文章目录
- 零 全部源码地址
- 一 Shiro简介
- 1.1 Shiro功能
- 1.2 Shiro架构(外部视角)
- 1.3 Shiro架构(内部视角)
- 二 Shiro快速入门
- 2.1 演示代码&部分源码解读
- 三 Spring Boot集成Shio
- 3.0 准备操作
- 3.1 整合Shiro
- 3.2 页面拦截实现
- 3.3 登录认证
- 3.4 整合数据库
- 3.5 用户授权操作
- 3.6 Shiro授权
- 3.7 整合thymeleaf
- 3.8 效果展示
零 全部源码地址
- 全部源码
一 Shiro简介
- Apache Shiro 是一个Java 的安全(权限)框架。
- Shiro可以完成,认证,授权,加密,会话管理,Web集成,缓存等。
- Shiro官网
1.1 Shiro功能
功能 | 说明 |
---|---|
Authentication | 身份认证、登录,验证用户是不是拥有相应的身份; |
Authorization | 授权,即权限验证,验证某个已认证的用户是否拥有某个权限,即判断用户能否进行某些操作,如:验证某个用户是否拥有某个角色,或者细粒度的验证某个用户对某个资源是否具有某个权限 |
Session Manager | 会话管理,即用户登录后就是第一次会话,在没有退出之前,它的所有信息都在会话中;会话可以是普通的JavaSE环境,也可以是Web环境; |
Cryptography | 加密,保护数据的安全性,如密码加密存储到数据库中,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,能把权限自动的传播过去 |
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 | 记住登录功能,即一次登录后,下次再来的话不用登录 |
1.2 Shiro架构(外部视角)
-
从应用程序角度来观察如何使用shiro完成工作
-
subject:
- 应用代码直接交互的对象是Subject【Shiro的对外API核心就是Subject】
- 与当前应用交互的任何东西都是Subject,与Subject的所有交互都会委托给SecurityManager
- Subject其实是一个门面,SecurityManageer 才是实际的执行者
-
SecurityManager
- 安全管理器,即所有与安全有关的操作都会与SercurityManager交互,并且它管理着所有的Subject。
- 它是Shiro的核心,它负责与Shiro的其他组件进行交互,它相当于SpringMVC的DispatcherServlet的角色
-
Realm
- Shiro从Realm获取安全数据(如用户,角色,权限)
- SecurityManager 要验证用户身份,需要从Realm 获取相应的用户进行比较,来确定用户的身份是否合法;也需要从Realm得到用户相应的角色、权限,进行验证用户的操作是否能够进行
- 可以把Realm看成DataSource。
1.3 Shiro架构(内部视角)
组件名称 | 说明 |
---|---|
Subject | 任何可以与应用交互的 ‘用户’; |
Security Manager | Shiro的心脏,所有具体的交互都通过Security Manager进行控制,它管理者所有的Subject,且负责进行认证,授权,会话,及缓存的管理。 |
Authenticator | 负责Subject认证,是一个扩展点,可以自定义实现;可以使用认证策略(Authentication Strategy) |
Authorizer | 授权器【访问控制器】用来决定主体是否有权限进行相应的操作【即控制着用户能访问应用中的那些功能】 |
Realm | 可以有一个或者多个的realm,可以认为是安全实体数据源【即用于获取安全实体的,可以用JDBC实现,也可以是内存实现等等,由用户提供;所以一般在应用中都需要实现自己的realm】 |
SessionManager | 管理Session生命周期的组件,而Shiro并不仅仅可以用在Web环境,也可以用在普通的JavaSE环境中 |
CacheManager | 缓存控制器,来管理如用户,角色,权限等缓存的;因为这些数据基本上很少改变,放到缓存中后可以提高访问的性能; |
Cryptography | 密码模块,Shiro 提供了一些常见的加密组件用于密码加密,解密 |
二 Shiro快速入门
2.1 演示代码&部分源码解读
- 官方10分钟快速入门
-
创建一个maven工程删掉不必要的东西
-
根据官方文档,我们来导入Shiro的依赖
<dependencies> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-core</artifactId> <version>1.4.1</version> </dependency> <!-- configure logging --> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>1.7.21</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.21</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> </dependencies>
-
编写Shiro配置
- 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
- 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 with assigned permissions # # Each line conforms to the format defined in the # org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc # ----------------------------------------------------------------------------- [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
-
编写QuickStrat
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) { Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini"); SecurityManager securityManager = factory.getInstance(); //设置单例模式 SecurityUtils.setSecurityManager(securityManager); /* 以下是核心代码 */ // 获取当前的对象 subject Subject currentUser = SecurityUtils.getSubject(); // 通过当前对象拿到 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 + "]"); } // 判断当前的用户是否被认证 if (!currentUser.isAuthenticated()) { //token令牌 没有获取,随机 UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa"); token.setRememberMe(true);//设置记住功能 try { currentUser.login(token);//执行登录操作~ } catch (UnknownAccountException