logout();
注销及权限控制
<!--thymeleof整合security--> <dependency> <groupId>org.thymeleaf.extras</groupId> <artifactId>thymeleaf-extras-springsecurity5</artifactId> </dependency> xmlns:sec=http://www.thymeleaf.org/extras/spring-security
用spring-security实现用户登录后显示用户角色的信息
1、导入依赖thymeleof整合security
<!--thymeleof整合security--> <dependency> <groupId>org.thymeleaf.extras</groupId> <artifactId>thymeleaf-extras-springsecurity5</artifactId> </dependency>
2、html命名空间
<html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
3、根据用户的登录状态进行判断显示该有的信息
4、根据源码写表单name属性
5、实现有什么权限显示什么样的信息
6、注销logout-404
总结
本片文章就到这里了,希望能够给你带来帮助,也希望您能够多多关注服务器之家的更多内容!
原文链接:https://blog.csdn.net/qq_43430343/article/details/119919586