狂神SpringBoot-Shiro笔记

文章目录

文件配置

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数据库单表User
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pom.xml

    <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>
        </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>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!--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.apache.shiro</groupId>-->
<!--            <artifactId>shiro-spring-boot-web-starter</artifactId>-->
<!--            <version>1.6.0</version>-->
<!--        </dependency>-->

        <!--thymeleaf-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <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-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

application.properties

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

application.yml

spring:
  datasource:
    username: root
    password: 123456
    #?serverTimezone=UTC解决时区的报错
    url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
    driver-class-name: com.mysql.cj.jdbc.Driver

    #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

前端页面

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>首页</title>
</head>
<body>

<h1>首页</h1>

<p th:text="${msg}"></p>

<div th:if="${session.loginUser==null}">
    <a th:href="@{/toLogin}">登录</a>
</div>

<hr>

<div shiro:hasPermission="user:add">
    <a th:href="@{/user/add}">增加</a>
</div>

<div shiro:hasPermission="user:update">
    <a th:href="@{/user/update}">删除</a>
</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: #ff0000"></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" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>这是增加页面</h1>
</body>
</html>

update.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>这是修改页面</h1>
</body>
</html>

认证授权

User

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private int id;
    private String name;
    private String pwd;
    //权限
    private String perm;
}

UserMapper

@Mapper
@Repository
public interface UserMapper {

    //根据姓名查询用户
    public User queryUserByName(String name);
}

UserService

public interface UserService {
    //根据姓名查询用户
    public User queryUserByName(String name);
}

UserServiceImpl

@Service
public class UserServiceImpl implements UserService{

    @Autowired
    UserMapper userMapper;

    //根据姓名查询用户
    @Override
    public User queryUserByName(String name) {
        return userMapper.queryUserByName(name);
    }
}

resources/mybatis/mapper/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.jing.mapper.UserMapper">
    <select id="queryUserByName" parameterType="String" resultType="User">
        select * from user where name=#{name}
    </select>
</mapper>

MyController

@Controller
public class MyController {

    @RequestMapping({"/","/index"})
    public String toIndex(Model model){
        model.addAttribute("msg","hello shiro!!!");
        return "index";
    }

    @ResponseBody
    @RequestMapping("/user/add")
    public String add(){
        return "add";
    }

    @ResponseBody
    @RequestMapping("/user/update")
    public String update(){
        return "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";
    }
}

UserRealm


//自定义的 Realm
public class UserRealm extends AuthorizingRealm {

    @Autowired
    UserService userService;

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        //打印一个提示
        System.out.println("执行了授权方法");

        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.getPerm());

        return info;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        //打印一个提示
        System.out.println("-----认证了-----AuthenticationInfo");
        UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
        //用户名，密码去数据库取
        User user = userService.queryUserByName(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.getPwd(),"");
        Subject currentSubject = SecurityUtils.getSubject();
        Session session = currentSubject.getSession();
        session.setAttribute("loginUser",user);

        return info;
    }
}

ShiroConfig

@Configuration
public class ShiroConfig {
    //1. subject -> ShiroFilterFactoryBean
    // @Qualifier("securityManager") 指定 Bean 的名字为 securityManager

    @Bean(name = "shiroFilterFactoryBean")
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("SecurityManager") DefaultWebSecurityManager securityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        //需要关联 securityManager ，通过参数把 securityManager 对象传递过来
        bean.setSecurityManager(securityManager);

        //添加 Shiro 的内置过滤器=======================
        /*
            anon : 无需认证，就可以访问
            authc : 必须认证，才能访问
            user : 必须拥有 “记住我”功能才能用
            perms : 拥有对某个资源的权限才能访问
            role : 拥有某个角色权限才能访问
         */
        Map<String, String> filterMap = new LinkedHashMap<>();
        // 设置 /user/addUser 这个请求,只有认证过才能访问
//        filterMap.put("/user/add","authc");
//        filterMap.put("/user/update","authc");
        // 设置 /user/ 下面的所有请求,只有认证过才能访问
        //授权
        filterMap.put("/user/add","perms[user:add]");
        filterMap.put("/user/update","perms[user:update]");

        filterMap.put("/user/*","authc");
        bean.setFilterChainDefinitionMap(filterMap);
        
        // 设置登录的请求
        bean.setLoginUrl("/toLogin");

        //未授权页面跳转
        bean.setUnauthorizedUrl("/noauth");

        return bean;
    }
    
    //2. securityManager -> DefaultWebSecurityManager
    // @Qualifier("userRealm") 指定 Bean 的名字为 userRealm
    // spring 默认的 BeanName 就是方法名
    // name 属性 指定 BeanName
    @Bean(name = "SecurityManager")
    public DefaultWebSecurityManager getDefaultWebSecurity(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //需要关联自定义的 Realm，通过参数把 Realm 对象传递过来
        securityManager.setRealm(userRealm);
        return securityManager;
    }
    
    //3. realm
    //让 spring 托管自定义的 realm 类
    @Bean
    public UserRealm userRealm(){
        return new UserRealm();
    }

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