Shiro简单实现HelloWorld

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1、所需jar包

shiro-all-1.4.1.jar、log4j-1.2.17.jar、slf4j-api-1.7.28.jar、slf4j-log4j12-1.7.28.jar

2、导入以下两个文件（文件位于shiro-root-source-release\shiro-root\samples\quickstart\src\main\resources文件夹下）

3、Quickstart.java代码

package com.hern.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;


/**
 * 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) {
        //创建Shiro SecurityManager的最简单方法
        //领域、用户、角色和权限是使用简单的ini配置。
        //我们将使用一个可以接收.ini文件
        //返回SecurityManager实例：
        //使用类路径根目录下的shiro.ini文件
        //（file:和url:分别从文件和url加载前缀）：
        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);

        //获取当前正在执行的用户：
        //获取当前的Subject，调用SecurityUtils.getSubject();
        Subject currentUser = SecurityUtils.getSubject();

        //在会话中做一些事情（不需要Web或EJB容器！！！！）
        //测试使用Session。首先获取Session,通过Subject的getSession()
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("检索到正确的值！ [" + value + "]");
        }

        //让我们登录当前用户，以便检查角色和权限：
        //测试当前的用户是否已经被认证，即是否已经登录
        //调用Subject的isAuthenticated()
        if (!currentUser.isAuthenticated()) {
            //把用户名和密码封装为UsernamePasswordToken对象
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            //RememberME
            token.setRememberMe(true);
            try {
                //执行登录
                currentUser.login(token);
            } catch (UnknownAccountException uae) {//若没有指定的账户，则Shiro将会抛出UnknownAccountException异常
                log.info("没有用户名为 " + token.getPrincipal() + " 的用户");
                return;
            } catch (IncorrectCredentialsException ice) {//若账户存在，但密码不匹配，则Shiro将会抛出IncorrectCredentialsException异常
                log.info("账户的密码 " + token.getPrincipal() + " 是不正确的！");
                return;
            } catch (LockedAccountException lae) {//用户锁定的异常
                log.info("账户的用户名" + token.getPrincipal() + " 已锁定。  " +
                        "请与管理员联系以解锁！");
            }
            // ... catch more exceptions here (maybe custom ones specific to your application?
            catch (AuthenticationException ae) {//所有认证时异常的父类
                //unexpected condition?  error?
            }
        }

        //say who they are:
        //print their identifying principal (in this case, a username):
        log.info("用户 [" + currentUser.getPrincipal() + "] 登录成功！");

        //测试一个角色，调用Subject的hasRole()
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("你好，你仅仅是普通用户角色");
        }

        //测试是否具有权限（不是实例级别），调用Subject的isPermitted方法
        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.");
        }

        //测试是否具有权限，更加具体，调用Subject的isPermitted方法
        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!
        //执行登出
        currentUser.logout();

        System.exit(0);
    }
}