Shiro快速入门

Shiro

Shiro概念

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。
●下载地址: http://shiro.apache.org/

Shiro官网

Shiro的功能

Shiro功能

Authentication: 身份认证、登录,验证用户是不是拥有相应的身份;
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!
Session Manager: 会话管理,即用户登录后就是第-次会话,在没有退出之前,它的所有信息都在会话中;会话可以是普通的JavaSE环境,也可以是Web环境;
Cryptography: 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;
Web Support: Web支持,可以非常容易的集成到Web环境;
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
Concurrency: Shiro支持多线程应用的并发验证,即,如在-个线程中开启另-一个线程,能把权限自动的传
播过去
Testing:提供测试支持;
RunAs: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,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

Shiro架构(外部)

Shiro架构

从外部来看Shiro,即从应用程序角度来观察如何使用shiro完成工作:

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其实是一一个门面, SecurityManageer 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, 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SpringMVCDispatcherServlet的角色
Realm: ShiroRealm获取安全数据 (如用户,角色,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RealmDataSource;

Shiro架构(内部)

Shiro架构(内部)

Subject: 任何可以与应用交互的用户。
Security Manager:相当于SpringMVC中的DispatcherSerlet; 是Shiro的心脏, 所有具体的交互都通过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。
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。
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,也可以用在普通的JavaSE环境中。
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。
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。

Shiro快速开始

准备工作

创建一个普通maven项目shiro-study,然后删除src目录,这样的话就可以在这个项目里新建很多model。

在shiro-study里新建model名为hello_shiro。

pom.xml中添加依赖

<dependencies>
    <!-- apache 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>1.7.21</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>

log4j.properties中配置

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中配置

[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

Quickstart.java

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);
    }

}

启动

2020-11-04 09:13:59,275 INFO [org.apache.shiro.session.mgt.AbstractValidatingSessionManager] - Enabling session validation scheduler... 
2020-11-04 09:14:00,629 INFO [Quickstart] - Retrieved the correct value! [aValue] 
2020-11-04 09:14:00,630 INFO [Quickstart] - User [lonestarr] logged in successfully. 
2020-11-04 09:14:00,631 INFO [Quickstart] - May the Schwartz be with you! 
2020-11-04 09:14:00,631 INFO [Quickstart] - You may use a lightsaber ring.  Use it wisely. 
2020-11-04 09:14:00,632 INFO [Quickstart] - You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  Here are the keys - have fun! 

SpringBoot整合Shiro环境搭建

新建SpringBoot项目,勾选webthymeleaf

测试源代码:https://gitee.com/ShiQingning/shiro-study.git

pom.xml添加依赖

<!--shiro-->
<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>1.5.3</version>
</dependency>
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>
<!--shiro-thymeleaf整合-->
<dependency>
    <groupId>com.github.theborakompanioni</groupId>
    <artifactId>thymeleaf-extras-shiro</artifactId>
    <version>2.0.0</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.20</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.22</version>
</dependency>
<!--引入mybatis,这是Mybatis官方提供的适配SpringBoot的,而不是SpringBoot自己的-->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.1</version>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.12</version>
</dependency>

application.yml

spring:
  datasource:
    username: root
    password: 1qaz!QAZ
    #?serverTimezone=UTC解决时区的报错
    url: jdbc:mysql://localhost:3306/shiro?userSSL=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
    driver-class-name: com.mysql.cj.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

  thymeleaf:
    cache: false

mybatis:
  type-aliases-package: com.sqn.pojo
  mapper-locations: classpath:mapper/*.xml

config包下新建ShiroConfig.javaUserRealm.java

ShiroConfig.java

package com.sqn.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.codec.Base64;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.CookieRememberMeManager;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.apache.shiro.web.servlet.OncePerRequestFilter;
import org.apache.shiro.web.servlet.SimpleCookie;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.Filter;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    //ShiroFilterFactoryBean : Step3
    @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
        /*
            anno: 无需认证就可以访问
            authc: 必须认证了才可以访问
            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问
            role: 拥有某个角色权限才能访问
        */

