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  • Shiro回顾

    3. Spring Boot与Shiro整合实现用户认证

    参考自:https://www.cnblogs.com/WUXIAOCHANG/p/10886534.html

    3.1 分析Shiro的核心API
    Subject: 用户主体(把操作交给SecurityManager)
    SecurityManager:安全管理器(关联Realm)
    Realm:Shiro连接数据的桥梁

    3.2 导入shiro与spring整合依赖
    pom.xml文件中添加依赖

    <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>
    
        <!-- 继承Spring Boot的默认父工程 -->
        <!-- Spring Boot 父工程 -->
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.4.RELEASE</version>
        </parent>
    
        <groupId>com.itheima</groupId>
        <artifactId>springboot-shiro</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    
    
        <!-- 导入依赖 -->
        <dependencies>
    
            <!-- 导入web支持:SpringMVC开发支持,Servlet相关的程序 -->
            <!-- web支持,SpringMVC, Servlet支持等 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <!-- 导入thymeleaf依赖 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
            </dependency>
    
            <!-- shiro与spring整合依赖 -->
            <dependency>
                <groupId>org.apache.shiro</groupId>
                <artifactId>shiro-spring</artifactId>
                <version>1.4.0</version>
            </dependency>
    
            <!-- 导入mybatis相关的依赖 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>1.0.9</version>
            </dependency>
    
            <!-- mysql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
    
            <!-- SpringBoot的Mybatis启动器 -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.1.1</version>
            </dependency>
    
            <!-- thymel对shiro的扩展坐标 -->
            <dependency>
                <groupId>com.github.theborakompanioni</groupId>
                <artifactId>thymeleaf-extras-shiro</artifactId>
                <version>2.0.0</version>
            </dependency>
    
        </dependencies>
    
    
        <!-- 修改参数 -->
        <properties>
            <!-- 修改JDK的编译版本为1.8 -->
            <java.version>1.8</java.version>
            <!-- 修改thymeleaf的版本 -->
            <thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>
            <thymeleaf-layout-dialect.version>2.0.4</thymeleaf-layout-dialect.version>
        </properties>
    
        <build>
            <!--解决项目运行后mapper.xmlw文件找不到情况-->
            <resources>
                <resource>
                    <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.xml</include>
                    </includes>
                </resource>
            </resources>
        </build>
    
    </project>
    

    3.3 resources下配置
    新建application.properties文件

    spring.datasource.driverClassName=com.mysql.jdbc.Driver
    spring.datasource.url=jdbc:mysql://localhost:3306/shiro_test
    spring.datasource.username=root
    spring.datasource.password=147258qq
    
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    
    mybatis.type-aliases-package=com.itheima.domain
    

    templates文件夹下加入相关模板页面

    add.html

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>用户添加页面</title>
    </head>
    <body>
    用户添加
    </body>
    </html>
    

    update.html

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>用户更新页面</title>
    </head>
    <body>
    用户更新
    </body>
    </html>
    

    login.html

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>登录页面</title>
    </head>
    <body>
    <h3>登录</h3>
    <h3 th:text="${msg}" style="color: red"></h3>
    
    <form method="post" action="login">
        用户名:<input type="text" name="name"/><br/>
        密码:<input type="password" name="password"/><br/>
        <input type="submit" value="登录"/>
    </form>
    </body>
    </html>
    

    noAuth.html

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>未授权提示页面</title>
    </head>
    <body>
    亲,你未经授权访问该页面
    </body>
    </html>
    
     

    3.4 新建shiro相关配置
    com.itheima.shiro包下新建ShiroConfig.java类

    package com.itheima.shiro;
    
    import java.util.LinkedHashMap;
    import java.util.Map;
    
    import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
    import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
    
    /**
     * Shiro的配置类
     * 
     * 关于Configuration的讲解,可参考一下博客:https://www.cnblogs.com/WUXIAOCHANG/p/10877266.html
     * @author lenovo
     *
     */
    @Configuration
    public class ShiroConfig {
    
