SpringBoot整合mybatis、shiro、redis实现基于数据库的细粒度动态权限管理系统实例（转）

SpringBoot整合mybatis、shiro、redis实现基于数据库的细粒度动态权限管理系统实例

.embody { padding: 10px 10px 10px; margin: 0 -20px; border-bottom: solid 1px #ededed }.embody_b { margin: 0; padding: 10px 0 }.embody .embody_t,.embody .embody_c { display: inline-block; margin-right: 10px }.embody_t { font-size: 12px; color: #999 }.embody_c { font-size: 12px }.embody_c img,.embody_c em { display: inline-block; vertical-align: middle }.embody_c img { width: 30px; height: 30px }.embody_c em { margin: 0 20px 0 10px; color: #333; font-style: normal } shiro 目录(?)[+]前言表结构maven配置配置Druid配置mybatisMyMapperthymeleaf配置shiro配置配置文件ShiroConfig配置自定义Realm认证授权会话管理按钮控制效果图运行下载

1.前言

本文主要介绍使用SpringBoot与shiro实现基于数据库的细粒度动态权限管理系统实例。使用技术：SpringBoot、mybatis、shiro、thymeleaf、pagehelper、Mapper插件、druid、dataTables、ztree、jQuery开发工具：intellij idea数据库：mysql、redis基本上是基于使用SpringSecurity的demo上修改而成，地址 http://blog.csdn.net/poorcoder_/article/details/70231779

2.表结构

还是是用标准的5张表来展现权限。如下图：分别为用户表，角色表，资源表，用户角色表，角色资源表。在这个demo中使用了mybatis-generator自动生成代码。运行mybatis-generator:generate -e 根据数据库中的表，生成 相应的model,mapper单表的增删改查。不过如果是导入本项目的就别运行这个命令了。新增表的话，也要修改mybatis-generator-config.xml中的tableName，指定表名再运行。

3.maven配置

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>

<groupId>com.study</groupId>
<artifactId>springboot-shiro</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>springboot-shiro</name>
<description>Demo project for Spring Boot</description>

<parent>        <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>

<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.1.0</version>        </dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.29</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>net.sourceforge.nekohtml</groupId>
<artifactId>nekohtml</artifactId>
<version>1.9.22</version>
</dependency>
<dependency>
<groupId>com.github.theborakompanioni</groupId>
<artifactId>thymeleaf-extras-shiro</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>org.crazycake</groupId>
<artifactId>shiro-redis</artifactId>
<version>2.4.2.1-RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.5</version>
<configuration>
<configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile>
<overwrite>true</overwrite>
<verbose>true</verbose>
</configuration>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper</artifactId>
<version>3.4.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>

</project>

4.配置Druid

package com.study.config;

import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
* Created by yangqj on 2017/4/19.
*/
@Configuration
public class DruidConfig {
@Bean
public ServletRegistrationBean druidServlet() {

ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
//登录查看信息的账号密码.

servletRegistrationBean.addInitParameter("loginUsername","admin");
servletRegistrationBean.addInitParameter("loginPassword","123456");
return servletRegistrationBean;
}
@Bean
public FilterRegistrationBean filterRegistrationBean() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
filterRegistrationBean.setFilter(new WebStatFilter());
filterRegistrationBean.addUrlPatterns("/*");
filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
return filterRegistrationBean;
}
}

在application.properties中加入：

# 数据源基础配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/shiro
spring.datasource.username=root
spring.datasource.password=root
# 连接池配置
# 初始化大小，最小，最大
spring.datasource.initialSize=1
spring.datasource.minIdle=1
spring.datasource.maxActive=20配置好后，运行项目访问http://localhost:8080/druid/ 输入配置的账号密码admin,123456进入：


