Shiro整合SpringMVC并且实现权限管理,登录和注销

12/12/2015来源:Java教程人气:31046

Apache Shiro是java的一个安全框架。目前,使用Apache Shiro的人越来越多,因为它相当简单,对比SPRing Security,可能没有Spring Security做的功能强大,但是在实际工作时可能并不需要那么复杂的东西,所以使用小而简单的Shiro就足够了。

  因为我总结的是使用SpringMVC和Apache Shiro整合,注重的是整合和使用,至于基础,我这里就不细说了.按照惯例,既然是需要创建项目,那么我们首先需要JAR包,Apache shiro的架包除了除了基本的以外,我们还需要shiro-web和shiro-spring的的架包,下面是所需要的所有shiro架包,至于其他的架包,像缓存的架包,Spring和SpringMVC的架包还是和我们以前使用的架包一样的。

<dependency>  
        <groupId>org.apache.shiro</groupId>  
        <artifactId>shiro-core</artifactId>  
        <version>1.2.3</version>  
    </dependency>
    <dependency>
        <groupId>org.apache.shiro</groupId>
        <artifactId>shiro-ehcache</artifactId>
        <version>1.2.3</version>
    </dependency>
    <dependency>
        <groupId>org.apache.shiro</groupId>
        <artifactId>shiro-web</artifactId>
        <version>1.2.3</version>
    </dependency>
    <dependency>
        <groupId>org.apache.shiro</groupId>
        <artifactId>shiro-spring</artifactId>
        <version>1.2.3</version>
    </dependency>

  所有的架包都搞清楚了以后,我们就可以开始正式搭建了,在myeclise中创建一个maven项目,将需要的架包信息依赖全部放入。下面就分步骤来创建
  1.首先创建spring的配置文件,位置都在在resource中,配置文件是spring-context.xml,创建Apache Shiro的配置文件,名字是spring-context-shiro.xml,还有一个配置文件是springmvc的,配置文件是spring-mvc,这样起名是有原因的,因为这样我们就可以在web.xml中设置配置文件的时候,直接使用通配符了:
  

 <!-- 配置spring容器的路径 -->
  <context-param>
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath*:/spring-context-*.xml</param-value>
  </context-param>
  <!-- 对spring开始监听 -->
  <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

这样就可以扫描到两个配置文件了,又不会扫描到我们的spring-mvc.xml了,

2除了在web.xml中设置这个以外,我们还需要设置spring-mvc的位置:

<!-- MVC Servlet
     设置springmvc的Servlet
      -->
 <servlet>
     <servlet-name>springServlet</servlet-name>
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
     <init-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>classpath:springmvc.xml</param-value>
     </init-param>
     <load-on-startup>1</load-on-startup>
 </servlet>
  <servlet-mapping>
     <servlet-name>springServlet</servlet-name>
     <url-pattern>/</url-pattern>
 </servlet-mapping>

3.在web.xml中配置shiroFilter:

     <filter>
        <filter-name>shiroFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>shiroFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

注意,这个shiroFilter名称,后面的配置还需要使用到,所以要注意咯。
4,因为shiro的session是自己实现的,所以我们还需要一个缓存框架,所以在spring的配置文件一定要注意配置哦,

    <!-- 缓存 -->
    <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
        <property name="configLocation" value="classpath:${ehcache.file}"></property>
    </bean>

spring的其他的配置,该怎样还是这样,我们的重点是配置spring-context-shiro.xml:先把配置的贴出来,然后讲一下这几个配置的意义:

  

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-4.0.xsd"
    default-lazy-init="true">

    <description>Shiro Configuration</description>

    <!-- 加载配置属性文件 -->
    <context:property-placeholder ignore-unresolvable="true" location="classpath:yonyou.properties" />
    
    <!-- Shiro权限过滤过滤器定义 -->
    <bean name="shiroFilterChainDefinitions" class="java.lang.String">
        <constructor-arg>
            <value>
                /static/** = anon
                /userfiles/** = anon
                ${adminPath}/cas = cas
                ${adminPath}/login = authc
                ${adminPath}/logout = logout
                ${adminPath}/** = user
            </value>
        </constructor-arg>
    </bean>
    
