SpringBoot-15-Shiro

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SpringBoot-15-Shiro

1. 简介

1.1 什么是Shiro?

  • Apache Shiro是一个Java安全（权限）框架。
  • Shiro可以非常容易的开发出足够好的应用，其不仅可以在JavaSE环境，也可以在JavaEE中使用
  • Shiro可以完成，认证，授权，加密，会话管理,Web集成，缓存等。
  • 下载地址：http://shiro.apache.org/

1.2 功能简介

Authentication:身份认证/登录,验证用户是不是拥有相应的身份

Authorization:授权,及权限验证,验证某个已认证的用户是否拥有某个权限;即判断用户是否能做事情,常见的如:验证某个用户是否拥有某个角色.或者细粒度的验证某个用户对某个资源是否具有某个权限

Session Manager:会话管理,即用户登陆后就是一次会话,在没有退出之前,它的所有信息都在会话中;会话可以是普通JavaSE环境的,也可以是如Web环境的

Cryptography:加密,保护数据的安全性,如密码加密存储到数据库,而不是明文存储

Web Support:Web支持,可以非常容易的集成到Web环境

Caching:缓存

Concurrency:shiro支持多线程应用的并发验证,即如在一个线程中开启另一个线程,能把权限自动传播过去

Testing:提供测试支持

Run As:允许一个用户假装为另一个用户（如果他们允许）的身份进行访问

Remember Me:记住我

1.3 Shiro架构(Shiro外部来看)

  • Subject: 应用代码直接交互的对象是Subject,也就是说Shiro的对外API核心就是Subject.Subject代表了当前”用户”,这个用户不一定是一个具体的人,与当前应用交互的任何东西都是Subject,如网络爬虫、机器人等;与Subject的所有交互都会委托给SecurityManager;Subject其实是一个门面,SecurityManager才是实际的执行者

  • SecurityManager:安全管理器;即所有与安全有关的操作都会与SecurityManager交互;且其管理着所有Subject;可以看出它是Shiro的核心,它负责与Shiro的其他组件进行交互,它相当于SpringMVC中DispatcherServlet的角色

  • Realm:Shiro从Realm获取安全数据(如用户、角色、权限),就是说SecurityManager要验证用户身份,name它需要从Realm获取响应的用户进行比较以确定用户身份是否合法;也需要从Realm得到用户相应的角色/权限进行验证用户是否能进行操作;也可以把Realm看成DataSource

1.4 Shiro架构(Shiro内部来看)

Subject:任何可以与应用交互的”用户”

SecurityManager:相当与SpringMVC中的DispatcherServlet;是Shiro的心脏;所有具体的交互都通过SecurityManager进行控制;它管理着所有Subject、且负责进行认证、授权、会话及缓存的管理

Authenticator: 负责Subject认证,是一个扩展点,可以自定义实现;可以使用认证策略(Authentication Strategy),即什么情况下算用户认证通过了

Authorizer: 授权器、即访问控制器,用来决定主题是否有权限进行相应的操作;即控制着用户能访问应用中的哪些功能

Realm:可以有一个或多个Realm,可以认为是安全实体数据源,即用户获取安全实体的;可以是JDBC实现,也可以是内存实现等等;由用户提供;所以一般在应用中都需要实现自己的Realm

SessionManager: 管理Session生命周期的组件;而Shiro并不仅仅可以用在Web环境,也可以用在如普通的JavaSE环境

CacheManager: 缓存控制器,来管理如用户、角色、权限等的缓存的;因为这些数据基本上很少改变,放在缓存中可以提供访问的性能

Cryptography: 密码模块,Shiro提高了一些常见的加密组件用于如密码加密/解密

2. QuickStart

十分钟快速开始

Spring集成Shiro

官网教程：http://shiro.apache.org/10-minute-tutorial.html

  1. 导入maven依赖
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<dependencies>
    <dependency>
        <groupId>org.apache.shiro</groupId>
        <artifactId>shiro-core</artifactId>
        <version>1.4.1</version>
    </dependency>

