目录Shiro简介Shiro快速入门SpringBoot-Shiro整合（最后会附上完整代码）附上最后的完整代码Shiro整合mybatis认证搞完了，我们再来看看授权Shiro-thymeleaf整合
Shiro简介
- Apache Shiro是一个强大且易用的Java安全框架,执行身份验证、授权、密码和会话管理 三个核心组件：Subject, SecurityManager 和 Realms Subject代表了当前用户的安全操作 SecurityManager管理所有用户的安全操作，是Shiro框架的核心，Shiro通过SecurityManager来管理内部组件实例，并通过它来提供安全管理的各种服务。 Realm充当了Shiro与应用安全数据间的“桥梁”或者“连接器”。也就是说，当对用户执行认证（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快速入门
导入依赖
<dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-core</artifactId> <version>1.7.1</version> </dependency> <!-- configure logging --> <!-- https://mvnrepository.com/artifact/org.slf4j/jcl-over-slf4j --> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>2.0.0-alpha1</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>2.0.0-alpha1</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency>
配置log4j.properties
log4j.rootLogger=INFO, stdoutlog4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.layout=org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n# General Apache librarieslog4j.logger.org.apache=WARN# Springlog4j.logger.org.springframework=WARN# Default Shiro logginglog4j.logger.org.apache.shiro=INFO# Disable verbose logginglog4j.logger.org.apache.shiro.util.ThreadContext=WARNlog4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN
配置Shiro.ini（在IDEA中需要导入ini插件）
[users]# user 'root' with password 'secret' and the 'admin' roleroot = secret, admin# user 'guest' with the password 'guest' and the 'guest' roleguest = 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
快速入门实现类 quickStart.java
import org.apache.shiro.SecurityUtils;import org.apache.shiro.authc.*;import org.apache.shiro.config.IniSecurityManagerFactory;import org.apache.shiro.mgt.DefaultSecurityManager;import org.apache.shiro.realm.text.IniRealm;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); /* Shiro三大对象： Subject： 用户 SecurityManager：管理所有用户 Realm： 连接数据 */ public static void main(String[] args) { // 创建带有配置的Shiro SecurityManager的最简单方法 // realms, users, roles and permissions 是使用简单的INI配置。 // 我们将使用可以提取.ini文件的工厂来完成此操作， // 返回一个SecurityManager实例： // 在类路径的根目录下使用shiro.ini文件 // (file：和url：前缀分别从文件和url加载): //Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini"); //SecurityManager securityManager = factory.getInstance(); DefaultSecurityManager securityManager = new DefaultSecurityManager(); IniRealm iniRealm = new IniRealm("classpath:shiro.ini"); securityManager.setRealm(iniRealm); // 对于这个简单的示例快速入门，请使SecurityManager // 可作为JVM单例访问。大多数应用程序都不会这样做 // 而是依靠其容器配置或web.xml进行 // webapps。这超出了此简单快速入门的范围，因此 // 我们只做最低限度的工作，这样您就可以继续感受事物. SecurityUtils.setSecurityManager(securityManager); // 现在已经建立了一个简单的Shiro环境，让我们看看您可以做什么： // 获取当前用户对象 Subject Subject currentUser = SecurityUtils.getSubject(); // 使用Session做一些事情（不需要Web或EJB容器！！！ Session session = currentUser.getSession();//通过当前用户拿到Session 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()) { //token ： 令牌，没有获取，随机 UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa"); token.setRememberMe(true); // 设置记住我 try { currentUser.login(token);//执行登陆操作 } catch (UnknownAccountException uae) {//打印出 用户名 log.info("There is no user with username of " + token.getPrincipal()); } catch (IncorrectCredentialsException ice) {//打印出 密码 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."); } // ... 在此处捕获更多异常（也许是针对您的应用程序的自定义异常？ 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();//注销 System.exit(0);//退出 }}
启动测试
SpringBoot-Shiro整合（最后会附上完整代码）
前期工作
导入shiro-spring整合包依赖
<!-- shiro-spring整合包 --><dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.7.1</version></dependency>
跳转的页面index.html
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml"><head> <meta charset="UTF-8"> <title>首页</title></head><body><h1>首页</h1><p th:text="${msg}"></p><a th:href="@{/user/add}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >add</a>| <a th:href="@{/user/update}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >update</a></body></html>
add.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>add</title></head><body><p>add</p></body></html>
update.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>update</title></head><body><p>update</p></body></html>
编写shiro的配置类ShiroConfig.java