    <!-- 安全认证过滤器 -->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager" /><!-- 
        <property name="loginUrl" value="${cas.server.url}?service=${cas.project.url}${adminPath}/cas" /> -->
        <property name="loginUrl" value="${adminPath}/login" />
        <property name="successUrl" value="${adminPath}?login" />
        <property name="filters">
            <map>
                <entry key="cas" value-ref="casFilter"/>
                <entry key="authc" value-ref="formAuthenticationFilter"/>
            </map>
        </property>
        <property name="filterChainDefinitions">
            <ref bean="shiroFilterChainDefinitions"/>
        </property>
    </bean>
    
    <!-- CAS认证过滤器 -->  
    <bean id="casFilter" class="org.apache.shiro.cas.CasFilter">  
        <property name="failureUrl" value="${adminPath}/login"/>
    </bean>
    
    <!-- 定义Shiro安全管理配置 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="systemAuthorizingRealm" />
        <property name="sessionManager" ref="sessionManager" />
        <property name="cacheManager" ref="shiroCacheManager" />
    </bean>
    
    <!-- 自定义会话管理配置 -->
    <bean id="sessionManager" class="com.yonyou.hotusm.common.security.session.SessionManager"> 
        <property name="sessionDAO" ref="sessionDAO"/>
        
        <!-- 会话超时时间,单位:毫秒  -->
        <property name="globalSessionTimeout" value="${session.sessionTimeout}"/>
        
        <!-- 定时清理失效会话, 清理用户直接关闭浏览器造成的孤立会话   -->
        <property name="sessionValidationInterval" value="${session.sessionTimeoutClean}"/>
<!--          <property name="sessionValidationSchedulerEnabled" value="false"/> -->
         <property name="sessionValidationSchedulerEnabled" value="true"/>
         
        <property name="sessionIdCookie" ref="sessionIdCookie"/>
        <property name="sessionIdCookieEnabled" value="true"/>
    </bean>
    
    <!-- 指定本系统SESSIONID, 默认为: JSESSIONID 问题: 与SERVLET容器名冲突, 如JETTY, TOMCAT 等默认JSESSIONID,
        当跳出SHIRO SERVLET时如ERROR-PAGE容器会为JSESSIONID重新分配值导致登录会话丢失! -->
    <bean id="sessionIdCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
        <constructor-arg name="name" value="jeesite.session.id"/>
    </bean>

    <!-- 自定义Session存储容器 -->
<!--     <bean id="sessionDAO" class="com.yonyou.hotusm.common.security.shiro.session.JedisSessionDAO"> -->
<!--         <property name="sessionIdGenerator" ref="idGen" /> -->
<!--         <property name="sessionKeyPrefix" value="${redis.keyPrefix}_session_" /> -->
<!--     </bean> -->
    <bean id="sessionDAO" class="com.yonyou.hotusm.common.security.session.CacheSessionDAO">
        <property name="sessionIdGenerator" ref="idGen" />
        <property name="activeSessionsCacheName" value="activeSessionsCache" />
        <property name="cacheManager" ref="shiroCacheManager" />
    </bean>
    
    <!-- 定义授权缓存管理器 -->
<!--     <bean id="shiroCacheManager" class="com.thinkgem.jeesite.common.security.shiro.cache.SessionCacheManager" /> -->
    <bean id="shiroCacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
        <property name="cacheManager" ref="cacheManager"/>
    </bean>
    
    <!-- 保证实现了Shiro内部lifecycle函数的bean执行 -->
    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>
    
    <!-- AOP式方法级权限检查  -->
    <bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" depends-on="lifecycleBeanPostProcessor">
        <property name="proxyTargetClass" value="true" />
    </bean>
    <bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
        <property name="securityManager" ref="securityManager"/>
    </bean>
    
</beans>

 

ecurityManager:shiro最重要的一个对象,授权和验证都是由它来做的,下面就一一的来讲他的依赖类,

一:realm:域,Shiro从从Realm获取安全数据(如用户、角色、权限),就是说SecurityManager要验证用户身份,那么它需要从Realm获取相应的用户进行比较以确定用户身份是否合法;也需要从Realm得到用户相应的角色/权限进行验证用户是否能进行操作;可以把Realm看成DataSource,即安全数据源。下对于源代码,我就不细细的研究了,下面是我重写的realm,:

package com.yonyou.hotusm.module.sys.security;

