SpringMVC+Shiro整合配置文件详解

  1 <?xml version="1.0" encoding="UTF-8"?>  
  2 <web-app version="2.5"  
  3     xmlns="http://java.sun.com/xml/ns/javaee"  
  4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
  5     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee  
  6     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  
  7     <!-- Web容器加载顺序ServletContext--context-param--listener--filter--servlet -->  
  8   
  9     <!-- 指定Spring的配置文件 -->  
 10     <!-- 否则Spring会默认从WEB-INF下寻找配置文件,contextConfigLocation属性是Spring内部固定的 -->
 11     <context-param>  
 12         <param-name>contextConfigLocation</param-name>  
 13         <param-value>classpath*:/spring-context*.xml</param-value>  
 14     </context-param>  
 15   
 16     <!-- 防止发生java.beans.Introspector内存泄露,应将它配置在ContextLoaderListener的前面 -->
 17     <listener>  
 18         <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
 19     </listener>  
 20       
 21     <!-- 实例化Spring容器 -->  
 22     <!-- 应用启动时,该监听器被执行,它会读取Spring相关配置文件,其默认会到WEB-INF中查找applicationContext.xml -->  
 23     <listener>  
 24         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
 25     </listener>  
 26   
 27     <!-- 解决乱码问题 -->  
 28     <!-- forceEncoding默认为false,此时效果可大致理解为request.setCharacterEncoding("UTF-8") -->  
 29     <!-- forceEncoding=true后,可大致理解为request.setCharacterEncoding("UTF-8")和response.setCharacterEncoding("UTF-8") -->  
 30     <filter>  
 31         <filter-name>SpringEncodingFilter</filter-name>  
 32         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
 33         <init-param>  
 34             <param-name>encoding</param-name>  
 35             <param-value>UTF-8</param-value>  
 36         </init-param>  
 37         <init-param>  
 38             <param-name>forceEncoding</param-name>  
 39             <param-value>true</param-value>  
 40         </init-param>  
 41     </filter>  
 42     <filter-mapping>  
 43         <filter-name>SpringEncodingFilter</filter-name>  
 44         <url-pattern>/*</url-pattern>  
 45     </filter-mapping>  
 46       
 47     <!-- 配置Shiro过滤器,先让Shiro过滤系统接收到的请求 -->  
 48     <!-- 这里filter-name必须对应applicationContext.xml中定义的<bean id="shiroFilter"/> -->  
 49     <!-- 使用[/*]匹配所有请求,保证所有的可控请求都经过Shiro的过滤 -->  
 50     <!-- 通常会将此filter-mapping放置到最前面(即其他filter-mapping前面),以保证它是过滤器链中第一个起作用的 -->  
 51     <filter>  
 52         <filter-name>shiroFilter</filter-name>  
 53         <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>  
 54         <init-param>  
 55             <!-- 该值缺省为false,表示生命周期由SpringApplicationContext管理,设置为true则表示由ServletContainer管理 -->  
 56             <param-name>targetFilterLifecycle</param-name>  
 57             <param-value>true</param-value>  
 58         </init-param>  
 59     </filter>  
 60     <filter-mapping>  
 61         <filter-name>shiroFilter</filter-name>  
 62         <url-pattern>/*</url-pattern>  
 63     </filter-mapping>  
 64   
 65     <!-- SpringMVC核心分发器 -->  
 66     <servlet>  
 67         <servlet-name>SpringMVC</servlet-name>  
 68         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
 69         <init-param>  
 70             <param-name>contextConfigLocation</param-name>  
 71             <param-value>classpath*:/spring-mvc*.xml</param-value>  
 72         </init-param>  
 73     </servlet>  
 74     <servlet-mapping>  
 75         <servlet-name>SpringMVC</servlet-name>  
 76         <url-pattern>/</url-pattern>  
