SpringBoot微服务开发——Shiro(安全)

文章目录

• SpringBoot微服务开发——Shiro(安全)
• • Shiro(安全)
  • • 1、Shiro简介
    • 2、Shiro有哪些功能?
    • 3、Shiro架构(外部)
    • 4、Shiro架构(内部)
    • 5、进入实践
    • • 1、导入依赖
      • 2、配置文件
      • 3、测试Quickstart
    • 6、SpringBoot整合Shiro环境搭建
    • 7、shiro实现登录拦截
    • 8、Shiro实现用户认证
    • 9、Shiro整合Mybatis
    • 10、Shiro请求授权实现
    • • 1、授权正常的情况下，没有授权会跳转到未授权页面
      • 2、授予可以访问的权限
      • 3、一般在数据库里添加权限的字段，修改数据库，和实体类

Shiro(安全)

1、Shiro简介

Apache Shiro是一个强大且易用的Java安全框架,执行身份验证、授权、密码和会话管理。使用Shiro的易于理解的API,您可以快速、轻松地获得任何应用程序,从最小的移动应用程序到最大的网络和企业应用程序。

Shiro可以非常容易的开发出足够好的应用，不仅可以用在JavaSE环境，也可以用在JavaEE环境。

下载地址: http://shiro.apache.org/

2、Shiro有哪些功能

1. Authentication: 身份认证、登录,验证用户是不是拥有相应的身份;
2. Authorization:授权，即权限验证，验证某个已认证的用户是否拥有某个权限，即判断用户能否进行什么操
3. 作,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!
4. Session Manager:会话管理，即用户登录后就是第一次会话，在没有退出之前，它的所有信息都在会话中;
5. 会话可以是普通的avaSE环境，也可以是Web环境;
6. Cnyptography: 加密，保护数据的安全性，如密码加密存储到数据库中，而不是明文存储;
7. Web Support: Web支持，可以非常容易的集成到Web环境;
8. Caching: 缓存，比如用户登录后，其用户信息,拥有的角色、权限不必每次去查,这样可以提高效率
9. 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，能把权限自动的传
   播过去
10. Testing:提供测试支持;
11. Run As: 允许一 个用户假装为另- -个用户(如果他们允许)的身份进行访问;
12. Remember Me:记住我，这个是非常常见的功能，即一次登录后，下次再来的话不用登录了

3、Shiro架构(外部)

1. 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
   前的用户，这个用户不-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， SecurityManageer 才是
   实际的执行者
2. SecurityManager: 安全管理器，即所有与安全有关的操作都会与SercurityManager交互，并且它管理着所有
   的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的
   DispatcherServlet的角色
3. Realm: Shiro从Realm获取安全数据 (如用户,色，权限)，就是说SecurityManager 要验证用户身份,
   那么它需要从Realm获取相应的用户进行比较，来确定用户的身份是否合法;也需要从Realm得到用户相应的
   角色、权限，进行验证用户的操作是否能够进行，可以把Realm看成DataSource;

4、Shiro架构(内部)

1. Subject: 任何可以与应用交互的"用户;3
2. Security Manager:相当于SpringMVC中的DispatcherServlet;是Shiro的心脏，所有具体的交互都通过
3. Security Manager进行控制，它管理者所有的Subject,且负责进行认证，授权，会话，及缓存的管理。
4. Authenticator: 负责Subject认证，是一一个扩 展点，可以自定义实现;可以使用认证策略(AuthenticationStrategy)，即什么情况下算用户认证通过了;
5. Authorizer:授权器，即访问控制器，用来决定主体是否有权限进行相应的操作;即控制着用户能访问应用中
   的那些功能;
6. Realm: 可以有一个或者多个的realm,可以认为是安全实体数据源，即用于获取安全实体的，可以用DBC实
   现，也可以是内存实现等等,由用户提供;所以- -般在应用中都需要实现自己的realm
7. SessionManager: 管理Session生命周期的组件,而Shiro并不仅仅可以用在Web环境，也可以用在普通的
   JavaSE环境中
8. CacheManager: 缓存控制器,来管理如用户，角色，权限等缓存的;因为这些数据基本上很少改变,放到缓
   存中后可以提高访问的性能;
9. Cryptography:密码模块, Shiro 提高了一些常见的加密组件用于密码加密， 解密等

5、进入实践

打开官网文档: http://shiro.apache.org//tutorial.html

1. 创建一个普通的maven父工程
2. 创建一个普通的Maven子工程: shiro-01-helloworld
3. 根据官方文档，我们来导入Shiro的依赖