        //设置登录请求 登录提交地址
        bean.setLoginUrl("/toLogin");
        //设置未授权页面 访问没有授权的资源
        bean.setUnauthorizedUrl("/noAuth");

        Map<String, String> filterMap = new LinkedHashMap<>();

        //用户授权,正常情况下没有授权会跳转到授权页面
        filterMap.put("/user/add", "perms[user:add]");
        filterMap.put("/user/update", "perms[user:update]");

        //配置退出(记住我状态下,可清除记住我的cookie)
        filterMap.put("/logout", "logout");

        //拦截
        //filterMap.put("/user/add","authc");
        //filterMap.put("/user/update","authc");
        //所有路径必须授权访问(登录),且必须放在最后
        filterMap.put("/user/*", "authc");

        bean.setFilterChainDefinitionMap(filterMap);

        //解决session丢失
        Map<String, Filter> fmap = new HashMap<>();
        fmap.put("addPrincipal", addPrincipalToSessionFilter());
        bean.setFilters(fmap);

        return bean;

    }

    //DefaultWebSecurityManager : Step2
    @Bean("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, 需要自定义类:Step1
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }

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

    /**
     * Shiro自定义过滤器(解决session丢失)
     *
     * @return
     */
    @Bean
    public OncePerRequestFilter addPrincipalToSessionFilter() {
        return new AddPrincipalToSessionFilter();
    }

    /**
     * cookie管理对象
     *
     * @return
     */
    @Bean
    public CookieRememberMeManager rememberMeManager() {
        CookieRememberMeManager cookieRememberMeManager = new CookieRememberMeManager();
        cookieRememberMeManager.setCookie(rememberMeCookie());
        //rememberMe cookie加密的密钥 建议每个项目都不一样 默认AES算法 密钥长度(128 256 512 位)
        cookieRememberMeManager.setCipherKey(Base64.decode("4AvVhmFLUs0KTA3Kprsdag=="));
        return cookieRememberMeManager;
    }

    @Bean
    public SimpleCookie rememberMeCookie() {
        //这个参数是cookie的名称,对应前端的checkbox的name = rememberMe
        SimpleCookie simpleCookie = new SimpleCookie("rememberMe");
        //setcookie的httponly属性如果设为true的话,会增加对xss防护的安全系数。它有以下特点:
        //setcookie()的第七个参数
        //设为true后,只能通过http访问,javascript无法访问
        //防止xss读取cookie
        simpleCookie.setHttpOnly(true);
        simpleCookie.setPath("/");
        //记住我cookie生效时间 ,单位秒
        simpleCookie.setMaxAge(30);
        return simpleCookie;
    }

}

UserRealm.java

import com.sqn.pojo.User;
import com.sqn.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;

//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 info = new SimpleAuthorizationInfo();
        // 拿到当前登录的这个对象
        Subject subject = SecurityUtils.getSubject();
        // 拿到User对象
        User currentUser = (User) subject.getPrincipal();
        // 分割字符串,得到权限数组
        String[] Perms = currentUser.getPerms().split(",");
        // 权限数组转化为set
        Set<String> permissionsSet = new HashSet<>(Arrays.asList(Perms));
        // 设置当前用户的权限
        info.addStringPermissions(permissionsSet);
        // 权限放入session
        SecurityUtils.getSubject().getSession().setAttribute("permissions", permissionsSet);
        System.out.println(currentUser.getName() + "的权限为 " + permissionsSet);

        return info;
    }

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

        UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
        //连接真实的数据库
        User user = userService.queryUserByName(userToken.getUsername());
        if (user == null) {
            //没有这个人
            return null; //抛出异常 UnknownAccountException
        }

        // 登录成功 将用户信息存入session
        Subject currentSubject = SecurityUtils.getSubject();
        Session session = currentSubject.getSession();
        session.setAttribute("loginUser", user);

        // 密码认证,shiro做
        return new SimpleAuthenticationInfo(user, user.getPassword(), "");
    }
}

AddPrincipalToSessionFilter.java

package com.sqn.config;

import com.sqn.pojo.User;
import com.sqn.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.servlet.OncePerRequestFilter;
import org.springframework.beans.factory.annotation.Autowired;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.IOException;