        /**
         * 创建ShiroFilterFactoryBean
         */
        @Bean
        public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager")DefaultWebSecurityManager securityManager){
            
            ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
            
            //设置安全管理器
            shiroFilterFactoryBean.setSecurityManager(securityManager);
            
            //添加Shiro内置过滤器
            /**
             * Shiro内置过滤器,可以实现权限相关的拦截器
             *    常用的过滤器:
             *       anon: 无需认证(登录)可以访问
             *       authc: 必须认证才可以访问
             *       user: 如果使用rememberMe的功能可以直接访问
             *       perms: 该资源必须得到资源权限才可以访问
             *       role: 该资源必须得到角色权限才可以访问
             */
            Map<String,String> filterMap = new LinkedHashMap<String,String>();
            /*filterMap.put("/add", "authc");
            filterMap.put("/update", "authc");*/
            
            filterMap.put("/testThymeleaf", "anon");
            //放行login.html页面
            filterMap.put("/login", "anon");
            
            //授权过滤器
            //注意:当前授权拦截后,shiro会自动跳转到未授权页面
            //perms括号中的内容是权限的值
            filterMap.put("/add", "perms[user:add]");
            filterMap.put("/update", "perms[user:update]");
            
            filterMap.put("/*", "authc");
            
            //修改调整的登录页面
            shiroFilterFactoryBean.setLoginUrl("/toLogin");
            //设置未授权提示页面
            shiroFilterFactoryBean.setUnauthorizedUrl("/noAuth");
            
            shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);
            
            
            return shiroFilterFactoryBean;
        }
        
        /**
         * 创建DefaultWebSecurityManager
         * 
         * 里面主要定义了登录,创建subject,登出等操作
         */
        @Bean(name="securityManager")
        public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm")UserRealm userRealm){
            DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
            //关联realm
            securityManager.setRealm(userRealm);
            return securityManager;
        }
        
        /**
         * 创建Realm
         */
        @Bean(name="userRealm")
        public UserRealm getRealm(){
            return new UserRealm();
        }
        
        /**
         * 配置ShiroDialect,用于thymeleaf和shiro标签配合使用
         */
        @Bean
        public ShiroDialect getShiroDialect(){
            return new ShiroDialect();
        }
    }
    

    com.itheima.shiro包下新建UserRealm.java类

    package com.itheima.shiro;
    
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.AuthenticationException;
    import org.apache.shiro.authc.AuthenticationInfo;
    import org.apache.shiro.authc.AuthenticationToken;
    import org.apache.shiro.authc.SimpleAuthenticationInfo;
    import org.apache.shiro.authc.UsernamePasswordToken;
    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.apache.shiro.subject.Subject;
    import org.springframework.beans.factory.annotation.Autowired;
    
    import com.itheima.domain.User;
    import com.itheima.service.UserService;
    
    /**
     * 自定义Realm
     * (1)AuthenticatingRealm:shiro中的用于进行认证的领域,实现doGetAuthentcationInfo方法实现用户登录时的认证逻辑;
     * (2)AuthorizingRealm:shiro中用于授权的领域,实现doGetAuthrozitionInfo方法实现用户的授权逻辑,AuthorizingRealm继承了AuthenticatingRealm,
     * 所以在实际使用中主要用到的就是这个AuthenticatingRealm类;
     * (3)AuthenticatingRealm、AuthorizingRealm这两个类都是shiro中提供了一些线程的realm接口
     * (4)在与spring整合项目中,shiro的SecurityManager会自动调用这两个方法,从而实现认证和授权,可以结合shiro的CacheManager将认证和授权信息保存在缓存中,
     * 这样可以提高系统的处理效率。    
     *
     */
    public class UserRealm extends AuthorizingRealm{
    
        @Autowired
        private UserService userSerivce;
    
        /**
         * 执行认证逻辑
         */
        @Override
        protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken arg0) throws AuthenticationException {
            System.out.println("执行认证逻辑");
    