1、导入依赖

    
    
        org.apache.shiro
        shiro-core
        1.8.0
    


    
    
        org.slf4j
        jcl-over-slf4j
        1.7.21
    
    
        org.slf4j
        slf4j-log4j12
        1.7.21
    
    
    
        org.apache.logging.log4j
        log4j-core
        2.14.1
    


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2、配置文件

resources目录下

log4j.properties

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
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shiro.ini，需要安装ini插件

[users]
# user 'root' with password 'secret' and the 'admin' role
root = secret, admin
# user 'guest' with the password 'guest' and the 'guest' role
guest = guest, guest
# user 'presidentskroob' with password '12345' ("That's the same combination on
# my luggage!!!" ;)), and role 'president'
presidentskroob = 12345, president
# user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz'
darkhelmet = ludicrousspeed, darklord, schwartz
# user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz'
lonestarr = vespa, goodguy, schwartz

# -----------------------------------------------------------------------------
# Roles with assigned permissions
#
# Each line conforms to the format defined in the
# org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc
# -----------------------------------------------------------------------------
[roles]
# 'admin' role has all permissions, indicated by the wildcard '*'
admin = *
# The 'schwartz' role can do anything (*) with any lightsaber:
schwartz = lightsaber:*
# The 'goodguy' role is allowed to 'drive' (action) the winnebago (type) with
# license plate 'eagle5' (instance specific id)
goodguy = winnebago:drive:eagle5
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3、测试Quickstart

/*
 * 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 {

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

        // Do some stuff with a Session (no need for a web or EJB container!!!)
        //通过当前对象获取当前用户的Session
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        //将aValue的session保存在someKey中
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Subject==》session [" + value + "]");
        }

        // let's login the current user so we can check against roles and permissions:
        //判断当前的用户是否被认证
        if (!currentUser.isAuthenticated()) {
            //Token 令牌
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true);
            try {
                currentUser.login(token); //执行 登录操作
            } catch (UnknownAccountException uae) {//未知账号
                log.info("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) {//密码错误
                log.info("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) {  //锁定账号
                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) { //认证异常
                //unexpected condition?  error?
            }
        }

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

        //test a role:
        //测试角色  判断当前用户是什么角色
        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)
        //简单 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.");
        }

        //细粒度
        //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!
        //注销
        currentUser.logout();

        //结束
        System.exit(0);
    }
}
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这些功能在Spring-Secutiry都有

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

    //通过当前对象获取当前用户的Session
   Session session = currentUser.getSession();
   
   //判断当前的用户是否被认证
   currentUser.isAuthenticated()
   
	//获取当前用户信息
   currentUser.getPrincipal()
   
     //测试角色  判断当前用户是什么角色
   currentUser.hasRole("schwartz")
   
   currentUser.isPermitted("lightsaber:wield")
   
     //注销
currentUser.logout();
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6、SpringBoot整合Shiro环境搭建

导入相关依赖

        
            org.apache.shiro
            shiro-core
            1.8.0
        



        
            org.apache.shiro
            shiro-spring
            1.8.0
        

        
        
            org.thymeleaf
            thymeleaf-spring5
        
        
            org.thymeleaf.extras
            thymeleaf-extras-java8time
        
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测试SpringBoot环境是否搭建成功

    
    


首页



add

update


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controller层

@RequestMapping({"/","/index"})
public String ToIndex(Model model){
    model.addAttribute("msg","hello Shiro");
    return "index";
}
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测试SpringBoot整合Shiro环境搭建成功

Shiro配置

package com.kk.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 UserRealm         extends AuthorizingRealm
public class UserRealm extends AuthorizingRealm {

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


    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        System.out.println("执行科=》认证doGetAuthenticationInfo");
        return null;
    }
}
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ShiroConfig

package com.kk.config;

import org.apache.shiro.mgt.DefaultSecurityManager;
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 java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {


    //ShiroFilterFactortBean  第三步
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        return bean;

    }


    //DefaultWebSecurityManager  第二步
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultwebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //.关联UserReaLm
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    //创建 realm 对象  需要自定义  第一步
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }





}
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MyController

package com.kk.controller;

import org.springframework.jmx.export.annotation.ManagedResource;
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 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";
    }



}
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index.html

    
    


首页



add

update


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add.html

    
    


add


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update.html

    
    


update


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7、shiro实现登录拦截

package com.kk.config;

import org.apache.shiro.mgt.DefaultSecurityManager;
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 java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {


    //ShiroFilterFactortBean  第三步
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") 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 拥有某个资源的权限才能访问
       role 拥有某个角色的权限才能访问
         */
        Map filterMap = new LinkedHashMap<>();
        filterMap.put("/user/add", "authc");
        filterMap.put("/user/update", "authc");
        bean.setFilterChainDefinitionMap(filterMap);

