[shiro学习笔记]使用eclipse/myeclipse搭建你的第一个shiro程序遇到问题解决
本文地址:http://blog.csdn.net/sushengmiyan/article/details/39519509
shiro官网: http://shiro.apache.org/
本文作者:sushengmiyan
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最近想做个简单的extjs5的登录跳转,之前做了一个,但是extjs又没有跳转链接,每次刷新都需要重新登录,实现的不好,现在想实现登录用户的认证,于是看到了shiro这个框架,看起来还是比较好用的,于是开始研究。
刚开始搭建,发现官网给的hello world程序需要maven支持对pom文件研究又不深入,只能抛弃这种方式了。自己安装官方参考手册,下载了quickstart文件源码,但是这是maven文件,不会用,只能手动的新建了一个文件这样的,运行的时候报了好多错误,跑了好久,终于把hello world给运行出来了,现在分享一下可以运行的程序的创建的整个过程:
1.使用eclipse/myeclipse新建shirodemo工程
2.新建lib文件夹,将shiro-all-1.1.0.jar、slf4j-api-1.7.7.jar、slf4j-log4j12-1.7.7.jar、log4j-1.2.16.jar这些jar包添加进来。
3.build path---config build path将这些jar包添加到libraries中
4.新建自己的程序包,例如我新建com.susheng包,将quickstart中Quickstart.java中代码复制一份来。
5.添加shiro.ini和log4j.properties文件到src目录下。
6.运行程序:
程序正常运行。
之前遇到错误列表:
1.没有添加shiro.ini文件
错误信息:Exception in thread "main" org.apache.shiro.config.ConfigurationException: java.io.IOException: Resource [classpath:shiro.ini] could not be found.
原因是没有添加shiro.ini文件,解决方法,将shiro.ini放在src目录下即可解决。
2.没有正确添加self4j-log4j12.jar包
错误信息:SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
self4j的包没有添加完成,这个问题真是弄得我好久都郁闷着。看实例代码,我引入slf4j-api-1.7.7.jar包之后,都可以正常些代码,没有错误提示了,但是居然这个jar包还依赖其他jar包才可以,这相当让我不舒服啊。引入其他self4j的jar包(slf4j-log4j12-1.7.7.jar)即可解决。
3.没有引入log4j的jar包
错误信息: java.lang.NoClassDefFoundError: org/apache/log4j/Level
4.没有log4j的配置文件
错误信息:log4j:WARN No appenders could be found for logger (org.apache.shiro.io.ResourceUtils).
添加log4j.properties到src目录下即可解决问题。
最终的程序目录结构如下:
代码都是shiro例子的,也粘贴一下吧。
package com.susheng; 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: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! currentUser.logout(); System.exit(0); } }
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