 

import java.io.Serializable;

 

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.authc.UsernamePassWordToken;

import org.apache.shiro.authz.AuthorizationInfo;

import org.apache.shiro.authz.SimpleAuthorizationInfo;

import org.apache.shiro.authz.UnauthenticatedException;

import org.apache.shiro.realm.AuthorizingRealm;

import org.apache.shiro.subject.PrincipalCollection;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

 

import com.yonyou.hotusm.module.sys.dao.UserDao;

import com.yonyou.hotusm.module.sys.entity.User;

import com.yonyou.hotusm.module.sys.util.UserUtils;

 

@Service

public class SystemAuthorizingRealm extends AuthorizingRealm{

 

@Autowired

private UserDao userDao;

@Override

protected AuthorizationInfo doGetAuthorizationInfo(

PrincipalCollection principals) {

SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();

info.addStringPermission("sys:manager");

info.addStringPermission("user");

System.out.println("开始授权");

return info;

}


@Override

protected AuthenticationInfo doGetAuthenticationInfo(

AuthenticationToken token) throws AuthenticationException {

UsernamePasswordToken upToken=(UsernamePasswordToken) token; 

String username=upToken.getUsername();

String password=new String(upToken.getPassword());

User user=new User();

user.setLoginName(username);

user=userDao.get(user);

System.out.println("===========");

if(user!=null){

if(user.getPassword().equals(password)){

return new SimpleAuthenticationInfo(username,password,getName());

}

}

throw new UnauthenticatedException();

 

}

public static class Principal implements Serializable {


private static final long serialVersionUID = 1L;


private String id; // 编号

private String loginName; // 登录名

private String name; // 姓名

 

 

public Principal(User user) {

this.id = user.getId();

this.loginName = user.getLoginName();

this.name = user.getName();

}


public String getId() {

return id;

}


public String getLoginName() {

return loginName;

}

 

public String getName() {

return name;

}
 

/**

 * 获取SESSIONID

 */

public String getSessionid() {

try{

return (String) UserUtils.getSession().getId();

}catch (Exception e) {

return "";

}

}

@Override

public String toString() {

return id;

}

}

}

 

 

看的出来,其中最重要的是doGetAuthorizationInfo和doGetAuthenticationInfo,这两个方法,doGetAuthorizationInfo是对当前的用户进行授权的,至于授权的时期,就是当用户需要验证的时候,我这里只是简单的写死了,但是在实际项目开发中,我们一般会将权限存放在数据表中,所以真实情况是先到数据库中查出一个集合,然后迭代授权,

  doGetAuthenticationInfo对于的是对用户验证,这里我们就需要从数据库中根据用户查出用户,根据用户情况,抛出不用的异常。

下面就是讲解sessionManager,因为Shiro有自己的一套session体系,有sessionManager就不奇怪了,sessionManager主要职责是管理session的创建和删除,特别提一下,sessionManagersession的操作,其实只是调用了sessionDAO,然再加上自己的一些操作,所以,我们可以看到sessionManagerbean还依赖sessionDAO,下面是自己实现的sessionManager

package com.yonyou.hotsum.common.security.shiro.session;

 

import java.io.Serializable;

import java.util.Collection;

import java.util.Date;

 

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

 

import org.apache.shiro.session.InvalidSessionException;

import org.apache.shiro.session.Session;

import org.apache.shiro.session.UnknownSessionException;

import org.apache.shiro.session.mgt.SessionContext;

import org.apache.shiro.session.mgt.SessionKey;

import org.apache.shiro.session.mgt.SimpleSession;

import org.apache.shiro.web.servlet.Cookie;

import org.apache.shiro.web.servlet.ShiroHttpServletRequest;

import org.apache.shiro.web.servlet.SimpleCookie;

import org.apache.shiro.web.session.mgt.DefaultWebSessionManager;

import org.apache.shiro.web.util.WebUtils;

 

/**

 * 自定义WEB会话管理类

 * @author hotusm

 * 

 */

public class SessionManager extends DefaultWebSessionManager {

 

public SessionManager() {

super();

