【原】无脑操作：IDEA + maven + Shiro + SpringBoot + JPA + Thymeleaf实现基础授权权限

上一篇《【原】无脑操作：IDEA + maven + Shiro + SpringBoot + JPA + Thymeleaf实现基础认证权限》介绍了实现Shiro的基础认证。本篇谈谈实现Shiro的基础授权。

需求：

① 某系统有公共模块、领导模块、管理员模块三个业务模块，均需要登录系统后才可以访问。

② admin、leader、employee三个人职位分别是管理员、领导、员工，均可登录系统。

③ 不同职位的人登录系统后，能看到的功能模块不同。管理员可以访问全部三个模块。领导可以访问除去管理员模块外的两个模块。员工只能访问公共模块。

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分析：

典型的运用授权权限的需求，继续考虑使用Shiro。

问题1、认证和授权怎么理解呢？

答：一点粗浅理解，比如通过了美国的签证能进入美国了，这就是获得了认证。

但是进入美国了，也只能去有授权的地方玩玩，五角大楼能进么？没有授权是不给进的。

所以，授权是在认证获得后进一步的安全管理。

问题2、需求在描述什么场景？

答：需求中包含了基于角色的权限访问控制RBAC（Role-Based Access Control）的设计思路。

简单来说，单个人对某某资源可操作。

进一步考虑，如果是多个人对某某资源可操作呢？需要重复的这样设置么？运用归纳思想，把这样的多个人归为一类，形成了角色的概念。即这一角色的多个人对某某资源可操作。

RBAC认为权限授权实际上是Who、What、How的问题。在RBAC模型中，who、what、how构成了访问权限三元组,也就是“Who对What(Which)进行How的操作”。

问题3、针对本需求的RBAC设计是怎么样的？

答：简化设计为：用户和角色为多对一关系、角色和资源为多对多关系

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0、数据库建表init.sql

 -- 初始化
 DROP TABLE sys_user;
 DROP TABLE sys_role;
 DROP TABLE sys_resource;
 DROP TABLE sys_role_resource;

 -- 用户信息表
 CREATE TABLE sys_user
 (
     userid INT AUTO_INCREMENT PRIMARY KEY COMMENT '用户编号',
     username VARCHAR(10) NOT NULL COMMENT '用户名称',
     `password` VARCHAR(10) NOT NULL COMMENT '用户密码',
     roleid INT NOT NULL COMMENT '角色编号'
 );

 INSERT INTO sys_user VALUES(NULL, 'admin', '', 1), (NULL, 'leader', '', 2), (NULL, 'employee', '', 3);

 SELECT * FROM sys_user;

 -- 角色信息表
 CREATE TABLE sys_role
 (
     roleid INT AUTO_INCREMENT PRIMARY KEY COMMENT '角色编号',
     rolename VARCHAR(10) NOT NULL COMMENT '角色名称'
 );

 INSERT INTO sys_role VALUES(NULL, '管理员'), (NULL, '领导'), (NULL, '员工');

 SELECT * FROM sys_role;

 -- 资源信息表
 CREATE TABLE sys_resource
 (
     resourceid INT AUTO_INCREMENT PRIMARY KEY COMMENT '资源编号',
     resourcename VARCHAR(10) NOT NULL COMMENT '资源名称',
     resourceurl VARCHAR(50) NOT NULL COMMENT '资源URL'
 );

 INSERT INTO sys_resource VALUES
 (NULL, '公共模块', 'publicModule'),
 (NULL, '领导模块', 'leaderModule'),
 (NULL, '管理员模块', 'adminModule');

 SELECT * FROM sys_resource;

 -- 角色资源关联表
 CREATE TABLE sys_role_resource
 (
     id INT AUTO_INCREMENT PRIMARY KEY COMMENT '关联编号',
     roleid INT NOT NULL COMMENT '角色编号',
     resourceid INT NOT NULL COMMENT '资源编号'
 );

 INSERT INTO sys_role_resource VALUES
 (NULL, 1, 1), (NULL, 1, 2), (NULL, 1, 3),
 (NULL, 2, 1), (NULL, 2, 2),
 (NULL, 3, 1);

