shiro 快速入门详解。
package com.aaa.lee.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) { // 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): /** * 1.使用最简单的方式创建Shiro安全框架,需要通过配置INI配置文件进行配置realm,users,roles,permissions * 使用Factory<SecurityManager>工厂类加载根目录下的shiro.ini文件来构建SecurityManager对象 * SecurityManager:认证,授权,加密,session管理 * 以下的所有操作都必须使用SecurityManager对象进行完整,也就是说都需要使用SecurityManager对象爱获取 * */ 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. /** * * 2.已经把SecurityManager对象创建出来,这个对象在JVM中是一个单例 * 如果在真实的web环境中,需要在容器中配置web.xml/application.xml * * */ SecurityUtils.setSecurityManager(securityManager); /** * shiro所需要的环境已经搭建完毕 */ // Now that a simple Shiro environment is set up, let's see what you can do: /** * * 3.通过securityManager获取到Subject对象 * Subject中封装了表单所提交的属性(User信息:按照官方要求不能存入密码) * * */ // get the currently executing user: Subject currentUser = SecurityUtils.getSubject(); /** * * 4.测试session * 通过Subject对象获取session对象然后进行测试 * */ // 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: /** * * 5.认证阶段 * currentUser.isAuthenticated():返回true/false 查看当前对象是否已经处于认证创建 * 如果是返回true,否则返回false * * */ System.out.println("认证前-------->"+currentUser.isAuthenticated()); if (!currentUser.isAuthenticated()) { /** * 用户未处于登录状态 * 6.创建出UsernamePasswordToken对象,该对象拥有两个参数username,password */ UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa"); // token.setRememberMe(true); try { /** * 7.真正的认证方法 * 调用了login方法 */ currentUser.login(token); } catch (UnknownAccountException uae) { System.out.println("UnknownAccountException---->表示用户不存在"); log.info("There is no user with username of " + token.getPrincipal()); return; } catch (IncorrectCredentialsException ice) { System.out.println("IncorrectCredentialsException------>表示密码错误"); log.info("Password for account " + token.getPrincipal() + " was incorrect!"); return; } catch (LockedAccountException lae) { System.out.println("LockedAccountException------>表示所登录的账号被锁定"); 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) { /** * AuthenticationException是以上三个异常父类 */ //unexpected condition? error? } } //say who they are: //print their identifying principal (in this case, a username): System.out.println("用户登录成功"); System.out.println("认证成功-------->"+currentUser.isAuthenticated()); /** * currentUser.getPrincipal():获取的是用户名 */ log.info("User [" + currentUser.getPrincipal() + "] logged in successfully."); //test a role: /** * 8.测试角色 * currentUser.hasRole("schwartz"):返回值为true/false * 如果当前登录用户拥有该角色则返回true,否则返回false */ if (currentUser.hasRole("book_manager")) { System.out.println("拥有schwartz角色"); log.info("May the Schwartz be with you!"); //return; } else { System.out.println("没有schwartz角色"); log.info("Hello, mere mortal."); } /** * 9.测试权限 * currentUser.isPermitted("lightsaber:wield"):返回true/false * 如果拥有权限返回true,否则返回false */ //test a typed permission (not instance-level) if (currentUser.isPermitted("book:delete")) { System.out.println("可以对图书进行删除操作"); log.info("You may use a lightsaber ring. Use it wisely."); //return; } else { System.out.println("没有对图书操作权限"); log.info("Sorry, lightsaber rings are for schwartz masters only."); } //a (very powerful) Instance Level permission: if (currentUser.isPermitted("bookUser:query:book")) { System.out.println("拥有操作!!!!"); log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'. " + "Here are the keys - have fun!"); // return; } else { log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!"); } /** * 10.Subjct主体对象调用logout()方法执行退出操作 */ //all done - log out! currentUser.logout(); System.out.println("退出后-------->"+currentUser.isAuthenticated()); System.exit(0); } }