 77     </servlet-mapping>  
 78   
 79     <!-- Session超时30分钟(零或负数表示会话永不超时)-->  
 80     <!--   
 81     <session-config>  
 82         <session-timeout>30</session-timeout>  
 83     </session-config>  
 84      -->  
 85   
 86     <!-- 默认欢迎页 -->
 87     <!-- Servlet2.5中可直接在此处执行Servlet应用,如<welcome-file>servlet/InitSystemParamServlet</welcome-file> -->  
 88     <!-- 这里使用了SpringMVC提供的<mvc:view-controller>标签,实现了首页隐藏的目的,详见applicationContext.xml -->  
 89     <!--   
 90     <welcome-file-list>  
 91         <welcome-file>login.jsp</welcome-file>  
 92     </welcome-file-list>  
 93      -->  
 94       
 95     <error-page>  
 96         <error-code>405</error-code>  
 97         <location>/WEB-INF/405.html</location>  
 98     </error-page>  
 99     <error-page>  
100         <error-code>404</error-code>  
101         <location>/WEB-INF/404.jsp</location>  
102     </error-page>  
103     <error-page>  
104         <error-code>500</error-code>  
105         <location>/WEB-INF/500.jsp</location>  
106     </error-page>  
107     <error-page>  
108         <exception-type>java.lang.Throwable</exception-type>  
109         <location>/WEB-INF/500.jsp</location>  
110     </error-page>  
111 </web-app>

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns="http://www.springframework.org/schema/beans"  
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
 4     xmlns:mvc="http://www.springframework.org/schema/mvc"  
 5     xmlns:context="http://www.springframework.org/schema/context"  
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans  
 7                         http://www.springframework.org/schema/beans/spring-beans-3.2.xsd  
 8                         http://www.springframework.org/schema/mvc  
 9                         http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd  
10                         http://www.springframework.org/schema/context  
11                         http://www.springframework.org/schema/context/spring-context-3.2.xsd">  
12     <!-- 它背后注册了很多用于解析注解的处理器,其中就包括<context:annotation-config/>配置的注解所使用的处理器 -->  
13     <!-- 所以配置了<context:component-scan base-package="">之后,便无需再配置<context:annotation-config> -->  
14     <context:component-scan base-package="com.papio"/>  
15       
16     <!-- 启用SpringMVC的注解功能,它会自动注册HandlerMapping、HandlerAdapter、ExceptionResolver的相关实例 -->  
17     <mvc:annotation-driven/>  
18   
19     <!-- 配置SpringMVC的视图解析器 -->  
20     <!-- 其viewClass属性的默认值就是org.springframework.web.servlet.view.JstlView -->  
21     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
22         <property name="prefix" value="/"/>  
23         <property name="suffix" value=".jsp"/>  
24     </bean>  
25   
26     <!-- 默认访问跳转到登录页面(即定义无需Controller的url<->view直接映射) -->  
27     <mvc:view-controller path="/" view-name="forward:/login.jsp"/>  
28   
29     <!-- 由于web.xml中设置是：由SpringMVC拦截所有请求,于是在读取静态资源文件的时候就会受到影响(说白了就是读不到) -->  
30     <!-- 经过下面的配置，该标签的作用就是：所有页面中引用"/js/**"的资源，都会从"/resources/js/"里面进行查找 -->  
31     <!-- 我们可以访问http://IP:8080/xxx/js/my.css和http://IP:8080/xxx/resources/js/my.css对比出来 -->  
32     <mvc:resources mapping="/js/**" location="/resources/js/"/>  
33     <mvc:resources mapping="/css/**" location="/resources/css/"/>  
34     <mvc:resources mapping="/WEB-INF/**" location="/WEB-INF/"/>  
35   
36     <!-- SpringMVC在超出上传文件限制时，会抛出org.springframework.web.multipart.MaxUploadSizeExceededException -->  