 SELECT * FROM sys_role_resource;

 -- 获取用户能访问的资源URL
 SELECT u.userid, rs.resourceurl
 FROM sys_role_resource AS rr
 INNER JOIN sys_resource AS rs ON rr.resourceid = rs.resourceid
 INNER JOIN sys_role AS r ON rr.roleid = r.roleid
 INNER JOIN sys_user AS u ON u.roleid = r.roleid
 WHERE u.userid = 1;

1、编写项目对象模型文件pom.xml

 <?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>cn.temptation</groupId>
     <artifactId>studyShiro</artifactId>
     <version>1.0-SNAPSHOT</version>

     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.0.4.RELEASE</version>
     </parent>

     <dependencies>
         <!-- web -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
         <!-- thymeleaf -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
         </dependency>
         <!-- spring data jpa -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
         <!-- mariadb -->
         <dependency>
             <groupId>org.mariadb.jdbc</groupId>
             <artifactId>mariadb-java-client</artifactId>
             <version>2.2.5</version>
         </dependency>
         <!-- shiro -->
         <dependency>
             <groupId>org.apache.shiro</groupId>
             <artifactId>shiro-spring</artifactId>
             <version>1.4.0</version>
         </dependency>
         <!-- thymeleaf-extras-shiro -->
         <dependency>
             <groupId>com.github.theborakompanioni</groupId>
             <artifactId>thymeleaf-extras-shiro</artifactId>
             <version>2.0.0</version>
         </dependency>
         <!-- 热启动 -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-devtools</artifactId>
             <optional>true</optional>
         </dependency>
     </dependencies>
 </project>

2、编写项目配置文件application.properties

 # 数据库访问配置
 # 对应MariaDB驱动
 spring.datasource.driverClassName=org.mariadb.jdbc.Driver

 # 数据源配置
 spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test
 spring.datasource.username=root
 spring.datasource.password=sa

 # 配置Springboot默认支持的Hikari数据库连接池
 spring.datasource.type=com.zaxxer.hikari.HikariDataSource
 spring.datasource.hikari.minimum-idle=5
 spring.datasource.hikari.maximum-pool-size=15
 spring.datasource.hikari.auto-commit=true
 spring.datasource.hikari.idle-timeout=30000
 spring.datasource.hikari.pool-name=DatebookHikariCP
 spring.datasource.hikari.max-lifetime=1800000
 spring.datasource.hikari.connection-timeout=30000
 spring.datasource.hikari.connection-test-query=SELECT 1

 # Spring Data JPA配置
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
 spring.jpa.properties.hibernate.hbm2ddl.auto=update
 spring.jpa.show-sql=true
 spring.jpa.properties.hibernate.format_sql=true

 # 格式化输出的json字符串
 spring.jackson.serialization.indent_output=true

 # 设置控制台彩色打印
 spring.output.ansi.enabled=ALWAYS

3、编写项目启动类Application.java

 package cn.temptation;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

 @SpringBootApplication
 public class Application {
     public static void main(String[] args) {
         // SpringBoot项目启动
         SpringApplication.run(Application.class, args);
     }
 }

4、编写全局异常处理类GlobalExceptionHandler.java

 package cn.temptation.util;

 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;

 /**
  * 全局异常处理类
  */
 @ControllerAdvice
 public class GlobalExceptionHandler {
     @ExceptionHandler(value = Exception.class)
     public String errorHandler(Exception exception) {
         return "redirect:/error/500";
     }
 }

5、编写错误页配置类ErrorPageConfig.java 和 错误页控制器ErrorController.java

错误页配置类ErrorPageConfig.java

 package cn.temptation.util;

 import org.springframework.boot.web.server.ErrorPage;
 import org.springframework.boot.web.server.ErrorPageRegistrar;
 import org.springframework.boot.web.server.ErrorPageRegistry;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Component;

