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>1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191204.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;
}
}12345678910111213141516171819202122232425262728293031323334353637在application.properties中加入：
# 数据源基础配置spring.datasource.type=com.alibaba.druid.pool.DruidDataSourcespring.datasource.driver-class-name=com.mysql.jdbc.Driverspring.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=1spring.datasource.minIdle=1spring.datasource.maxActive=201234567891011
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=falsemapper.identity=MYSQL pagehelper.helperDialect=mysql pagehelper.reasonable=truepagehelper.supportMethodsArguments=truepagehelper.params=count\=countSql123456789
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:
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> {}1234567891011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 refreshspring.thymeleaf.cache=falsespring.thymeleaf.mode=LEGACYHTML512345678910
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>12345
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}" />1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}" />1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>123
主体页面映入方式：
<div th:include="common/top :: top"></div>1
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.
*/@Configurationpublic 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;
}
}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208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;
}
}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172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";
}
}123456789101112131415161718192021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;
}12345678910111213141516171819202122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;
}12345678910111213141516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";
}
}12345678910111213141516PasswordHelper：
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);
}
}12345678910111213141516171819202122232425262728293031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;
}1234567891011121314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;
}12345678910111213141516171819202122232425262728293031323334353637383940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);
}
}12345678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！！");
}
}
}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899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;
}1234567891011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> 123456
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;
}1234567891011121314151617181920212223242526272829303132333435363738394041424344454647RedisConfig：
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@EnableCachingpublic 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;
}
}1234567891011121314151617181920212223242526272829303132333435363738394041424344454647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= 0123456789101112131415
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());1
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);
}1234这样也可以实现，然后在修改权限时加上注解
@CacheEvict(cacheNames="resources", allEntries=true)1
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>1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);1
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