5.配置mybatis
使用springboot 整合mybatis非常方便，只需在application.properties

mybatis.type-aliases-package=com.study.model
mybatis.mapper-locations=classpath:mapper/*.xml
mapper.mappers=com.study.util.MyMapper
mapper.not-empty=false
mapper.identity=MYSQL
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true

pagehelper.params=count\=countSql
将相应的路径改成项目包所在的路径即可。配置文件中可以看出来还加入了pagehelper 和Mapper插件。如果不需要，把上面配置文件中的 pagehelper删除。MyMapper:[code]package com.study.util;/*** Created by yangqj on 2017/4/20.*/import tk.mybatis.mapper.common.Mapper;import tk.mybatis.mapper.common.MySqlMapper;public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {}

对于Springboot整合mybatis可以参考https://github.com/abel533/MyBatis-Spring-Boot

6.thymeleaf配置

thymeleaf是springboot官方推荐的，所以来试一下。首先加入配置：

#spring.thymeleaf.prefix=classpath:/templates/
#spring.thymeleaf.suffix=.html
#spring.thymeleaf.mode=HTML5
#spring.thymeleaf.encoding=UTF-8
# ;charset=<encoding> is added
#spring.thymeleaf.content-type=text/html
# set to false for hot refresh
spring.thymeleaf.cache=false
spring.thymeleaf.mode=LEGACYHTML5

可以看到其实上面都是注释了的，因为springboot会根据约定俗成的方式帮我们配置好。所以上面注释部分是springboot自动配置的，如果需要自定义配置，只需要修改上注释部分即可。后两行没有注释的部分，spring.thymeleaf.cache=false表示关闭缓存，这样修改文件后不需要重新启动，缓存默认是开启的，所以指定为false。但是在intellij idea中还需要按Ctrl + Shift + F9.对于spring.thymeleaf.mode=LEGACYHTML5。thymeleaf对html中的语法要求非常严格，像我从网上找的模板，使用thymeleaf后报一堆的语法错误，后来没办法，使用弱语法校验，所以加入配置spring.thymeleaf.mode=LEGACYHTML5。加入这个配置后还需要在maven中加入

<dependency>
<groupId>net.sourceforge.nekohtml</groupId>
<artifactId>nekohtml</artifactId>
<version>1.9.22</version>
</dependency>

否则会报错的。在前端页面的头部加入一下配置后，就可以使用thymeleaf了

<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />

不过这个项目因为使用了datatables都是使用jquery 的ajax来访问数据与处理数据，所以用到的thymeleaf语法非常少，基本上可以参考的就是js即css的导入和类似于jsp的include功能的部分页面引入。对于静态文件的引入：

<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />

而文件在项目中的位置是static-css-bootstrap.min.css。为什么这样可以访问到该文件，也是因为springboot对于静态文件会自动查找/static public、/resources、/META-INF/resources下的文件。所以不需要加static.页面引入：局部页面如下:

<div  th:fragment="top">    ...</div>

主体页面映入方式：

<div th:include="common/top :: top"></div>

inclide=”文件路径::局部代码片段名称”

7.shiro配置

配置文件ShiroConfig

package com.study.config;
import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import com.github.pagehelper.util.StringUtil;
import com.study.model.Resources;
import com.study.service.ResourcesService;
import com.study.shiro.MyShiroRealm;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.spring.LifecycleBeanPostProcessor;
import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.apache.shiro.web.session.mgt.DefaultWebSessionManager;
import org.crazycake.shiro.RedisCacheManager;
import org.crazycake.shiro.RedisManager;
import org.crazycake.shiro.RedisSessionDAO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

/**
* Created by yangqj on 2017/4/23.
*/
@Configuration
public class ShiroConfig {
@Autowired(required = false)
private ResourcesService resourcesService;

@Value("${spring.redis.host}")
private String host;

@Value("${spring.redis.port}")
private int port;

@Value("${spring.redis.timeout}")
private int timeout;

