SpringBoot原理分析 | 安全框架：Shiro

妖狐艹你老母 2024-04-22 19:01 98阅读 0赞

![在这里插入图片描述][acb8a7e0bf334001af9f95d515c4f452.gif_pic_center]

> [?wei\_shuo的个人主页][wei_shuo]
> 
> ?[wei\_shuo的学习社区][wei_shuo 1]
> 
> ?Hello World ！

--------------------

### Shiro ###

> Shiro是一个安全框架，用于认证、授权和管理应用程序的安全性。它提供了一组易于使用的API和工具，可以帮助您轻松地添加安全性到您的应用程序中；保护应用程序的机密性、完整性和可用性。可以与各种应用程序集成，包括Web应用程序、RESTful服务和基于消息的应用程序等。使用Shiro，您可以轻松地实现身份验证、权限控制、密码加密等功能，以确保您的应用程序得到充分的安全保护；

![在这里插入图片描述][f786d4584fa2484ebef168618d8426eb.png_pic_center]

#### Security 和 Shiro ####

> Spring Security和Shiro都是用于应用程序安全的框架，它们都提供了认证、授权和安全管理等方面的功能，但它们在实现方式和设计哲学上有一些不同。
> 
>  *  来源不同：Spring Security最初是Spring框架的一个子项目，而Shiro是从Apache的一个开源项目而来
>  *  架构不同：Spring Security的设计哲学是将安全性集成到应用程序的架构中，这意味着Spring Security在许多方面都与Spring框架紧密耦合。而Shiro的设计哲学是通过简单的API和注解来实现安全性，使它可以与各种框架和技术集成
>  *  功能不同：尽管Spring Security和Shiro都提供了基本的认证和授权功能，但它们的实现方式和可定制性略有不同。Spring Security具有更多的配置选项和扩展性，而Shiro则更加简单易用，但可能在某些方面缺少灵活性
>  *  社区支持不同：由于Spring Security是Spring框架的一部分，因此它拥有强大的社区支持和生态系统。而Shiro虽然也有不错的社区支持，但在某些方面可能不如Spring Security流行
> 
> 综上所述，选择Spring Security还是Shiro取决于您的具体需求和技术偏好。如果您已经使用了Spring框架，那么Spring Security可能是更好的选择。如果您需要一个更加简单易用的框架，并且需要与各种技术集成，那么Shiro可能更适合您的需求

![在这里插入图片描述][ee497738a92d404bb4882b3586a04ec0.png_pic_center]

> Authentication：保证只有具有权限的用户才能访问系统中的特定资源，比如用户名/密码、敏感资源等。这样可以保护系统的安全性，防止未经授权的用户访问重要信息；
> 
> Authorization：作用在于根据用户提供的身份凭证，生成权限实体，并为之授予相应的权限；
> 
> Session Management：会话管理，Session 管理的作用主要是在网站浏览时保存用户的会话状态，当用户关闭浏览器时自动关闭会话，从而避免数据泄露；
> 
> Cryptography：加密，保护数据的安全性，如密码加密存储到数据库，而不是明文存储；
> 
> Web Support：Web 支持，可以非常容易的集成到 Web 环境；
> 
> Caching：缓存，比如用户登录后，其用户信息、拥有的角色 / 权限不必每次去查，这样可以提高效率；
> 
> Concurrency：shiro 支持多线程应用的并发验证，即如在一个线程中开启另一个线程，能把权限自动传播过去；
> 
> Testing：提供测试支持；
> 
> Run As：允许一个用户假装为另一个用户（如果他们允许）的身份进行访问；
> 
> Remember Me：记住我，通过session缓存数据

![在这里插入图片描述][3711ee96580d4bb38d6855b411e99fd0.png_pic_center]

> Subject（主体） ：Shiro 框架中的一个核心概念获取当前登录的用户名和角色，验证当前用户的权限，提供当前用户信息，包括用户名、角色、权限等信息
> 
> SecurityManager（核心安全管理器）： 是一个安全管理器，主要对账号、权限及身份认证进行设置和管理。它可以对 Spark 的部署模式进行配置，开放指定的权限，没有配置的权限就认为不具备相应的权限，这个安全管理器默认情况下是关闭的，需要手动去开启
> 
> Realm（领域） ： Shiro 框架中用于保护应用程序中的数据安全的一种数据库；当用户执行认证（登录）和授权（访问控制）验证时，Shiro 会从应用配置的 Realm 中查找用户及其权限信息。Realm 实质上是一个安全相关的 DAO，它封装了数据源的连接细节，并在需要时将相关数据提供给 Shiro。当配置 Shiro 时，你必须至少指定一个 Realm，用于认证和（或）授权。配置多个 Realm 是可以的，但是至少需要一个。Shiro 内置了可以连接大量安全数据源（又名目录）的 Realm，如 LDAP、关系数据库(JDBC)、类似 INI 的文本配置资源以及属性文件等。如果缺省的 Realm 不能满足需求，你还可以插入代表自定义数据源的自己的 Realm 实现。Realm 能做的工作主要有以下几个方面：
> 
>  *  身份验证：验证账户和密码，并返回相关信息
>  *  权限获取：获取指定身份的权限，并返回相关信息
>  *  令牌支持：判断该令牌（Token）是否被支持
>  *  令牌有很多种类型，例如：HostAuthenticationToken（主机验证令牌），UsernamePasswordToken（账户密码验证令牌）