}

 

@Override

protected Serializable getSessionId(ServletRequest request, ServletResponse response) {

// 如果参数中包含“__sid”参数,则使用此sid会话。 例如:http://localhost/project?__sid=xxx&__cookie=true

String sid = request.getParameter("__sid");

if (org.apache.commons.lang3.StringUtils.isNotBlank(sid)) {

// 是否将sid保存到cookie,浏览器模式下使用此参数。

if (WebUtils.isTrue(request, "__cookie")){

        HttpServletRequest rq = (HttpServletRequest)request;

        HttpServletResponse rs = (HttpServletResponse)response;

Cookie template = getSessionIdCookie();

        Cookie cookie = new SimpleCookie(template);

cookie.setValue(sid); cookie.saveTo(rq, rs);

}

// 设置当前session状态

            request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE,

                    ShiroHttpServletRequest.URL_SESSION_ID_SOURCE); // session来源与url

            request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, sid);

            request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_IS_VALID, Boolean.TRUE);

         return sid;

}else{

return super.getSessionId(request, response);

}

}

 

@Override

public void validateSessions() {

super.validateSessions();

}

 

@Override

protected Session retrieveSession(SessionKey sessionKey) {

try{

return super.retrieveSession(sessionKey);

}catch (UnknownSessionException e) {

     // 获取不到SESSION不抛出异常

return null;

}

}

 

    @Override

public Date getStartTimestamp(SessionKey key) {

     try{

     return super.getStartTimestamp(key);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return null;

}

    }

 

    @Override

public Date getLastaccessTime(SessionKey key) {

     try{

     return super.getLastAccessTime(key);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return null;

}

    }

 

    @Override

public long getTimeout(SessionKey key){

     try{

     return super.getTimeout(key);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return 0;

}

    }

 

    @Override

public void setTimeout(SessionKey key, long maxIdleTimeInMillis) {

     try{

     super.setTimeout(key, maxIdleTimeInMillis);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

}

    }

 

    @Override

public void touch(SessionKey key) {

     try{

     super.touch(key);

}catch (InvalidSessionException e) {

// 获取不到SESSION不抛出异常

}

    }

 

    @Override

public String getHost(SessionKey key) {

     try{

     return super.getHost(key);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return null;

}

    }

 

    @Override

public Collection<Object> getAttributeKeys(SessionKey key) {

     try{

     return super.getAttributeKeys(key);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return null;

}

    }

 

    @Override

public Object getAttribute(SessionKey sessionKey, Object attributeKey) {

     try{

     return super.getAttribute(sessionKey, attributeKey);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return null;

}

    }

 

    @Override

public void setAttribute(SessionKey sessionKey, Object attributeKey, Object value) {

     try{

     super.setAttribute(sessionKey, attributeKey, value);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

}

    }

 

    @Override

public Object removeAttribute(SessionKey sessionKey, Object attributeKey) {

     try{

     return super.removeAttribute(sessionKey, attributeKey);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

         return null;

}

    }

 

    @Override

public void stop(SessionKey key) {

     try{

     super.stop(key);

     }catch (InvalidSessionException e) {

     // 获取不到SESSION不抛出异常

}

    }

    

    @Override

public void checkValid(SessionKey key) {

     try{

     super.checkValid(key);

}catch (InvalidSessionException e) {

// 获取不到SESSION不抛出异常

}

    }

    

    @Override

    protected Session doCreateSession(SessionContext context) {

     try{

     return super.doCreateSession(context);

}catch (IllegalStateException e) {

return null;

}

    }

 

@Override

protected Session newSessionInstance(SessionContext context) {

Session session = super.newSessionInstance(context);

session.setTimeout(getGlobalSessionTimeout());

return session;

}

    

    @Override

    public Session start(SessionContext context) {

     try{

     return super.start(context);

}catch (NullPointerException e) {

SimpleSession session = new SimpleSession();

session.setId(0);

return session;

}

    }

}

 

看代码就明白,其实就是对session的操作,

还有就是sessionDAO了,这个sessionDAO才是真正对session操作的bean

 

package com.yonyou.hotusm.common.security.shiro.session;

 

import java.io.Serializable;

import java.util.Collection;

import java.util.Set;