            //编写shiro判断逻辑,判断用户名和密码
            //1.判断用户名  token中的用户信息是登录时候传进来的
            UsernamePasswordToken token = (UsernamePasswordToken)arg0;
    
            User user = userSerivce.findByName(token.getUsername());
    
            if(user==null){
                //用户名不存在
                return null;//shiro底层会抛出UnKnowAccountException
            }
    
            //2.判断密码
            //第二个字段是user.getPassword(),注意这里是指从数据库中获取的password。第三个字段是realm,即当前realm的名称。
            //这块对比逻辑是先对比username,但是username肯定是相等的,所以真正对比的是password。
            //从这里传入的password(这里是从数据库获取的)和token(filter中登录时生成的)中的password做对比,如果相同就允许登录,
            // 不相同就抛出IncorrectCredentialsException异常。
            //如果认证不通过,就不会执行下面的授权方法了
            return new SimpleAuthenticationInfo(user,user.getPassword(),"");
        }
    
        /**
         * 执行授权逻辑
         */
        @Override
        protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection arg0) {
    
            //doGetAuthorizationInfo方法可能会执行多次,权限判断次数多少,就会执行多少次
            System.out.println("执行授权逻辑1");
            System.out.println("执行授权逻辑2");
            
            //给资源进行授权
            SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
            
            //添加资源的授权字符串
            //info.addStringPermission("user:add");
            
            //到数据库查询当前登录用户的授权字符串
            //获取当前登录用户
            Subject subject = SecurityUtils.getSubject();
            User user = (User)subject.getPrincipal();
            User dbUser = userSerivce.findById(user.getId());
            
            info.addStringPermission(dbUser.getPerms());
            
            return info;
        }
    }
    
    

    3.5 新建实体类
    com.itheima.domain包下新建User.java

    package com.itheima.domain;
    
    public class User {
        private Integer id;
        private String name;
        private String password;
        private String perms;
        public String getPerms() {
            return perms;
        }
        public void setPerms(String perms) {
            this.perms = perms;
        }
        public Integer getId() {
            return id;
        }
        public void setId(Integer id) {
            this.id = id;
        }
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getPassword() {
            return password;
        }
        public void setPassword(String password) {
            this.password = password;
        }
        
    }
    
    

    3.6 创建mapper相关内容
    com.itheima.mapper包下新建UserMapper.java

    package com.itheima.mapper;
    
    import com.itheima.domain.User;
    
    public interface UserMapper {
    
        public User findByName(String name);
        
        public User findById(Integer id);
    }
    
    

    com.itheima.mapper包下新建UserMapper.xml

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE mapper
    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    <!-- 该文件存放CRUD的sql语句 -->
    <mapper namespace="com.itheima.mapper.UserMapper">
        
        <select id="findByName" parameterType="string" resultType="user">
        SELECT  id, 
            NAME, 
            PASSWORD
            FROM 
            user where name = #{value}
        </select>
        
        <select id="findById" parameterType="int" resultType="user">
            SELECT  id, 
            NAME, 
            PASSWORD,
            perms 
            FROM 
            user where id = #{value}
        </select>
    </mapper>
    

    3.7 创建业务逻辑相关内容
    com.itheima.service下新建UserService.java

    package com.itheima.service;
    
    import com.itheima.domain.User;
    
    public interface UserService {
    
        public User findByName(String name);
        
        public User findById(Integer id);
    }
    
    

    com.itheima.service.impl下新建UserServiceImpl.java

    package com.itheima.service.impl;
    
    import org.apache.tomcat.util.net.openssl.ciphers.Authentication;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import org.springframework.transaction.annotation.Transactional;
    
    import com.itheima.domain.User;
    import com.itheima.mapper.UserMapper;
    import com.itheima.service.UserService;
    
    @Service
    public class UserServiceImpl implements UserService{
    
        //注入Mapper接口
        @Autowired
        private UserMapper userMapper;
        
        @Override
        public User findByName(String name) {
            return userMapper.findByName(name);
        }
    