37     <!-- 该异常是SpringMVC在检查上传的文件信息时抛出来的，而且此时还没有进入到Controller方法中 -->  
38     <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">  
39         <property name="exceptionMappings">  
40             <props>  
41                 <!-- 遇到MaxUploadSizeExceededException异常时，自动跳转到/WEB-INF/error_fileupload.jsp页面 -->  
42                 <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">WEB-INF/error_fileupload</prop>  
43                 <!-- 处理其它异常(包括Controller抛出的) -->  
44                 <prop key="java.lang.Throwable">WEB-INF/500</prop>  
45             </props>  
46         </property>  
47     </bean>  
48 </beans>
49  

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3     xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="
 4         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
 5         http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-4.0.xsd"
 6     default-lazy-init="true">
 7     <!-- 继承自AuthorizingRealm的自定义Realm,即指定Shiro验证用户登录的类为自定义的ShiroDbRealm.java -->  
 8     <bean id="myRealm" class="com.papio.realm.MyRealm"/>  
 9   
10     <!-- 定义缓存管理器 --> 
11    <bean id="cacheManager" class="org.apache.shiro.cache.MemoryConstrainedCacheManager" /> 
12  
13    <bean id="sessionManager" class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">
14        <!-- session的失效时长，单位毫秒 -->
15      <property name="globalSessionTimeout" value="600000"/>
16       <!-- 删除失效的session -->
17      <property name="deleteInvalidSessions" value="true"/>
18    </bean>
19  
20     <!-- Shiro默认会使用Servlet容器的Session,可通过sessionMode属性来指定使用Shiro原生Session -->  
21     <!-- 即<property name="sessionMode" value="native"/>,详细说明见官方文档 -->  
22     <!-- 这里主要是设置自定义的单Realm应用,若有多个Realm,可使用‘realms‘属性代替 -->  
23     <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">  
24         <property name="realm" ref="myRealm"/>
25         <!-- 使用配置的缓存管理器 --> 
26      <property name="cacheManager" ref="cacheManager"></property> 
27      <!-- 会话管理 -->
28      <property name="sessionManager" ref="sessionManager" />
29   </bean>  
30   
31     <!-- Shiro主过滤器本身功能十分强大,其强大之处就在于它支持任何基于URL路径表达式的、自定义的过滤器的执行 -->  
32     <!-- Web应用中,Shiro可控制的Web请求必须经过Shiro主过滤器的拦截,Shiro对基于Spring的Web应用提供了完美的支持 -->  
33     <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">  
34         <!-- Shiro的核心安全接口,这个属性是必须的 -->  
35         <property name="securityManager" ref="securityManager"/>  
36         <!-- 要求登录时的链接(可根据项目的URL进行替换),非必须的属性,默认会自动寻找Web工程根目录下的"/login.jsp"页面 -->  
37         <property name="loginUrl" value="/"/>  
38         <!-- 登录成功后要跳转的连接(本例中此属性用不到,因为登录成功后的处理逻辑在LoginController里硬编码为main.jsp了) -->  
39         <!-- <property name="successUrl" value="/system/main"/> -->  
40         <!-- 用户访问未对其授权的资源时,所显示的连接 -->  
41         <!-- 若想更明显的测试此属性可以修改它的值,如unauthor.jsp,然后用[玄玉]登录后访问/admin/listUser.jsp就看见浏览器会显示unauthor.jsp -->  
42         <property name="unauthorizedUrl" value="/"/>  
43         <!-- Shiro连接约束配置,即过滤链的定义 -->  
44         <!-- 此处可配合这篇文章来理解各个过滤连的作用http://blog.csdn.net/jadyer/article/details/12172839 -->  
45         <!-- 下面value值的第一个‘/‘代表的路径是相对于HttpServletRequest.getContextPath()的值来的 -->  
46         <!-- anon：它对应的过滤器里面是空的,什么都没做,这里.do和.jsp后面的*表示参数,比方说login.jsp?main这种 -->  
47         <!-- authc：该过滤器下的页面必须验证后才能访问,它是Shiro内置的一个拦截器org.apache.shiro.web.filter.authc.FormAuthenticationFilter -->  
48         <property name="filterChainDefinitions">  
49             <value>  
50                 /mydemo/login=anon  