@Bean
public static LifecycleBeanPostProcessor getLifecycleBeanPostProcessor() {
return new LifecycleBeanPostProcessor();
}
/**
* ShiroDialect，为了在thymeleaf里使用shiro的标签的bean
* @return
*/
@Bean
public ShiroDialect shiroDialect() {
return new ShiroDialect();
}
/**
* ShiroFilterFactoryBean 处理拦截资源文件问题。
* 注意：单独一个ShiroFilterFactoryBean配置是或报错的，因为在
* 初始化ShiroFilterFactoryBean的时候需要注入：SecurityManager
*
Filter Chain定义说明
1、一个URL可以配置多个Filter，使用逗号分隔
2、当设置多个过滤器时，全部验证通过，才视为通过
3、部分过滤器可指定参数，如perms，roles
*
*/
@Bean
public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){
System.out.println("ShiroConfiguration.shirFilter()");
ShiroFilterFactoryBean shiroFilterFactoryBean  = new ShiroFilterFactoryBean();

// 必须设置 SecurityManager
shiroFilterFactoryBean.setSecurityManager(securityManager);
// 如果不设置默认会自动寻找Web工程根目录下的"/login.jsp"页面
shiroFilterFactoryBean.setLoginUrl("/login");
// 登录成功后要跳转的链接
shiroFilterFactoryBean.setSuccessUrl("/usersPage");
//未授权界面;
shiroFilterFactoryBean.setUnauthorizedUrl("/403");
//拦截器.
Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();

//配置退出 过滤器,其中的具体的退出代码Shiro已经替我们实现了
filterChainDefinitionMap.put("/logout", "logout");
filterChainDefinitionMap.put("/css/**","anon");
filterChainDefinitionMap.put("/js/**","anon");
filterChainDefinitionMap.put("/img/**","anon");
filterChainDefinitionMap.put("/font-awesome/**","anon");
//<!-- 过滤链定义，从上向下顺序执行，一般将 /**放在最为下边 -->:这是一个坑呢，一不小心代码就不好使了;
//<!-- authc:所有url都必须认证通过才可以访问; anon:所有url都都可以匿名访问-->
//自定义加载权限资源关系
List<Resources> resourcesList = resourcesService.queryAll();
for(Resources resources:resourcesList){

if (StringUtil.isNotEmpty(resources.getResurl())) {
String permission = "perms[" + resources.getResurl()+ "]";
filterChainDefinitionMap.put(resources.getResurl(),permission);
}
}
filterChainDefinitionMap.put("/**", "authc");

shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
return shiroFilterFactoryBean;
}
@Bean
public SecurityManager securityManager(){
DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
//设置realm.
securityManager.setRealm(myShiroRealm());
// 自定义缓存实现 使用redis
//securityManager.setCacheManager(cacheManager());
// 自定义session管理 使用redis
securityManager.setSessionManager(sessionManager());
return securityManager;
}

@Bean
public MyShiroRealm myShiroRealm(){
MyShiroRealm myShiroRealm = new MyShiroRealm();
myShiroRealm.setCredentialsMatcher(hashedCredentialsMatcher());
return myShiroRealm;
}

/**
* 凭证匹配器     * （由于我们的密码校验交给Shiro的SimpleAuthenticationInfo进行处理了
*  所以我们需要修改下doGetAuthenticationInfo中的代码;
* ）
* @return
*/
@Bean
public HashedCredentialsMatcher hashedCredentialsMatcher(){
HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();

hashedCredentialsMatcher.setHashAlgorithmName("md5");//散列算法:这里使用MD5算法;
hashedCredentialsMatcher.setHashIterations(2);//散列的次数，比如散列两次，相当于 md5(md5(""));

return hashedCredentialsMatcher;
}
/**
*  开启shiro aop注解支持.
*  使用代理方式;所以需要开启代码支持;
* @param securityManager     * @return
*/
@Bean
public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager){
AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
return authorizationAttributeSourceAdvisor;
}
/**
* 配置shiro redisManager
* 使用的是shiro-redis开源插件
* @return
*/
public RedisManager redisManager() {
RedisManager redisManager = new RedisManager();
redisManager.setHost(host);
redisManager.setPort(port);
redisManager.setExpire(1800);// 配置缓存过期时间
redisManager.setTimeout(timeout);
// redisManager.setPassword(password);
return redisManager;
}