 /**
  * 错误页配置类
  */
 @Component
 public class ErrorPageConfig implements ErrorPageRegistrar {
     @Override
     public void registerErrorPages(ErrorPageRegistry errorPageRegistry) {
         // 错误类型为401（无访问权限），显示401.html页面
         ErrorPage errorPage401 = new ErrorPage(HttpStatus.UNAUTHORIZED, "/error/401");

         // 错误类型为404（找不到资源），显示404.html页面
         ErrorPage errorPage404 = new ErrorPage(HttpStatus.NOT_FOUND, "/error/404");

         // 错误类型为500（服务器内部错误），显示500.html页面
         ErrorPage errorPage500 = new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/error/500");

         errorPageRegistry.addErrorPages(errorPage401, errorPage404, errorPage500);
     }
 }

错误页控制器ErrorController.java

 package cn.temptation.util;

 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;

 /**
  * 错误页控制器
  */
 @Controller
 @RequestMapping("/error")
 public class ErrorController {
     // 401页面
     @GetMapping(value = "/401")
     public String error_401() {
         return "error/error_401";
     }

     // 404页面
     @GetMapping(value = "/404")
     public String error_404() {
         return "error/error_404";
     }

     // 500页面
     @GetMapping(value = "/500")
     public String error_500() {
         return "error/error_500";
     }
 }

6、编写错误页error_401.html、error_404.html 和 error_500.html

 <!DOCTYPE html>
 <html>
 <head>
     <meta charset="utf-8">
     <meta http-equiv="refresh" content="5;URL=/login">
     <title>401</title>
     <style>
         ::-moz-selection {
             background: #b3d4fc;
             text-shadow: none;
         }

         ::selection {
             background: #b3d4fc;
             text-shadow: none;
         }

         html {
             padding: 30px 10px;
             font-size: 20px;
             line-height: 1.4;
             color: #737373;
             background: #f0f0f0;
             font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
             -webkit-text-size-adjust: 100%;
             -ms-text-size-adjust: 100%;
         }

         body {
             max-width: 550px;
             _width: 550px;
             padding: 30px 20px 50px;
             border: 1px solid #b3b3b3;
             border-radius: 4px;
             margin: 0 auto;
             box-shadow: 0 1px 10px #a7a7a7, inset 0 1px 0 #fff;
             background: #fcfcfc;
         }

         h1 {
             margin: 0 10px;
             font-size: 50px;
             text-align: center;
         }

         h1 span {
             color: #bbb;
         }

         h3 {
             margin: 1.5em 0 0.5em;
         }

         p {
             margin: 1em 0;
         }

         ul {
             padding: 0 0 0 40px;
             margin: 1em 0;
         }

         .container {
             max-width: 500px;
             _width: 500px;
             margin: 0 auto;
         }
     </style>
 </head>
 <body>
 <div class="container">
     <h1>没有授权</h1>
     <p>抱歉，您没有授权访问该页面</p>
 </div>
 </body>
 </html>

error_401

 <!DOCTYPE html>
 <html>
 <head>
     <meta charset="utf-8">
     <meta http-equiv="refresh" content="5;URL=/login">
     <title>404</title>
     <style>
         ::-moz-selection {
             background: #b3d4fc;
             text-shadow: none;
         }

         ::selection {
             background: #b3d4fc;
             text-shadow: none;
         }

         html {
             padding: 30px 10px;
             font-size: 20px;
             line-height: 1.4;
             color: #737373;
             background: #f0f0f0;
             font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
             -webkit-text-size-adjust: 100%;
             -ms-text-size-adjust: 100%;
         }

         body {
             max-width: 550px;
             _width: 550px;
             padding: 30px 20px 50px;
             border: 1px solid #b3b3b3;
             border-radius: 4px;
             margin: 0 auto;
             box-shadow: 0 1px 10px #a7a7a7, inset 0 1px 0 #fff;
             background: #fcfcfc;
         }

         h1 {
             margin: 0 10px;
             font-size: 50px;
             text-align: center;
         }