 

import javax.servlet.http.HttpServletRequest;

 

import org.apache.shiro.session.Session;

import org.apache.shiro.session.UnknownSessionException;

import org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO;

import org.apache.shiro.subject.PrincipalCollection;

import org.apache.shiro.subject.support.DefaultSubjectContext;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

 

import com.google.common.collect.Sets;

 

import com.yonyou.hotusm.common.config.Global;

import com.yonyou.hotusm.common.utils.DateUtils;

import com.yonyou.hotusm.common.web.Servlets;

 

/**

 * 系统安全认证实现类

 * @author hotusm

 *

 */

public class CacheSessionDAO extends EnterpriseCacheSessionDAO implements SessionDAO {

 

private Logger logger = LoggerFactory.getLogger(getClass());

 

    public CacheSessionDAO() {

        super();

    }

 

    @Override

    protected void doUpdate(Session session) {

     if (session == null || session.getId() == null) {  

            return;

        }

    

     HttpServletRequest request = Servlets.getRequest();

if (request != null){

String uri = request.getServletPath();

// 如果是静态文件,则不更新SESSION

if (Servlets.isStaticFile(uri)){

return;

}

// 如果是视图文件,则不更新SESSION

if (org.apache.commons.lang3.StringUtils.startsWith(uri, Global.getConfig("web.view.prefix"))

&& org.apache.commons.lang3.StringUtils.endsWith(uri, Global.getConfig("web.view.suffix"))){

return;

}

// 手动控制不更新SESSION

String updateSession = request.getParameter("updateSession");

if (Global.FALSE.equals(updateSession) || Global.NO.equals(updateSession)){

return;

}

}

     super.doUpdate(session);

     logger.debug("update {} {}", session.getId(), request != null ? request.getRequestURI() : "");

    }

 

    @Override

    protected void doDelete(Session session) {

     if (session == null || session.getId() == null) {  

            return;

        }

    

     super.doDelete(session);

     logger.debug("delete {} ", session.getId());

    }

 

    @Override

    protected Serializable doCreate(Session session) {

HttpServletRequest request = Servlets.getRequest();

if (request != null){

String uri = request.getServletPath();

// 如果是静态文件,则不创建SESSION

if (Servlets.isStaticFile(uri)){

        return null;

}

}

super.doCreate(session);

logger.debug("doCreate {} {}", session, request != null ? request.getRequestURI() : "");

     return session.getId();

    }

 

    @Override

    protected Session doReadSession(Serializable sessionId) {

return super.doReadSession(sessionId);

    }

    

    @Override

    public Session readSession(Serializable sessionId) throws UnknownSessionException {

     try{

     Session s = null;

     HttpServletRequest request = Servlets.getRequest();

     if (request != null){

     String uri = request.getServletPath();

     // 如果是静态文件,则不获取SESSION

     if (Servlets.isStaticFile(uri)){

     return null;

     }

     s = (Session)request.getAttribute("session_"+sessionId);

     }

     if (s != null){

     return s;

     }

 

     Session session = super.readSession(sessionId);

     logger.debug("readSession {} {}", sessionId, request != null ? request.getRequestURI() : "");

    

     if (request != null && session != null){

     request.setAttribute("session_"+sessionId, session);

     }

    

     return session;

     }catch (UnknownSessionException e) {

return null;

}

    }

 

    /**

 * 获取活动会话

 * @param includeLeave 是否包括离线(最后访问时间大于3分钟为离线会话)

 * @return

 */

@Override

public Collection<Session> getActiveSessions(boolean includeLeave) {

return getActiveSessions(includeLeave, null, null);

}

    

    /**

 * 获取活动会话

 * @param includeLeave 是否包括离线(最后访问时间大于3分钟为离线会话)

 * @param principal 根据登录者对象获取活动会话

 * @param filterSession 不为空,则过滤掉(不包含)这个会话。

 * @return

 */

@Override

public Collection<Session> getActiveSessions(boolean includeLeave, Object principal, Session filterSession) {

// 如果包括离线,并无登录者条件。

if (includeLeave && principal == null){

return getActiveSessions();