package com.example.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;@Configurationpublic class ShiroConfig { //3. ShiroFilterFactoryBean @Bean public ShiroFilterFactoryBean getshiroFilterFactoryBean(@Qualifier("SecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){ ShiroFilterFactoryBean factoryBean = new ShiroFilterFactoryBean(); //设置安全管理器 factoryBean.setSecurityManager(defaultWebSecurityManager); return factoryBean; } //2.创建DefaultWebSecurityManager @Bean(name = "SecurityManager") public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){ DefaultWebSecurityManager SecurityManager=new DefaultWebSecurityManager(); //3.关联Realm SecurityManager.setRealm(userRealm); return SecurityManager; } //1.创建Realm对象 @Bean(name = "userRealm") public UserRealm userRealm(){ return new UserRealm(); }}
编写UserRealm.java
package com.example.config;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;public class UserRealm extends AuthorizingRealm { @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { System.out.println("授权"); return null; } @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { System.out.println("认证"); return null; }}
编写controller测试环境是否搭建好
package com.example.controller;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class MyController { @RequestMapping({"/","/index"}) public String index(Model model){ model.addAttribute("msg","hello,shiro"); return "index"; } @RequestMapping("/user/add") public String add(){ return "user/add"; } @RequestMapping("/user/update") public String update(){ return "user/update"; }}
实现登录拦截
在ShiroConfig.java文件中添加拦截
Map<String,String> filterMap = new LinkedHashMap<>(); //对/user/*下的文件只有拥有authc权限的才能访问 filterMap.put("/user/*","authc"); //将Map存放到ShiroFilterFactoryBean中 factoryBean.setFilterChainDefinitionMap(filterMap);
这样，代码跑起来，你点击add或者update就会出现404错误，这时候，我们再继续添加，让它跳转到我们自定义的登录页
添加登录拦截到登录页
//需进行权限认证时跳转到toLogin factoryBean.setLoginUrl("/toLogin"); //权限认证失败时跳转到unauthorized factoryBean.setUnauthorizedUrl("/unauthorized");
login.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>登录</title></head><body><form action=""> 用户名:<input type="text" name="username"><br> 密码:<input type="text" name="password"><br> <input type="submit"></form></body></html>
视图跳转添加一个login页面跳转
@RequestMapping("/toLogin") public String login(){ return "login"; }
上面，我们已经成功拦截了，现在我们来实现用户认证
首先，我们需要一个登录页面
login.html
<!DOCTYPE html><html lang="en" xmlns:th="http://www.w3.org/1999/xhtml"><head> <meta charset="UTF-8"> <title>登录</title></head><body><p th:text="${msg}" style="color: red"></p><form th:action="@{/login}"> 用户名:<input type="text" name="username"><br> 密码:<input type="text" name="password"><br> <input type="submit"></form></body></html>
其次，去controller编写跳转到登录页面
@RequestMapping("/login") public String login(String username,String password,Model model){ //获得当前的用户 Subject subject = SecurityUtils.getSubject(); //封装用户数据 UsernamePasswordToken taken = new UsernamePasswordToken(username,password); try{//执行登陆操作，没有发生异常就说明登陆成功 subject.login(taken); return "index"; }catch (UnknownAccountException e){ model.addAttribute("msg","用户名错误"); return "login"; }catch (IncorrectCredentialsException e){ model.addAttribute("msg","密码错误"); return "login"; } }
最后去UserRealm.java配置认证
//认证 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { System.out.println("认证"); String name = "root"; String password = "123456"; UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken; if (!userToken.getUsername().equals(name)){ return null;//抛出异常 用户名错误那个异常 } //密码认证，shiro自己做 return new SimpleAuthenticationInfo("",password,""); }
运行测试，成功！！！
附上最后的完整代码
pom.xml引入的依赖
pom.xml
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.4.4</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>springboot-08-shiro</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot-08-shiro</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <!-- shiro-spring整合包 --> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.7.1</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> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build></project>
静态资源
index.html
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml"><head> <meta charset="UTF-8"> <title>首页</title></head><body><h1>首页</h1><p th:text="${msg}"></p><a th:href="@{/user/add}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >add</a>| <a th:href="@{/user/update}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >update</a></body></html>
login.html
<!DOCTYPE html><html lang="en" xmlns:th="http://www.w3.org/1999/xhtml"><head> <meta charset="UTF-8"> <title>登录</title></head><body><p th:text="${msg}" style="color: red"></p><form th:action="@{/login}"> 用户名:<input type="text" name="username"><br> 密码:<input type="text" name="password"><br> <input type="submit"></form></body></html>
add.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>add</title></head><body><p>add</p></body></html>
update.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>update</title></head><body><p>update</p></body></html>