uae) {//用户名不存在 log.info("There is no user with username of " + token.getPrincipal()); } catch (IncorrectCredentialsException ice) {//密码错误 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): //获取当前用户的认证码——存取信息 log.info("User [" + currentUser.getPrincipal() + "] logged in successfully."); //test a role:检测角色 if (currentUser.hasRole("schwartz")) { log.info("May the Schwartz be with you!"); } else { log.info("Hello, mere mortal."); } //粗粒度 //test a typed permission (not instance-level):检测权限 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 //a (very powerful) Instance Level permission:是否拥有更高级的权限 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!退出 currentUser.logout(); // 结束 System.exit(0); } }
-
测试结果
2023-01-27 17:35:00,334 INFO [org.apache.shiro.session.mgt.AbstractValidatingSessionManager] - Enabling session validation scheduler... 2023-01-27 17:35:00,712 INFO [Quickstart] - Retrieved the correct value! [aValue] 2023-01-27 17:35:00,713 INFO [Quickstart] - User [lonestarr] logged in successfully. 2023-01-27 17:35:00,713 INFO [Quickstart] - May the Schwartz be with you! 2023-01-27 17:35:00,713 INFO [Quickstart] - You may use a lightsaber ring. Use it wisely. 2023-01-27 17:35:00,714 INFO [Quickstart] - You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'. Here are the keys - have fun! 进程已结束,退出代码0
三 Spring Boot集成Shio
3.0 准备操作
-
搭建一个SpringBoot项目、选中web模块
-
导入Maven依赖 thymeleaf
<!--thymeleaf模板--> <dependency> <groupId>org.thymeleaf</groupId> <artifactId>thymeleaf-spring5</artifactId> </dependency> <dependency> <groupId>org.thymeleaf.extras</groupId> <artifactId>thymeleaf-extras-java8time</artifactId> </dependency>
-
编写一个页面 index.html
<!DOCTYPE html> <html lang="en"xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>首页</h1> <p th:text="${msg}"></p> </body> </html>
-
编写controller进行访问测试
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"; } }
3.1 整合Shiro
-
导入Shiro 和 spring整合的依赖
<!-- subject -用户 SecurityManager - 管理所有用户 realm -连接数据 --> <!--shiro-spring--> <!-- https://mvnrepository.com/artifact/org.apache.shiro/shiro-spring --> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.9.1</version> </dependency>
-
编写Shiro 配置类 【config包下】
import org.springframework.context.annotation.Configuration; //声明为配置类 @Configuration public class ShiroConfig { //创建 ShiroFilterFactoryBean //创建 DefaultWebSecurityManager //创建 realm 对象 }
-
先创建一个 realm 对象
- 需要自定义一个 realm 的类,用来编写一些查询的方法,或者认证与授权的逻辑
import org.apache.shiro.authc.AuthenticationException; import org.apache.shiro.authc.AuthenticationInfo; import org.apache.shiro.authc.AuthenticationToken; import org.apache.shiro.authz.AuthorizationInfo; import org.apache.shiro.realm.AuthorizingRealm; import org.apache.shiro.subject.PrincipalCollection; //自定义Realm public class UserRealm extends AuthorizingRealm { //执行授权逻辑 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { System.out.println("执行了=>授权逻辑PrincipalCollection"); return null; } //执行认证逻辑 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException { System.out.println("执行了=>认证逻辑AuthenticationToken"); return null; } }
-
将这个类注册到Bean中【ShiroConfig中】
@Configuration public class ShiroConfig { //创建 ShiroFilterFactoryBean //创建 DefaultWebSecurityManager //创建 realm 对象 @Bean public UserRealm userRealm(){ return new UserRealm(); } }
-
创建
DefaultWebSecurityManager