        //如果没有权限 ，则跳转到登陆页面
        bean.setLoginUrl("/toLogin");

        return bean;

    }


    //DefaultWebSecurityManager  第二步
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultwebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //.关联UserReaLm
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    //创建 realm 对象  需要自定义  第一步
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }


}
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login.html

    
    


登陆


  
用户名:
  
密码:
  







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MyController

@RequestMapping("/toLogin")
public String toLogin(){
    return "login";
}
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8、Shiro实现用户认证

MyController

@RequestMapping("/login")
public String login(String username,String password,Model model){
    //获取当前的用户
    Subject subject = SecurityUtils.getSubject();
    //封装登陆用户的登陆数据
    UsernamePasswordToken token = new UsernamePasswordToken(username, password);

    try{
        subject.login(token);//执行登陆方法，如果没有异常就说明ok
        return "index";
    }catch (UnknownAccountException e){//用户名不存在
        model.addAttribute("msg","用户名错误");
        return "login";
    }catch (IncorrectCredentialsException e){//密码不存在
        model.addAttribute("msg","密码错误");
        return "login";
    }

}
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login.html

    
    


登陆



  
用户名:
  
密码:
  







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UserRealm

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

    //用户名 密码 ---数据库
    String name="root";
    String password="123456";

    UsernamePasswordToken userToken = (UsernamePasswordToken) token;

    if (!userToken.getUsername().equals(name)){
        return null;//抛出异常UnknownAccountException

    }

    //密码认证  shiro
    return new SimpleAuthenticationInfo("",password,"");

}
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9、Shiro整合Mybatis

导入依赖

        
            mysql
            mysql-connector-java
        

        
            log4j
            log4j
            1.2.17
        

        
            com.alibaba
            druid
            1.2.6
        


        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            2.2.0
        
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2.连接数据库application.yml

spring:
  datasource:
    username: root
    password: 981204
    #?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.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
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3.设置application.properties

# 整合mybatis
mybatis.type-aliases-package=com.kk.pojo
mybatis.mapper-locations=classpath:mapper/*.xml
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4.实体类

package com.kk.pojo;

public class User {

    private int id;
    private String name;
    private String pwd;

    public User() {
    }

    public User(int id, String name, String pwd) {
        this.id = id;
        this.name = name;
        this.pwd = pwd;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPwd() {
        return pwd;
    }

    public void setPwd(String pwd) {
        this.pwd = pwd;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + ''' +
                ", pwd='" + pwd + ''' +
                '}';
    }
}
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5.UserMapper

package com.kk.mapper;

import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

@Repository
@Mapper
public class UserMapper {

    public User queryUserByName(String name);
}
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6.UserMapper.xml

    
        select * from mybatis.user where name = #{name}
    


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7.UserService

public interface UserService {
    public User queryUserByName(String name);
}
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8.UserServiceImpl

package com.kk.service;

import org.springframework.stereotype.Service;

@Service
public class UserServiceImp implements UserService{
    @Autowired
    UserMapper userMapper;
    
    @Override
    public User queryUserByName(String name) {
        return userMapper.queryUserByName(name);
    }
}
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9.测试查出对应User

@SpringBootTest
class ShiroSpringbootApplicationTests {
@Autowired
    UserServiceImpl userService;
    @Test
    void contextLoads() {
        System.out.println(userService.queryUserByName("雏田"));
    }
}
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10、测试成功后 将数据绑定到安全配置中，再次启动配置

package com.kk.config;


import com.kk.pojo.User;
import com.kk.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 UserRealm         extends AuthorizingRealm
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=》认证doGetAuthenticationInfo");
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;


        //连接真实数据库
        User user = userService.queryUserByName(userToken.getUsername());


     if (user==null){ //没有这个用户
         return null; //抛出异常UnknownAccountException

     }

        //密码认证  shiro
        //可以加密 MD5加密 MD5盐值加密
        return new SimpleAuthenticationInfo("",user.getPwd(),"");

    }
}
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10、Shiro请求授权实现

1、授权正常的情况下，没有授权会跳转到未授权页面

package com.kk.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;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {
    //ShiroFilterFactoryBean:3
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        /*anon:无需认 证就可以访问
        authc:必须认证了 才能让问
        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间:
        role:拥有某 个角色权限才能访问
        */
        Map filterMap = new LinkedHashMap<>();

        //授权,正常的情况下，没有授权会跳转到未授权页面
        filterMap.put("/user/add", "perms[user:add]");
        filterMap.put("/user/update", "perms[user:update]");
        //第二个为权限，只有persm=user:add/user:update] 才可能进入相应的页面

        filterMap.put("/user/*", "authc");
        //filterMap.put("/user/add", "authc");
        //filterMap.put("/user/update", "authc");
        bean.setFilterChainDefinitionMap(filterMap);