/**
* cacheManager 缓存 redis实现
* 使用的是shiro-redis开源插件
* @return
*/
public RedisCacheManager cacheManager() {
RedisCacheManager redisCacheManager = new RedisCacheManager();
redisCacheManager.setRedisManager(redisManager());
return redisCacheManager;
}
/**
* RedisSessionDAO shiro sessionDao层的实现 通过redis
* 使用的是shiro-redis开源插件
*/
@Bean
public RedisSessionDAO redisSessionDAO() {
RedisSessionDAO redisSessionDAO = new RedisSessionDAO();
redisSessionDAO.setRedisManager(redisManager());
return redisSessionDAO;
}
/**
* shiro session的管理
*/
@Bean
public DefaultWebSessionManager sessionManager() {
DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();
sessionManager.setSessionDAO(redisSessionDAO());
return sessionManager;
}
}

配置自定义Realm

package com.study.shiro;
import com.study.model.Resources;
import com.study.model.User;
import com.study.service.ResourcesService;
import com.study.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.util.ByteSource;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by yangqj on 2017/4/21.
*/
public class MyShiroRealm extends AuthorizingRealm {

@Resource
private UserService userService;

@Resource
private ResourcesService resourcesService;
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
User user= (User) SecurityUtils.getSubject().getPrincipal();//User{id=1, username='admin', password='3ef7164d1f6167cb9f2658c07d3c2f0a', enable=1}
Map<String,Object> map = new HashMap<String,Object>();
map.put("userid",user.getId());
List<Resources> resourcesList = resourcesService.loadUserResources(map);
// 权限信息对象info,用来存放查出的用户的所有的角色（role）及权限（permission）
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
for(Resources resources: resourcesList){
info.addStringPermission(resources.getResurl());
}
return info;
}
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
//获取用户的输入的账号.
String username = (String)token.getPrincipal();
User user = userService.selectByUsername(username);
if(user==null) throw new UnknownAccountException();
if (0==user.getEnable()) {
throw new LockedAccountException(); // 帐号锁定
}
SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
user, //用户
user.getPassword(), //密码
ByteSource.Util.bytes(username),
getName()  //realm name
);
// 当验证都通过后，把用户信息放在session里
Session session = SecurityUtils.getSubject().getSession();
session.setAttribute("userSession", user);
session.setAttribute("userSessionId", user.getId());
return authenticationInfo;
}

}

认证：shiro的主要模块分别就是授权和认证和会话管理。我们先讲认证。认证就是验证用户。比如用户登录的时候验证账号密码是否正确。我们可以把对登录的验证交给shiro。我们执行要查询相应的用户信息，并传给shiro。如下代码则为用户登录：

@RequestMapping(value="/login",method=RequestMethod.POST)
public String login(HttpServletRequest request, User user, Model model){
if (StringUtils.isEmpty(user.getUsername()) || StringUtils.isEmpty(user.getPassword())) {
request.setAttribute("msg", "用户名或密码不能为空！");
return "login";
}
Subject subject = SecurityUtils.getSubject();
UsernamePasswordToken token=new UsernamePasswordToken(user.getUsername(),user.getPassword());
try {
subject.login(token);
return "redirect:usersPage";
}catch (LockedAccountException lae) {
token.clear();
request.setAttribute("msg", "用户已经被锁定不能登录，请与管理员联系！");
return "login";
} catch (AuthenticationException e) {
token.clear();
request.setAttribute("msg", "用户或密码不正确！");
return "login";
}
}

可见用户登陆的代码主要就是 subject.login(token);调用后就会进去我们自定义的realm中的doGetAuthenticationInfo()方法。