#### 准备工作 ####

>  *  依赖导入
> 
>     <dependencies>
>             
>             <dependency>
>                 <groupId>org.apache.shiro</groupId>
>                 <artifactId>shiro-core</artifactId>
>                 <version>1.11.0</version>
>             </dependency>
>             
>             
>             <dependency>
>                 <groupId>org.slf4j</groupId>
>                 <artifactId>jcl-over-slf4j</artifactId>
>                 <version>2.0.7</version>
>             </dependency>
>             
>             <dependency>
>                 <groupId>org.slf4j</groupId>
>                 <artifactId>slf4j-log4j12</artifactId>
>                 <version>2.0.7</version>
>             </dependency>
>             
>             <dependency>
>                 <groupId>log4j</groupId>
>                 <artifactId>log4j</artifactId>
>                 <version>1.2.17</version>
>             </dependency>
>         </dependencies>
> 
>  *  resources/log4j.properties
> 
>     log4j.rootLogger=INFO, stdout
>     
>     log4j.appender.stdout=org.apache.log4j.ConsoleAppender
>     log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
>     log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n
>     
>     # General Apache libraries
>     log4j.logger.org.apache=WARN
>     
>     # Spring
>     log4j.logger.org.springframework=WARN
>     
>     # Default Shiro logging
>     log4j.logger.org.apache.shiro=INFO
>     
>     # Disable verbose logging
>     log4j.logger.org.apache.shiro.util.ThreadContext=WARN
>     log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN
> 
>  *  resources/shiro.ini
> 
>     [users]
>     # user 'root' with password 'secret' and the 'admin' role
>     root = secret, admin
>     # user 'guest' with the password 'guest' and the 'guest' role
>     guest = guest, guest
>     # user 'presidentskroob' with password '12345' ("That's the same combination on
>     # my luggage!!!" ;)), and role 'president'
>     presidentskroob = 12345, president
>     # user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz'
>     darkhelmet = ludicrousspeed, darklord, schwartz
>     # user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz'
>     lonestarr = vespa, goodguy, schwartz
>     
>     [roles]
>     # 'admin' role has all permissions, indicated by the wildcard '*'
>     admin = *
>     # The 'schwartz' role can do anything (*) with any lightsaber:
>     schwartz = lightsaber:*
>     # The 'goodguy' role is allowed to 'drive' (action) the winnebago (type) with
>     # license plate 'eagle5' (instance specific id)
>     goodguy = winnebago:drive:eagle5
> 
>  *  Quickstart.java
> 
>     import org.apache.shiro.SecurityUtils;
>     import org.apache.shiro.authc.*;
>     import org.apache.shiro.config.IniSecurityManagerFactory;
>     import org.apache.shiro.mgt.SecurityManager;
>     import org.apache.shiro.session.Session;
>     import org.apache.shiro.subject.Subject;
>     import org.apache.shiro.util.Factory;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     
>     
>     /**
>      * Simple Quickstart application showing how to use Shiro's API.
>      *
>      * @since 0.9 RC2
>      */
>     public class Quickstart {
>          
>     
>         private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);
>     
>         
>         public static void main(String[] args) {
>          
>     
>             // The easiest way to create a Shiro SecurityManager with configured
>             // realms, users, roles and permissions is to use the simple INI config.
>             // We'll do that by using a factory that can ingest a .ini file and
>             // return a SecurityManager instance:
>     
>             // Use the shiro.ini file at the root of the classpath
>             // (file: and url: prefixes load from files and urls respectively):
>             Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
>             SecurityManager securityManager = factory.getInstance();
>     
>             // for this simple example quickstart, make the SecurityManager
>             // accessible as a JVM singleton.  Most applications wouldn't do this
>             // and instead rely on their container configuration or web.xml for
>             // webapps.  That is outside the scope of this simple quickstart, so
>             // we'll just do the bare minimum so you can continue to get a feel
>             // for things.
>             SecurityUtils.setSecurityManager(securityManager);
>     
>             // Now that a simple Shiro environment is set up, let's see what you can do:
>     
>             // get the currently executing user:
>             Subject currentUser = SecurityUtils.getSubject();
>     
>             // Do some stuff with a Session (no need for a web or EJB container!!!)
>             Session session = currentUser.getSession();
>             session.setAttribute("someKey", "aValue");
>             String value = (String) session.getAttribute("someKey");
>             if (value.equals("aValue")) {
>          
>                 log.info("Retrieved the correct value! [" + value + "]");
>             }
>     
>             // let's login the current user so we can check against roles and permissions:
>             if (!currentUser.isAuthenticated()) {
>          
>                 UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
>                 token.setRememberMe(true);
>                 try {
>          
>                     currentUser.login(token);
>                 } catch (UnknownAccountException uae) {
>          
>                     log.info("There is no user with username of " + token.getPrincipal());
>                 } catch (IncorrectCredentialsException ice) {
>          
>                     log.info("Password for account " + token.getPrincipal() + " was incorrect!");
>                 } catch (LockedAccountException lae) {
>          
>                     log.info("The account for username " + token.getPrincipal() + " is locked.  " +
>                             "Please contact your administrator to unlock it.");
>                 }
>                 // ... catch more exceptions here (maybe custom ones specific to your application?
>                 catch (AuthenticationException ae) {
>          
>                     //unexpected condition?  error?
>                 }
>             }
>     
>             //say who they are:
>             //print their identifying principal (in this case, a username):
>             log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");
>     
>             //test a role:
>             if (currentUser.hasRole("schwartz")) {
>          
>                 log.info("May the Schwartz be with you!");
>             } else {
>          
>                 log.info("Hello, mere mortal.");
>             }
>     
>             //test a typed permission (not instance-level)
>             if (currentUser.isPermitted("lightsaber:wield")) {
>          
>                 log.info("You may use a lightsaber ring.  Use it wisely.");
>             } else {
>          
>                 log.info("Sorry, lightsaber rings are for schwartz masters only.");
>             }
>     
>             //a (very powerful) Instance Level permission:
>             if (currentUser.isPermitted("winnebago:drive:eagle5")) {
>          
>                 log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
>                         "Here are the keys - have fun!");
>             } else {
>          
>                 log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
>             }
>     
>             //all done - log out!
>             currentUser.logout();
>     
>             System.exit(0);
>         }
>     }
> 
> ![在这里插入图片描述][d5ce9678a4cd4d669d637d94f9b62025.png_pic_center]

