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<span class="link_title"><a href="/poorcoder_/article/details/71374002">
SpringBoot整合mybatis、shiro、redis實現基於數據庫的細粒度動態權限管理系統實例
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1.前言
本文主要介紹使用SpringBoot與shiro實現基於數據庫的細粒度動態權限管理系統實例。
使用技術：SpringBoot、mybatis、shiro、thymeleaf、pagehelper、Mapper插件、druid、dataTables、ztree、jQuery
開發工具：intellij idea
數據庫：mysql、redis
基本上是基於使用SpringSecurity的demo上修改而成，地址 http://blog.csdn.net/poorcoder_/article/details/70231779
2.表結構
還是是用標准的5張表來展現權限。如下圖：
分別為用戶表，角色表，資源表，用戶角色表，角色資源表。在這個demo中使用了mybatis-generator自動生成代碼。運行mybatis-generator:generate -e 根據數據庫中的表，生成 相應的model,mapper單表的增刪改查。不過如果是導入本項目的就別運行這個命令了。新增表的話，也要修改mybatis-generator-config.xml中的tableName，指定表名再運行。
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/*");
//登錄查看信息的賬號密碼.
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：
# 數據源基礎配置
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
# 連接池配置
# 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，運行項目訪問http://localhost:8080/druid/ 輸入配置的賬號密碼admin,123456進入：
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
將相應的路徑改成項目包所在的路徑即可。配置文件中可以看出來還加入了pagehelper 和Mapper插件。如果不需要，把上面配置文件中的 pagehelper刪除。
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> {
}
對於Springboot整合mybatis可以參考https://github.com/abel533/MyBatis-Spring-Boot
6.thymeleaf配置
thymeleaf是springboot官方推薦的，所以來試一下。
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
可以看到其實上面都是注釋了的，因為springboot會根據約定俗成的方式幫我們配置好。所以上面注釋部分是springboot自動配置的，如果需要自定義配置，只需要修改上注釋部分即可。
后兩行沒有注釋的部分，spring.thymeleaf.cache=false表示關閉緩存，這樣修改文件后不需要重新啟動，緩存默認是開啟的，所以指定為false。但是在intellij idea中還需要按Ctrl + Shift + F9.
對於spring.thymeleaf.mode=LEGACYHTML5。thymeleaf對html中的語法要求非常嚴格，像我從網上找的模板，使用thymeleaf后報一堆的語法錯誤，后來沒辦法，使用弱語法校驗，所以加入配置spring.thymeleaf.mode=LEGACYHTML5。加入這個配置后還需要在maven中加入
<dependency>
<groupId>net.sourceforge.nekohtml</groupId>
<artifactId>nekohtml</artifactId>
<version>1.9.22</version>
</dependency>
否則會報錯的。
在前端頁面的頭部加入一下配置后，就可以使用thymeleaf了
<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />
不過這個項目因為使用了datatables都是使用jquery 的ajax來訪問數據與處理數據，所以用到的thymeleaf語法非常少，基本上可以參考的就是js即css的導入和類似於jsp的include功能的部分頁面引入。
對於靜態文件的引入：
<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />
而文件在項目中的位置是static-css-bootstrap.min.css。為什么這樣可以訪問到該文件，也是因為springboot對於靜態文件會自動查找/static public、/resources、/META-INF/resources下的文件。所以不需要加static.
頁面引入：
局部頁面如下:
<div th:fragment="top">
...
</div>
主體頁面映入方式：
<div th:include="common/top :: top"></div>
inclide=”文件路徑::局部代碼片段名稱”
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，為了在thymeleaf里使用shiro的標簽的bean
* @return
*/
@Bean
public ShiroDialect shiroDialect() {
return new ShiroDialect();
}
/**
* ShiroFilterFactoryBean 處理攔截資源文件問題。
* 注意：單獨一個ShiroFilterFactoryBean配置是或報錯的，因為在
* 初始化ShiroFilterFactoryBean的時候需要注入：SecurityManager
*
Filter Chain定義說明
1、一個URL可以配置多個Filter，使用逗號分隔
2、當設置多個過濾器時，全部驗證通過，才視為通過
3、部分過濾器可指定參數，如perms，roles
*
*/
@Bean
public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){
System.out.println("ShiroConfiguration.shirFilter()");
ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
// 必須設置 SecurityManager
shiroFilterFactoryBean.setSecurityManager(securityManager);
// 如果不設置默認會自動尋找Web工程根目錄下的"/login.jsp"頁面
shiroFilterFactoryBean.setLoginUrl("/login");
// 登錄成功后要跳轉的鏈接
shiroFilterFactoryBean.setSuccessUrl("/usersPage");
//未授權界面;
shiroFilterFactoryBean.setUnauthorizedUrl("/403");
//攔截器.
Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();
//配置退出 過濾器,其中的具體的退出代碼Shiro已經替我們實現了
filterChainDefinitionMap.put("/logout", "logout");
filterChainDefinitionMap.put("/css/**","anon");
filterChainDefinitionMap.put("/js/**","anon");
filterChainDefinitionMap.put("/img/**","anon");
filterChainDefinitionMap.put("/font-awesome/**","anon");
//<!-- 過濾鏈定義，從上向下順序執行，一般將 /**放在最為下邊 -->:這是一個坑呢，一不小心代碼就不好使了;
//<!-- authc:所有url都必須認證通過才可以訪問; anon:所有url都都可以匿名訪問-->
//自定義加載權限資源關系
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();
//設置realm.
securityManager.setRealm(myShiroRealm());
// 自定義緩存實現 使用redis
//securityManager.setCacheManager(cacheManager());
// 自定義session管理 使用redis
securityManager.setSessionManager(sessionManager());
return securityManager;
}
@Bean
public MyShiroRealm myShiroRealm(){
MyShiroRealm myShiroRealm = new MyShiroRealm();
myShiroRealm.setCredentialsMatcher(hashedCredentialsMatcher());
return myShiroRealm;
}
/**
* 憑證匹配器 * （由於我們的密碼校驗交給Shiro的SimpleAuthenticationInfo進行處理了
* 所以我們需要修改下doGetAuthenticationInfo中的代碼;
* ）
* @return
*/
@Bean
public HashedCredentialsMatcher hashedCredentialsMatcher(){
HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();
hashedCredentialsMatcher.setHashAlgorithmName("md5");//散列算法:這里使用MD5算法;
hashedCredentialsMatcher.setHashIterations(2);//散列的次數，比如散列兩次，相當於 md5(md5(""));
return hashedCredentialsMatcher;
}
/**
* 開啟shiro aop注解支持.
* 使用代理方式;所以需要開啟代碼支持;
* @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開源插件
* @return
*/
public RedisManager redisManager() {
RedisManager redisManager = new RedisManager();
redisManager.setHost(host);
redisManager.setPort(port);
redisManager.setExpire(1800);// 配置緩存過期時間
redisManager.setTimeout(timeout);
// redisManager.setPassword(password);
return redisManager;
}
/**
* cacheManager 緩存 redis實現
* 使用的是shiro-redis開源插件
* @return
*/
public RedisCacheManager cacheManager() {
RedisCacheManager redisCacheManager = new RedisCacheManager();
redisCacheManager.setRedisManager(redisManager());
return redisCacheManager;
}
/**
* RedisSessionDAO shiro sessionDao層的實現 通過redis
* 使用的是shiro-redis開源插件
*/
@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;
}
}
配置自定義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;
//授權
@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);
// 權限信息對象info,用來存放查出的用戶的所有的角色（role）及權限（permission）
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
for(Resources resources: resourcesList){
info.addStringPermission(resources.getResurl());
}
return info;
}
//認證
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
//獲取用戶的輸入的賬號.
String username = (String)token.getPrincipal();
User user = userService.selectByUsername(username);
if(user==null) throw new UnknownAccountException();
if (0==user.getEnable()) {
throw new LockedAccountException(); // 帳號鎖定
}
SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
user, //用戶
user.getPassword(), //密碼
ByteSource.Util.bytes(username),
getName() //realm name
);
// 當驗證都通過后，把用戶信息放在session里
Session session = SecurityUtils.getSubject().getSession();
session.setAttribute("userSession", user);
session.setAttribute("userSessionId", user.getId());
return authenticationInfo;
}
}
認證：
shiro的主要模塊分別就是授權和認證和會話管理。
我們先講認證。認證就是驗證用戶。比如用戶登錄的時候驗證賬號密碼是否正確。
我們可以把對登錄的驗證交給shiro。我們執行要查詢相應的用戶信息，並傳給shiro。如下代碼則為用戶登錄：
@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", "用戶名或密碼不能為空！");
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", "用戶已經被鎖定不能登錄，請與管理員聯系！");
return "login";
} catch (AuthenticationException e) {
token.clear();
request.setAttribute("msg", "用戶或密碼不正確！");
return "login";
}
}
可見用戶登陸的代碼主要就是 subject.login(token);調用后就會進去我們自定義的realm中的doGetAuthenticationInfo()方法。
//認證
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
//獲取用戶的輸入的賬號.