//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
//获取用户的输入的账号.
String username = (String)token.getPrincipal();
User user = userService.selectByUsername(username);
if(user==null) throw new UnknownAccountException();
if (0==user.getEnable()) {
throw new LockedAccountException(); // 帐号锁定
}
SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
user, //用户
user.getPassword(), //密码
ByteSource.Util.bytes(username),
getName()  //realm name
);
// 当验证都通过后，把用户信息放在session里
Session session = SecurityUtils.getSubject().getSession();
session.setAttribute("userSession", user);
session.setAttribute("userSessionId", user.getId());        return authenticationInfo;
}

而我们在ShiroConfig中配置了凭证匹配器：

@Bean
public MyShiroRealm myShiroRealm(){
MyShiroRealm myShiroRealm = new MyShiroRealm();
myShiroRealm.setCredentialsMatcher(hashedCredentialsMatcher());
return myShiroRealm;
}

@Bean    public HashedCredentialsMatcher hashedCredentialsMatcher(){
HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();

hashedCredentialsMatcher.setHashAlgorithmName("md5");//散列算法:这里使用MD5算法;
hashedCredentialsMatcher.setHashIterations(2);//散列的次数，比如散列两次，相当于 md5(md5(""));
return hashedCredentialsMatcher;
}

所以在认证时的密码是加过密的，使用md5散发将密码与盐值组合加密两次。则我们在增加用户的时候，对用户的密码则要进过相同规则的加密才行。添加用户代码如下：

@RequestMapping(value = "/add")
public String add(User user) {
User u = userService.selectByUsername(user.getUsername());
if(u != null)
return "error";
try {
user.setEnable(1);
PasswordHelper passwordHelper = new PasswordHelper();
passwordHelper.encryptPassword(user);
userService.save(user);
return "success";
} catch (Exception e) {
e.printStackTrace();
return "fail";
}
}

PasswordHelper：

package com.study.util;
import com.study.model.User;
import org.apache.shiro.crypto.RandomNumberGenerator;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.SimpleHash;import org.apache.shiro.util.ByteSource;
public class PasswordHelper {
//private RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();
private String algorithmName = "md5";
private int hashIterations = 2;

public void encryptPassword(User user) {
//String salt=randomNumberGenerator.nextBytes().toHex();
String newPassword = new SimpleHash(algorithmName, user.getPassword(),  ByteSource.Util.bytes(user.getUsername()), hashIterations).toHex();
//String newPassword = new SimpleHash(algorithmName, user.getPassword()).toHex();
user.setPassword(newPassword);

}
public static void main(String[] args) {
PasswordHelper passwordHelper = new PasswordHelper();
User user = new User();
user.setUsername("admin");
user.setPassword("admin");
passwordHelper.encryptPassword(user);
System.out.println(user);
}
}

授权：接下来讲下授权。在自定义relalm中的代码为：

//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
User user= (User) SecurityUtils.getSubject().getPrincipal();//User{id=1, username='admin', password='3ef7164d1f6167cb9f2658c07d3c2f0a', enable=1}
Map<String,Object> map = new HashMap<String,Object>();
map.put("userid",user.getId());
List<Resources> resourcesList = resourcesService.loadUserResources(map);        // 权限信息对象info,用来存放查出的用户的所有的角色（role）及权限（permission）
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
for(Resources resources: resourcesList){
info.addStringPermission(resources.getResurl());
}
return info;
}

从以上代码中可以看出来，我根据用户id查询出用户的权限，放入SimpleAuthorizationInfo。关联表user_role，role_resources，resources，三张表，根据用户所拥有的角色，角色所拥有的权限，查询出分配给该用户的所有权限的url。当访问的链接中配置在shiro中时，或者使用shiro标签，shiro权限注解时，则会访问该方法，判断该用户是否拥有相应的权限。在ShiroConfig中有如下代码：