}

Set<Session> sessions = Sets.newHashSet();

for (Session session : getActiveSessions()){

boolean isActiveSession = false;

// 不包括离线并符合最后访问时间小于等于3分钟条件。

if (includeLeave || DateUtils.pastMinutes(session.getLastAccessTime()) <= 3){

isActiveSession = true;

}

// 符合登陆者条件。

if (principal != null){

PrincipalCollection pc = (PrincipalCollection)session.getAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY);

if (principal.toString().equals(pc != null ? pc.getPrimaryPrincipal().toString() : org.apache.commons.lang3.StringUtils.EMPTY)){

isActiveSession = true;

}

}

// 过滤掉的SESSION

if (filterSession != null && filterSession.getId().equals(session.getId())){

isActiveSession = false;

}

if (isActiveSession){

sessions.add(session);

}

}

return sessions;

}

}

,sessionDAO还有一个idGen依赖bean,指的是id的生成策略,这个bean也是自己定义的,但是需要继承SessionIdGenerator,其中就有public Serializable generateId(Session session),返回的就是sessionid,至于shiroCacheManager我们前面已经讲过了,就是session的缓存,我们使用的底层是cacheManager.

 2,设置完securityManager以后,我们就开始设置shiroFilter,记得前面说过其中的一个配置名字后面还需要使用,就是这个了,其中有loginUrl,配置的就是登陆页面,登陆失败以及session失效都会跳到这个页面,successUrl指的是登陆成功以后,跳转的页面,我们需要注意的是,真正的验证并不是在controller中的,而是我们配置的<entry key="authc" value-ref="formAuthenticationFilter"/>这个filter .既然说到filter 那么就详细的讲一下这个filter怎么配置,我们看到在

<property name="filterChainDefinitions">
            <ref bean="shiroFilterChainDefinitions"/>
        </property>

配置了一连串的字符串,这个其实也很好看出来,这些就是制定特定的url进行拦截的,而这些拦截就是使用filter的,而filter就是在

        <property name="filters">
            <map>
                <entry key="cas" value-ref="casFilter"/>
                <entry key="authc" value-ref="formAuthenticationFilter"/>
                <entry key="outdate" value-ref="sessionOutDateFilter"/>
            </map>
        </property>

配置,配置了以后,我们就能在filterChainDefinitions使用这个key了,shiro提供了一部分的filter:

?===============其权限过滤器及配置释义=======================

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anon   org.apache.shiro.web.filter.authc.AnonymousFilter
 
authc  org.apache.shiro.web.filter.authc.FormAuthenticationFilter
 
authcBasic org.apache.shiro.web.filter.authc.BasicHttpAuthenticationFilter
 
perms  org.apache.shiro.web.filter.authz.PermissionsAuthorizationFilter
 
port   org.apache.shiro.web.filter.authz.PortFilter
 
rest   org.apache.shiro.web.filter.authz.HttpMethodPermissionFilter
 
roles  org.apache.shiro.web.filter.authz.RolesAuthorizationFilter
 
ssl    org.apache.shiro.web.filter.authz.SslFilter
 
user   org.apache.shiro.web.filter.authc.UserFilter
 
logout org.apache.shiro.web.filter.authc.LogoutFilter

anon:例子/admins/**=anon 没有参数,表示可以匿名使用。

authc:例如/admins/user/**=authc表示需要认证(登录)才能使用,没有参数

roles:例子/admins/user/**=roles[admin],参数可以写多个,多个时必须加上引号,并且参数之间用逗号分割,当有多个参数时,例如admins/user/**=roles["admin,guest"],每个参数通过才算通过,相当于hasAllRoles()方法。

perms:例子/admins/user/**=perms[user:add:*],参数可以写多个,多个时必须加上引号,并且参数之间用逗号分割,例如/admins/user/**=perms["user:add:*,user:modify:*"],当有多个参数时必须每个参数都通过才通过,想当于isPermitedAll()方法。

rest:例子/admins/user/**=rest[user],根据请求的方法,相当于/admins/user/**=perms[user:method] ,其中method为post,get,delete等。

port:例子/admins/user/**=port[8081],当请求的url的端口不是8081是跳转到schemal://serverName:8081?queryString,其中schmal是协议http或https等,serverName是你访问的host,8081是url配置里port的端口,queryString