#### shiro的subject分析 ####

>  *  获取当前用户对象subject
> 
>     Subject currentUser = SecurityUtils.getSubject();
> 
>  *  通过当前用户，取出session
> 
>     Session session = currentUser.getSession();
> 
>  *  判断当前用户是否被认证
> 
>     if (!currentUser.isAuthenticated()) {
>          
>     	……
>     }
> 
>  *  输出Subject信息，或得当前用户认证
> 
>     log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");
> 
>  *  获取用户是否拥有角色，并输出
> 
>     if (currentUser.hasRole("schwartz")) {
>          
>     	……
>     }
> 
>  *  获取当前用户权限
> 
>     if (currentUser.isPermitted("lightsaber:wield")) {
>          
>     	……
>     }
> 
>  *  注销、结束
> 
>     //注销
>             currentUser.logout();
>             //结束
>             System.exit(0);
> 
>     import org.apache.shiro.SecurityUtils;
>     import org.apache.shiro.authc.*;
>     import org.apache.shiro.config.IniSecurityManagerFactory;
>     import org.apache.shiro.mgt.SecurityManager;
>     import org.apache.shiro.session.Session;
>     import org.apache.shiro.subject.Subject;
>     import org.apache.shiro.util.Factory;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     
>     
>     public class Quickstart {
>          
>     
>         private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);
>     
>     
>         public static void main(String[] args) {
>          
>     
>             Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
>             SecurityManager securityManager = factory.getInstance();
>             SecurityUtils.setSecurityManager(securityManager);
>     
>             //获取当前用户对象
>             Subject currentUser = SecurityUtils.getSubject();
>             //通过当前用户，取出session
>             Session session = currentUser.getSession();
>             session.setAttribute("someKey", "aValue");
>             String value = (String) session.getAttribute("someKey");
>             if (value.equals("aValue")) {
>          
>                 log.info("Retrieved the correct value! [" + value + "]");
>             }
>     
>             //判断当前用户是否被认证
>             if (!currentUser.isAuthenticated()) {
>          
>                 UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
>                 //token：令牌
>                 token.setRememberMe(true);
>                 try {
>          
>                     //执行登录操作
>                     currentUser.login(token);
>                     //Subject异常
>                 } catch (UnknownAccountException uae) {
>          
>                     log.info("There is no user with username of " + token.getPrincipal());
>                     //令牌不对应等
>                 } catch (IncorrectCredentialsException ice) {
>          
>                     log.info("Password for account " + token.getPrincipal() + " was incorrect!");
>                     //账号被锁定问题,登陆次数过多
>                 } catch (LockedAccountException lae) {
>          
>                     log.info("The account for username " + token.getPrincipal() + " is locked.  " +
>                             "Please contact your administrator to unlock it.");
>                 }
>                 //其他异常或者大的异常,自定义异常
>                 catch (AuthenticationException ae) {
>          
>                 }
>             }
>     
>             //输出Subject信息，或得当前用户认证
>             log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");
>     
>             //测试角色,如果角色拥有权限,则输出权限信息
>             if (currentUser.hasRole("schwartz")) {
>          
>                 log.info("May the Schwartz be with you!");
>             } else {
>          
>                 log.info("Hello, mere mortal.");
>             }
>     
>             //粗粒度
>             if (currentUser.isPermitted("lightsaber:wield")) {
>          
>                 log.info("You may use a lightsaber ring.  Use it wisely.");
>             } else {
>          
>                 log.info("Sorry, lightsaber rings are for schwartz masters only.");
>             }
>     
>             //细粒度
>             if (currentUser.isPermitted("winnebago:drive:eagle5")) {
>          
>                 log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
>                         "Here are the keys - have fun!");
>             } else {
>          
>                 log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
>             }
>     
>             //注销
>             currentUser.logout();
>             //结束
>             System.exit(0);
>         }
>     }

