1. 程式人生 > >SpringBoot整合mybatis、shiro、redis實現基於資料庫的細粒度動態許可權管理系統例項

SpringBoot整合mybatis、shiro、redis實現基於資料庫的細粒度動態許可權管理系統例項

1.前言

本文主要介紹使用SpringBoot與shiro實現基於資料庫的細粒度動態許可權管理系統例項。
使用技術:SpringBoot、mybatis、shiro、thymeleaf、pagehelper、Mapper外掛、druid、dataTables、ztree、jQuery
開發工具:intellij idea
資料庫: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

還是是用標準的5張表來展現許可權。如下圖:image


分別為使用者表,角色表,資源表,使用者角色表,角色資源表。在這個demo中使用了mybatis-generator自動生成程式碼。執行mybatis-generator:generate -e 根據資料庫中的表,生成 相應的model,mapper單表的增刪改查。不過如果是匯入本專案的就別執行這個命令了。新增表的話,也要修改mybatis-generator-config.xml中的tableName,指定表名再執行。

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/*");
        //登入檢視資訊的賬號密碼.

        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:

# 資料來源基礎配置
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
# 連線池配置
# 初始化大小,最小,最大
spring.datasource.initialSize=1
spring.datasource.minIdle=1
spring.datasource.maxActive=20

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

將相應的路徑改成專案包所在的路徑即可。配置檔案中可以看出來還加入了pagehelper 和Mapper外掛。如果不需要,把上面配置檔案中的 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,因為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表示關閉快取,這樣修改檔案後不需要重新啟動,快取預設是開啟的,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}" />

不過這個專案因為使用了datatables都是使用jquery 的ajax來訪問資料與處理資料,所以用到的thymeleaf語法非常少,基本上可以參考的就是js即css的匯入和類似於jsp的include功能的部分頁面引入。
對於靜態檔案的引入:

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

而檔案在專案中的位置是static-css-bootstrap.min.css。為什麼這樣可以訪問到該檔案,也是因為springboot對於靜態檔案會自動查詢/static public、/resources、/META-INF/resources下的檔案。所以不需要加static.

頁面引入:
區域性頁面如下:

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

主體頁面映入方式:

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

inclide=”檔案路徑::區域性程式碼片段名稱”

7.shiro配置

配置檔案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裡使用shiro的標籤的bean
     * @return
     */
    @Bean
    public ShiroDialect shiroDialect() {
        return new ShiroDialect();
    }
    /**
     * ShiroFilterFactoryBean 處理攔截資原始檔問題。
     * 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、當設定多個過濾器時,全部驗證通過,才視為通過
     3、部分過濾器可指定引數,如perms,roles
     *
     */
    @Bean
    public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){
        System.out.println("ShiroConfiguration.shirFilter()");
        ShiroFilterFactoryBean shiroFilterFactoryBean  = new ShiroFilterFactoryBean();

        // 必須設定 SecurityManager
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        // 如果不設定預設會自動尋找Web工程根目錄下的"/login.jsp"頁面
        shiroFilterFactoryBean.setLoginUrl("/login");
        // 登入成功後要跳轉的連結
        shiroFilterFactoryBean.setSuccessUrl("/usersPage");
        //未授權介面;
        shiroFilterFactoryBean.setUnauthorizedUrl("/403");
        //攔截器.
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();

        //配置退出 過濾器,其中的具體的退出程式碼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,一不小心程式碼就不好使了;
        //<!-- 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-->
        //自定義載入許可權資源關係
        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;
    }