    <!-- configure logging -->
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>jcl-over-slf4j</artifactId>
        <version>1.7.21</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.21</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
</dependencies>
  1. resources下新建log4j.properties
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log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n

# General Apache libraries
log4j.logger.org.apache=WARN

# Spring
log4j.logger.org.springframework=WARN

# Default Shiro logging
log4j.logger.org.apache.shiro=INFO

# Disable verbose logging
log4j.logger.org.apache.shiro.util.ThreadContext=WARN
log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN
  1. resources下新建shiro.ini
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log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n

# General Apache libraries
log4j.logger.org.apache=WARN

# Spring
log4j.logger.org.springframework=WARN

# Default Shiro logging
log4j.logger.org.apache.shiro=INFO

# Disable verbose logging
log4j.logger.org.apache.shiro.util.ThreadContext=WARN
log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN
  1. java目录下新建QuickStart.java
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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.config.IniSecurityManagerFactory;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.Factory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Simple Quickstart application showing how to use Shiro's API.
 *
 * @since 0.9 RC2
 */
public class QuickStart {

    private static final transient Logger log = LoggerFactory.getLogger(QuickStart.class);


    public static void main(String[] args) {

        // The easiest way to create a Shiro SecurityManager with configured
        // realms, users, roles and permissions is to use the simple INI config.
        // We'll do that by using a factory that can ingest a .ini file and
        // return a SecurityManager instance:

        // Use the shiro.ini file at the root of the classpath
        // (file: and url: prefixes load from files and urls respectively):
        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance();

        // for this simple example quickstart, make the SecurityManager
        // accessible as a JVM singleton.  Most applications wouldn't do this
        // and instead rely on their container configuration or web.xml for
        // webapps.  That is outside the scope of this simple quickstart, so
        // we'll just do the bare minimum so you can continue to get a feel
        // for things.
        SecurityUtils.setSecurityManager(securityManager);

        // Now that a simple Shiro environment is set up, let's see what you can do:

        // get the currently executing user:
        Subject currentUser = SecurityUtils.getSubject();

        // Do some stuff with a Session (no need for a web or EJB container!!!)
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Retrieved the correct value! [" + value + "]");
        }

        // let's login the current user so we can check against roles and permissions:
        if (!currentUser.isAuthenticated()) {
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true);
            try {
                currentUser.login(token);
            } catch (UnknownAccountException uae) {
                log.info("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) {
                log.info("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) {
                log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                        "Please contact your administrator to unlock it.");
            }
            // ... catch more exceptions here (maybe custom ones specific to your application?
            catch (AuthenticationException ae) {
                //unexpected condition?  error?
            }
        }

        //say who they are:
        //print their identifying principal (in this case, a username):
        log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");

        //test a role:
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("Hello, mere mortal.");
        }

        //test a typed permission (not instance-level)
        if (currentUser.isPermitted("lightsaber:wield")) {
            log.info("You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        //a (very powerful) Instance Level permission:
        if (currentUser.isPermitted("winnebago:drive:eagle5")) {
            log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
                    "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        //all done - log out!
        currentUser.logout();

        System.exit(0);
    }
}

源码中文注释解读版本：

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.config.IniSecurityManagerFactory;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.Factory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Simple Quickstart application showing how to use Shiro's API.
 *
 * @since 0.9 RC2
 */
public class QuickStart {

    //使用日志门面
    private static final transient Logger log = LoggerFactory.getLogger(QuickStart.class);


    public static void main(String[] args) {



        //读取配置，获取对象
        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance();

        SecurityUtils.setSecurityManager(securityManager);

        //1.获取当前的用户对象Subject
        Subject currentUser = SecurityUtils.getSubject();

        //2. 通过当前用户拿到session
        Session session = currentUser.getSession();
        // session存值
        session.setAttribute("someKey", "aValue");
        // session取值
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Retrieved the correct value! [" + value + "]");
        }

