Shiro 整合SpringMVC 并且实现权限管理,登录和注销

本文内容纲要:Shiro 整合SpringMVC 并且实现权限管理,登录和注销

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。我使用的是maven进行项目的构建,对于非maven的项目只要把这些JAR包下载下来放到相应的位置即可。因为这个项目是整合Spring的,所以除了Apache shiro的JAR之外,我们还需要shiro-web和shiro-spring的的JAR,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的架包等等还是平时那些通用JAR,没有多余的。

<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>

将JAR都准备好了之后,我们就可以开始正式搭建了。下面就分步骤来创建

1.

一:首先创建spring的配置文件,位置都在resource中(非maven的项目可以放到classpath或者是WEB-INF下面,只要保证最后编译之后能在classpath下即可),配置文件为spring-context.xml.

二:创建Apache Shiro的配置文件,名字是spring-context-shiro.xml,我们只需要和spring的配置文件放在同一级就可以了。

三:还有一个配置文件是springmvc的,配置文件是spring-mvc。前面两个文件都是以spring-context*开头是有原因的,因为这样我们就可以在web.xml中设置配置文件的时候,直接使用通配符扫描前两个但是又可以不扫描springmvc的配置文件

这是在web.xml里面配置:

<!-- 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>

除了spring的配置,还有一个配置是非常重要的:shiroFilter。对于初次配置shiro的同学经常遇到一个问题:问题大概讲的是shiroFilter找不到,但是我们明明在web.xml和spring-context-shiro配置文件里面配置了呀,怎么回事?这是因为这个shiroFilter名字两边需要一致!!!(是不是很坑,但是其实是可以配置的,只是一般人不知道,这个后面讲)

<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>

3.

除了在web.xml中设置spring和spring-shiro配置文件位置之外,我们还需要在web.xml中设置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>

4

在spring-context配置文件中,还有一个是需要配置-cacheManager,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,用的是ehcache

<!-- 缓存 -->

<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">

<property name="configLocation" value="classpath:${ehcache.file}"></property>

</bean>

Ehcache的maven地址:

<dependency>

<groupId>net.sf.ehcache</groupId>

<artifactId>ehcache-core</artifactId>

<version>2.6.9</version>

</dependency>

<dependency>

<groupId>org.apache.shiro</groupId>

<artifactId>shiro-ehcache</artifactId>

<version>1.2.3</version>

</dependency>

5

在项目中重点还是配置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}/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="${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>

<!-- 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="hotusm.session.id"/>

</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>

这里从上往下进行解释:

**1.**shiroFilterChainDefinitions

可以看到类型是String,String内部的各个字符串是使用"\n\t"进行换行。这里的每一行代表了一个路由,而后面的anno,user等等,也就是相对应的Filter(这块我们是可以自己定义的,后面会讲,${adminPath} 是我在配置文件里面配置的路径而已,完全可以根据自己的路由进行设置。shiroFilterChainDefinitions最主要是在shiroFilter中作为一个参数注入。

===============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

**2.**重点来了:shiroFilter(ShiroFilterFactoryBean),这里要非常小心!! 这里的bean的名字一定要和web.xml里面的那个Filter名字相同,具体可以见下面的源码:

DelegatingFilterProxy.java:

@Override

protected void initFilterBean() throws ServletException {

synchronized (this.delegateMonitor) {

if (this.delegate == null) {

// If no target bean name specified, use filter name.

if (this.targetBeanName == null) {

this.targetBeanName = getFilterName();

}

// Fetch Spring root application context and initialize the delegate early,

// if possible. If the root application context will be started after this

// filter proxy, we'll have to resort to lazy initialization.

WebApplicationContext wac = findWebApplicationContext();

if (wac != null) {

this.delegate = initDelegate(wac);

}

}

}

}

还记得我们web.xml里面配置的那个Filter吗, 其实我们配置的Filter只不过是起到一个代理的作用,那么它代理谁呢? 它也不能知道,它所能做的就是根据targetBeanName去容器中获取bean(这个bean是实现了Filter接口的),其中的targetBeanName就是bean的名称,如果没有设置的话,那么就默认使用的Filter名称。所以说前面说过的必须相同是不正确的,你只需要在Filter中设置targetBeanName和spring-context-shiro配置文件中ShiroFilterFactoryBean的bean名称一样即可。

除了上面需要注意的几个点之外,ShiroFilterFactoryBean还有一些属性:unauthorizedUrl,系统未认证时跳转的页面,loginUrl登录页面,successUrl登录成功的页面,filter属性就是和前面的shiroFilterChainDefinitions对应的。同时支持自定义,并且配置路由:像这样的。最底层是过滤器,下面是我实现的一个filter:

package com.yonyou.kms.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.yonyou.kms.modules.sys.security.SystemAuthorizingRealm.Principal;

import com.yonyou.kms.modules.sys.utils.UserUtils;