@Bean
public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){
System.out.println("ShiroConfiguration.shirFilter()");
ShiroFilterFactoryBean shiroFilterFactoryBean  = new ShiroFilterFactoryBean();

// 必须设置 SecurityManager
shiroFilterFactoryBean.setSecurityManager(securityManager);
// 如果不设置默认会自动寻找Web工程根目录下的"/login.jsp"页面
shiroFilterFactoryBean.setLoginUrl("/login");
// 登录成功后要跳转的链接
shiroFilterFactoryBean.setSuccessUrl("/usersPage");
//未授权界面;
shiroFilterFactoryBean.setUnauthorizedUrl("/403");
//拦截器.
Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();
//配置退出 过滤器,其中的具体的退出代码Shiro已经替我们实现了
filterChainDefinitionMap.put("/logout", "logout");
filterChainDefinitionMap.put("/css/**","anon");
filterChainDefinitionMap.put("/js/**","anon");
filterChainDefinitionMap.put("/img/**","anon");
filterChainDefinitionMap.put("/font-awesome/**","anon");
//<!-- 过滤链定义，从上向下顺序执行，一般将 /**放在最为下边 -->:这是一个坑呢，一不小心代码就不好使了;
//<!-- authc:所有url都必须认证通过才可以访问; anon:所有url都都可以匿名访问-->
//自定义加载权限资源关系
List<Resources> resourcesList = resourcesService.queryAll();         for(Resources resources:resourcesList){

if (StringUtil.isNotEmpty(resources.getResurl())) {
String permission = "perms[" + resources.getResurl()+ "]";
filterChainDefinitionMap.put(resources.getResurl(),permission);
}
}
filterChainDefinitionMap.put("/**", "authc");

shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
return shiroFilterFactoryBean;
}

该代码片段为配置shiro的过滤器。以上代码将静态文件设置为任何权限都可访问，然后

List<Resources> resourcesList = resourcesService.queryAll();
for(Resources resources:resourcesList){

if (StringUtil.isNotEmpty(resources.getResurl())) {     String permission = "perms[" + resources.getResurl()+ "]";
filterChainDefinitionMap.put(resources.getResurl(),permission);
}
}

在数据中查询所有的资源，将该资源的url当作key，配置拥有该url权限的用户才可访问该url。最后加入 filterChainDefinitionMap.put(“/*”, “authc”);表示其他没有配置的链接都需要认证才可访问。注意这个要放最后面，因为shiro的匹配是从上往下，如果匹配到就不继续匹配了，所以把 /放到最前面，则 后面的链接都无法匹配到了。而这段代码是在项目启动的时候加载的。加载的数据是放到内存中的。但是当权限增加或者删除时，正常情况下不会重新启动来，重新加载权限。所以需要调用以下代码的updatePermission()方法来重新加载权限。其实下面的代码有些重复了，可以稍微调整下，我就先这么写了。

package com.study.shiro;
import com.github.pagehelper.util.StringUtil;
import com.study.model.Resources;
import com.study.model.User;
import com.study.service.ResourcesService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.mgt.RealmSecurityManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.subject.SimplePrincipalCollection;
import org.apache.shiro.subject.support.DefaultSubjectContext;
import org.apache.shiro.web.filter.mgt.DefaultFilterChainManager;
import org.apache.shiro.web.filter.mgt.PathMatchingFilterChainResolver;
import org.apache.shiro.web.servlet.AbstractShiroFilter;import org.crazycake.shiro.RedisSessionDAO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;
/**
* Created by yangqj on 2017/4/30.
*/
@Service
public class ShiroService {
@Autowired
private ShiroFilterFactoryBean shiroFilterFactoryBean;
@Autowired
private ResourcesService resourcesService;
@Autowired
private RedisSessionDAO redisSessionDAO;
/**
* 初始化权限
*/
public Map<String, String> loadFilterChainDefinitions() {
// 权限控制map.从数据库获取
Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
filterChainDefinitionMap.put("/logout", "logout");
filterChainDefinitionMap.put("/css/**","anon");
filterChainDefinitionMap.put("/js/**","anon");
filterChainDefinitionMap.put("/img/**","anon");
filterChainDefinitionMap.put("/font-awesome/**","anon");
List<Resources> resourcesList = resourcesService.queryAll();
for(Resources resources:resourcesList){