        // 3. 测试当前的用户是否被认证
        if (!currentUser.isAuthenticated()) {
            // Token : 令牌
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            // 设置记住我
            token.setRememberMe(true);
            try {
                currentUser.login(token); //执行了登录操作
            } catch (UnknownAccountException uae) { //未知的用户名异常
                log.info("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) { //密码不对
                log.info("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) { //用户被锁定
                log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                        "Please contact your administrator to unlock it.");
            }
            catch (AuthenticationException ae) { //最大的异常捕获
                //unexpected condition?  error?
            }
        }

        //say who they are:
        //print their identifying principal (in this case, a username):
        log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");

        //test a role:
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("Hello, mere mortal.");
        }

        //test a typed permission (not instance-level)
        // 粗粒度
        if (currentUser.isPermitted("lightsaber:wield")) {
            log.info("You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        //a (very powerful) Instance Level permission:
        // 细粒度
        if (currentUser.isPermitted("winnebago:drive:eagle5")) {
            log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
                    "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        //all done - log out!
        // 用户注销
        currentUser.logout();

        // 结束系统
        System.exit(0);
    }
}

以上Spring security中都有

3. SpringBoot集成Shiro

核心三大对象：

Subject: 用户

SecurityManger: 管理所有用户

Realm: 连接数据

3.1 环境搭建

  1. 导入Jar包
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<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>1.4.1</version>
</dependency>
  1. 编写Config类（ShiroConfig.java）
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package com.zhuuu.config;

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;

@Configuration
public class ShiroConfig {
    // 第三步：
    //ShiroFilterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManger") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        return bean;
    }


    // 第二步：
    //DefaultWebSecurityManager
    //参数是为了和UserRealm绑定起来
    @Bean(name = "securityManger")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        // 关联UserRealm
        securityManager.setRealm(userRealm);
        return securityManager;
    }


    //第一步：创建realm对象：需要自定义类
    @Bean
    public UserRealm userRealm(){
        return new UserRealm();
    }
}
  1. 用户授权和认证（UserRealm.java）
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package com.zhuuu.config;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

//自定义的Realm
public class UserRealm extends AuthorizingRealm {
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了授权 doGetAuthorizationInfo");
        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        System.out.println("执行了验证 doGetAuthorizationInfo");
        return null;
    }
}
  1. 编写对应前端页面

templates/index.html

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

<h1>首页</h1>
<p th:text="${msg}"></p>

<a th:href="@{/user/add}">add</a> | <a href="/user/update">update</a>

</body>
</html>

templates/user/add.html

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

<h1>add</h1>

</body>
</html>

templates/user/update.html

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

<h1>update</h1>

</body>
</html>
  1. 编写对应Controller视图跳转(controller/MyController.java)
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package com.zhuuu.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class MyController {
    @RequestMapping({"/","/index"})
    public String toIndex(Model model){
        model.addAttribute("msg","hello,world");
        return "index";
    }

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

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

3.2 登录拦截

  1. 修改ShiroConfig.java
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public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManger") DefaultWebSecurityManager defaultWebSecurityManager){
    ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
    //设置安全管理器
    bean.setSecurityManager(defaultWebSecurityManager);
    // 添加shiro的内置过滤器
    /*
    * anon:   无需认证就能访问
    * authc:  必须认证才能访问
    * user:   必须拥有记住我功能才能用
    * perms:  拥有对有个资源的权限才能访问
    * role:   拥有某个角色权限才能访问
    * */
    //（登录拦截）
    Map<String, String> fiterChainDefinitionMap = new LinkedHashMap<>();
    fiterChainDefinitionMap.put("/user/add","authc");
    fiterChainDefinitionMap.put("/user/update","authc");

    bean.setFilterChainDefinitionMap(fiterChainDefinitionMap);
    // 设置登录的请求
    bean.setLoginUrl("/toLogin");
    return bean;
}
  1. 设置跳转login页面 （templates/login.html）
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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<h1>登录</h1>
<hr>
<form action="">
    <p>用户名：<input type="text" name="username"></p>
    <p>密码： <input type="text" name="password"></p>
    <p><input type="submit"></p>
</form>

