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Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

瀏覽：58日期：2022-08-14 13:39:24

Shiro簡介 Apache Shiro是一個強大且易用的Java安全框架,執行身份驗證、授權、密碼和會話管理三個核心組件：Subject, SecurityManager 和 Realms Subject代表了當前用戶的安全操作 SecurityManager管理所有用戶的安全操作，是Shiro框架的核心，Shiro通過SecurityManager來管理內部組件實例，并通過它來提供安全管理的各種服務。 Realm充當了Shiro與應用安全數據間的“橋梁”或者“連接器”。也就是說，當對用戶執行認證（登錄）和授權（訪問控制）驗證時，Shiro會從應用配置的Realm中查找用戶及其權限信息。 Realm實質上是一個安全相關的DAO：它封裝了數據源的連接細節，并在需要時將相關數據提供給Shiro。當配置Shiro時，你必須至少指定一個Realm，用于認證和（或）授權。配置多個Realm是可以的，但是至少需要一個。 Shiro快速入門

導入依賴

<dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-core</artifactId> <version>1.7.1</version></dependency><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中需要導入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

快速入門實現類 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三大對象：Subject：用戶SecurityManager：管理所有用戶Realm：連接數據 */ public static void main(String[] args) {// 創建帶有配置的Shiro SecurityManager的最簡單方法// realms, users, roles and permissions 是使用簡單的INI配置。// 我們將使用可以提取.ini文件的工廠來完成此操作，// 返回一個SecurityManager實例：// 在類路徑的根目錄下使用shiro.ini文件// (file：和url：前綴分別從文件和url加載)://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);// 對于這個簡單的示例快速入門，請使SecurityManager// 可作為JVM單例訪問。大多數應用程序都不會這樣做// 而是依靠其容器配置或web.xml進行// webapps。這超出了此簡單快速入門的范圍，因此// 我們只做最低限度的工作，這樣您就可以繼續感受事物.SecurityUtils.setSecurityManager(securityManager);// 現在已經建立了一個簡單的Shiro環境，讓我們看看您可以做什么：// 獲取當前用戶對象 SubjectSubject currentUser = SecurityUtils.getSubject();// 使用Session做一些事情（不需要Web或EJB容器！！！Session session = currentUser.getSession();//通過當前用戶拿到Sessionsession.setAttribute('someKey', 'aValue');String value = (String) session.getAttribute('someKey');if (value.equals('aValue')) { log.info('Retrieved the correct value! [' + value + ']');}// 判斷當前用戶是否被認證if (!currentUser.isAuthenticated()) { //token ：令牌，沒有獲取，隨機 UsernamePasswordToken token = new UsernamePasswordToken('lonestarr', 'vespa'); token.setRememberMe(true); // 設置記住我 try {currentUser.login(token);//執行登陸操作 } catch (UnknownAccountException uae) {//打印出用戶名log.info('There is no user with username of ' + token.getPrincipal()); } catch (IncorrectCredentialsException ice) {//打印出密碼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.'); } // ... 在此處捕獲更多異常（也許是針對您的應用程序的自定義異常？ 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();//注銷System.exit(0);//退出 }}

啟動測試

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

SpringBoot-Shiro整合（最后會附上完整代碼）

前期工作

導入shiro-spring整合包依賴

<dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.7.1</version></dependency>

跳轉的頁面index.html

<html lang='en' xmlns:th='http://www.w3.org/1999/xhtml'><head> <meta charset='UTF-8'> <title>首頁</title></head><body><h1>首頁</h1><p th:text='${msg}'></p><a th:href='http://www.aoyou183.cn/bcjs/@{/user/add}' rel='external nofollow' rel='external nofollow' rel='external nofollow' >add</a>| <a th:href='http://www.aoyou183.cn/bcjs/@{/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>

編寫shiro的配置類ShiroConfig.java

編寫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('授權');return null; } @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {System.out.println('認證');return null; }}

編寫controller測試環境是否搭建好

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'; }}

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

實現登錄攔截

在ShiroConfig.java文件中添加攔截

Map<String,String> filterMap = new LinkedHashMap<>();//對/user/*下的文件只有擁有authc權限的才能訪問filterMap.put('/user/*','authc');//將Map存放到ShiroFilterFactoryBean中factoryBean.setFilterChainDefinitionMap(filterMap);

這樣，代碼跑起來，你點擊add或者update就會出現404錯誤，這時候，我們再繼續添加，讓它跳轉到我們自定義的登錄頁

添加登錄攔截到登錄頁

//需進行權限認證時跳轉到toLoginfactoryBean.setLoginUrl('/toLogin');//權限認證失敗時跳轉到unauthorizedfactoryBean.setUnauthorizedUrl('/unauthorized');