controller层
MyController.java
package com.example.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;@Controllerpublic class MyController { @RequestMapping({"/","/index"}) public String index(Model model){ model.addAttribute("msg","hello,shiro"); return "index"; } @RequestMapping("/user/add") public String add(){ return "user/add"; } @RequestMapping("/user/update") public String update(){ return "user/update"; } @RequestMapping("/toLogin") public String toLogin(){ return "login"; } @RequestMapping("/login") public String login(String username,String password,Model model){ //获得当前的用户 Subject subject = SecurityUtils.getSubject(); //封装用户数据 UsernamePasswordToken taken = new UsernamePasswordToken(username,password); try{//执行登陆操作，没有发生异常就说明登陆成功 subject.login(taken); return "index"; }catch (UnknownAccountException e){ model.addAttribute("msg","用户名错误"); return "login"; }catch (IncorrectCredentialsException e){ model.addAttribute("msg","密码错误"); return "login"; } }}
config文件
ShiroConfig.java
package com.example.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;@Configurationpublic class ShiroConfig { //4. ShiroFilterFactoryBean @Bean public ShiroFilterFactoryBean getshiroFilterFactoryBean(@Qualifier("SecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){ ShiroFilterFactoryBean factoryBean = new ShiroFilterFactoryBean(); //5. 设置安全管理器 factoryBean.setSecurityManager(defaultWebSecurityManager); /* shiro内置过滤器 anon无需授权、登录就可以访问，所有人可访。 authc 需要登录授权才能访问。 authcBasicBasic HTTP身份验证拦截器 logout退出拦截器。退出成功后，会 redirect到设置的/URI noSessionCreation不创建会话连接器 perms授权拦截器，拥有对某个资源的权限才可访问 port端口拦截器 restrest风格拦截器 roles角色拦截器，拥有某个角色的权限才可访问 sslssl拦截器。通过https协议才能通过 user用户拦截器，需要有remember me功能方可使用 */ Map<String,String> filterMap = new LinkedHashMap<>(); //对/user/*下的文件只有拥有authc权限的才能访问 filterMap.put("/user/*","authc"); //将Map存放到ShiroFilterFactoryBean中 factoryBean.setFilterChainDefinitionMap(filterMap); //需进行权限认证时跳转到toLogin factoryBean.setLoginUrl("/toLogin"); //权限认证失败时跳转到unauthorized factoryBean.setUnauthorizedUrl("/unauthorized"); return factoryBean; } //2.创建DefaultWebSecurityManager @Bean(name = "SecurityManager") public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){ DefaultWebSecurityManager SecurityManager=new DefaultWebSecurityManager(); //3.关联Realm SecurityManager.setRealm(userRealm); return SecurityManager; } //1.创建Realm对象 @Bean(name = "userRealm") public UserRealm userRealm(){ return new UserRealm(); }}
UserRealm.java
package com.example.config;import org.apache.shiro.authc.*;import org.apache.shiro.authz.AuthorizationInfo;import org.apache.shiro.realm.AuthorizingRealm;import org.apache.shiro.subject.PrincipalCollection;public class UserRealm extends AuthorizingRealm { //授权 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { System.out.println("授权"); return null; } //认证 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { System.out.println("认证"); String name = "root"; String password = "123456"; UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken; if (!userToken.getUsername().equals(name)){ return null;//抛出异常 用户名错误那个异常 } //密码认证，shiro自己做 return new SimpleAuthenticationInfo("",password,""); }}
但是，我们在用户认证这里，真实情况是从数据库中取的，所以，我们接下来去实现一下从数据库中取出数据来实现用户认证
Shiro整合mybatis
前期工作
在前面导入的依赖中，继续添加以下依赖
<!-- mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- 数据源Druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.2.5</version> </dependency> <!-- 引入mybatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.1.4</version> </dependency> <!-- lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency>
导入了mybatis和Druid，就去application.properties配置一下和DruidDruid
spring: datasource: username: root password: 123456 url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8 driver-class-name: com.mysql.cj.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource # 自定义数据源 #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
mybatis
mybatis: type-aliases-package: com.example.pojo mapper-locations: classpath:mapper/*.xml
连接数据库编写实体类
package com.example.pojo;import lombok.AllArgsConstructor;import lombok.Data;import lombok.NoArgsConstructor;@Data@AllArgsConstructor@NoArgsConstructorpublic class User { private Integer id; private String name; private String pwd;}
编写mapper
package com.example.mapper;import com.example.pojo.User;import org.apache.ibatis.annotations.Mapper;import org.springframework.stereotype.Repository;@Repository@Mapperpublic interface UserMapper { public User getUserByName(String name);}
编写mapper.xml