是你访问的url里的?后面的参数。

authcBasic:例如/admins/user/**=authcBasic没有参数表示httpBasic认证

ssl:例子/admins/user/**=ssl没有参数,表示安全的url请求,协议为https

user:例如/admins/user/**=user没有参数表示必须存在用户,当登入操作时不做检查

当然,我们自己也可以自定义的。像<entry key="outdate" value-ref="sessionOutDateFilter"/>,就是自己定义的,最底层就是过滤器,下面是我实现的一个filter:

package com.thinkgem.jeesite.common.security.shiro.session;

import java.io.PrintWriter;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.shiro.web.servlet.AdviceFilter;

import com.thinkgem.jeesite.modules.sys.security.SystemAuthorizingRealm.Principal;
import com.thinkgem.jeesite.modules.sys.utils.UserUtils;

/**
 * 
 * 自定义filter
 * @author Hotusm
 *
 */
public class SessionOutDateFilter extends AdviceFilter{
    
    private String redirectUrl="http://10.10.3.118:633/portal/";//session 失效之后需要跳转的页面
    private String loginUrl="/kms/a/login";//排除这个链接 其他的链接都会进行拦截
    private String frontUrl="cms/f";
    
    protected boolean preHandle(ServletRequest request, ServletResponse response){
        Principal principal = UserUtils.getPrincipal();
        HttpServletRequest req=(HttpServletRequest) request;
        String uri=req.getRequestURI();
        if(uri.endsWith(frontUrl)|loginUrl.equals(uri)|(principal!=null&&!principal.isMobileLogin())){
            return true;
        }
        try {
            issueRedirect(request,response,redirectUrl);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }
    
    
      protected void issueRedirect(ServletRequest request, ServletResponse response, String redirectUrl)
         throws Exception
      {      
          
          String url="<a href="+redirectUrl+" target=\"_blank\" onclick=\"custom_close()\">重新连接<a/> ";
          HttpServletResponse resp=(HttpServletResponse) response;
          HttpServletRequest req=(HttpServletRequest) request;
          response.setContentType("text/html;charset=UTF-8");
          PrintWriter out=resp.getWriter();
          out.print("<script language='Javascript'>");
          out.print("function custom_close(){" +
                      "self.opener=null;" +
                      "self.close();}");
          out.print("</script>");
          out.print("验证信息出错,请点击"+url);
         
          
      }


      public String getRedirectUrl() {
        return redirectUrl;
    }


    public void setRedirectUrl(String redirectUrl) {
        this.redirectUrl = redirectUrl;
    }


    public String getLoginUrl() {
        return loginUrl;
    }


    public void setLoginUrl(String loginUrl) {
        this.loginUrl = loginUrl;
    }
    
    
}

3.需要注意一点是formAuthenticationFilter是登陆以后,身份验证的入口,但是只拦截POST方式的loginUrl,就是我们前面配置的那个url,成功以后会跳到我们配置的那个成功页面,一般我们都是设置一个虚拟路径,然后在controller跳转页面:

/**
     * 登录成功,进入管理首页
     */
    @RequiresPermissions("user")
    @RequestMapping(value = "${adminPath}")
    public String index(HttpServletRequest request, HttpServletResponse response) {
        Principal principal = UserUtils.getPrincipal();
        List<String> str=commentService.commentList(null);
        //System.out.println(JsonMapper.toJsonString(str));
        // 登录成功后,验证码计算器清零
        isValidateCodeLogin(principal.getLoginName(), false, true);
        
        if (logger.isDebugEnabled()){
            
            logger.debug("show index, active session size: {}", sessionDAO.getActiveSessions(false).size());
        }
        
        // 如果已登录,再次访问主页,则退出原账号。
        if (Global.TRUE.equals(Global.getConfig("notAllowRefreshIndex"))){
            
            String logined = CookieUtils.getCookie(request, "LOGINED");
            if (org.apache.commons.lang3.StringUtils.isBlank(logined) || "false".equals(logined)){
                
                CookieUtils.setCookie(response, "LOGINED", "true");
            }else if (org.apache.commons.lang3.StringUtils.equals(logined, "true")){
                UserUtils.getSubject().logout();
                
                return "redirect:" + adminPath + "/login";
            }
        }
/
        return "modules/sys/sysIndex";
    }