/**
 * 解决session丢失
 */
public class AddPrincipalToSessionFilter extends OncePerRequestFilter {
    @Autowired
    UserService userService;

    @Override
    protected void doFilterInternal(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws ServletException, IOException {
        //查询当前用户的信息
        Subject subject = SecurityUtils.getSubject();
        //判断用户是不是通过自动登录进来的
        if (subject.isRemembered()) {
            User user2 = (User) subject.getPrincipal();
            String userName = user2.getName();
            System.out.println(userName + "..........");
            if (userName == null) {
                return;
            }
            //根据用户名查询该用户的信息
            User user = userService.queryUserByName(userName);
            if (user == null) return;
            //由于是继承的OncePerRequestFilter,没办法设置session
            //这里发现可以将servletReques强转为子类,所以使用request.getsiion())
            HttpServletRequest request = (HttpServletRequest) servletRequest;
            HttpSession session = request.getSession();
            //当session为空的时候
            if (session.getAttribute("user") == null) {
                //把查询到的用户信息设置为session,时效为3600秒
                session.setAttribute("user", user);
                session.setMaxInactiveInterval(3600);
            }
        }
        filterChain.doFilter(servletRequest, servletResponse);
    }
}

下面为测试例子代码

templates下新建index.html

<!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>
<h1 th:text="${msg}"></h1>
<!--从session中判断值-->
<div th:if="${session.loginUser == null}">
    <a th:href="@{/toLogin}">登录</a>
</div>
<div>
    <span th:text="${session.loginUser.name}"></span>
    的权限为:<span th:text="${session.permissions}"></span>
</div>

<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>

login.html

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

<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="password" name="password"></p>
    <p><input type="checkbox" name="rememberMe"/>记住我</p>
    <p><input type="submit"></p>
</form>

</body>
</html>

controller包下新建MyController.java

package com.sqn.controller;

import com.sqn.pojo.User;
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.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.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@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";
    }

    @RequestMapping("/login")
    public String login(@RequestParam("rememberMe") boolean rememberMe, @RequestParam("username") String name, @RequestParam("password") String password, Model model) {
        try {
            //获取当前的用户
            Subject subject = SecurityUtils.getSubject();
            //封装用户的登录数据
            UsernamePasswordToken token = new UsernamePasswordToken(name, password);
            //设置记住我
            ((UsernamePasswordToken) token).setRememberMe(rememberMe);
            //执行登录方法,如果没有异常就说明OK了
            subject.login(token);
            //从Shiro中拿出User对象
            User user = (User) SecurityUtils.getSubject().getPrincipal();
            System.out.println("----------" + ((UsernamePasswordToken) token).isRememberMe());
            System.out.println("登录成功!");
        } catch (UnknownAccountException accountException) {
            // 用户名不存在
            model.addAttribute("msg", "用户名错误");
            return "login";
        } catch (IncorrectCredentialsException e) {
            // 密码错误
            model.addAttribute("msg", "密码错误");
            return "login";
        }
        //重定向到另一个控制器请求返回主页面
        return "redirect:/index";
    }

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

}

pojo包下新建user.java.

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

import java.io.Serializable;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User implements Serializable {

    private static final long serialVersionUID = 123456789L;

    private int id;
    private String name;
    private String password;
    private String perms;

}

mapper包下新建UserMapper.java

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

@Repository
@Mapper
public interface UserMapper {

    public User queryUserByName(String name);

}

resources包下新建mapper包,并在mapper包下新建UserMapper.xml

UserMapper.xml

<?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">

<!--namespace=绑定一个指定的Dao/Mapper接口-->
<mapper namespace="com.sqn.mapper.UserMapper">
    <select id="queryUserByName" resultType="user" parameterType="String">
        select *
        from user
        where name = #{name}
    </select>
</mapper>

service包下新建接口UserService.interface和实现类UserServiceImpl.java

UserService.interface

import com.sqn.pojo.User;

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

UserServiceImpl.java

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

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    UserMapper mapper;

    public User queryUserByName(String name) {
        return mapper.queryUserByName(name);
    }
}
原文地址:https://www.cnblogs.com/qingningshi/p/14831002.html