/**

*

* 自定义filter

* @author Hotusm

*

*/

public class SessionOutDateFilter extends AdviceFilter{

private String redirectUrl="http://url/portal";//session 失效之后需要跳转的页面

private String platformUrl="http://url/kms/a/login";

//排除这个链接 其他的链接都会进行拦截

private String loginUrl="/kms/a/login";

private String frontUrl="cms/f";

private String uploadUrl="cms/article/plupload";

private String appUrl="a/app";

protected boolean preHandle(ServletRequest request, ServletResponse response){

Principal principal = UserUtils.getPrincipal();

HttpServletRequest req=(HttpServletRequest) request;

String uri=req.getRequestURI();

if(checkUrl(uri, loginUrl,frontUrl,uploadUrl,appUrl)|(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()\">重新登录<a/> ";

String platform="<a href="+platformUrl+" target=\"_blank\" onclick=\"custom_close()\">直接登录<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("没有权限或者验证信息过期,请点击"+url+"登录portal<br/>");

out.print("直接登录"+platform);

}

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;

}

/**

* 排除一些url不进行拦截

* @param targetUrl

* @param urls

* @return

*/

private boolean checkUrl(String targetUrl,String ...urls){

for(int i=0;i<urls.length;i++){

if(targetUrl.contains(urls[i])){

return true;

}

}

return false;

}

}

这个和springmvc的拦截器是相同的用法,返回true则表示验证通过(后面的逻辑继续执行),返回false就表示验证不通过。

最后在shiroFilter的filters进行配置我们自定义的bean:

<property name="filters">

<map>

<entry key="outdate" value-ref="sessionOutDateFilter"/>

</map>

</property>

这个sessionOutDateFilter我们需要注入(这里省略)。最后我们就将可以将这些东西加到shiroFilterChainDefinitions中去:

<bean name="shiroFilterChainDefinitions" class="java.lang.String">

<constructor-arg>

<value>

......

${adminPath}/** = outdate

.....

</value>

</constructor-arg>

</bean>

这样我们自己定义的叫做outdata的路由会拦截${adminPath}下的所以路径,并且进行验证。

3.

SecurityManager

它和我们前面讲的ShiroFilterFactoryBean的关系形象的将就是ShiroFilterFactoryBean是一个路由规则配置仓库和代理类,其实真正的逻辑都是在SecurityManager中进行的,下面来进行详讲SecurityManager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,下面是我重写的realm:

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

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

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

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

import com.yonyou.hotusm.module.sys.service.UserService;

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

import org.apache.shiro.authc.*;

import org.apache.shiro.authc.credential.HashedCredentialsMatcher;

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.apache.shiro.util.ByteSource;

import org.springframework.beans.factory.InitializingBean;

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

import org.springframework.stereotype.Service;

import java.io.Serializable;

@Service("systemAuthorizingRealm")

public class SystemAuthorizingRealm extends AuthorizingRealm implements InitializingBean{

@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();

User user=new User();

user.setLoginName(username);

user=userDao.get(user);

if(user!=null){

byte[] salt = Encodes.decodeHex(user.getPassword().substring(0,16));

return new SimpleAuthenticationInfo(username,

user.getPassword().substring(16), ByteSource.Util.bytes(salt), getName());

}else{

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;

}

}

//在bean初始化完成以后 设置校验的规则

public void afterPropertiesSet() throws Exception {

HashedCredentialsMatcher matcher = new HashedCredentialsMatcher(UserService.HASH_ALGORITHM);

matcher.setHashIterations(UserService.HASH_INTERATIONS);

setCredentialsMatcher(matcher);

}

}

其他的几个类在这里不是重点,重要的是看这里面的逻辑。其中最重要的是doGetAuthorizationInfo和doGetAuthenticationInfo以及afterPropertiesSet这三个方法,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(框架进行回调),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,主要的一个点在于我们最后返回的那个SimpleAuthenticationInfo,这个是加密的策略,这里的密码是密文的(根据loginName数据中取得),下面是密码的加密策略:

//为明文密码加密

public String encryptionPassword(String plainPassword){

byte[] salt = Digests.generateSalt(SALT_SIZE); //SALT_SIZE=8

byte[] hashPassword = Digests.sha1(plainPassword.getBytes(), salt, HASH_INTERATIONS); //HASH_INTERATIONS=1024

return Encodes.encodeHex(salt)+Encodes.encodeHex(hashPassword); }

我这里是生成了了16位的salt,然后用来加密明文,最后两个加起来存入到数据中。根据上面说的,所以看到我们doGetAuthenticationInfo返回的是分开的两部分。这里也需要注意,这个密码最后的校验我们做的,而是框架!我们只是提供了校验类供它回调(下面我们使用的是默认的校验类,我们也可以自定义):