        @Override
        public User findById(Integer id) {
            return userMapper.findById(id);
        }
    
    }
    
    

    3.8 新建Controller相关内容
    UserController.java添加相关代码,最终内容如下:

    package com.itheima.controller;
    
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.AuthenticationException;
    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.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    import com.itheima.service.UserService;
    
    @Controller
    public class UserController {
    
        /**
         * 测试方法
         */
        @RequestMapping("/hello")
        @ResponseBody
        public String hello(){
            System.out.println("UserController.hello()");
            return "ok";
        }
        
        @RequestMapping("/add")
        public String add(){
            return "/user/add";
        }
        
        @RequestMapping("/update")
        public String update(){
            return "/user/update";
        }
        
        @RequestMapping("/toLogin")
        public String toLogin(){
            return "/login";
        }
        
        @RequestMapping("/noAuth")
        public String noAuth(){
            return "/noAuth";
        }
    
        /**
         * 测试thymeleaf
         */
        @RequestMapping("/testThymeleaf")
        public String testThymeleaf(Model model){
            //把数据存入model
            model.addAttribute("name", "吴先生");
            //返回test.html
            return "test";
        }
        
        /**
         * 登录逻辑处理
         */
        @RequestMapping("/login")
        public String login(String name,String password,Model model){
            System.out.println("name="+name);
            /**
             * 使用Shiro编写认证操作
             */
            //1.获取Subject
            Subject subject = SecurityUtils.getSubject();
            
            //2.封装用户数据
            UsernamePasswordToken token = new UsernamePasswordToken(name,password);
            
            //3.执行登录方法
            try {
                subject.login(token);
                
                //登录成功
                //跳转到test.html
                return "redirect:/testThymeleaf";
            } catch (UnknownAccountException e) {
                //e.printStackTrace();
                //登录失败:用户名不存在,UnknownAccountException是Shiro抛出的找不到用户异常
                model.addAttribute("msg", "用户名不存在");
                return "login";
            }catch (IncorrectCredentialsException e) {
                //e.printStackTrace();
                //登录失败:密码错误,IncorrectCredentialsException是Shiro抛出的密码错误异常
                model.addAttribute("msg", "密码错误");
                return "login";
            }
        }
    }
    
    

    3.9 Application启动类配置

    package com.itheima;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /**
     * SpringBoot启动类
     * @author lenovo
     *
     */
    @SpringBootApplication
    //之前是,直接在Mapper类上面添加注解@Mapper,这种方式要求每一个mapper类都需要添加此注解,麻烦
    //通过使用@MapperScan可以指定要扫描的Mapper类的包的路径   同时,使用@MapperScan注解多个包 
    @MapperScan("com.itheima.mapper")
    public class Application {
    
        public static void main(String[] args) {
            SpringApplication.run(Application.class, args);
        }
    }
    
    

    3.10 创建后项目结构

     

    3.11 数据库配置
    数据库的sql文件可以在项目源码与资料下载中获取,我们创建的数据库名字为shiro_test,具体字段参数如下图所示:

     

    往数据库插入一条数据

     

    3.12 运行项目并访问

     

    访问http://localhost:8080/add或者http://localhost:8080/update,可以看到被拦截了,重定向到了登录页面

     
     

    访问http://localhost:8080/login,进行登录

     

    登录成功

     

    我们在数据库添加的权限是修改的,我们试试登录后,访问添加页面

     

    可以看到,已经被拦截了

    四、项目源码与资料下载

    链接:https://pan.baidu.com/s/12yTMozR6oFG6cYcVmnBwog
    提取码:yswz

    五、参考文章

    1. https://www.cnblogs.com/jpfss/p/8352031.html
    2. https://blog.csdn.net/liyuejin/article/details/77838868
    3. http://yun.itheima.com/open/283.html?1810mcgqq
    I hate being alone,but I'm afraid I won't get married early
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  • 原文地址:https://www.cnblogs.com/Bkxk/p/14968863.html
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