    @Bean
    public SecurityManager securityManager(){
        DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
        //設定realm.
        securityManager.setRealm(myShiroRealm());
        // 自定義快取實現 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中的程式碼;
     * )
     * @return
     */
    @Bean
    public HashedCredentialsMatcher hashedCredentialsMatcher(){
        HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();

        hashedCredentialsMatcher.setHashAlgorithmName("md5");//雜湊演算法:這裡使用MD5演算法;
        hashedCredentialsMatcher.setHashIterations(2);//雜湊的次數,比如雜湊兩次,相當於 md5(md5(""));

        return hashedCredentialsMatcher;
    }


    /**
     *  開啟shiro aop註解支援.
     *  使用代理方式;所以需要開啟程式碼支援;
     * @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開源外掛
     * @return
     */
    public RedisManager redisManager() {
        RedisManager redisManager = new RedisManager();
        redisManager.setHost(host);
        redisManager.setPort(port);
        redisManager.setExpire(1800);// 配置快取過期時間
        redisManager.setTimeout(timeout);
        // redisManager.setPassword(password);
        return redisManager;
    }

    /**
     * cacheManager 快取 redis實現
     * 使用的是shiro-redis開源外掛
     * @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開源外掛
     */
    @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);
        // 許可權資訊物件info,用來存放查出的使用者的所有的角色(role)及許可權(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 {
        //獲取使用者的輸入的賬號.
        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, //使用者
                user.getPassword(), //密碼
                ByteSource.Util.bytes(username),
                getName()  //realm name
        );
        // 當驗證都通過後,把使用者資訊放在session裡
        Session session = SecurityUtils.getSubject().getSession();
        session.setAttribute("userSession", user);
        session.setAttribute("userSessionId", user.getId());
        return authenticationInfo;
    }


}
認證:

shiro的主要模組分別就是授權和認證和會話管理。
我們先講認證。認證就是驗證使用者。比如使用者登入的時候驗證賬號密碼是否正確。
我們可以把對登入的驗證交給shiro。我們執行要查詢相應的使用者資訊,並傳給shiro。如下程式碼則為使用者登入:

 @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", "使用者名稱或密碼不能為空!");
            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", "使用者已經被鎖定不能登入,請與管理員聯絡!");
            return "login";
        } catch (AuthenticationException e) {
            token.clear();
            request.setAttribute("msg", "使用者或密碼不正確!");
            return "login";
        }
    }

可見使用者登陸的程式碼主要就是 subject.login(token);呼叫後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 {
        //獲取使用者的輸入的賬號.
        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, //使用者
                user.getPassword(), //密碼
                ByteSource.Util.bytes(username),
                getName()  //realm name
        );
        // 當驗證都通過後,把使用者資訊放在session裡
        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");//雜湊演算法:這裡使用MD5演算法;
        hashedCredentialsMatcher.setHashIterations(2);//雜湊的次數,比如雜湊兩次,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。則我們在增加使用者的時候,對使用者的密碼則要進過相同規則的加密才行。
新增使用者程式碼如下:

@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中的程式碼為:

 //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);
        // 許可權資訊物件info,用來存放查出的使用者的所有的角色(role)及許可權(permission)
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        for(Resources resources: resourcesList){
            info.addStringPermission(resources.getResurl());
        }
        return info;
    }

從以上程式碼中可以看出來,我根據使用者id查詢出使用者的許可權,放入SimpleAuthorizationInfo。關聯表user_role,role_resources,resources,三張表,根據使用者所擁有的角色,角色所擁有的許可權,查詢出分配給該使用者的所有許可權的url。當訪問的連結中配置在shiro中時,或者使用shiro標籤,shiro許可權註解時,則會訪問該方法,判斷該使用者是否擁有相應的許可權。

在ShiroConfig中有如下程式碼:

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

        // 必須設定 SecurityManager
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        // 如果不設定預設會自動尋找Web工程根目錄下的"/login.jsp"頁面
        shiroFilterFactoryBean.setLoginUrl("/login");
        // 登入成功後要跳轉的連結
        shiroFilterFactoryBean.setSuccessUrl("/usersPage");
        //未授權介面;
        shiroFilterFactoryBean.setUnauthorizedUrl("/403");
        //攔截器.
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();

        //配置退出 過濾器,其中的具體的退出程式碼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,一不小心程式碼就不好使了;
        //<!-- 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-->
        //自定義載入許可權資源關係
        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;
    }

該程式碼片段為配置shiro的過濾器。以上程式碼將靜態檔案設定為任何許可權都可訪問,然後

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