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Apache Shiro简单示例

2015-07-12 16:50 821 查看
1、新建一个Maven的war工程，并在pom.xml中增加如下依赖。

<dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-web</artifactId>
 <version>4.0.9.RELEASE</version>
</dependency>
<dependency>
 <groupId>org.apache.shiro</groupId>
 <artifactId>shiro-spring</artifactId>
 <version>1.2.3</version>
</dependency>
<dependency>
 <groupId>javax.servlet</groupId>
 <artifactId>javax.servlet-api</artifactId>
 <version>3.1.0</version>
</dependency>
<dependency>
 <groupId>org.apache.shiro</groupId>
 <artifactId>shiro-quartz</artifactId>
 <version>1.2.3</version>
</dependency>
<dependency>
 <groupId>commons-collections</groupId>
 <artifactId>commons-collections</artifactId>
 <version>3.2.1</version>
</dependency>
<dependency>
 <groupId>javax.servlet.jsp</groupId>
 <artifactId>jsp-api</artifactId>
 <version>2.2</version>
</dependency>

2、在web.xml中增加如下内容。

<context-param>
 <param-name>contextConfigLocation</param-name>
 <param-value>classpath:spring-core.xml</param-value>
</context-param>
<listener>
 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
 <filter-name>shiroFilter</filter-name>
 <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
 <async-supported>true</async-supported>
 <init-param>
  <param-name>targetFilterLifecycle</param-name>
  <param-value>true</param-value>
 </init-param>
</filter>
<filter-mapping>
 <filter-name>shiroFilter</filter-name>
 <url-pattern>/*</url-pattern>
</filter-mapping>

3、新增两个页面，分别为login.jsp和index.jsp，主要用于展示登录界面和主界面。

login.jsp

<%@page language="java" pageEncoding="UTF-8"%>
<html>
<head>
<title>shiro-spring登录页面</title>
<style>.error{color:red;}</style>
</head>
<body>
 <div class="error">${error}</div>
 <form action="" method="post">
  用户名：<input name="username" type="text"> 密码：<input
   name="password" type="password">
  <button type="submit">登录</button>
 </form>
</body>
</html>

index.jsp

<%@page language="java" pageEncoding="UTF-8"%>
<%@taglib prefix="shiro" uri="http://shiro.apache.org/tags"%>
<html>
<head>
<title>shiro-spring欢迎页面</title>
</head>
<body>
 <shiro:guest>
  欢迎游客访问，<a href="${pageContext.request.contextPath}/login.jsp">点击登录</a><br/>
 </shiro:guest>
 <shiro:user>
  欢迎[<shiro:principal/>]登录，<a href="${pageContext.request.contextPath}/logout">点击退出</a><br/>
 </shiro:user>
</body>
</html>

4、新增一个UserRealm类，用于实现用户登录操作的相关校验。这里为了简化，写死了用户名、密码和盐值。用户名：admin，密码：123456

package org.cloud.shiro.realm;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
public class UserRealm extends AuthorizingRealm{
 protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
  return null;
 }
 protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
  String username=(String) token.getPrincipal();
  SimpleAuthenticationInfo authenticationInfo=new SimpleAuthenticationInfo(username,"123456",ByteSource.Util.bytes(username+"8d78869f470951332959580424d4bf4f"),getName());
  return authenticationInfo;
 }
}

5、新增spring-core.xml文件，主要用于shiro的配置。注意其中需要配置上面所编写的UserRealm类。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">  <!-- Realm实现 -->
 <bean id="userRealm" class="org.cloud.shiro.realm.UserRealm" />
 <!-- 会话ID生成器 -->
 <bean id="sessionIdGenerator"
  class="org.apache.shiro.session.mgt.eis.JavaUuidSessionIdGenerator" />
 <!-- 会话Cookie模板 -->
 <bean id="sessionIdCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
  <constructor-arg value="sid" />
  <property name="httpOnly" value="true" />
  <property name="maxAge" value="180000" />
 </bean>
 <!-- 会话DAO -->
 <bean id="sessionDAO"
  class="org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO">
  <property name="activeSessionsCacheName" value="shiro-activeSessionCache" />
  <property name="sessionIdGenerator" ref="sessionIdGenerator" />
 </bean>
 <!-- 会话验证调度器 -->
 <bean id="sessionValidationScheduler"
  class="org.apache.shiro.session.mgt.quartz.QuartzSessionValidationScheduler">
  <property name="sessionValidationInterval" value="1800000" />
  <property name="sessionManager" ref="sessionManager" />
 </bean>
 <!-- 会话管理器 -->
 <bean id="sessionManager"
  class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">
  <property name="globalSessionTimeout" value="1800000" />
  <property name="deleteInvalidSessions" value="true" />
  <property name="sessionValidationSchedulerEnabled" value="true" />
  <property name="sessionValidationScheduler" ref="sessionValidationScheduler" />
  <property name="sessionDAO" ref="sessionDAO" />
  <property name="sessionIdCookieEnabled" value="true" />
  <property name="sessionIdCookie" ref="sessionIdCookie" />
 </bean>
 <!-- 安全管理器 -->
 <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
  <property name="realm" ref="userRealm" />
  <property name="sessionManager" ref="sessionManager" />
 </bean>

 <bean id="formAuthenticationFilter"
  class="org.apache.shiro.web.filter.authc.FormAuthenticationFilter">
  <property name="usernameParam" value="username" />
  <property name="passwordParam" value="password" />
 </bean>
 <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
  <property name="securityManager" ref="securityManager" />
  <property name="loginUrl" value="/login.jsp" />
  <property name="successUrl" value="/index.jsp" />
  <property name="filters">
   <map>
    <entry key="authc" value-ref="formAuthenticationFilter"></entry>
   </map>
  </property>
  <property name="filterChainDefinitions">
   <value>
    /login.jsp = authc
    /logout = logout
    /** = user
   </value>
  </property>
 </bean>
 <!-- Shiro生命周期处理器 -->
 <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor" />
</beans>

6、启动项目后，访问login.jsp后，会显示登录界面，输入用户名和密码后，可以进入到index.jsp页面。当然点击退出按钮后，返回至登录页面中。如果未登录系统，在地址栏中直接访问index.jsp是会被返回至登录页面中的。

到此，一个简单的shiro示例就搭建完成，大家可以根据项目的实际需要扩展内容。本文主要简单列举了一下shiro的示例，主要为shiro的首次学习者做一个开场示例，若要深入掌握shiro，还需自己多学习，多实践。
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