Shiro简介

什么是Shiro

• Apache Shiro是一个Java的安全（权限）框架.
• Shiro可以非常容易的开发出足够好的应用，其不仅可以用在JavaSE环境，也可以用在JavaEE环境。
• Shiro可以完成，认证，授权，加密，会话管理，Web集成，缓存等。

导入Shiro依赖

<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>1.7.22</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>

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

# Apache库
log4j.logger.org.apache=WARN

# Spring
log4j.logger.org.springframework=WARN

# 默认Shiro日志
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

[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

HelloShiro:简单的快速入门应用程序，展示了如何使用Shiro的API。

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;
/**
 * 简单的快速入门应用程序，展示了如何使用Shiro的API。
 */
public class Quickstart {

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


    public static void main(String[] args) {

        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance();
        SecurityUtils.setSecurityManager(securityManager);


        // get the currently executing user:
        //获得当前用户拿到session
        Subject currentUser = SecurityUtils.getSubject();
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "铁子");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("铁子")) {
            log.info("Subject=>session [" + value + "]");
        }

        // 让我们登录当前用户，这样我们可以检查角色和权限: 判断当前用户是否被认证
        if (!currentUser.isAuthenticated()) {
            //Token：令牌  没有获取，随机
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true);   //设置记住我
            try {
                currentUser.login(token);   //执行登录操作
            } catch (UnknownAccountException uae) {    //未知的用户
                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) {    //密码多少次不对后，会被锁定
                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.");
        }

        //粗粒度
        //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.");
        }

        //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!");
        }

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

        //结束！
        System.exit(0);
    }
}

SpringBoot集成Shiro

第一步导入Shiro整合依赖

        <!--shiro-thymeleaf整合-->
        <dependency>
            <groupId>com.github.theborakompanioni</groupId>
            <artifactId>thymeleaf-extras-shiro</artifactId>
            <version>2.0.0</version>
        </dependency>
		<!--shiro整合spring的包-->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.0-RC2</version>
        </dependency>

编写Shiro核心配置

ShiroConfig

package com.jizi.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
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;

/**
 * @author 宋朝阳
 * @create 2020 -11 -28 21:31
 */
@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);

        //添加shiro的内置过滤器
        /*
             anon：无需认证就可以访问
             authc：必须认证了才能让问
             user：必循拥有 记住我 功能才能用
             perms：拥有堆某个资源的权限才能访问
             rolle：拥有某个角色权限才能访问
         */
        //        filterMap.put("/user/add","authc");
        //        filterMap.put("/user/update","authc");
        Map<String, String> 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[门诊管理员]");
        filterMap.put("/user/update","perms[CEO]");

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

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

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

        return bean;
    }

    //DafaultWebSecurityManager:2
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager defaultWebSecurityManager(@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:1
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }

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

UserRealm:自定义的UserRealm

package com.jizi.config;

import com.jizi.pojo.SysUser;
import com.jizi.service.UserServiceImpl;
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.session.Session;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;

/**
 * @author 宋朝阳
 * @create 2020 -11 -28 21:33
 */

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

    @Autowired
    UserServiceImpl userService;

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

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

        //设置当前用户权限
        info.addStringPermission(currentUser.getPosition());

        return info;
    }

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

        //令牌
        UsernamePasswordToken userrToken = (UsernamePasswordToken) token;

        //从数据库中获取用户名，密码

        SysUser sysUser = userService.queryUser(userrToken.getUsername());

        if (sysUser==null){   //没有这个人
            return null;   //UnknownAccountException
        }

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

        //可以加密： M5：21232F297A57A5A743894A0E4A801FC3            MD5盐值加密：21232F297A57A5A743894A0E4A801FC3username
        return new SimpleAuthenticationInfo(sysUser,sysUser.getPwd(),"");
    }
}

controller

package com.jizi.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * @author 宋朝阳
 * @create 2020 -11 -28 21:16
 */
@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 udate(){
        return "user/update";
    }

    @RequestMapping("/toLogin")
    public String toLogin(){
        return "login";
    }

    @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);

        try {
            subject.login(token);  //执行登录方法，如果没有异常就说明OK了


            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";
        }
    }

    @RequestMapping("/noauth")
    @ResponseBody
    public String unauthorized(){
        return "未经授权无法访问此页面";
    }
}

Shiro练习项目地址：下载链接

本文地址：https://blog.csdn.net/yang13676084606/article/details/110291161