//创建 ShiroFilterFactoryBean @Bean public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager")DefaultWebSecurityManager securityManager){ ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean(); //设置安全管理器 shiroFilterFactoryBean.setSecurityManager(securityManager); return shiroFilterFactoryBean; }
-
ShiroConfig
全部代码//声明为配置类 @Configuration public class ShiroConfig { //创建 ShiroFilterFactoryBean @Bean public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager")DefaultWebSecurityManager securityManager){ ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean(); //设置安全管理器 shiroFilterFactoryBean.setSecurityManager(securityManager); return shiroFilterFactoryBean; } //创建 DefaultWebSecurityManager @Bean(name = "securityManager") public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm")UserRealm userRealm){ DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager(); //关联Realm securityManager.setRealm(userRealm); return securityManager; } //创建 realm 对象 @Bean public UserRealm userRealm(){ return new UserRealm(); } }
3.2 页面拦截实现
-
编写两个页面、在templates目录下新建一个 user 目录
add.html update.html
<body> <h1>add</h1> </body>
<body> <h1>update</h1> </body>
-
编写跳转到页面的controller
@RequestMapping("/user/add") public String toAdd(){ return "user/add"; } @RequestMapping("/user/update") public String toUpdate(){ return "user/update"; }
-
在index页面上,增加跳转链接
<a th:href="@{/user/add}">add</a> <hr/> <a th:href="@{/user/update}">update</a>
-
添加Shiro的内置过滤器
@Bean public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager")DefaultWebSecurityManager securityManager){ ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean(); //设置安全管理器 shiroFilterFactoryBean.setSecurityManager(securityManager); /* 添加Shiro内置过滤器,常用的有如下过滤器: anon: 无需认证就可以访问 authc: 必须认证才可以访问 user: 如果使用了记住我功能就可以直接访问 perms: 拥有某个资源权限才可以访问 role: 拥有某个角色权限才可以访问 */ Map<String,String> filterMap = new LinkedHashMap<String, String>(); filterMap.put("/user/add","authc"); filterMap.put("/user/update","authc"); shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap); return shiroFilterFactoryBean; }
-
编写自定义Login页面
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>login</title> </head> <body> <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> <button type="submit">登录</button> </p> </form> </body> </html>
-
编写跳转的controller
@RequestMapping("/toLogin") public String toLogin(){ return "login"; }
-
在shiro中配置
//shiroFilterFactoryBean @Bean 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:无需认证既可以访问 author:必须认证了才能访问 user:必须拥有 记住我 功能才能用 perms:拥有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 //filterMap.put("/user/add","authc"); // filterMap.put("/user/update","authc"); */ filterMap.put("/user/*","authc"); bean.setFilterChainDefinitionMap(filterMap); //设置登录的页面 bean.setLoginUrl("/toLogin"); return bean; }
3.3 登录认证
-
编写一个登录的controller
//登录操作 @RequestMapping("/login") public String login(String username,String password,Model model){ //使用shiro,编写认证操作 //1. 获取Subject Subject subject = SecurityUtils.getSubject(); //2. 封装用户的数据 UsernamePasswordToken token = new UsernamePasswordToken(username,password); //3. 执行登录的方法,只要没有异常就代表登录成功! try { subject.login(token); //登录成功!返回首页 return "index"; } catch (UnknownAccountException e) { //用户名不存在 model.addAttribute("msg","用户名不存在"); return "login"; } catch (IncorrectCredentialsException e) { //密码错误 model.addAttribute("msg","密码错误"); return "login"; } }
-
在前端修改对应的信息输出或者请求
- 登录页面增加一个 msg
<p style="color:red;" th:text="${msg}"></p>
- 给表单增加一个提交地址
