shiro学习（五、springboot+shiro+mybatis+thymeleaf）

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入门shiro（感觉成功了）首先感谢狂神，然后我就一本正经的复制代码了

项目结构

运行效果

数据库

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<dependencies>
        <!-- thymeleaf-shiro整合包 -->
        <dependency>
            <groupId>com.github.theborakompanioni</groupId>
            <artifactId>thymeleaf-extras-shiro</artifactId>
            <version>2.0.0</version>
        </dependency>

        <!--快速生成pojo的方法有关的lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>
        <!-- 引入 myBatis，这是 MyBatis官方提供的适配 Spring Boot 的，而不是Spring Boot自己的-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.15</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.12</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/log4j/log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!--
            Subject 用户,
            SecurityManager 管理所有用户,
            Realm 连接数据，需要自定义
        -->
        <!--shiro整合spring的包-->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--thymeleaf模板-->
        <dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring5</artifactId>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-java8time</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

ShiroConfig.class

@Configuration
public class ShiroConfig {
    //ShiroFilterFactoryBean   第三步
    @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的内置过滤器
            anon：无须认证就可以访问
            authc：必须认证了才可以访问
            perms：拥有对某个资源的权限才能访问
            role:拥有某个角色才可以访问
         */
        Map<String, String> filterMap = new LinkedHashMap();
//        filterMap.put("/user/add","authc");
//        filterMap.put("/user/update","authc");
        filterMap.put("/user/add","perms[user:add]");
        filterMap.put("/user/update","perms[user:update]");
        filterMap.put("/user/*","authc");

        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);
        //设置跳转到登录页面
        shiroFilterFactoryBean.setLoginUrl("/toLogin");
        //设置到未授权页面
        shiroFilterFactoryBean.setUnauthorizedUrl("/noauth");

        return shiroFilterFactoryBean;
    }

    //DefaultWebSecurityManager  第二步
    @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 域对象，需要自定义   第一步
    @Bean(name = "userRealm")
    public UserRealm getUserRealm(){
        return new UserRealm();
    }

    //shiro 整合thymeleaf
    @Bean
    public ShiroDialect getShiroDialect(){
        return new ShiroDialect();
    }
}

UserRealm.class

public class UserRealm extends AuthorizingRealm {
    @Autowired
    private UserService userService;
    @Override   //授权
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        System.out.println("-----授权了-----AuthorizationInfo");
        SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();
//        info.addStringPermission("user:add");
        //从数据库查权限
        Subject subject = SecurityUtils.getSubject();
        User currentUser = (User) subject.getPrincipal();//其实就是拿认证成功的时候的那个user
        info.addStringPermission(currentUser.getPerms());

        return info;
    }

    @Override   //认证
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("-----认证了-----AuthenticationInfo");
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;
        //用户名，密码去数据库取
        User user = userService.queryUserByUsername(userToken.getUsername());
        if (user==null){  //没有这个人
            return null;  //其实就是抛出UnknownAccountException异常
        }
        //之后密码认证，shiro   它自己会做
        SimpleAuthenticationInfo info=new SimpleAuthenticationInfo(user,user.getPassword(),"");
        Subject currentSubject = SecurityUtils.getSubject();
        Session session = currentSubject.getSession();
        session.setAttribute("loginUser",user);
        return info;
    }
}