         h1 span {
             color: #bbb;
         }

         h3 {
             margin: 1.5em 0 0.5em;
         }

         p {
             margin: 1em 0;
         }

         ul {
             padding: 0 0 0 40px;
             margin: 1em 0;
         }

         .container {
             max-width: 500px;
             _width: 500px;
             margin: 0 auto;
         }
     </style>
 </head>
 <body>
 <div class="container">
     <h1>没有找到<span>:(</span></h1>
     <p>抱歉，您试图访问的页面不存在</p>
     <p>可能是如下原因：</p>
     <ul>
         <li>一个错误的地址</li>
         <li>一个过时的链接</li>
     </ul>
 </div>
 </body>
 </html>

error_404

 <!DOCTYPE html>
 <html>
 <head>
     <meta charset="utf-8">
     <meta http-equiv="refresh" content="5;URL=/login">
     <title>500</title>
     <style>
         ::-moz-selection {
             background: #b3d4fc;
             text-shadow: none;
         }

         ::selection {
             background: #b3d4fc;
             text-shadow: none;
         }

         html {
             padding: 30px 10px;
             font-size: 20px;
             line-height: 1.4;
             color: #737373;
             background: #f0f0f0;
             font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
             -webkit-text-size-adjust: 100%;
             -ms-text-size-adjust: 100%;
         }

         body {
             max-width: 550px;
             _width: 550px;
             padding: 30px 20px 50px;
             border: 1px solid #b3b3b3;
             border-radius: 4px;
             margin: 0 auto;
             box-shadow: 0 1px 10px #a7a7a7, inset 0 1px 0 #fff;
             background: #fcfcfc;
         }

         h1 {
             margin: 0 10px;
             font-size: 50px;
             text-align: center;
         }

         h1 span {
             color: #bbb;
         }

         h3 {
             margin: 1.5em 0 0.5em;
         }

         p {
             margin: 1em 0;
         }

         ul {
             padding: 0 0 0 40px;
             margin: 1em 0;
         }

         .container {
             max-width: 500px;
             _width: 500px;
             margin: 0 auto;
         }
     </style>
 </head>
 <body>
 <div class="container">
     <h1>内部错误</h1>
     <p>抱歉，服务器上出现了错误......</p>
 </div>
 </body>
 </html>

error_500

6、编写登录页面login.html、首页页面index.html、公共模块页page_public.html、领导模块页page_leader.html 和 管理员模块页page_admin.html

 <!DOCTYPE html>
 <html xmlns:th="http://www.thymeleaf.org">
 <head>
     <meta charset="UTF-8">
     <title>系统登录</title>
 </head>
 <body>
 <div th:text="${msg}" style="color: red"></div>
 <form action="doLogin" method="post">
 帐号：<input type="text" id="txtUsername" name="username" /><br/>
 密码：<input type="password" id="txtPassword" name="password" /><br/><br/>
 <input type="submit" value="提交" />&nbsp;<input type="reset" value="重置" />
 </form>
 </body>
 </html>

登录页

 <!DOCTYPE html>
 <html xmlns:th="http://www.thymeleaf.org" xmlns:shiro="http://www.pollix.at/thymeleaf/shiro">
 <head>
     <meta charset="UTF-8">
     <title>系统首页</title>
 </head>
 <body>
 <div th:text="${'欢迎您，' + currentuser}" style="color: red;float: left;"></div>
 <div style="color: red;float: right;"><a href="doLogout">注销</a></div>
 <!--
 Thymeleaf中使用Shiro标签，具备授权才能看见
 注意：如果不适用Shiro标签，没有授权的访问将产生401响应吗，执行ErrorPageConfig类 和 ErrorController类处理
 -->
 <!--<div style="clear: both;">公共模块：<a href="publicModule">公共模块</a></div>-->
 <!--<div style="clear: both;">领导模块：<a href="leaderModule">领导模块</a></div>-->
 <!--<div style="clear: both;">管理员模块：<a href="adminModule">管理员模块</a></div>-->
 <div style="clear: both;" shiro:hasPermission="user:publicModule">公共模块：<a href="publicModule">公共模块</a></div>
 <div style="clear: both;" shiro:hasPermission="user:leaderModule">领导模块：<a href="leaderModule">领导模块</a></div>
 <div style="clear: both;" shiro:hasPermission="user:adminModule">管理员模块：<a href="adminModule">管理员模块</a></div>
 </body>
 </html>

