（二）手写一个简单的shiro实例

布满荆棘的人生 2023-10-18 12:26 8阅读 0赞

注：这里只是简单地写个demo，旨在理解shiro，在实际开发中并不会这么写。

**1、新建一个Java项目，并导入以下jar包**

*  log4j-1.2.7.jar
 *  shiro-all-1.3.2.jar
 *  slf4j-api-1.7.25.jar
 *  slf4j-log4j12-1.7.25.jar

**2、 在src目录下创建 log4j.properties和shiro.ini两个配置文件**  
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=TRACE
    # 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]
    # '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

**3、创建Quickstart类**

package com.lyz.shiro;
    
    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;
    
    public class Quickstart {
        private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);
    
        public static void main(String[] args) {
            //创建securityManager工厂  读取shiro的配置文件
            Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
            //获取SecurityManager实例
            SecurityManager securityManager = factory.getInstance();
            //将securityManager设置到运行环境中
            SecurityUtils.setSecurityManager(securityManager);
            // 获取当前的subject
            Subject currentUser = SecurityUtils.getSubject();
            //测试session
            //获取session
            Session session = currentUser.getSession();
            //设置session
            session.setAttribute("someKey", "aValue");
            String value = (String) session.getAttribute("someKey");
            //判断session中是否有aValue这个值
            if (value.equals("aValue")) {
                log.info("-->Retrieved the correct value! [" + value + "]");
            }
    
            // 判断当前用户是否被认证
            if (!currentUser.isAuthenticated()) {//认证失败
                //将用户名和密码封装到token中
                UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
                //记住我
                token.setRememberMe(true);
                try {
                    //执行登录
                    currentUser.login(token);
                } catch (UnknownAccountException uae) {//没有指定的用户
                    log.info("There is no user with username of " + token.getPrincipal());
                } catch (IncorrectCredentialsException ice) {//若账户存在，但密码不匹配，则抛出这个异常
                    log.info("Password for account " + token.getPrincipal() + " was incorrect!");
                } catch (LockedAccountException lae) {//用户被锁定异常
                    log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                            "Please contact your administrator to unlock it.");
                } catch (AuthenticationException ae) {//所有认证异常的父类
                    //unexpected condition?  error?
                }
            }
            //用户认证成功
            log.info("===User [" + currentUser.getPrincipal() + "] logged in successfully.");
    
            //测试某个角色:
            if (currentUser.hasRole("schwartz")) {
                log.info("-->May the Schwartz be with you!");
            } else {
                log.info("Hello, mere mortal.");
            }
    
            //测试用户是否有具备某一个行为，
            if (currentUser.isPermitted("lightsaber:weild")) {
                log.info("++++You may use a lightsaber ring.  Use it wisely.");
            } else {
                log.info("Sorry, lightsaber rings are for schwartz masters only.");
            }
    
            //测试用户是否具备某个行为（更为具体的行为：如张三具有删除的行为
            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!");
            }
            //退出登录!
            currentUser.logout();
        }
    }

4、测试 ：运行main()方法

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