MyController.class

@Controller
public class MyController {
    @RequestMapping({"/","/index"})
    public String toIndex(Model model){
        model.addAttribute("msg","hello shiro!!!");
        return "index";
    }
    @RequestMapping("/user/add")
    public String add(){
        return "user/add";
    }
    @RequestMapping("/user/update")
    public String update(){
        return "user/update";
    }
    @RequestMapping("/toLogin")
    public String toLogin(){
        return "login";
    }
    @RequestMapping("/login")
    public String login(String username,String password,Model model){
        //获取当前输入的用户
        Subject subject = SecurityUtils.getSubject();
        //封装用户的数据
        UsernamePasswordToken token = new UsernamePasswordToken(username,password);
        //登录，没有异常就说明登录成功
        try {
            subject.login(token);
            return "index";
        } catch (UnknownAccountException e) {
            model.addAttribute("msg","用户名错误");
            return "login";
        }catch (IncorrectCredentialsException e){
            model.addAttribute("msg","密码错误");
            return "login";
        }
    }
    //没授权
    @RequestMapping("/noauth")
    @ResponseBody
    public String unauthorized(){
        return "没经授权无法进入";
    }
    //退出
    @RequestMapping("/logout")
    public String logout(){
        Subject currentUser = SecurityUtils.getSubject();
        currentUser.logout();
        System.out.println("退出了");
        return "login";
    }
}

User.class

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private int id;
    private String username;
    private String password;
    private String perms;
}

UserMapper.class

@Mapper
@Repository
public interface UserMapper {
    public User queryUserByUsername(String username);
}

UserService.class

public interface UserService {
    public User queryUserByUsername(String username);
}

UserServiceImpl.class

@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public User queryUserByUsername(String username) {
        return userMapper.queryUserByUsername(username);
    }
}

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">

<mapper namespace="com.kuang.mapper.UserMapper">
    <select id="queryUserByUsername" parameterType="String" resultType="User">
        select * from user where username=#{username}
    </select>
</mapper>

application.properties

mybatis.type-aliases-package=com.kuang.pojo
mybatis.mapper-locations=classpath:mapper/*.xml

application.yml

spring:
  datasource:
    username: root
    password: root
    #?serverTimezone=UTC解决时区的报错
    url: jdbc:mysql://localhost:3306/shiro?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    #Spring Boot 默认是不注入这些属性值的，需要自己绑定
    #druid 数据源专有配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true

    #配置监控统计拦截的filters，stat:监控统计、log4j：日志记录、wall：防御sql注入
    #如果允许时报错  java.lang.ClassNotFoundException: org.apache.log4j.Priority
    #则导入 log4j 依赖即可，Maven 地址： https://mvnrepository.com/artifact/log4j/log4j
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

index.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
      xmlns:shiro="http://www.thymeleaf.org/thymeleaf-extras-shiro">
<head>
    <meta charset="UTF-8">
    <title>shiro</title>
</head>
<body>
    <h1>首页</h1>
    <div th:if="${session.loginUser==null}">
        <a th:href="@{/toLogin}">登录</a>
    </div>
    <p th:text="${msg}"></p>
    <hr/>

    <div shiro:hasPermission="user:add">
        <a th:href="@{/user/add}">add</a>
    </div>
    <div shiro:hasPermission="user:update">
        <a th:href="@{/user/update}">update</a>
    </div>
    <div th:if="${session.loginUser}">
        <p><a th:href="@{/logout}">退出</a></p>
    </div>
</body>
</html>

login.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>shiro登录</title>
</head>
<body>
<div>
    <p th:text="${msg}" style="color: red"></p>
    <form method="get" th:action="@{/login}">
        <p>用户名:<input type="text" name="username"></p>
        <p>密  码:<input type="text" name="password"></p>
        <p><input type="submit" value="登录"></p>
    </form>
</div>
</body>
</html>

add.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>增加</title>
</head>
<body>
<h2>add</h2>
</body>
</html>

update.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>更新</title>
</head>
<body>
<h2>update</h2>
</body>
</html>

总结一下：首先搭建好环境是关键：springboot--》MVC--》mybatis，然后进行shiro的过滤，认证，授权。。。

主要理解好

ShiroConfig

ShiroFilterFactoryBean

setFilterChainDefinitionMap（）

DefaultWebSecurityManager
自定义域  UserRealm  继承   AuthorizingRealm

AuthorizationInfo      SimpleAuthenticationInfo

AuthenticationInfo　　　　SimpleAuthorizationInfo

UsernamePasswordToken

SecurityUtils

getSession()

getSubject()

getPrincipal()

AuthenticationToken

。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。