#### springboot集成shiro ####

>  *  依赖导入
> 
>     <dependencies>
>             
>             <dependency>
>                 <groupId>org.apache.shiro</groupId>
>                 <artifactId>shiro-spring-boot-starter</artifactId>
>                 <version>1.11.0</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>
>         </dependencies>
> 
>  *  Shiro 框架的配置文件（ShiroConfig）
> 
>     package com.wei.config;
>     
>     import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
>     import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
>     import org.springframework.beans.factory.annotation.Qualifier;
>     import org.springframework.context.annotation.Bean;
>     import org.springframework.context.annotation.Configuration;
>     
>     import java.util.LinkedHashMap;
>     import java.util.Map;
>     
>     @Configuration
>     public class ShiroConfig {
>          
>     
>         //ShiroFilterFactoryBean
>         @Bean(name = "shiroFilterFactoryBean")
>         public ShiroFilterFactoryBean shiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
>          
>             ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
>             //设置安全管理器
>             bean.setSecurityManager(defaultWebSecurityManager);
>     
>             //添加shiro的内置过滤器
>             /**
>              * anon:无需认证，即可访问
>              * authc:必须认证，才能访问
>              * user:必须拥有rember me 功能才能使用
>              * perms:必须对某个资源的权限才能访问
>              * role：拥有某个角色权限才能访问
>              * */
>     
>             //登录拦截器
>             Map<String, String> filterMap = new LinkedHashMap<>();
>             //filterMap.put("/user/*","authc");
>             filterMap.put("/user/add","authc");
>             filterMap.put("/user/update","authc");
>             bean.setFilterChainDefinitionMap(filterMap);
>             //设置登录请求
>             bean.setLoginUrl("/toLogin");
>     
>             return bean;
>         }
>     
>         //DefaultWebSecurityManager
>         @Bean(name = "securityManager")
>         public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
>          
>             DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
>             //关联UserRealm
>             securityManager.setRealm(userRealm);
>             return securityManager;
>         }
>     
>         //Realm对象
>         @Bean
>         public UserRealm userRealm(){
>          
>             return new UserRealm();
>         }
>     }
> 
>  *  login.html
> 
>     <!DOCTYPE html>
>     <html lang="en" xmlns:th="http://www.thymeleaf.org">
>     <head>
>         <meta charset="UTF-8">
>         <title>Title</title>
>     </head>
>     <body>
>     
>     <h1>登录</h1>
>     
>     <p th:text="${msg}" style="color: red"></p>
>     
>     <form th:action="@{/login}">
>         <p>用户名：<input type="text" name="username"></p>
>         <p>密码：<input type="text" name="password"></p>
>         <p><input type="submit"></p>
>     </form>
>     
>     </body>
>     </html>
> 
>  *  index.html
> 
>     <!DOCTYPE html>
>     <html lang="en" xmlns:th="http://www.thymeleaf.org">
>     <head>
>         <meta charset="UTF-8">
>         <title>wei_shuo</title>
>     </head>
>     <body>
>     <div>
>         <span><h1>首页</h1></span>
>         <p th:text="${msg}"></p>
>         <hr>
>         <a th:href="@{/user/add}"><h1>add</h1></a>  <a th:href="@{/user/update}"><h1>update</h1></a>
>     </div>
>     </body>
>     </html>
> 
>  *  add.html
> 
>     <!DOCTYPE html>
>     <html lang="en">
>     <head>
>         <meta charset="UTF-8">
>         <title>Title</title>
>     </head>
>     <body>
>     <h1>add User</h1>
>     </body>
>     </html>
> 