        //设置获录的请求
        bean.setLoginUrl("/toLogin");
        //未授权页面
        bean. setUnauthorizedUrl("/noauth");


        return bean;

    }




    //Dafaul tWebSecurityManager:2
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultwebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserReaLm
        securityManager.setRealm(userRealm);
        return securityManager;
    }



    //创建UserRealm对象，需要自定义类:1
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }
}
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controller

@RequestMapping("/noauth")
@ResponseBody
public String unauthorized() {
    return "未经授权无法访问此页面";
}
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2、授予可以访问的权限

package com.kk.config;

import com.kk.pojo.User;
import com.kk.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
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;

public class UserRealm extends AuthorizingRealm {
    @Autowired
    UserService userService;

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了=》授权doGetAuthorizationInfo");
        //SimpleAuthorizationInfo
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        info.addStringPermission("user:add");
     
        return info;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了=》验证doGetAuthorizationInfo");
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;
        //连接真实的数据库
        User user = userService.queryUserByName(userToken.getUsername());
        if (user == null) { //没有这个用户
            return null; //UnknownAccountException
        }
        //可以加密: MD5: e10adc3949ba59abbe56e057f20f883e MD5 盐值加密: e10adc3949ba59abbe56e057f20f883eusername
        //密码认证, shiro 做~
        return new SimpleAuthenticationInfo("", user.getPwd(), "");


    }
}
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3、一般在数据库里添加权限的字段，修改数据库，和实体类

实体类

private int id;
    private String name;
    private String pwd;
    private String perms;
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UserRealm实现授权的分配

package com.kk.config;

import com.kk.pojo.User;
import com.kk.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
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;

public class UserRealm extends AuthorizingRealm {
    @Autowired
    UserService userService;

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行了=》授权doGetAuthorizationInfo");
        //SimpleAuthorizationInfo
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        //info.addStringPermission("user:add");
        //拿到当登录 的这个对象
        Subject subject = SecurityUtils.getSubject();
        User currentUser = (User) subject.getPrincipal(); //拿到User对象
        //设置当前用户的权限
        info.addStringPermission(currentUser.getPerms());
        return info;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了=》验证doGetAuthorizationInfo");
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;
        //连接真实的数据库
        User user = userService.queryUserByName(userToken.getUsername());
        if (user == null) { //没有这个用户
            return null; //UnknownAccountException
        }
        //可以加密: MD5: e10adc3949ba59abbe56e057f20f883e MD5 盐值加密: e10adc3949ba59abbe56e057f20f883eusername
        //密码认证, shiro 做~
        return new SimpleAuthenticationInfo(user, user.getPwd(), "");


    }
}
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3.使用shirothymeleaf

在html页面中导入

xmlns:shiro="http://www.thymeleaf.org/thymeleaf-extras-shiro





    
    


首页

    登录




    add


    update




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4.测试

存在登录按钮的问题

UserRealm中添加session

@Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了=》验证doGetAuthorizationInfo");
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;
        //连接真实的数据库
        User user = userService.queryUserByName(userToken.getUsername());
        if (user == null) { //没有这个用户
            return null; //UnknownAccountException
        }


        Subject currentSubject = SecurityUtils.getSubject();
        Session session = currentSubject.getSession();
        session.setAttribute("loginUser",user);



        //可以加密: MD5: e10adc3949ba59abbe56e057f20f883e MD5 盐值加密: e10adc3949ba59abbe56e057f20f883eusername
        //密码认证, shiro 做~
        return new SimpleAuthenticationInfo(user, user.getPwd(), "");


    }
}
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index.html

    
    


首页

    登录





    add


    update




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项目结构

nInfo");
UsernamePasswordToken userToken = (UsernamePasswordToken) token;
//连接真实的数据库
User user = userService.queryUserByName(userToken.getUsername());
if (user == null) { //没有这个用户
return null; //UnknownAccountException
}

    Subject currentSubject = SecurityUtils.getSubject();
    Session session = currentSubject.getSession();
    session.setAttribute("loginUser",user);



    //可以加密: MD5: e10adc3949ba59abbe56e057f20f883e MD5 盐值加密: e10adc3949ba59abbe56e057f20f883eusername
    //密码认证, shiro 做~
    return new SimpleAuthenticationInfo(user, user.getPwd(), "");


}
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}

index.html

```html



    
    


首页

    登录





    add


    update




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项目结构

[外链图片转存中…(img-z1gsNvzb-1634195014031)]