<?xml version="1.0" encoding="UTF8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.example.mapper.UserMapper"> <select id="getUserByName" parameterType="String" resultType="User"> select * from mybatis.user where name=#{name} </select></mapper>
编写service
package com.example.service;import com.example.pojo.User;public interface UserService { public User getUserByName(String name);}
package com.example.service;import com.example.mapper.UserMapper;import com.example.pojo.User;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;@Servicepublic class UserServiceImpl implements UserService{ @Autowired UserMapper userMapper; @Override public User getUserByName(String name) { return userMapper.getUserByName(name); }}
使用数据库中的数据
修改UserRealm.java即可
package com.example.config;import com.example.pojo.User;import com.example.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;public class UserRealm extends AuthorizingRealm { @Autowired UserService userService; //授权 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { System.out.println("授权"); return null; } //认证 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { System.out.println("认证"); UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken; //连接真实的数据库 User user = userService.getUserByName(userToken.getUsername()); if (user==null){ return null;//抛出异常 用户名错误那个异常 } //密码认证，shiro自己做 return new SimpleAuthenticationInfo("",user.getPwd(),""); }}
认证搞完了，我们再来看看授权
在ShiroConfig.java文件加入授权，加入这行代码： filterMap.put(“/user/add”,”perms[user:add]”);//只有拥有user:add权限的人才能访问add，注意授权的位置在认证前面，不然授权会认证不了；
运行测试：add页面无法访问
授权同理：filterMap.put(“/user/update”,”perms[user:update]”);//只有拥有user:update权限的人才能访问update
自定义一个未授权跳转页面
在ShiroConfig.java文件设置未授权时跳转到unauthorized页面，加入这行代码：factoryBean.setUnauthorizedUrl(“/unauthorized”); 2. 去Mycontroller写跳转未授权页面
@RequestMapping("/unauthorized") @ResponseBody//懒得写界面，返回一个字符串 public String unauthorized(){ return "没有授权，无法访问"; }
运行效果：
从数据库中接受用户的权限，进行判断
在数据库中添加一个属性perms，相应的实体类也要修改
修改UserRealm.java
package com.example.config;import com.example.pojo.User;import com.example.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;public class UserRealm extends AuthorizingRealm { @Autowired UserService userService; //授权 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { System.out.println("授权"); SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); //没有使用数据库，直接自己设置的用户权限，给每个人都设置了，现实中要从数据库中取 //info.addStringPermission("user:add"); //从数据库中得到权限信息 //获得当前登录的对象 Subject subject = SecurityUtils.getSubject(); //拿到User对象，通过getPrincipal()获得 User currentUser = (User) subject.getPrincipal(); //设置当前用户的权限 info.addStringPermission(currentUser.getPerms()); return info; } //认证 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { System.out.println("认证"); UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken; //连接真实的数据库 User user = userService.getUserByName(userToken.getUsername()); if (user==null){ return null;//抛出异常 用户名错误那个异常 } //密码认证，shiro自己做 return new SimpleAuthenticationInfo(user,user.getPwd(),""); }}
有了授权后，就又出现了一个问题，我们是不是要让用户没有权限的东西，就看不见呢？这时候，就出现了Shiro-thymeleaf整合
Shiro-thymeleaf整合
导入整合的依赖
<!-- https://mvnrepository.com/artifact/com.github.theborakompanioni/thymeleaf-extras-shiro --><dependency> <groupId>com.github.theborakompanioni</groupId> <artifactId>thymeleaf-extras-shiro</artifactId> <version>2.0.0</version></dependency>
在ShiroConfig整合ShiroDialect
//整合ShiroDialect： 用来整合 shiro thymeleaf @Bean public ShiroDialect getShiroDialect(){ return new ShiroDialect(); }
修改index页面
<html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:shiro="http://www.thymeleaf.org/thymeleaf-extras-shiro"><!-- 三个命名空间xmlns:th="http://www.thymeleaf.org"xmlns:sec="http://www.thymeleaf.org/extras/spring-security"xmlns:shiro="http://www.thymeleaf.org/thymeleaf-extras-shiro"--><head> <meta charset="UTF-8"> <title>首页</title></head><body><h1>首页</h1><p th:text="${msg}"></p><!--判断是否有用户登录，如果有就不显示登录按钮--><div th:if="${session.loginUser==null}"> <a th:href="@{/toLogin}" rel="external nofollow" >登录</a></div><div shiro:hasPermission="user:add"> <a th:href="@{/user/add}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >add</a></div><div shiro:hasPermission="user:update"> <a th:href="@{/user/update}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >update</a></div></body></html>
判断是否有用户登录
//这个是整合shiro和thymeleaf用到的，让登录按钮消失的判断 Subject subject = SecurityUtils.getSubject(); Session session = subject.getSession(); session.setAttribute("loginUser", user);
测试
以上就是Java安全框架——Shiro的使用详解(附springboot整合Shiro的demo)的详细内容，更多关于Java安全框架——Shiro的资料请关注其它相关文章！
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