String username = (String)token.getPrincipal();
User user = userService.selectByUsername(username);
if(user==null) throw new UnknownAccountException();
if (0==user.getEnable()) {
throw new LockedAccountException(); // 帳號鎖定
}
SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
user, //用戶
user.getPassword(), //密碼
ByteSource.Util.bytes(username),
getName() //realm name
);
// 當驗證都通過后，把用戶信息放在session里
Session session = SecurityUtils.getSubject().getSession();
session.setAttribute("userSession", user);
session.setAttribute("userSessionId", user.getId());
return authenticationInfo;
}
而我們在ShiroConfig中配置了憑證匹配器：
@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:這里使用MD5算法;
hashedCredentialsMatcher.setHashIterations(2);//散列的次數，比如散列兩次，相當於 md5(md5(""));
return hashedCredentialsMatcher;
}
所以在認證時的密碼是加過密的，使用md5散發將密碼與鹽值組合加密兩次。則我們在增加用戶的時候，對用戶的密碼則要進過相同規則的加密才行。
添加用戶代碼如下：
@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);
}
}
授權：
接下來講下授權。在自定義relalm中的代碼為：
//授權
@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);
// 權限信息對象info,用來存放查出的用戶的所有的角色（role）及權限（permission）
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
for(Resources resources: resourcesList){
info.addStringPermission(resources.getResurl());
}
return info;
}
從以上代碼中可以看出來，我根據用戶id查詢出用戶的權限，放入SimpleAuthorizationInfo。關聯表user_role，role_resources，resources，三張表，根據用戶所擁有的角色，角色所擁有的權限，查詢出分配給該用戶的所有權限的url。當訪問的鏈接中配置在shiro中時，或者使用shiro標簽，shiro權限注解時，則會訪問該方法，判斷該用戶是否擁有相應的權限。
在ShiroConfig中有如下代碼：
@Bean
public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){
System.out.println("ShiroConfiguration.shirFilter()");
ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
// 必須設置 SecurityManager
shiroFilterFactoryBean.setSecurityManager(securityManager);
// 如果不設置默認會自動尋找Web工程根目錄下的"/login.jsp"頁面
shiroFilterFactoryBean.setLoginUrl("/login");
// 登錄成功后要跳轉的鏈接
shiroFilterFactoryBean.setSuccessUrl("/usersPage");
//未授權界面;
shiroFilterFactoryBean.setUnauthorizedUrl("/403");
//攔截器.
Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();
//配置退出 過濾器,其中的具體的退出代碼Shiro已經替我們實現了
filterChainDefinitionMap.put("/logout", "logout");
filterChainDefinitionMap.put("/css/**","anon");
filterChainDefinitionMap.put("/js/**","anon");
filterChainDefinitionMap.put("/img/**","anon");
filterChainDefinitionMap.put("/font-awesome/**","anon");
//<!-- 過濾鏈定義，從上向下順序執行，一般將 /**放在最為下邊 -->:這是一個坑呢，一不小心代碼就不好使了;
//<!-- authc:所有url都必須認證通過才可以訪問; anon:所有url都都可以匿名訪問-->
//自定義加載權限資源關系
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;
}
該代碼片段為配置shiro的過濾器。以上代碼將靜態文件設置為任何權限都可訪問，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);
}
}
在數據中查詢所有的資源，將該資源的url當作key，配置擁有該url權限的用戶才可訪問該url。
最后加入 filterChainDefinitionMap.put(“/*”, “authc”);表示其他沒有配置的鏈接都需要認證才可訪問。注意這個要放最后面，因為shiro的匹配是從上往下，如果匹配到就不繼續匹配了，所以把 /放到最前面，則 后面的鏈接都無法匹配到了。
而這段代碼是在項目啟動的時候加載的。加載的數據是放到內存中的。但是當權限增加或者刪除時，正常情況下不會重新啟動來，重新加載權限。所以需要調用以下代碼的updatePermission()方法來重新加載權限。其實下面的代碼有些重復了，可以稍微調整下，我就先這么寫了。
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;
/**
* 初始化權限
*/
public Map<String, String> loadFilterChainDefinitions() {
// 權限控制map.從數據庫獲取
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;
}
/** * 重新加載權限 */
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();
// 清空老的權限控制
manager.getFilterChains().clear();
shiroFilterFactoryBean.getFilterChainDefinitionMap().clear();
shiroFilterFactoryBean
.setFilterChainDefinitionMap(loadFilterChainDefinitions());
// 重新構建生成
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("更新權限成功！！");
}
}
}
會話管理
這個例子使用了redis保存session。這樣可以實現集群的session共享。在ShiroConfig中有代碼：
@Bean
public SecurityManager securityManager(){
DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
//設置realm.