<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>
-
在 UserRealm 中编写用户认证的判断逻辑
//执行认证逻辑 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationTokentoken) throws AuthenticationException { System.out.println("执行了=>认证逻辑AuthenticationToken"); //假设数据库的用户名和密码 String name = "root"; String password = "123456"; //1.判断用户名 UsernamePasswordToken userToken = (UsernamePasswordToken)token; if (!userToken.getUsername().equals(name)){ //用户名不存在 return null; //shiro底层就会抛出 UnknownAccountException } //2. 验证密码,我们可以使用一个AuthenticationInfo实现类 SimpleAuthenticationInfo // shiro会自动帮我们验证!重点是第二个参数就是要验证的密码! return new SimpleAuthenticationInfo("", password, ""); }
3.4 整合数据库
-
导入Mybatis相关依赖
<!--mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.2.13-SNSAPSHOT</version> </dependency>
-
编写配置文件-连接配置 application.yml
spring: datasource: username: root password: xxxx url: jdbc:mysql://localhost:3306/mybatis?useSSL=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC driver-class-name: com.mysql.cj.jdbc.Driver 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
-
编写mybatis的配置
#别名配置 mybatis.type-aliases-package=com.yang.pojo mybatis.mapper-locations=classpath:mapper/*.xml
-
编写实体类,引入Lombok
<dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency>
import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import org.apache.ibatis.type.Alias; /** * @author 缘友一世 * date 2022/9/17-9:43 */ @Data @NoArgsConstructor @AllArgsConstructor @Alias("User") public class User { private int id; private String name; private String pwd; private String perms; }
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编写Mapper接口
import com.yang.pojo.User; import org.apache.ibatis.annotations.Mapper; import org.springframework.stereotype.Repository; /** * @author 缘友一世 * date 2022/9/17-9:44 */ @Repository @Mapper public interface UserMapper { public User queryUserByName(String name); }
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编写Mapper配置文件
<?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.yang.mapper.UserMapper"> <select id="queryUserByName" parameterType="String" resultType="User"> select * from user where name = #{name} </select> </mapper>
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编写UserService 层
import com.yang.pojo.User; /** * @author 缘友一世 * date 2022/9/17-9:49 */ public interface UserService { public User queryUserByName(String name); }
import com.yang.mapper.UserMapper; import com.yang.pojo.User; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; /** * @author 缘友一世 * date 2022/9/17-9:51 */ @Service public class UserServiceImpl implements UserService{ @Autowired UserMapper userMapper; @Override public User queryUserByName(String name) { return userMapper.queryUserByName(name); } }
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测试
import com.yang.service.UserService; import com.yang.service.UserServiceImpl; import org.junit.jupiter.api.Test; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; @SpringBootTest class ShiroSpringbootApplicationTests { @Autowired UserServiceImpl userService; @Test void contextLoads() { System.out.println(userService.queryUserByName("小明")); } }
-
改造UserRealm
- 连接到数据库进行真实的操作