>  *  update.html
> 
>     <!DOCTYPE html>
>     <html lang="en">
>     <head>
>         <meta charset="UTF-8">
>         <title>Title</title>
>     </head>
>     <body>
>     <h1>update User</h1>
>     </body>
>     </html>
> 
>  *  MyController.java
> 
>     package com.wei.controller;
>     
>     import org.apache.shiro.SecurityUtils;
>     import org.apache.shiro.authc.IncorrectCredentialsException;
>     import org.apache.shiro.authc.UnknownAccountException;
>     import org.apache.shiro.authc.UsernamePasswordToken;
>     import org.apache.shiro.subject.Subject;
>     import org.springframework.stereotype.Controller;
>     import org.springframework.ui.Model;
>     import org.springframework.web.bind.annotation.RequestMapping;
>     
>     @Controller
>     public class MyController {
>          
>     
>         @RequestMapping({
>          "/", "index"})
>         public String toIndex(Model model) {
>          
>             model.addAttribute("msg", "Hello,Shiro");
>             return "index";
>         }
>     
>         @RequestMapping("/user/add")
>         public String add() {
>          
>             return "user/add.html";
>         }
>     
>         @RequestMapping("/user/update")
>         public String update() {
>          
>             return "user/update.html";
>         }
>     
>         @RequestMapping("/toLogin")
>         public String toLogin() {
>          
>             return "login";
>         }
>     
>         @RequestMapping("/login")
>         public String login(String username, String password, Model model) {
>          
>             //获取当前的用户
>             Subject subject = SecurityUtils.getSubject();
>             //封装用户的登录数据
>             UsernamePasswordToken token = new UsernamePasswordToken(username, password);
>             //执行登录方法，如果无异常则成功
>             try {
>          
>                 subject.login(token);
>                 return "index";
>             } catch (UnknownAccountException e) {
>             //用户名不存在
>                 model.addAttribute("msg", "用户名错误");
>                 return "login";
>             } catch (IncorrectCredentialsException e) {
>             //密码不存在
>                 model.addAttribute("msg", "密码错误");
>                 return "login";
>             }
>     
>         }
>     }
> 
>  *  UserRealm.java（用户认证与授权）
> 
>     package com.wei.config;
>     
>     import org.apache.shiro.SecurityUtils;
>     import org.apache.shiro.authc.*;
>     import org.apache.shiro.authz.AuthorizationInfo;
>     import org.apache.shiro.realm.AuthorizingRealm;
>     import org.apache.shiro.subject.PrincipalCollection;
>     import org.apache.shiro.subject.Subject;
>     
>     //自定义UserRealm
>     public class UserRealm extends AuthorizingRealm {
>          
>     
>         //授权
>         @Override
>         protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
>          
>             System.out.println("执行了=>授权doGetAuthorizationInfo");
>             return null;
>         }
>     
>         //认证
>         @Override
>         protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
>          
>             System.out.println("执行了=>认证doGetAuthorizationInfo");
>             //用户名，密码，数据库
>             String name = "root";
>             String password = "123456";
>             UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
>     
>             //用户认证
>             if (!userToken.getUsername().equals(name)){
>          
>                 return null;    //抛出异常  UnknownAccountException
>             }
>             //密码认证，shiro自动部署
>     
>             return new SimpleAuthenticationInfo("",password,"");
>         }
>     }