</body>
</html>
  1. Controller层
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@RequestMapping("/toLogin")
public String toLogin(){
    return "login";
}

3.3 登录认证

  1. Controller层进行数据接收认证(controller/MyController.java)
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@RequestMapping("/login")
public String login(String username,String password,Model model){
    //获取当前的用户
    Subject subject = SecurityUtils.getSubject();

    //封装用户的登录数据
    UsernamePasswordToken token = new UsernamePasswordToken(username,password);

    //执行登录方法：验证用户名和密码
    try {
        subject.login(token);
        return "index";
    } catch (UnknownAccountException e){
        model.addAttribute("msg","用户名错误");
        return "login";
    } catch (IncorrectCredentialsException e1){
        model.addAttribute("msg","密码错误");
        return "login";
    }
}
  1. templates/login.html (登录页)
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<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<h1>登录</h1>
<hr>
<p th:text="${msg}" style="color: red;"></p>
<form 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"></p>
</form>

</body>
</html>
  1. 在UserRealm中进行认证判断
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//自定义的Realm
public class UserRealm extends AuthorizingRealm {
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了授权 doGetAuthorizationInfo");
        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了验证 doGetAuthorizationInfo");

        //用户名，密码~ 数据库中取
        String username= "root";
        String password = "123456";

        //拿到登录信息
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;
        if (!userToken.getUsername().equals(username)){
            return null; // 抛出异常 ： UnknownAccountException
        }

        //密码认证： shiro自动做

        return new SimpleAuthenticationInfo("",password,"");
    }
}

3.4 整合MyBatis

  1. 导入依赖
  • Druid数据源
  • mysql驱动
  • log4j
  • mybatis-spring-boot-starter
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<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.19</version>
</dependency>
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.21</version>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.2</version>
</dependency>
  1. application.yml(导入配置文件)
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spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    #Springboot 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
  1. application.properties
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mybatis.type-aliases-package=com.zhuuu.pojo

mybatis.mapper-locations=classpath:mapper/*.xml
  1. pojo/User.java
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package com.zhuuu.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {

    private int id;
    private String pwd;
    private String name;
}
  1. mapper/UserMapper.interface
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package com.zhuuu.mapper;

import com.zhuuu.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

@Mapper
@Repository
public interface UserMapper {
    public User queryUserByName(String name);
}
  1. resources/mapper/UserMapper.xml
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<?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.zhuuu.mapper.UserMapper">

    <select id="queryUserByName" parameterType="String" resultType="User">
        select * from mybatis.user where name = #{name}
    </select>
</mapper>
  1. service层/UserService.interface
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package com.zhuuu.service;

import com.zhuuu.pojo.User;

public interface UserService {
    public User queryUserByName(String name);
}
  1. service/UserServiceImpl.java
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package com.zhuuu.service;

import com.zhuuu.mapper.UserMapper;
import com.zhuuu.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    UserMapper userMapper;

    @Override
    public User queryUserByName(String name) {
        return userMapper.queryUserByName(name);
    }
}
  1. 测试类中测试一下
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package com.zhuuu;

import com.zhuuu.service.UserService;
import com.zhuuu.service.UserServiceImpl;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class Springboot07ShirospringbootApplicationTests {

    @Autowired
    UserServiceImpl userService;

    @Test
    void contextLoads() {
        System.out.println(userService.queryUserByName("zhuuu"));
    }
}

OK，测试成功！

接下来要改造Realm!!!