首页

 <!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="UTF-8">
     <title>公共模块</title>
 </head>
 <body>
 公共模块（管理员、领导、员工均可访问）
 </body>
 </html>

公共模块页

 <!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="UTF-8">
     <title>领导模块</title>
 </head>
 <body>
 领导模块（管理员、领导均可访问）
 </body>
 </html>

领导模块页

 <!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="UTF-8">
     <title>管理员模块</title>
 </head>
 <body>
 管理员模块（管理员可访问）
 </body>
 </html>

管理员模块页

7、编写Shiro框架用配置类ShiroConfig.java 和 自定义Realm类MyRealm.java

配置类ShiroConfig.java

 package cn.temptation.shiro;

 import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
 import cn.temptation.dao.ResourceDao;
 import cn.temptation.domain.Resource;
 import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
 import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

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

 /**
  * Shiro配置类
  */
 @Configuration
 public class ShiroConfig {
     @Autowired
     private ResourceDao resourceDao;

     // 1、创建ShiroFilterFactoryBean
     @Bean
     public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
         ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
         // 设置安全管理器
         shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);

         // 设置登录跳转页面
         shiroFilterFactoryBean.setLoginUrl("/login");

         /**
          * Shiro内置过滤器：实现权限相关的拦截
          *      常用过滤器：
          *          anon（认证用）：无需认证（登录）即可访问
          *          authc（认证用）：必须认证才可访问
          *          user（少用）：使用rememberMe功能可以访问
          *          perms（授权用）：必须得到资源权限才可访问
          *          role（授权用）：必须得到角色权限才可访问
          */
         Map<String, String> filterMap = new LinkedHashMap<>();

         // 放行登录请求
         filterMap.put("/doLogin", "anon");

         // 配置退出过滤器，退出代码Shiro已经实现
         filterMap.put("/logout", "logout");

         // 配置授权过滤器

         // 先代码写死，测试下
 //        filterMap.put("/publicModule", "perms[user:publicModule]");
 //        filterMap.put("/leaderModule", "perms[user:leaderModule]");
 //        filterMap.put("/adminModule", "perms[user:adminModule]");

         // 获取所有资源，并配置需要进行授权过滤的资源
         List<Resource> resources = resourceDao.findAll();
         resources.forEach(item -> {
             if (!"".equals(item.getResourceurl())) {
                 filterMap.put("/" + item.getResourceurl(), "perms[user:" + item.getResourceurl() + "]");
             }
         });

         // 过滤链定义，从上向下顺序执行，一般将/*放在最下边
         filterMap.put("/*", "authc");

         // 设置未授权界面
         shiroFilterFactoryBean.setUnauthorizedUrl("/error/401");

         shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);

         return shiroFilterFactoryBean;
     }

     // 2、创建DefaultWebSecurityManager
     @Bean(name = "securityManager")
     public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("myRealm") MyRealm myRealm) {
         DefaultWebSecurityManager defaultWebSecurityManager = new DefaultWebSecurityManager();

         // 关联Realm
         defaultWebSecurityManager.setRealm(myRealm);

         return defaultWebSecurityManager;
     }

     // 3、创建Realm
     @Bean(name = "myRealm")
     public MyRealm getRealm() {
         return new MyRealm();
     }

     // 4、配置ShiroDialect后，可以在页面使用Shiro标签
     @Bean
     public ShiroDialect getShiroDialect() {
         return new ShiroDialect();
     }
 }

自定义Realm类MyRealm.java

 package cn.temptation.shiro;

 import cn.temptation.dao.ResourceDao;
 import cn.temptation.dao.UserDao;
 import cn.temptation.domain.User;
 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.subject.PrincipalCollection;
 import org.springframework.beans.factory.annotation.Autowired;

 import java.util.List;

