shiro学习记录

2023-11-22 14:32:04

Shiro

一、快速入门

导包

<dependencies>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
            <version>1.7.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>1.7.25</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.12</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
    </dependencies>

配置配置文件

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

shiro.ini

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

Helloworld

完整代码参考博客 https://www.pangtun.com/4819.html

DefaultSecurityManager securityManager = new DefaultSecurityManager();
IniRealm iniRealm = new IniRealm("classpath:shiro.ini");//读取配置文件
securityManager.setRealm(iniRealm);//初始化securityManager
SecurityUtils.setSecurityManager(securityManager);//将securityManager注入到工具类
Subject currentUser = SecurityUtils.getSubject();//创建Subject对象
Session session = currentUser.getSession();//通过Subject获取session
currentUser.isAuthenticated();//判断用户是否认证
currentUser.hasRole("schwartz");//判断用户是否拥有某个角色
currentUser.isPermitted("lightsaber:wield");//判断用户是否有某种权限
currentUser.logout();//注销

二、使用shiro-编写配置类

编写ShiroConfig类分别注册ShiroFilterFactoryBean，DefaultWebSecurityManager，UserRealm三个类

package com.liao.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 {
    //ShiroFilterFactoryBean
    @Bean(name = "shiroFilterFactoryBean")
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean shiroFilterFactoryBean =new ShiroFilterFactoryBean();
        //设置安全管理器
        shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);
        return shiroFilterFactoryBean;
    }

    //DefaultWebSecurityManager
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserRealm对象
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    //创建realm对象  自定义
    @Bean(name = "userRealm")
    public UserRealm getUserRealm(){
        return new UserRealm();
    }
}

2.添加权限认证

shiro内置的过滤器用于拦截请求

anon:无需认证就能访问
authc:必须认证了才能访问
user:必须拥有记住我功能才能访问
perms:必须拥有某个资源的权限才能访问
role:必须拥有某个角色权限才能访问

在shiro的配置类中添加内置的过滤器authc，拦截请求为"/user/add"和"/user/update"，这样，当用户没有认证去访问这两个请求时会跳转到认证界面（登录界面）

Map<String, String> filterMap = new LinkedHashMap<>();//用于封装拦截的请求
filterMap.put("/user/add","authc");
filterMap.put("/user/update","authc");
shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);
shiroFilterFactoryBean.setLoginUrl("/toLogin");//设置跳转的认证界面

认证方式

表单提交到控制器，接收用户名和密码后，封装成令牌，调用subject.login(token)到后台进行验证，令牌会封装到UsernamePasswordToken，在UserRealm中进行验证用户名和密码

controller

@RequestMapping("/login")
public String login(String username,String password,Model model){
    Subject subject = SecurityUtils.getSubject();
    UsernamePasswordToken token = new UsernamePasswordToken(username,password);
    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";
    }
}

UserRealm

@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
    System.out.println("进行了=>认证 doGetAuthorizationInfo");
    //用户名密码验证
    String username = "root";
    String password = "will";
    UsernamePasswordToken token1 = (UsernamePasswordToken)token;
    //验证用户名
    if (!token1.getUsername().equals(username)){
        return null;
    }
    //验证密码
    return new SimpleAuthenticationInfo("",password,"");
}

三、整合mybatis

导包

<!--整合mybatis-->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.27</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version>
</dependency>
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.3</version>
</dependency>

四、授权

在数据库中增加字段，用于记录用户权限，当进行认证时，将查询到的用户，封装成principal对象并且通过SimpleAuthenticationInfo(user,token1.getPassword(),"");方法封装到Subject中，用户通过获取Subject，进而获取到权限信息，并授予用户，最后返回授权info对象

protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
    System.out.println("进行了=>授权 doGetAuthorizationInfo");
    SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
    Subject subject = SecurityUtils.getSubject();
    User currentUser = (User) subject.getPrincipal();
    info.addStringPermission(currentUser.getPerms());
    return info;
}

五、整合thymeleaf

导包

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

配置bean(在ShiroConfig中)

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

前端页面引入命名空间

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

使用方法

可以通过session进行前后端传值，

后端存值代码

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

前端取值代码

<div th:if="${session.user==null}">//若用户登录了，就隐藏标签
    <a th:href="@{/toLogin}" >去登录</a>
</div>
<div shiro:hasPermission="user:add">//当用户有user:add权限时，才显示
    <a th:href="@{/user/add}">add</a>
</div>
<div shiro:hasPermission="user:update">
    <a th:href="@{/user/update}">update</a>
</div>

码农公寓

Shiro

一、快速入门

二、使用shiro-编写配置类

三、整合mybatis

四、授权

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