<!DOCTYPE html><html lang='en'><head> <meta charset='UTF-8'> <title>登錄</title></head><body><form action=''> 用戶名:<input type='text' name='username'><br> 密碼:<input type='text' name='password'><br> <input type='submit'></form></body></html>

視圖跳轉添加一個login頁面跳轉

@RequestMapping('/toLogin') public String login(){return 'login'; }

上面，我們已經成功攔截了，現在我們來實現用戶認證

首先，我們需要一個登錄頁面

<!DOCTYPE html><html lang='en' xmlns:th='http://www.w3.org/1999/xhtml'><head> <meta charset='UTF-8'> <title>登錄</title></head><body><p th:text='${msg}' style='color: red'></p><form th:action='@{/login}'> 用戶名:<input type='text' name='username'><br> 密碼:<input type='text' name='password'><br> <input type='submit'></form></body></html>

其次，去controller編寫跳轉到登錄頁面

@RequestMapping('/login') public String login(String username,String password,Model model){//獲得當前的用戶Subject subject = SecurityUtils.getSubject();//封裝用戶數據UsernamePasswordToken taken = new UsernamePasswordToken(username,password);try{//執行登陸操作，沒有發生異常就說明登陸成功 subject.login(taken); return 'index';}catch (UnknownAccountException e){ model.addAttribute('msg','用戶名錯誤'); return 'login';}catch (IncorrectCredentialsException e){ model.addAttribute('msg','密碼錯誤'); return 'login';} }

最后去UserRealm.java配置認證

//認證 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {System.out.println('認證');String name = 'root';String password = '123456';UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;if (!userToken.getUsername().equals(name)){ return null;//拋出異常用戶名錯誤那個異常}//密碼認證，shiro自己做return new SimpleAuthenticationInfo('',password,''); }

運行測試，成功！！！

附上最后的完整代碼

pom.xml引入的依賴

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/>  </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><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>

靜態資源

index.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層

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){//獲得當前的用戶Subject subject = SecurityUtils.getSubject();//封裝用戶數據UsernamePasswordToken taken = new UsernamePasswordToken(username,password);try{//執行登陸操作，沒有發生異常就說明登陸成功 subject.login(taken); return 'index';}catch (UnknownAccountException e){ model.addAttribute('msg','用戶名錯誤'); return 'login';}catch (IncorrectCredentialsException e){ model.addAttribute('msg','密碼錯誤'); 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. 設置安全管理器factoryBean.setSecurityManager(defaultWebSecurityManager);/* shiro內置過濾器 anon無需授權、登錄就可以訪問，所有人可訪。 authc 需要登錄授權才能訪問。 authcBasicBasic HTTP身份驗證攔截器 logout退出攔截器。退出成功后，會 redirect到設置的/URI noSessionCreation不創建會話連接器 perms授權攔截器，擁有對某個資源的權限才可訪問 port端口攔截器 restrest風格攔截器 roles角色攔截器，擁有某個角色的權限才可訪問 sslssl攔截器。通過https協議才能通過 user用戶攔截器，需要有remember me功能方可使用 */Map<String,String> filterMap = new LinkedHashMap<>();//對/user/*下的文件只有擁有authc權限的才能訪問filterMap.put('/user/*','authc');//將Map存放到ShiroFilterFactoryBean中factoryBean.setFilterChainDefinitionMap(filterMap);//需進行權限認證時跳轉到toLoginfactoryBean.setLoginUrl('/toLogin');//權限認證失敗時跳轉到unauthorizedfactoryBean.setUnauthorizedUrl('/unauthorized');return factoryBean; } //2.創建DefaultWebSecurityManager @Bean(name = 'SecurityManager') public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier('userRealm') UserRealm userRealm){DefaultWebSecurityManager SecurityManager=new DefaultWebSecurityManager();//3.關聯RealmSecurityManager.setRealm(userRealm);return SecurityManager; } //1.創建Realm對象 @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 { //授權 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {System.out.println('授權');return null; } //認證 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {System.out.println('認證');String name = 'root';String password = '123456';UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;if (!userToken.getUsername().equals(name)){ return null;//拋出異常用戶名錯誤那個異常}//密碼認證，shiro自己做return new SimpleAuthenticationInfo('',password,''); }}

但是，我們在用戶認證這里，真實情況是從數據庫中取的，所以，我們接下來去實現一下從數據庫中取出數據來實現用戶認證

Shiro整合mybatis

前期工作

在前面導入的依賴中，繼續添加以下依賴

<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>1.2.5</version></dependency><dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.1.4</version></dependency><dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId></dependency>