#### shiro集成Mybatis ####

>  *  依赖导入
> 
>     <dependencies>
>             
>             <dependency>
>                 <groupId>org.mybatis.spring.boot</groupId>
>                 <artifactId>mybatis-spring-boot-starter</artifactId>
>                 <version>2.3.0</version>
>             </dependency>
>             
>             <dependency>
>                 <groupId>org.projectlombok</groupId>
>                 <artifactId>lombok</artifactId>
>                 <version>1.18.26</version>
>             </dependency>
>             
>             <dependency>
>                 <groupId>mysql</groupId>
>                 <artifactId>mysql-connector-java</artifactId>
>             </dependency>
>             
>             <dependency>
>                 <groupId>log4j</groupId>
>                 <artifactId>log4j</artifactId>
>                 <version>1.2.17</version>
>             </dependency>
>             
>             <dependency>
>                 <groupId>com.alibaba</groupId>
>                 <artifactId>druid</artifactId>
>                 <version>1.2.16</version>
>             </dependency>
>             
>             <dependency>
>                 <groupId>org.apache.shiro</groupId>
>                 <artifactId>shiro-spring-boot-starter</artifactId>
>                 <version>1.11.0</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>
>         </dependencies>
> 
>  *  配置文件application.properties
> 
>     #整合mybatis
>     mybatis.type-aliases-package=com.wei.pojo
>     mybatis.mapper-locations=classpath:mapper/*.xml
> 
>  *  数据库配置application.yml
> 
>     spring:
>       datasource:
>         username: "root"
>         password: "root"
>         url: jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC
>         driver-class-name: com.mysql.cj.jdbc.Driver
>         #切换数据源
>         type: com.alibaba.druid.pool.DruidDataSource
>     
>         #Spring Boot 默认是不注入这些属性值的，需要自己绑定
>         #druid 数据源专有配置
>         initialSize: 5
>         minIdle: 5
>         maxActive: 20
>         maxWait: 60000
>         timeBetweenEvictionRunsMillis: 60000
>         minEvictableIdleTimeMillis: 300000
>         validationQuery: SELECT 1 FROM DUAL
>         testWhileIdle: true
>         testOnBorrow: false
>         testOnReturn: false
>         poolPreparedStatements: true
>         #配置监控统计拦截的filters，stat:监控统计、log4j：日志记录、wall：防御sql注入
>         #如果允许时报错  java.lang.ClassNotFoundException: org.apache.log4j.Priority
>         #则导入 log4j 依赖即可，Maven 地址：https://mvnrepository.com/artifact/log4j/log4j
>         filters: stat,wall,log4j
>         maxPoolPreparedStatementPerConnectionSize: 20
>         useGlobalDataSourceStat: true
>         connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
> 
>  *  /pojo/User.java
> 
>     package com.wei.pojo;
>     
>     import lombok.AllArgsConstructor;
>     import lombok.Data;
>     import lombok.NoArgsConstructor;
>     
>     @Data
>     @AllArgsConstructor
>     @NoArgsConstructor
>     public class User {
>          
>         private int id;
>         private String name;
>         private String pwd;
>     }
> 
>  *  /mapper/UserMapper.java
> 
>     package com.wei.mapper;
>     
>     import com.wei.pojo.User;
>     import org.apache.ibatis.annotations.Mapper;
>     import org.springframework.stereotype.Repository;
>     
>     @Repository
>     @Mapper
>     public interface UserMapper {
>          
>     
>         public User queryUserByName(String name);
>     }
> 
>  *  /resource/mapper/UserMapper.xml
> 
>     <?xml version="1.0" encoding="UTF-8" ?>
>     <!DOCTYPE mapper
>             PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
>             "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
>     <mapper namespace="com.wei.mapper.UserMapper">
>     
>         <select id="queryUserByName" parameterType="String" resultType="User">
>             select * from mybatis.user where name = #{name}
>         </select>
>     
>     </mapper>
> 
>  *  /service/UserService.java
> 
>     package com.wei.service;
>     
>     import com.wei.pojo.User;
>     
>     public interface UserService {
>          
>     
>         public User queryUserByName(String name);
>     }
> 
>  *  /service/UserServiceImpl.java
> 
>     package com.wei;
>     
>     import com.wei.service.UserServiceImpl;
>     import org.junit.jupiter.api.Test;
>     import org.springframework.beans.factory.annotation.Autowired;
>     import org.springframework.boot.test.context.SpringBootTest;
>     
>     @SpringBootTest
>     class Springboot06ShiroApplicationTests {
>          
>     
>         @Autowired
>         UserServiceImpl userService;
>     
>         @Test
>         void contextLoads() {
>          
>             System.out.println(userService.queryUserByName("aaa"));
>         }
>     
>     }
> 
>  *  测试
> 
>     package com.wei;
>     
>     import com.wei.service.UserServiceImpl;
>     import org.junit.jupiter.api.Test;
>     import org.springframework.beans.factory.annotation.Autowired;
>     import org.springframework.boot.test.context.SpringBootTest;
>     
>     @SpringBootTest
>     class Springboot06ShiroApplicationTests {
>          
>     
>         @Autowired
>         UserServiceImpl userService;
>     
>         @Test
>         void contextLoads() {
>          
>             System.out.println(userService.queryUserByName("aaa"));
>         }
>     
>     }
> 
>  *  /config/UserRealm.java
> 
>     package com.wei.config;
>     
>     import com.wei.pojo.User;
>     import com.wei.service.UserService;
>     import org.apache.shiro.authc.*;
>     import org.apache.shiro.authz.AuthorizationInfo;
>     import org.apache.shiro.realm.AuthorizingRealm;
>     import org.apache.shiro.subject.PrincipalCollection;
>     import org.springframework.beans.factory.annotation.Autowired;
>     
>     //自定义UserRealm
>     public class UserRealm extends AuthorizingRealm {
>          
>     
>         @Autowired
>         UserService userService;
>     
>         //授权
>         @Override
>         protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
>          
>             System.out.println("执行了=>授权doGetAuthorizationInfo");
>             return null;
>         }
>     
>         //认证
>         @Override
>         protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
>          
>             System.out.println("执行了=>认证doGetAuthorizationInfo");
>     
>             UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
>             //连接数据库
>             User user = userService.queryUserByName(userToken.getUsername());
>     
>             if (user==null){
>          
>                 return null;       //UnknownAccountException
>             }
>             
>             //密码认证，shiro自动部署
>             //密码加密
>             return new SimpleAuthenticationInfo("",user.getPwd(),"");
>         }
>     }