//在bean初始化完成以后  设置校验的规则

public void afterPropertiesSet() throws Exception {

HashedCredentialsMatcher matcher = new HashedCredentialsMatcher(UserService.HASH_ALGORITHM);

matcher.setHashIterations(UserService.HASH_INTERATIONS);

setCredentialsMatcher(matcher);

,那么在密码进行验证的时候,就会调用HashedCredentialsMatcher的

@Override

public boolean doCredentialsMatch(AuthenticationToken token, AuthenticationInfo info) {

Object tokenHashedCredentials = hashProvidedCredentials(token, info);

Object accountCredentials = getCredentials(info);

return equals(tokenHashedCredentials, accountCredentials);

}

方法,这个Info就是我们前面方法doGetAuthenticationInfo提供的,至于另外的一个Token,后面会讲(也是一个方法提供的)。

4

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,sessionManager对session的操作,其实只是调用了sessionDAO,然再加上自己的一些操作。

看源码:

public class DefaultSessionManager extends AbstractValidatingSessionManager implements CacheManagerAware {

//TODO - complete JavaDoc

private static final Logger log = LoggerFactory.getLogger(DefaultSessionManager.class);

private SessionFactory sessionFactory;

protected SessionDAO sessionDAO; //todo - move SessionDAO up to AbstractValidatingSessionManager?

private CacheManager cacheManager;

private boolean deleteInvalidSessions;

public DefaultSessionManager() {

this.deleteInvalidSessions = true;

this.sessionFactory = new SimpleSessionFactory();

this.sessionDAO = new MemorySessionDAO();

}

.......

protected void create(Session session) {

if (log.isDebugEnabled()) {

log.debug("Creating new EIS record for new session instance [" + session + "]");

}

sessionDAO.create(session);

}

 

这上面的源码中就知道SessionManager就是对SessionDAO进行了代理的作用。

我们就明白了sessionManager依赖sessionDAO(后面实现自己的SessionDAO需要注入到SessionManager中),下面是自己实现的sessionManager:

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

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;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.Serializable;

import java.util.Collection;

import java.util.Date;

/***

*

* @author Hotusm

* v2015-11-04

*/

public class SessionManager extends DefaultWebSessionManager{

/*

*DefaultWebSessionManager 实现了DefaultSessionManager的功能 并在其上实现了web的功能

* 也就是在上面实现了将SessionId 存到了Cookie中

* */

@Override

protected Serializable getSessionId(ServletRequest request,

ServletResponse response) {

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

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

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

HttpServletRequest req=(HttpServletRequest) request;

HttpServletResponse resp=(HttpServletResponse) response;

Cookie template=getSessionIdCookie();

Cookie cookie=new SimpleCookie(template);

cookie.setValue(sid);

cookie.saveTo(req, resp);

}

request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE,ShiroHttpServletRequest.URL_SESSION_ID_SOURCE);

request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, sid);

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

return sid;

}

return super.getSessionId(request, response);

}

@Override

protected Session doCreateSession(SessionContext context) {

try {

return super.doCreateSession(context);

} catch (Exception e) {

return null;

}

}

@Override

protected Session newSessionInstance(SessionContext context) {

Session session=super.newSessionInstance(context);

session.setTimeout(getGlobalSessionTimeout());

return session;

}

@Override

protected Session retrieveSession(SessionKey sessionKey)

throws UnknownSessionException {

try {

return super.retrieveSession(sessionKey);

} catch (Exception e) {

//获取不到SESSION不报错

return null;

}

}

@Override

public void validateSessions() {

super.validateSessions();

}

@Override

public Session start(SessionContext context) {

try {

return super.start(context);

} catch (Exception e) {

SimpleSession session=new SimpleSession();

session.setId(0);

return session;

}

}

@Override

public Date getStartTimestamp(SessionKey key) {

try {

return super.getStartTimestamp(key);

} catch (Exception e) {

return null;

}

}

@Override

public Date getLastAccessTime(SessionKey key) {

try {

return super.getLastAccessTime(key);

} catch (Exception e) {

return null;

}

}

@Override

public long getTimeout(SessionKey key) throws InvalidSessionException {

try {

return super.getTimeout(key);

} catch (Exception e) {

return 0;

}

}

@Override

public void setTimeout(SessionKey key, long maxIdleTimeInMillis)

throws InvalidSessionException {

try {

super.setTimeout(key, maxIdleTimeInMillis);

} catch (Exception e) {

}

}

@Override

public void touch(SessionKey key) throws InvalidSessionException {

try {

super.touch(key);

} catch (Exception e) {

}

}

@Override

public String getHost(SessionKey key) {

try {

return super.getHost(key);

} catch (Exception e) {

return null;