導入了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 # 自定義數據源 #Spring Boot 默認是不注入這些屬性值的，需要自己綁定 #druid 數據源專有配置 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 #配置監控統計攔截的filters，stat:監控統計、log4j：日志記錄、wall：防御sql注入 #如果允許時報錯 java.lang.ClassNotFoundException: org.apache.log4j.Priority #則導入 log4j 依賴即可，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

連接數據庫編寫實體類

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;}

編寫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);}

編寫mapper.xml

<?xml version='1.0' encoding='UTF8' ?><!DOCTYPE mapperPUBLIC '-//mybatis.org//DTD Mapper 3.0//EN''http://mybatis.org/dtd/mybatis-3-mapper.dtd'><mapper namespace='com.example.mapper.UserMapper'> <select parameterType='String' resultType='User'>select * from mybatis.user where name=#{name} </select></mapper>

編寫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); }}

使用數據庫中的數據

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; //授權 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {System.out.println('授權');return null; } //認證 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {System.out.println('認證');UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;//連接真實的數據庫User user = userService.getUserByName(userToken.getUsername());if (user==null){ return null;//拋出異常用戶名錯誤那個異常}//密碼認證，shiro自己做return new SimpleAuthenticationInfo('',user.getPwd(),''); }}認證搞完了，我們再來看看授權

在ShiroConfig.java文件加入授權，加入這行代碼： filterMap.put('/user/add','perms[user:add]');//只有擁有user:add權限的人才能訪問add，注意授權的位置在認證前面，不然授權會認證不了；

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

運行測試：add頁面無法訪問

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

授權同理：filterMap.put('/user/update','perms[user:update]');//只有擁有user:update權限的人才能訪問update

自定義一個未授權跳轉頁面

在ShiroConfig.java文件設置未授權時跳轉到unauthorized頁面，加入這行代碼：factoryBean.setUnauthorizedUrl('/unauthorized'); 2. 去Mycontroller寫跳轉未授權頁面

@RequestMapping('/unauthorized') @ResponseBody//懶得寫界面，返回一個字符串 public String unauthorized(){return '沒有授權，無法訪問'; }

運行效果：

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

從數據庫中接受用戶的權限，進行判斷

在數據庫中添加一個屬性perms，相應的實體類也要修改

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

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; //授權 @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {System.out.println('授權');SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();//沒有使用數據庫，直接自己設置的用戶權限，給每個人都設置了，現實中要從數據庫中取//info.addStringPermission('user:add');//從數據庫中得到權限信息//獲得當前登錄的對象Subject subject = SecurityUtils.getSubject();//拿到User對象，通過getPrincipal()獲得User currentUser = (User) subject.getPrincipal();//設置當前用戶的權限info.addStringPermission(currentUser.getPerms());return info; } //認證 @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {System.out.println('認證');UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;//連接真實的數據庫User user = userService.getUserByName(userToken.getUsername());if (user==null){ return null;//拋出異常用戶名錯誤那個異常}//密碼認證，shiro自己做return new SimpleAuthenticationInfo(user,user.getPwd(),''); }}

Java安全框架——Shiro的使用詳解(附springboot整合Shiro的demo)

有了授權后，就又出現了一個問題，我們是不是要讓用戶沒有權限的東西，就看不見呢？這時候，就出現了Shiro-thymeleaf整合

Shiro-thymeleaf整合

導入整合的依賴

<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：用來整合 shiro thymeleaf @Bean public ShiroDialect getShiroDialect(){return new ShiroDialect(); }

修改index頁面

<html lang='en' xmlns:th='http://www.thymeleaf.org' xmlns:shiro='http://www.thymeleaf.org/thymeleaf-extras-shiro'><head> <meta charset='UTF-8'> <title>首頁</title></head><body><h1>首頁</h1><p th:text='${msg}'></p><div th:if='${session.loginUser==null}'> <a th:href='http://www.aoyou183.cn/bcjs/@{/toLogin}' rel='external nofollow' >登錄</a></div><div shiro:hasPermission='user:add'> <a th:href='http://www.aoyou183.cn/bcjs/@{/user/add}' rel='external nofollow' rel='external nofollow' rel='external nofollow' >add</a></div><div shiro:hasPermission='user:update'> <a th:href='http://www.aoyou183.cn/bcjs/@{/user/update}' rel='external nofollow' rel='external nofollow' rel='external nofollow' >update</a></div></body></html>

判斷是否有用戶登錄

//這個是整合shiro和thymeleaf用到的，讓登錄按鈕消失的判斷Subject subject = SecurityUtils.getSubject();Session session = subject.getSession();session.setAttribute('loginUser', user);

測試

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