51                 /mydemo/getVerifyCodeImage=anon  
52                 /main**=authc  
53                 /user/info**=authc  
54                 /admin/listUser**=authc,perms[admin:manage]  
55             </value>  
56         </property>  
57     </bean>  
58   
59     <!-- 保证实现了Shiro内部lifecycle函数的bean执行 -->  
60     <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>  
61   
62     <!-- 开启Shiro的注解(如@RequiresRoles,@RequiresPermissions),需借助SpringAOP扫描使用Shiro注解的类,并在必要时进行安全逻辑验证 -->  
63     <!-- 配置以下两个bean即可实现此功能 -->  
64     <!-- Enable Shiro Annotations for Spring-configured beans. Only run after the lifecycleBeanProcessor has run -->  
65     <!-- 由于本例中并未使用Shiro注解,故注释掉这两个bean(个人觉得将权限通过注解的方式硬编码在程序中,查看起来不是很方便,没必要使用) -->  
66     <!--   
67     <bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" depends-on="lifecycleBeanPostProcessor"/>  
68     <bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">  
69         <property name="securityManager" ref="securityManager"/>  
70     </bean>  
71      -->  
72 </beans>  
73  

  1 package com.papio.realm;  
  2   
  3 import org.apache.commons.lang3.builder.ReflectionToStringBuilder;  
  4 import org.apache.commons.lang3.builder.ToStringStyle;  
  5 import org.apache.shiro.SecurityUtils;  
  6 import org.apache.shiro.authc.AuthenticationException;  
  7 import org.apache.shiro.authc.AuthenticationInfo;  
  8 import org.apache.shiro.authc.AuthenticationToken;  
  9 import org.apache.shiro.authc.SimpleAuthenticationInfo;  
 10 import org.apache.shiro.authc.UsernamePasswordToken;  
 11 import org.apache.shiro.authz.AuthorizationInfo;  
 12 import org.apache.shiro.authz.SimpleAuthorizationInfo;  
 13 import org.apache.shiro.realm.AuthorizingRealm;  
 14 import org.apache.shiro.session.Session;  
 15 import org.apache.shiro.subject.PrincipalCollection;  
 16 import org.apache.shiro.subject.Subject;  
 17   
 18 /** 
 19  * 自定义的指定Shiro验证用户登录的类 
 20  * @see 在本例中定义了2个用户:papio和big,papio具有admin角色和admin:manage权限,big不具有任何角色和权限 
 21  * @create
 22  * @author
 23  */  
 24 public class MyRealm extends AuthorizingRealm {  
 25     /** 
 26      * 为当前登录的Subject授予角色和权限 
 27      * @see 经测试:本例中该方法的调用时机为需授权资源被访问时 
 28      * @see 经测试:并且每次访问需授权资源时都会执行该方法中的逻辑,这表明本例中默认并未启用AuthorizationCache 
 29      * @see 个人感觉若使用了Spring3.1开始提供的ConcurrentMapCache支持,则可灵活决定是否启用AuthorizationCache 
 30      * @see 比如说这里从数据库获取权限信息时,先去访问Spring3.1提供的缓存,而不使用Shior提供的AuthorizationCache 
 31      */  
 32     @Override  
 33     protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals){  
 34         //获取当前登录的用户名,等价于(String)principals.fromRealm(this.getName()).iterator().next()  
 35         String currentUsername = (String)super.getAvailablePrincipal(principals);  
 36 //      List<String> roleList = new ArrayList<String>();  
 37 //      List<String> permissionList = new ArrayList<String>();  
 38 //      //从数据库中获取当前登录用户的详细信息  
 39 //      User user = userService.getByUsername(currentUsername);  
 40 //      if(null != user){  
 41 //          //实体类User中包含有用户角色的实体类信息  
 42 //          if(null!=user.getRoles() && user.getRoles().size()>0){  
 43 //              //获取当前登录用户的角色  
 44 //              for(Role role : user.getRoles()){  
 45 //                  roleList.add(role.getName());  
 46 //                  //实体类Role中包含有角色权限的实体类信息  
 47 //                  if(null!=role.getPermissions() && role.getPermissions().size()>0){  
 48 //                      //获取权限  