if (StringUtil.isNotEmpty(resources.getResurl())) {
String permission = "perms[" + resources.getResurl()+ "]";
filterChainDefinitionMap.put(resources.getResurl(),permission);
}
}
filterChainDefinitionMap.put("/**", "authc");
return filterChainDefinitionMap;
}
/**     * 重新加载权限     */
public void updatePermission() {

synchronized (shiroFilterFactoryBean) {

AbstractShiroFilter shiroFilter = null;
try {
shiroFilter = (AbstractShiroFilter) shiroFilterFactoryBean
.getObject();
} catch (Exception e) {
throw new RuntimeException(
"get ShiroFilter from shiroFilterFactoryBean error!");
}

PathMatchingFilterChainResolver filterChainResolver = (PathMatchingFilterChainResolver) shiroFilter
.getFilterChainResolver();
DefaultFilterChainManager manager = (DefaultFilterChainManager) filterChainResolver
.getFilterChainManager();

// 清空老的权限控制
manager.getFilterChains().clear();

shiroFilterFactoryBean.getFilterChainDefinitionMap().clear();
shiroFilterFactoryBean
.setFilterChainDefinitionMap(loadFilterChainDefinitions());
// 重新构建生成
Map<String, String> chains = shiroFilterFactoryBean
.getFilterChainDefinitionMap();
for (Map.Entry<String, String> entry : chains.entrySet()) {
String url = entry.getKey();
String chainDefinition = entry.getValue().trim()
.replace(" ", "");
manager.createChain(url, chainDefinition);
}

System.out.println("更新权限成功！！");
}
}

}

会话管理这个例子使用了redis保存session。这样可以实现集群的session共享。在ShiroConfig中有代码：

@Bean
public SecurityManager securityManager(){
DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
//设置realm.
securityManager.setRealm(myShiroRealm());
// 自定义缓存实现 使用redis
//securityManager.setCacheManager(cacheManager());
// 自定义session管理 使用redis
securityManager.setSessionManager(sessionManager());
return securityManager;
}

配置了自定义session，网上已经有大神实现了 使用redis 自定义session管理，直接拿来用，引入包

<dependency>
<groupId>org.crazycake</groupId>
<artifactId>shiro-redis</artifactId>
<version>2.4.2.1-RELEASE</version>
</dependency>

然后再配置：

/**
* 配置shiro redisManager
* 使用的是shiro-redis开源插件
* @return
*/
public RedisManager redisManager() {
RedisManager redisManager = new RedisManager();
redisManager.setHost(host);
redisManager.setPort(port);
redisManager.setExpire(1800);// 配置缓存过期时间
redisManager.setTimeout(timeout);
// redisManager.setPassword(password);
return redisManager;
}
/**
* cacheManager 缓存 redis实现
* 使用的是shiro-redis开源插件
* @return
*/
public RedisCacheManager cacheManager() {
RedisCacheManager redisCacheManager = new RedisCacheManager();
redisCacheManager.setRedisManager(redisManager());
return redisCacheManager;
}

/**
* RedisSessionDAO shiro sessionDao层的实现 通过redis
* 使用的是shiro-redis开源插件
*/
@Bean
public RedisSessionDAO redisSessionDAO() {
RedisSessionDAO redisSessionDAO = new RedisSessionDAO();
redisSessionDAO.setRedisManager(redisManager());
return redisSessionDAO;
}
/**
* shiro session的管理
*/
@Bean
public DefaultWebSessionManager sessionManager() {
DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();
sessionManager.setSessionDAO(redisSessionDAO());
return sessionManager;
}