}

}

@Override

public Collection<Object> getAttributeKeys(SessionKey key) {

try {

return super.getAttributeKeys(key);

} catch (Exception e) {

return null;

}

}

@Override

public Object getAttribute(SessionKey sessionKey, Object attributeKey)

throws InvalidSessionException {

try {

return super.getAttribute(sessionKey, attributeKey);

} catch (Exception e) {

return null;

}

}

@Override

public Object removeAttribute(SessionKey sessionKey, Object attributeKey)

throws InvalidSessionException {

try {

return super.removeAttribute(sessionKey, attributeKey);

} catch (Exception e) {

return null;

}

//

}

@Override

public void stop(SessionKey key) throws InvalidSessionException {

try {

super.stop(key);

} catch (Exception e) {

}

}

@Override

public void checkValid(SessionKey key) throws InvalidSessionException {

try {

super.checkValid(key);

} catch (Exception e) {

}

}

}

上面就是对session的操作.

5

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.session;

import com.google.common.collect.Sets;

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

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

import org.apache.shiro.session.Session;

import org.apache.shiro.session.UnknownSessionException;

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

import javax.servlet.http.HttpServletRequest;

import java.io.Serializable;

import java.util.Collection;

import java.util.Set;

/**

* @author Hotusm

* v-2015-10-28

*/

public class CacheSessionDAO extends EnterpriseCacheSessionDAO implements SessionDAO {

@Override

protected Serializable doCreate(Session session) {

HttpServletRequest request = Servlets.getRequest();

if (request != null) {

String uri = request.getRequestURI();

if (Servlets.isStaticFile(uri)) {

return null;

}

}

super.doCreate(session);

//System.out.println("doCreate:"+" sessionId"+session.getId());

return session.getId();

}

@Override

public Session readSession(Serializable sessionId) throws UnknownSessionException {

//System.out.println("readSession:"+" sessionId"+sessionId);

//System.out.println();

try {

Session s = null;

HttpServletRequest request = Servlets.getRequest();

if (request != null) {

String uri = request.getRequestURI();

if (Servlets.isStaticFile(uri)) {

return null;

}

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

}

if (s != null) {

return s;

}

Session session = super.readSession(sessionId);

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

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

}

return session;

} catch (Exception e) {

return null;

}

}

@Override

protected Session doReadSession(Serializable sessionId) {

//System.out.println("doReadSession:"+" sessionId"+sessionId);

return super.doReadSession(sessionId);

}

@Override

protected void doUpdate(Session session) {

// System.out.println("doUpdate"+" sessionId"+session.getId());

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

return;

}

HttpServletRequest request = Servlets.getRequest();

if (request != null) {

String uri = request.getRequestURI();

if (Servlets.isStaticFile(uri)) {

return;

}

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

&& org.apache.commons.lang.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);

}

@Override

protected void doDelete(Session session) {

//System.out.println("doDelete");

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

return;

}

super.doUpdate(session);

}

public Collection<Session> getActiveSessions(boolean includeLeave) {

return null;

}

public Collection<Session> getActiveSessions(boolean includeLeave,

Object principal, Session filterSession) {

if (includeLeave && principal == null) {

return this.getActiveSessions();

}

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

for (Session session : getActiveSessions()) {

boolean isActiveSession = true;

}

return null;

}

}

6.

看sessionDAO还有一个idGen依赖bean,指的是sessionId值的生成策略,这个bean也是自己定义的,但是需要继承SessionIdGenerator:

public class IdGen implements SessionIdGenerator{

private static SecureRandom secureRandom;

/**

* 封装JDK自带的UUID,通过random生成

*/

public static String uuid(){

return UUID.randomUUID().toString().replace("-", "");

}

public static long randomLong(){

return Math.abs(secureRandom.nextLong());

}

public Serializable generateId(Session session) {

return IdGen.uuid();

}

}

返回的就是session的值,至于shiroCacheManager就是session缓存的储存位置(它依赖的是我们在spring-context定义的cacheManager)。

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;

@Override

protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) {

String username = getUsername(request);

String password = getPassword(request);boolean rememberMe = isRememberMe(request);

String host = StringUtils.getRemoteAddr((HttpServletRequest)request);

boolean mobile = isMobileLogin(request);

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;

}

}

这里的Token就是我们前面所讲的Info一起来做明文和密文进行校验的。

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配置的路径就可以了,我的是: ${adminPath}/logout = logout;

具体的代码在我github:https://github.com/Housum/blog.git 有

本文内容总结:Shiro 整合SpringMVC 并且实现权限管理,登录和注销

原文链接:https://www.cnblogs.com/zr520/p/5009790.html

以上是 Shiro 整合SpringMVC 并且实现权限管理,登录和注销 的全部内容, 来源链接: utcz.com/z/295991.html

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