#### 用户认证与授权 ####

>  *  数据库配置
> 
> ![在这里插入图片描述][9527447728394cc3a78ee8a857e3f113.png_pic_center]

>  *  config/ShiroConfig.java
> 
>     package com.wei.config;
>     
>     import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
>     import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
>     import org.springframework.beans.factory.annotation.Qualifier;
>     import org.springframework.context.annotation.Bean;
>     import org.springframework.context.annotation.Configuration;
>     
>     import java.util.LinkedHashMap;
>     import java.util.Map;
>     
>     @Configuration
>     public class ShiroConfig {
>          
>     
>         //ShiroFilterFactoryBean
>         @Bean("shiroFilterFactoryBean")
>         public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("SecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){
>          
>             ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
>             //设置安全管理器
>             bean.setSecurityManager(defaultWebSecurityManager);
>     
>             //添加shiro的内置过滤器
>             /**
>              * anon:无需认证，即可访问
>              * authc:必须认证，才能访问
>              * user:必须拥有rember me 功能才能使用
>              * perms:必须对某个资源的权限才能访问
>              * role：拥有某个角色权限才能访问
>              * */
>     
>             //登录拦截器
>             Map<String, String> filterMap = new LinkedHashMap<>();
>             //filterMap.put("/user/*","authc");
>             filterMap.put("/user/add","authc");
>             filterMap.put("/user/update","authc");
>             bean.setFilterChainDefinitionMap(filterMap);
>     
>             //授权
>             filterMap.put("/user/add","perms[user:add]");
>             filterMap.put("/user/update","perms[user:update]");
>     
>             //设置登录请求
>             bean.setLoginUrl("/toLogin");
>     
>             //设置未授权的请求
>             bean.setUnauthorizedUrl("/noauth");
>             return bean;
>         }
>     
>         //DefaultWebSecurityManager
>         @Bean("SecurityManager")
>         public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
>          
>             DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
>             //关联UserRealm
>             securityManager.setRealm(userRealm);
>             return securityManager;
>         }
>     
>         //Realm对象
>         @Bean
>         public UserRealm userRealm(){
>          
>             return new UserRealm();
>         }
>     }
> 
> config/UserRealm.java
> 
>     package com.wei.config;
>     
>     import com.wei.pojo.User;
>     import com.wei.service.UserService;
>     import org.apache.shiro.SecurityUtils;
>     import org.apache.shiro.authc.*;
>     import org.apache.shiro.authz.AuthorizationInfo;
>     import org.apache.shiro.authz.SimpleAuthorizationInfo;
>     import org.apache.shiro.realm.AuthorizingRealm;
>     import org.apache.shiro.subject.PrincipalCollection;
>     import org.apache.shiro.subject.Subject;
>     import org.springframework.beans.factory.annotation.Autowired;
>     
>     //自定义UserRealm
>     public class UserRealm extends AuthorizingRealm {
>          
>     
>         @Autowired
>         UserService userService;
>     
>         //授权
>         @Override
>         protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
>          
>             System.out.println("执行了=>授权doGetAuthorizationInfo");
>     
>             //SimpleAuthorizationInfo
>             SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
>     //        info.addStringPermission("user:add");
>     //        info.addStringPermission("user:update");
>     
>             //获取当前用户对象
>             Subject subject = SecurityUtils.getSubject();
>             //获取到了user对象
>             User currentUser = (User) subject.getPrincipal();
>             //设置当前用户权限
>             info.addStringPermission(currentUser.getPerms());
>     
>             return info;
>         }
>      
>         //认证
>         @Override
>         protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
>          
>             System.out.println("执行了=>认证doGetAuthorizationInfo");
>     
>             UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
>             //连接数据库
>             User user = userService.queryUserByName(userToken.getUsername());
>     
>             if (user==null){
>          
>                 return null;       //UnknownAccountException
>             }
>     
>             //密码认证，shiro自动部署
>             //密码加密
>             return new SimpleAuthenticationInfo(user,user.getPwd(),"");
>         }
>     }
> 
>  *  controller/MyController.java
> 
>     package com.wei.controller;
>     
>     import org.apache.shiro.SecurityUtils;
>     import org.apache.shiro.authc.IncorrectCredentialsException;
>     import org.apache.shiro.authc.UnknownAccountException;
>     import org.apache.shiro.authc.UsernamePasswordToken;
>     import org.apache.shiro.subject.Subject;
>     import org.springframework.stereotype.Controller;
>     import org.springframework.ui.Model;
>     import org.springframework.web.bind.annotation.RequestBody;
>     import org.springframework.web.bind.annotation.RequestMapping;
>     import org.springframework.web.bind.annotation.ResponseBody;
>     
>     @Controller
>     public class MyController {
>          
>     
>         @RequestMapping({
>          "/", "index"})
>         public String toIndex(Model model) {
>          
>             model.addAttribute("msg", "Hello,Shiro");
>             return "index";
>         }
>     
>         @RequestMapping("/user/add")
>         public String add() {
>          
>             return "user/add.html";
>         }
>     
>         @RequestMapping("/user/update")
>         public String update() {
>          
>             return "user/update.html";
>         }
>     
>         @RequestMapping("/toLogin")
>         public String toLogin() {
>          
>             return "login";
>         }
>     
>         @RequestMapping("/login")
>         public String login(String username, String password, Model model) {
>          
>             //获取当前的用户
>             Subject subject = SecurityUtils.getSubject();
>             //封装用户的登录数据
>             UsernamePasswordToken token = new UsernamePasswordToken(username, password);
>             //执行登录方法，如果无异常则成功
>             try {
>          
>                 subject.login(token);
>                 return "index";
>             } catch (UnknownAccountException e) {
>             //用户名不存在
>                 model.addAttribute("msg", "用户名错误");
>                 return "login";
>             } catch (IncorrectCredentialsException e) {
>             //密码不存在
>                 model.addAttribute("msg", "密码错误");
>                 return "login";
>             }
>         }
>     
>         //未授权页面
>         @RequestMapping("/noauth")
>         @ResponseBody
>         public String unauthorized(){
>          
>             return "未经授权无法访问此页面！";
>         }
>     }

