SpringBoot原理分析 | 安全框架：Shiro

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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；

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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

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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

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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><!--shiro-core--><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-core</artifactId><version>1.11.0</version></dependency><!--configure logging--><!--jcl-over-slf4j--><dependency><groupId>org.slf4j</groupId><artifactId>jcl-over-slf4j</artifactId><version>2.0.7</version></dependency><!--slf4j-log4j12--><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>2.0.7</version></dependency><!--log4j--><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency></dependencies>

resources/log4j.properties

log4j.rootLogger=INFO, stdoutlog4j.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);}
}

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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sessionSession 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><!--shiro-springboot--><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-spring-boot-starter</artifactId><version>1.11.0</version></dependency><!--thymeleaf--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><!--web--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--test--><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UserRealmsecurityManager.setRealm(userRealm);return securityManager;}//Realm对象@Beanpublic UserRealm userRealm(){return new UserRealm();}
}

<!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@Overrideprotected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {System.out.println("执行了=>授权doGetAuthorizationInfo");return null;}//认证@Overrideprotected 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><!--springboot-mybatis--><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.3.0</version></dependency><!--lombok--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.26</version></dependency><!--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><!--druid--><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.2.16</version></dependency><!--shiro-springboot--><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-spring-boot-starter</artifactId><version>1.11.0</version></dependency><!--thymeleaf--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><!--web--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--test--><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=UTCdriver-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: 5minIdle: 5maxActive: 20maxWait: 60000timeBetweenEvictionRunsMillis: 60000minEvictableIdleTimeMillis: 300000validationQuery: SELECT 1 FROM DUALtestWhileIdle: truetestOnBorrow: falsetestOnReturn: falsepoolPreparedStatements: 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/log4jfilters: stat,wall,log4jmaxPoolPreparedStatementPerConnectionSize: 20useGlobalDataSourceStat: trueconnectionProperties: 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 mapperPUBLIC "-//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 {@AutowiredUserServiceImpl userService;@Testvoid 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 {@AutowiredUserServiceImpl userService;@Testvoid 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 {@AutowiredUserService userService;//授权@Overrideprotected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {System.out.println("执行了=>授权doGetAuthorizationInfo");return null;}//认证@Overrideprotected 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

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UserRealmsecurityManager.setRealm(userRealm);return securityManager;}//Realm对象@Beanpublic 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 {@AutowiredUserService userService;//授权@Overrideprotected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {System.out.println("执行了=>授权doGetAuthorizationInfo");//SimpleAuthorizationInfoSimpleAuthorizationInfo 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@Overrideprotected 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")@ResponseBodypublic String unauthorized(){return "未经授权无法访问此页面！";}
}

shiro继承Thymeleaf

依赖导入

       <!--shiro-thymeleaf--><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@Beanpublic 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>