RedisConfig：

package com.study.config;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
/**
* Created by yangqj on 2017/4/30. */@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {    @Value("${spring.redis.host}")
private String host;

@Value("${spring.redis.port}")
private int port;

@Value("${spring.redis.timeout}")
private int timeout;
@Value("${spring.redis.pool.max-idle}")
private int maxIdle;

@Value("${spring.redis.pool.max-wait}")
private long maxWaitMillis;

@Bean
public JedisPool redisPoolFactory() {
Logger.getLogger(getClass()).info("JedisPool注入成功！！");
Logger.getLogger(getClass()).info("redis地址：" + host + ":" + port);
JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
jedisPoolConfig.setMaxIdle(maxIdle);
jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout);
return jedisPool;
}
}

配置文件 application.properties中加入：

#redis
# Redis服务器地址
spring.redis.host= localhost
# Redis服务器连接端口
spring.redis.port= 6379
# 连接池中的最大空闲连接
spring.redis.pool.max-idle= 8
# 连接池中的最小空闲连接
spring.redis.pool.min-idle= 0
# 连接池最大连接数（使用负值表示没有限制）
spring.redis.pool.max-active= 8
# 连接池最大阻塞等待时间（使用负值表示没有限制）
spring.redis.pool.max-wait= -1
# 连接超时时间（毫秒）spring.redis.timeout= 0

当然运行的时候要先启动redis。将自己的redis配置在以上配置中。这样session就存在redis中了。上面ShiroConfig中的securityManager()方法中，我把

//securityManager.setCacheManager(cacheManager());

这行代码注了，是这样的，因为每次在需要验证的地方，比如在subject.hasRole(“admin”) 或 subject.isPermitted(“admin”)、@RequiresRoles(“admin”) 、 shiro:hasPermission=”/users/add”的时候都会调用MyShiroRealm中的doGetAuthorizationInfo()。但是以为这些信息不是经常变的，所以有必要进行缓存。把这行代码的注释打开，的时候都会调用MyShiroRealm中的doGetAuthorizationInfo()的返回结果会被redis缓存。但是这里稍微有个小问题，就是在刚修改用户的权限时，无法立即失效。本来我是使用了ShiroService中的clearUserAuthByUserId()想清除当前session存在的用户的权限缓存，但是没有效果。不知道什么原因。希望哪个大神看到后帮忙弄个解决方法。所以我干脆就把doGetAuthorizationInfo()的返回结果通过spring cache的方式加入缓存。

@Cacheable(cacheNames="resources",key="#map['userid'].toString()+#map['type']")    public List<Resources> loadUserResources(Map<String, Object> map) {
return resourcesMapper.loadUserResources(map);
}

这样也可以实现，然后在修改权限时加上注解

@CacheEvict(cacheNames="resources", allEntries=true)

这样修改权限后可以立即生效。其实我感觉这样不好，因为清楚了我是清除了所有用户的权限缓存，其实只要修改当前session在线中被修改权限的用户就行了。 先这样吧，以后再研究下，修改得更好一点。按钮控制在前端页面，对按钮进行细粒度权限控制，只需要在按钮上加上shiro:hasPermission

<button shiro:hasPermission="/users/add" type="button"  onclick="$('#addUser').modal();" class="btn btn-info" >新增</button>

这里的参数就是我们在ShiroConfig-shirFilter()权限加载时的过滤器 中的value，也就是资源的url。

filterChainDefinitionMap.put(resources.getResurl(),permission);

8.效果图

9.运行、下载

下载项目后运行resources下的shiro.sql文件。需要运行redis后运行项目。访问http://localhost:8080/ 账号密码：admin admin 或user1 user1.新增的用户也可以登录。github下载地址：https://github.com/lovelyCoder/springboot-shiro转载请标明出处：http://blog.csdn.net/poorCoder_/article/details/71374002[/code]

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