  1. 改造UserRealm.java
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package com.zhuuu.config;

import com.zhuuu.pojo.User;
import com.zhuuu.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
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;

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

    @Autowired
    UserService userService;


    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了授权 doGetAuthorizationInfo");
        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了验证 doGetAuthorizationInfo");


        //拿到登录信息
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;

        //连接真实数据库
        User user = userService.queryUserByName(userToken.getUsername());
        if (user==null){  //不存在这个用户
            return null; // 抛出异常
        }


        //密码认证： shiro自动做
        //可以加密： md5加密，md5盐值加密

        return new SimpleAuthenticationInfo("",user.getPwd(),"");
    }
}

效果如下：

  1. 访问localhost:8080

  1. 进入页面被拦截

  1. 测试数据库中root用户能否登录

登录验证Debug分析：

  1. 打断点

  1. Debug获取token

  1. 打开加密接口：CredentialsMatcher

  1. 查看加密实现类

3.5 用户授权操作

  1. ShiroConfig.java
  • 添加授权操作
  • 添加未授权页面跳转
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// 第三步：
//ShiroFilterFactoryBean
@Bean
public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManger") DefaultWebSecurityManager defaultWebSecurityManager){
    ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
    //设置安全管理器
    bean.setSecurityManager(defaultWebSecurityManager);
    // 添加shiro的内置过滤器
    /*
    * anon:   无需认证就能访问
    * authe:  必须认证才能访问
    * user:   必须拥有记住我功能才能用
    * perms:  拥有对有个资源的权限才能访问
    * role:   拥有某个角色权限才能访问
    * */
    //（登录拦截）
    Map<String, String> fiterChainDefinitionMap = new LinkedHashMap<>();
    fiterChainDefinitionMap.put("/user/add","authc");
    fiterChainDefinitionMap.put("/user/update","authc");

    //（授权操作）,正常的情况下未授权会401
    fiterChainDefinitionMap.put("/user/add","perms[user:add]");
    fiterChainDefinitionMap.put("/user/update","perms[user:update]");

    bean.setFilterChainDefinitionMap(fiterChainDefinitionMap);

    // 设置登录的请求
    bean.setLoginUrl("/toLogin");

    // 设置未授权页面
    bean.setUnauthorizedUrl("/noauth");

    return bean;
}
  1. Controller层返回未授权页面
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@RequestMapping("/noauth")
@ResponseBody
public String unauthorized(){
    return "未经授权无法访问此页面";
}
  1. 增加授权功能（UserRealm.java）
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//自定义的Realm
public class UserRealm extends AuthorizingRealm {

    @Autowired
    UserService userService;


    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了授权 doGetAuthorizationInfo");

        //SimpleAuthorizationInfo:授权
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        info.addStringPermission("user:add");

        //拿到当前登录的对象
        Subject subject = SecurityUtils.getSubject();
        User currentUser = (User) subject.getPrincipal(); //拿到User对象

        //设置用户权限
        info.addStringPermission(currentUser.getPerms());

        return info;
//        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了验证 doGetAuthorizationInfo");


        //拿到登录信息
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;

        //连接真实数据库
        User user = userService.queryUserByName(userToken.getUsername());
        if (user==null){  //不存在这个用户
            return null; // 抛出异常
        }


        //密码认证： shiro自动做
        //可以加密： md5加密，md5盐值加密

        // 这里传入user是为了给上面的授权 传递信息
        return new SimpleAuthenticationInfo(user,user.getPwd(),"");
    }
}
  1. 修改数据库（新增权限表）

user表新增perms字段：

给用户增加权限：

3.6 整合Thymeleaf

  1. 导入整合包
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<dependency>
    <groupId>com.github.theborakompanioni</groupId>
    <artifactId>thymeleaf-extras-shiro</artifactId>
    <version>2.0.0</version>
</dependency>
  1. shiroconfig.java
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// 整合ShiroDialect:用来整合shiro thymeleaf
@Bean
public ShiroDialect getShiroDialect(){
    return new ShiroDialect();
}
  1. index.html
  • 导入命名空间
  • 修改权限显示
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<!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>Title</title>
</head>
<body>

<h1>首页</h1>

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


<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>
</body>
</html>

结果显示：

root用户正常显示全部页面：

zhuuu用户只显示add权限页面：

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  • 版权声明： 本博客所有文章除特别声明外，均采用 Apache License 2.0 许可协议。转载请注明出处！
  • © 2019-2022 Zhuuu
  • PV: UV:

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