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  • 【Shiro学习之一】Shiro入门

    一、Shiro

    Apache Shiro是一个Java安全框架。

    1、官网:http://shiro.apache.org/

    2、三个核心组件

    Subject:即“当前操作用户”,可以指人、第三方进程、后台帐户或其他类似事物。Subject代表了当前用户的安全操作,SecurityManager则管理所有用户的安全操作。

    SecurityManager:它是Shiro框架的核心,典型的Facade模式,Shiro通过SecurityManager来管理内部组件实例,并通过它来提供安全管理的各种服务。
      
    Realm:Realm充当了Shiro与应用安全数据间的“桥梁”或者“连接器”。也就是说,当对用户执行认证(登录)和授权(访问控制)验证时,Shiro会从应用配置的Realm中查找用户及其权限信息。
    从这个意义上讲,Realm实质上是一个安全相关的DAO:它封装了数据源的连接细节,并在需要时将相关数据提供给Shiro。当配置Shiro时,配置多个Realm是可以的,但是至少需要一个。


    二、SpringBoot集成Shiro

    1、依赖配置

    <?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.9.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
        <groupId>com.wjy</groupId>
        <artifactId>shirodemo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>shirodemo</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <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-web</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-data-jpa</artifactId>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <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-devtools</artifactId>
                <scope>runtime</scope>
                <optional>true</optional>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>
    View Code

    2、Shiro配置

    package com.wjy.shirodemo;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
    import org.apache.shiro.mgt.SecurityManager;
    import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
    import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    @Configuration
    public class ShiroConfig {
        @Bean
        public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager) {
            ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
            shiroFilterFactoryBean.setSecurityManager(securityManager);
    
            Map<String, String> filterChainDefinitionMap = new HashMap<String, String>();
            //登录时访问的地址,即没有登录时访问任何页面跳转的地址
            shiroFilterFactoryBean.setLoginUrl("/login");
            //认证未通过访问的地址,即经过认证但是没有相应的权限时跳转的地址
            shiroFilterFactoryBean.setUnauthorizedUrl("/unauthc");
            //设置认证成功之后转向的地址
            shiroFilterFactoryBean.setSuccessUrl("/authc/index");
    
            // /* anon表示不拦截  允许任何人访问
            filterChainDefinitionMap.put("/*", "anon");
            // /authc/index 必须登录才能访问
            filterChainDefinitionMap.put("/authc/index", "authc");
            // /authc/admin  需要有admin角色才能访问
            filterChainDefinitionMap.put("/authc/admin", "roles[admin]");
            // /authc/renewable 需要有Create,Update权限
            filterChainDefinitionMap.put("/authc/renewable", "perms[Create,Update]");
            // /authc/removable需要有Delete权限
            filterChainDefinitionMap.put("/authc/removable", "perms[Delete]");
            shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
            return shiroFilterFactoryBean;
        }
    
        @Bean
        public HashedCredentialsMatcher hashedCredentialsMatcher() {
            HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();
            // 散列算法
            hashedCredentialsMatcher.setHashAlgorithmName(PasswordHelper.ALGORITHM_NAME);
            // 散列次数
            hashedCredentialsMatcher.setHashIterations(PasswordHelper.HASH_ITERATIONS);
            return hashedCredentialsMatcher;
        }
    
        @Bean
        public EnceladusShiroRealm shiroRealm() {
            EnceladusShiroRealm shiroRealm = new EnceladusShiroRealm();
            // 原来在这里
            shiroRealm.setCredentialsMatcher(hashedCredentialsMatcher());
            return shiroRealm;
        }
    
        @Bean
        public SecurityManager securityManager() {
            DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
            securityManager.setRealm(shiroRealm());
            return securityManager;
        }
    
        @Bean
        public PasswordHelper passwordHelper() {
            return new PasswordHelper();
        }
    }

    其他代码参考:githup


    验证:
    (1)注册:http://localhost:8088/register?username=wjy&password=123456

    (2)未登录而访问index:http://localhost:8088/authc/index 会跳转到登录页面: http://localhost:8088/login

    (3)使用错误密码登录:http://localhost:8088/doLogin?username=wjy&password=123

    (4)登录成功:http://localhost:8088/doLogin?username=wjy&password=123456 跳转到http://localhost:8088/authc/index


    参考
    30分钟学会如何使用Shiro 
    30分钟了解Springboot整合Shiro 
    Shiro核心设计思想 

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  • 原文地址:https://www.cnblogs.com/cac2020/p/11700100.html
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