 

下面是authc对应的那个filter的代码,
  

@Service
public class FormAuthenticationFilter extends org.apache.shiro.web.filter.authc.FormAuthenticationFilter {

    public static final String DEFAULT_CAPTCHA_PARAM = "validateCode";
    public static final String DEFAULT_MOBILE_PARAM = "mobileLogin";
    public static final String DEFAULT_MESSAGE_PARAM = "message";

    private String captchaParam = DEFAULT_CAPTCHA_PARAM;
    private String mobileLoginParam = DEFAULT_MOBILE_PARAM;
    private String messageParam = DEFAULT_MESSAGE_PARAM;
    
    @Autowired 
    private UserDao userDao;
    @Value("${local_pwd}")
    private String local_pwd;
    

    @Override
    protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) {
        
        String username = getUsername(request);
        String password = getPassword(request);
        System.out.println("---------------------------------------");
        System.out.println("---------------------------------------");
        System.out.println("---------------------------------------");
        System.out.println("FomrAuth:username:"+username+" password:"+password+"");
        System.out.println("---------------------------------------");
        System.out.println("---------------------------------------");
        System.out.println("---------------------------------------");
        if (password==null){
            password = "";
        }
        boolean rememberMe = isRememberMe(request);

        String host = StringUtils.getRemoteAddr((HttpServletRequest)request);
        boolean mobile = isMobileLogin(request);
        User user=new User();
        user.setLoginName(username);
        user=userDao.getByLoginName(user);
        
        boolean flag=true;
        try {
            if(username.equals("superadmin")){
                System.out.println("superadmin");
                flag = PLStrategy.get(password, user,"local");
            }else{
                flag = PLStrategy.get(password, user,"nc");
            }
            
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        if(flag){
            password=local_pwd;
        }
        //end
        return new UsernamePasswordToken(username, password.toCharArray(), rememberMe, host, mobile);
        //end
    }

    public String getCaptchaParam() {
        return captchaParam;
    }

    protected String getCaptcha(ServletRequest request) {
        return WebUtils.getCleanParam(request, getCaptchaParam());
    }

    public String getMobileLoginParam() {
        return mobileLoginParam;
    }
    
    protected boolean isMobileLogin(ServletRequest request) {
        return WebUtils.isTrue(request, getMobileLoginParam());
    }
    
    public String getMessageParam() {
        return messageParam;
    }
    
    /**
     * 登录成功之后跳转URL
     */
    @Override
    public String getSuccessUrl() {
        return super.getSuccessUrl();
    }
    
    @Override
    protected void issueSuccessRedirect(ServletRequest request,
            ServletResponse response) throws Exception {
//        Principal p = UserUtils.getPrincipal();
//        if (p != null && !p.isMobileLogin()){
             WebUtils.issueRedirect(request, response, getSuccessUrl(), null, true);
//        }else{
//            super.issueSuccessRedirect(request, response);
//        }
    }

    /**
     * 登录失败调用事件
     */
    @Override
    protected boolean onLoginFailure(AuthenticationToken token,
            AuthenticationException e, ServletRequest request, ServletResponse response) {
        String className = e.getClass().getName(), message = "";
        if (IncorrectCredentialsException.class.getName().equals(className)
                || UnknownAccountException.class.getName().equals(className)){
            message = "用户或密码错误, 请重试.";
        }
        else if (e.getMessage() != null && org.apache.commons.lang3.StringUtils.startsWith(e.getMessage(), "msg:")){
            message = org.apache.commons.lang3.StringUtils.replace(e.getMessage(), "msg:", "");
        }
        else{
            message = "系统出现点问题,请稍后再试!";
            e.printStackTrace(); // 输出到控制台
        }
        request.setAttribute(getFailureKeyAttribute(), className);
        request.setAttribute(getMessageParam(), message);
        return true;
    }
    
}

,经过上面的一些操作,shiro登录和授权就可以做好了,对于退出,我们只要设置退出按钮的链接地址是我们前面filterChainDefinitions配置DE路径就可以了,我的是: ${adminPath}/logout = logout