Hello Shiro

【HelloWorld Shiro】

1.搭建开发环境-加入jar包

2.步骤（前提:已下载好Shiro资源包）：

①找到shiro-root-1.2.3-source-release包，

②按Apache Shiro\shiro-root-1.2.3-source-release\shiro-root-1.2.3\samples\quickstart\src\main\resources路径找到，将log4j.properties，shiro.ini文件加入到类路径（src）下,

③创建一个包，将Apache Shiro\shiro-root-1.2.3-source-release\shiro-root-1.2.3\samples\quickstart\src\main\java下的Quickstart.java文件放入包中。（注意：在该java代码中要添加包名代码）

3.运行结果：一大堆东西

附：

Quickstart.java：

 package com.hk.shiro.hello;

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */

 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.
  * 这是一个简单地快速开始，来演示怎么用Shiro 的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:
         //获取当前的subject，调用SecurityUtils.getSubject()
         Subject currentUser = SecurityUtils.getSubject();

         // Do some stuff with a Session (no need for a web or EJB container!!!)
         //测试使用session
         //获取Session，调用subject的getSession()方法
         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:
         //测试当前的用户是否已经被认证，即是否登录
         //调用subject的isAuthenticated()
         if (!currentUser.isAuthenticated()) {
             //把用户名和密码封装成UsernamePasswordToken对象
             UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
             //rememberme
             token.setRememberMe(true);
             try {
                 //执行登录
                 currentUser.login(token);
                 //若没有指定账户，Shiro则抛出UnknownAccountException异常
             } catch (UnknownAccountException uae) {
                 log.info("There is no user with username of " + token.getPrincipal());
                 //若账户存在，密码不匹配，则Shiro抛出IncorrectCredentialsException
             } catch (IncorrectCredentialsException ice) {
                 log.info("Password for account " + token.getPrincipal() + " was incorrect!");
                 //用户被锁定的异常
             } 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?
             //所有认证时异常的父类
             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:
         //测试是否有某一个角色，调用subject的hasRole方法
         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)
         //测试用户是否具备某一个行为
         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.");
         }

         //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!
         //执行登出，调用subject的logout()方法
         currentUser.logout();

         System.exit(0);
     }
 }