import com.yang.pojo.User; import com.yang.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.session.Session; import org.apache.shiro.subject.PrincipalCollection; import org.apache.shiro.subject.Subject; import org.springframework.beans.factory.annotation.Autowired; /** * @author 缘友一世 * date 2022/9/16-21:08 */ //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"); //给资源进行授权 SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); //添加资源的授权字符串 //info.addStringPermission("user:add");//硬编码 //拿到当前登录的这个对象 Subject subject = SecurityUtils.getSubject(); User currentPrincipal = (User)subject.getPrincipal();//拿到user对象 //设置当前用户的权限,从数据库中查询而来 info.addStringPermission(currentPrincipal.getPerms()); return info; } //认证 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException { System.out.println("执行了=>认证doGetAuthorizationInfo"); /*用户名 密码 数据获取 String name="root"; String password="123456"; UsernamePasswordToken userToken=(UsernamePasswordToken) token; if(!userToken.getUsername().equals(name)) { return null;//抛出异常 UnknownAccountException } //密码认证,shiro做 return new SimpleAuthenticationInfo("",password,""); */ UsernamePasswordToken userToken=(UsernamePasswordToken) token; //连接真实数据库 User user = userService.queryUserByName(userToken.getUsername()); if(user==null) { return null;//抛出异常 UnknownAccountException } //为了完美,我们在用户登录后应该把信息放到Session中,我们完善下!在执行认证逻辑时候,加入session Subject currentSubject = SecurityUtils.getSubject(); Session session = currentSubject.getSession(); session.setAttribute("loginUser",user); //第一个参数类型principal 当事人;首要的;最主要的 将user对象传递给上面的授权操作 return new SimpleAuthenticationInfo(user,user.getPwd(),""); } }
3.5 用户授权操作
- 使用shiro的过滤器来拦截请求
- 在 ShiroFilterFactoryBean 中添加一个过滤器
//授权过滤器 filterMap.put("/user/add","perms[user:add]"); //大家记得注意顺序!
- 当我们实现权限拦截后,shiro会自动跳转到未授权的页面
-
配置一个未授权的提示的页面,增加一个controller提示
@RequestMapping("/noauth") @ResponseBody public String noAuth(){ return "未经授权不能访问此页面"; }
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在shiroFilterFactoryBean 中配置一个未授权的请求页面
shiroFilterFactoryBean.setUnauthorizedUrl("/noauth");
3.6 Shiro授权
- 在UserRealm 中添加授权的逻辑,增加授权的字符串
//授权 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { System.out.println("执行了=>授权doGetAuthorizationInfo"); //给资源进行授权 SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); //添加资源的授权字符串 //info.addStringPermission("user:add");//硬编码 //拿到当前登录的这个对象 Subject subject = SecurityUtils.getSubject(); User currentPrincipal = (User)subject.getPrincipal();//拿到user对象 //设置当前用户的权限,从数据库中查询而来 info.addStringPermission(currentPrincipal.getPerms()); return info; }
- 在过滤器中,将 update 请求也进行权限拦截下
//拦截 LinkedHashMap<String, String> filterMap = new LinkedHashMap<>(); //授权 正常情况下,没有授权会跳转到未授权页面 filterMap.put("/user/add","perms[user:add]"); filterMap.put("/user/update","perms[user:update]");
3.7 整合thymeleaf
- 添加maven依赖
<!--shiro-thymeleaf--> <dependency> <groupId>com.github.theborakompanioni</groupId> <artifactId>thymeleaf-extras-shiro</artifactId> <version>2.1.0</version> </dependency>
- 配置一个shiro的Dialect ,在shiro的配置中增加一个Bean
//配置ShiroDialect:方言,用于整合thymeleaf和shiro // 用于 thymeleaf 和 shiro 标签配合使用 @Bean public ShiroDialect getShiroDialect(){ return new ShiroDialect(); }
- 修改前端的配置
<div shiro:hasPermission="user:add"> <a th:href="@{/user/add}">add</a> </div> <div shiro:hasPermission="user:update"> <a th:href="@{/user/update}">update</a> </div>
- 在执行认证逻辑时候,加入session
//为了完美,在用户登录后应该把信息放到Session中,我们完善下!在执行认证逻辑时候,加入session Subject currentSubject = SecurityUtils.getSubject(); Session session = currentSubject.getSession(); session.setAttribute("loginUser",user);
- 前端从session中获取,然后用来判断是否显示登录
<p th:if="${session.loginUser==null}"> <a th:href="@{/toLogin}">登录</a> </p>
3.8 效果展示