 /**
  * 自定义Realm
  */
 public class MyRealm extends AuthorizingRealm {
     @Autowired
     private UserDao userDao;
     @Autowired
     private ResourceDao resourceDao;

     // 授权处理
     @Override
     protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
         // 获取当前登录获得认证的用户
         User user = (User) principalCollection.getPrimaryPrincipal();
         // 下句语句会抛出异常交由ErrorController类根据ErrorPageConfig类中注册的响应码和错误页面处理
 //        System.out.println(1 / 0);

         if (user != null) {
             // 给资源授权
             SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();

             // 先代码写死，测试下
 //            info.addStringPermission("user:publicModule");
 //            info.addStringPermission("user:leaderModule");
 //            info.addStringPermission("user:adminModule");

             // 根据获得认证的用户编号查询该用户具备的资源URL集合
             List<String> resourceurls = resourceDao.findByUserid(user.getUserid());

             // 遍历集合，组装成满足授权过滤器过滤格式，并添加到资源信息中
             resourceurls.forEach(item -> info.addStringPermission("user:" + item));

             return info;
         }

         return null;
     }

     // 认证处理
     @Override
     protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
         // 编写Shiro判断逻辑，判断账号和密码
         // 1、判断账号
         UsernamePasswordToken token = (UsernamePasswordToken) authenticationToken;

         User user = userDao.findByUsername(token.getUsername());
         if (user == null) {
             // 账号错误，Shiro底层会抛出UnknownAccountException异常
             return null;
         }

         // 2、判断密码
         // 只做认证，principal可以设置为空字符串
 //        return new SimpleAuthenticationInfo("", user.getPassword(), "");
         // 认证后做授权处理，需要将获得认证的用户对象赋值给principal，授权处理时会用到
         return new SimpleAuthenticationInfo(user, user.getPassword(), "");
     }
 }

8、编写用户实体类User.java、角色实体类Role.java 和 资源实体类Resource.java

用户实体类User.java

 package cn.temptation.domain;

 import javax.persistence.*;

 @Entity
 @Table(name = "sys_user")
 public class User {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "userid")
     private Integer userid;

     @Column(name = "username")
     private String username;

     @Column(name = "password")
     private String password;

     @ManyToOne
     @JoinColumn(name = "roleid", foreignKey = @ForeignKey(name = "none"))
     private Role role;

     public Integer getUserid() {
         return userid;
     }

     public void setUserid(Integer userid) {
         this.userid = userid;
     }

     public String getUsername() {
         return username;
     }

     public void setUsername(String username) {
         this.username = username;
     }

     public String getPassword() {
         return password;
     }

     public void setPassword(String password) {
         this.password = password;
     }

     public Role getRole() {
         return role;
     }

     public void setRole(Role role) {
         this.role = role;
     }
 }

角色实体类Role.java

 package cn.temptation.domain;

 import javax.persistence.*;
 import java.util.Set;

 @Entity
 @Table(name = "sys_role")
 public class Role {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "roleid")
     private Integer roleid;

     @Column(name = "rolename")
     private String rolename;

     @ManyToMany
     @JoinTable(name = "sys_role_resource",
             joinColumns = {@JoinColumn(name = "roleid", referencedColumnName = "roleid", foreignKey = @ForeignKey(name = "none"))},
             inverseJoinColumns = {@JoinColumn(name = "resourceid", referencedColumnName = "resourceid", foreignKey = @ForeignKey(name = "none"))})
     private Set<Resource> resources;

     public Integer getRoleid() {
         return roleid;
     }

     public void setRoleid(Integer roleid) {
         this.roleid = roleid;
     }

     public String getRolename() {
         return rolename;
     }

     public void setRolename(String rolename) {
         this.rolename = rolename;
     }
 }

资源实体类Resource.java

 package cn.temptation.domain;

 import javax.persistence.*;

 @Entity
 @Table(name = "sys_resource")
 public class Resource {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "resourceid")
     private Integer resourceid;

     @Column(name = "resourcename")
     private String resourcename;