#### shiro继承Thymeleaf ####

>  *  依赖导入
> 
>     
>             <dependency>
>                 <groupId>com.github.theborakompanioni</groupId>
>                 <artifactId>thymeleaf-extras-shiro</artifactId>
>                 <version>2.1.0</version>
>             </dependency>
> 
>  *  config/ShiroConifg.java
> 
>     //整合ShiroDialect：整合shiro和thymeleaf
>         @Bean
>         public ShiroDialect getShiroDialect(){
>          
>             return new ShiroDialect();
>         }
> 
>  *  config/UserRealm.java
> 
>     //获取当前的用户
>             Subject currentSubject = SecurityUtils.getSubject();
>             Session session = currentSubject.getSession();
>             session.setAttribute("loginUser",user);
> 
>  *  index.html
> 
>     <!DOCTYPE html>
>     <html lang="en"
>           xmlns:th="http://www.thymeleaf.org"
>           xmlns:shiro="http://www.pollix.at/thymeleaf/shiro"
>     >
>     <head>
>         <meta charset="UTF-8">
>         <title>wei_shuo</title>
>     </head>
>     <body>
>     <div>
>         <span><h1>首页</h1></span>
>         <div th:if="${session.loginUser==null}">
>             <p><a th:href="@{/toLogin}">登录</a> </p>
>         </div>
>         <p th:text="${msg}"></p>
>         <hr>
>         <div shiro:hasPermission="'user:add'">
>             <a th:href="@{/user/add}"><h1>add</h1></a>
>         </div>
>         <div shiro:hasPermission="'user:update'">
>          <a th:href="@{/user/update}"><h1>update</h1></a>
>         </div>
>     </div>
>     </body>
>     </html>

--------------------

> ? 结语：创作不易，如果觉得博主的文章赏心悦目，还请——`点赞`?`收藏`⭐️`评论`?

--------------------

![在这里插入图片描述][d3ab6ddb82c2490abc1a7836a1dc557c.gif_pic_center]

[acb8a7e0bf334001af9f95d515c4f452.gif_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/d7000b64e1ed424cbeef010028f06d7a.gif
[wei_shuo]: https://blog.csdn.net/weixin_62765017
[wei_shuo 1]: https://bbs.csdn.net/forums/wei_shuo_study
[f786d4584fa2484ebef168618d8426eb.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/2bef5941e0d9464da8e1c0c9cca39760.png
[ee497738a92d404bb4882b3586a04ec0.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/6bef5eb060064e3fabe4dd90587b40f4.png
[3711ee96580d4bb38d6855b411e99fd0.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/4235e2d54b40460c9eae94e9a38be026.png
[d5ce9678a4cd4d669d637d94f9b62025.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/c70f16fe8b8e43debe652660d0361f27.png
[9527447728394cc3a78ee8a857e3f113.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/f61ba942f0d04325bf3164ff851f5091.png
[d3ab6ddb82c2490abc1a7836a1dc557c.gif_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/6eb6757ed32e42cba4de396fa6ba9fec.gif