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

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
2.表結構
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
還是是用標準的5張表來展現權限。如下圖:image
分別爲用戶表,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"&gt;
<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.br/>*/
    @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
    配置好後,運行項目訪問http://localhost:8080/druid/ 輸入配置的賬號密碼admin,123456進入:
    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
    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> {
    }
    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註釋了的,因爲springboot會根據約定俗成的方式幫我們配置好。所以上面註釋部分是springboot自動配置的,如果需要自定義配置,只需要修改上註釋部分即可。
    後兩行沒有註釋的部分,spring.thymeleaf.cache=false表示關閉緩存,這樣修改文件後不需要重新啓動,緩存默認是開啓的,所以指定爲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後報一堆的語法錯誤,後來沒辦法,使用弱語法校驗,所以加入配置spring.thymeleaf.mode=LEGACYHTML5。加入這個配置後還需要在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後,就可以使用thymeleaf了
    <link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />
    不過這個項目因爲使用了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。爲什麼這樣可以訪問到該文件,也是因爲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;

/**

}
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;

/**

}
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。如下代碼則爲用戶登錄:

@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", "用戶名或密碼不能爲空!");
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,請與管理員聯繫!");
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);調用後就會進去我們自定義的realm中的doGetAuthenticationInfo()方法。br/>//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
);
// 當驗證都通過後,把用戶信息放在session裏
Session session = SecurityUtils.getSubject().getSession();
session.setAttribute("userSession", user);
session.setAttribute("userSessionId", user.getId());
return authenticationInfo;
br/>}
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:這裏使用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中的代碼爲:

//授權br/>@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標籤,shiro權限註解時,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");
    // 登錄成功後要跳轉的鏈接
    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 /**放在最爲下邊 -->:這是一個坑呢,一不小心代碼就不好使了;
    //<!-- authc:所有url都必須認證通過纔可以訪問; anon:所有url都都可以匿名訪問-->
    //自定義加載權限資源關係
    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;
}
    該代碼片段爲配置shiro的過濾器。以上代碼將靜態文件設置爲任何權限都可訪問,然後
  List&lt;Resources&gt; 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權限的用戶纔可訪問該url。 

最後加入 filterChainDefinitionMap.put(“/*”, “authc”);表示其他沒有配置的鏈接都需要認證纔可訪問。注意這個要放最後面,因爲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 後面的鏈接都無法匹配到了。
而這段代碼是在項目啓動的時候加載的。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啓動來,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複了,可以稍微調整下,我就先這麼寫了。

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.br/>*/
    @Service
    public class ShiroService {
    br/>@Autowired
    private ShiroFilterFactoryBean shiroFilterFactoryBean;
    br/>@Autowired
    private ResourcesService resourcesService;
    br/>@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。這樣可以實現集羣的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>
然後再配置:
/**

  • 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;
}
    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

連接池中的最大空閒連接

spring.redis.pool.max-idle= 8

連接池中的最小空閒連接

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啓動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,因爲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()。但是以爲這些信息不是經常變的,所以有必要進行緩存。把這行代碼的註釋打開,的時候都會調用MyShiroRealm中的doGetAuthorizationInfo()的返回結果會被redis緩存。但是這裏稍微有個小問題,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。不知道什麼原因。希望哪個大神看到後幫忙弄個解決方法。所以我乾脆就把doGetAuthorizationInfo()的返回結果通過spring cache的方式加入緩存。br/>@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,然後在修改權限時加上註解
@CacheEvict(cacheNames="resources", allEntries=true)
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>
這裏的參數就是我們在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
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
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

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