     @Column(name = "resourceurl")
     private String resourceurl;

     public Integer getResourceid() {
         return resourceid;
     }

     public void setResourceid(Integer resourceid) {
         this.resourceid = resourceid;
     }

     public String getResourcename() {
         return resourcename;
     }

     public void setResourcename(String resourcename) {
         this.resourcename = resourcename;
     }

     public String getResourceurl() {
         return resourceurl;
     }

     public void setResourceurl(String resourceurl) {
         this.resourceurl = resourceurl;
     }
 }

9、编写用户控制器类UserController.java

 package cn.temptation.web;

 import org.apache.shiro.SecurityUtils;
 import org.apache.shiro.authc.IncorrectCredentialsException;
 import org.apache.shiro.authc.UnknownAccountException;
 import org.apache.shiro.authc.UsernamePasswordToken;
 import org.apache.shiro.subject.Subject;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;

 @Controller
 public class UserController {
     // 访问登录页
     @RequestMapping("/login")
     public String login() {
         // 下句语句会抛出异常交由GlobalExceptionHandler类的errorHandler方法处理
 //        System.out.println(1 / 0);

         return "login";
     }

     // 访问首页
     @RequestMapping("/index")
     public String index() {
         return "index";
     }

     // 访问公共模块
     @RequestMapping("/publicModule")
     public String publicModule() {
         return "page_public";
     }

     // 访问私密模块
     @RequestMapping("/privateModule")
     public String privateModule() {
         return "page_leader";
     }

     // 登录处理
     @RequestMapping("/doLogin")
     public String doLogin(String username, String password, Model model) {
         // 使用Shiro编写认证处理
         // 1、获取Subject
         Subject subject = SecurityUtils.getSubject();

         // 2、封装用户数据
         UsernamePasswordToken token = new UsernamePasswordToken(username, password);

         // 3、执行登录
         try {
             // 登录成功
             subject.login(token);

             // 返回当前用户的帐号
             model.addAttribute("currentuser", token.getUsername());

             return "index";
         } catch (UnknownAccountException exception) {
             // 返回错误信息
             model.addAttribute("msg", "账号错误！");

             return "login";
         } catch (IncorrectCredentialsException exception) {
             // 返回错误信息
             model.addAttribute("msg", "密码错误！");

             return "login";
         }
     }

     // 注销处理
     @RequestMapping("/doLogout")
     public String doLogout() {
         // 1、获取Subject
         Subject subject = SecurityUtils.getSubject();

         // 2、执行注销
         try {
             subject.logout();
         } catch (Exception ex) {
             ex.printStackTrace();
         } finally {
             return "login";
         }
     }
 }

10、编写用户数据访问接口UserDao.java、角色数据访问接口RoleDao.java 和 资源数据访问接口ResourceDao.java

用户数据访问接口UserDao.java

 package cn.temptation.dao;

 import cn.temptation.domain.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

 public interface UserDao extends JpaRepository<User, Integer> {
     // 根据账号查询用户
     @Query(value = "SELECT * FROM sys_user WHERE username=:username", nativeQuery = true)
     User findByUsername(@Param("username") String username);
 }

角色数据访问接口RoleDao.java

 package cn.temptation.dao;

 import cn.temptation.domain.Role;
 import org.springframework.data.jpa.repository.JpaRepository;

 public interface RoleDao extends JpaRepository<Role, Integer> {

 }

资源数据访问接口ResourceDao.java

 package cn.temptation.dao;

 import cn.temptation.domain.Resource;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

 import java.util.List;

 public interface ResourceDao extends JpaRepository<Resource, Integer> {
     @Query(value = "SELECT rs.resourceurl FROM sys_role_resource AS rr " +
             "INNER JOIN sys_resource AS rs ON rr.resourceid = rs.resourceid " +
             "INNER JOIN sys_role AS r ON rr.roleid = r.roleid " +
             "INNER JOIN sys_user AS u ON u.roleid = r.roleid WHERE u.userid = :userid ", nativeQuery = true)
     List<String> findByUserid(@Param("userid") Integer userid);
 }

11、项目结构

12、运行效果