securityManager.setRealm(myShiroRealm());
// 自定義緩存實現 使用redis
//securityManager.setCacheManager(cacheManager());
// 自定義session管理 使用redis
securityManager.setSessionManager(sessionManager());
return securityManager;
}
配置了自定義session，網上已經有大神實現了 使用redis 自定義session管理，直接拿來用，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開源插件
* @return
*/
public RedisManager redisManager() {
RedisManager redisManager = new RedisManager();
redisManager.setHost(host);
redisManager.setPort(port);
redisManager.setExpire(1800);// 配置緩存過期時間
redisManager.setTimeout(timeout);
// redisManager.setPassword(password);
return redisManager;
}
/**
* cacheManager 緩存 redis實現
* 使用的是shiro-redis開源插件
* @return
*/
public RedisCacheManager cacheManager() {
RedisCacheManager redisCacheManager = new RedisCacheManager();
redisCacheManager.setRedisManager(redisManager());
return redisCacheManager;
}
/**
* RedisSessionDAO shiro sessionDao層的實現 通過redis
* 使用的是shiro-redis開源插件
*/
@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服務器地址
spring.redis.host= localhost
# Redis服務器連接端口
spring.redis.port= 6379
# 連接池中的最大空閑連接
spring.redis.pool.max-idle= 8
# 連接池中的最小空閑連接
spring.redis.pool.min-idle= 0
# 連接池最大連接數（使用負值表示沒有限制）
spring.redis.pool.max-active= 8
# 連接池最大阻塞等待時間（使用負值表示沒有限制）
spring.redis.pool.max-wait= -1
# 連接超時時間（毫秒）
spring.redis.timeout= 0
當然運行的時候要先啟動redis。將自己的redis配置在以上配置中。這樣session就存在redis中了。
上面ShiroConfig中的securityManager()方法中，我把
//securityManager.setCacheManager(cacheManager());
這行代碼注了，是這樣的，因為每次在需要驗證的地方，比如在subject.hasRole(“admin”) 或 subject.isPermitted(“admin”)、@RequiresRoles(“admin”) 、 shiro:hasPermission=”/users/add”的時候都會調用MyShiroRealm中的doGetAuthorizationInfo()。但是以為這些信息不是經常變的，所以有必要進行緩存。把這行代碼的注釋打開，的時候都會調用MyShiroRealm中的doGetAuthorizationInfo()的返回結果會被redis緩存。但是這里稍微有個小問題，就是在剛修改用戶的權限時，無法立即失效。本來我是使用了ShiroService中的clearUserAuthByUserId()想清除當前session存在的用戶的權限緩存，但是沒有效果。不知道什么原因。希望哪個大神看到后幫忙弄個解決方法。所以我干脆就把doGetAuthorizationInfo()的返回結果通過spring cache的方式加入緩存。
@Cacheable(cacheNames="resources",key="#map['userid'].toString()+#map['type']")
public List<Resources> loadUserResources(Map<String, Object> map) {
return resourcesMapper.loadUserResources(map);
}
這樣也可以實現，然后在修改權限時加上注解
@CacheEvict(cacheNames="resources", allEntries=true)
這樣修改權限后可以立即生效。其實我感覺這樣不好，因為清楚了我是清除了所有用戶的權限緩存，其實只要修改當前session在線中被修改權限的用戶就行了。 先這樣吧，以后再研究下，修改得更好一點。
按鈕控制
在前端頁面，對按鈕進行細粒度權限控制，只需要在按鈕上加上shiro:hasPermission
<button shiro:hasPermission="/users/add" type="button" onclick="$('#addUser').modal();" class="btn btn-info" >新增</button>
這里的參數就是我們在ShiroConfig-shirFilter()權限加載時的過濾器 中的value，也就是資源的url。
filterChainDefinitionMap.put(resources.getResurl(),permission);
8.效果圖
9.運行、下載
下載項目后運行resources下的shiro.sql文件。需要運行redis后運行項目。訪問http://localhost:8080/ 賬號密碼：admin admin 或user1 user1.新增的用戶也可以登錄。
github下載地址：https://github.com/lovelyCoder/springboot-shiro
轉載請標明出處：http://blog.csdn.net/poorCoder_/article/details/71374002
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