 49 //                      for(Permission pmss : role.getPermissions()){  
 50 //                          if(!StringUtils.isEmpty(pmss.getPermission())){  
 51 //                              permissionList.add(pmss.getPermission());  
 52 //                          }  
 53 //                      }  
 54 //                  }  
 55 //              }  
 56 //          }  
 57 //      }else{  
 58 //          throw new AuthorizationException();  
 59 //      }  
 60 //      //为当前用户设置角色和权限  
 61 //      SimpleAuthorizationInfo simpleAuthorInfo = new SimpleAuthorizationInfo();  
 62 //      simpleAuthorInfo.addRoles(roleList);  
 63 //      simpleAuthorInfo.addStringPermissions(permissionList);  
 64         SimpleAuthorizationInfo simpleAuthorInfo = new SimpleAuthorizationInfo();  
 65         //实际中可能会像上面注释的那样从数据库取得  
 66         if(null!=currentUsername && "papio".equals(currentUsername)){  
 67             //添加一个角色,不是配置意义上的添加,而是证明该用户拥有admin角色    
 68             simpleAuthorInfo.addRole("admin");  
 69             //添加权限  
 70             simpleAuthorInfo.addStringPermission("admin:manage");  
 71             System.out.println("已为用户[papio]赋予了[admin]角色和[admin:manage]权限");  
 72             return simpleAuthorInfo;  
 73         }else if(null!=currentUsername && "big".equals(currentUsername)){  
 74             System.out.println("当前用户[big]无授权");  
 75             return simpleAuthorInfo;  
 76         }  
 77         //若该方法什么都不做直接返回null的话,就会导致任何用户访问/admin/listUser.jsp时都会自动跳转到unauthorizedUrl指定的地址  
 78         //详见applicationContext.xml中的<bean id="shiroFilter">的配置  
 79         return null;  
 80     }  
 81   
 82       
 83     /** 
 84      * 验证当前登录的Subject 
 85      * @see 经测试:本例中该方法的调用时机为LoginController.login()方法中执行Subject.login()时 
 86      */  
 87     @Override  
 88     protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException {  
 89         //获取基于用户名和密码的令牌  
 90         //实际上这个authcToken是从LoginController里面currentUser.login(token)传过来的  
 91         //两个token的引用都是一样的,本例中是org.apache.shiro.authc.UsernamePasswordToken@33799a1e  
 92         UsernamePasswordToken token = (UsernamePasswordToken)authcToken;  
 93         System.out.println("验证当前Subject时获取到token为" + ReflectionToStringBuilder.toString(token, ToStringStyle.MULTI_LINE_STYLE));  
 94 //      User user = userService.getByUsername(token.getUsername());  
 95 //      if(null != user){  
 96 //          AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(user.getUsername(), user.getPassword(), user.getNickname());  
 97 //          this.setSession("currentUser", user);  
 98 //          return authcInfo;  
 99 //      }else{  
100 //          return null;  
101 //      }  
102         //此处无需比对,比对的逻辑Shiro会做,我们只需返回一个和令牌相关的正确的验证信息  
103         //说白了就是第一个参数填登录用户名,第二个参数填合法的登录密码(可以是从数据库中取到的,本例中为了演示就硬编码了)  
104         //这样一来,在随后的登录页面上就只有这里指定的用户和密码才能通过验证  
105         if("papio".equals(token.getUsername())){  
106             AuthenticationInfo authcInfo = new SimpleAuthenticationInfo("papio", "papio", this.getName());  
107             this.setSession("currentUser", "papio");  
108             return authcInfo;  
109         }else if("big".equals(token.getUsername())){  
110             AuthenticationInfo authcInfo = new SimpleAuthenticationInfo("big", "big", this.getName());  
111             this.setSession("currentUser", "big");  
112             return authcInfo;  
113         }  
114         //没有返回登录用户名对应的SimpleAuthenticationInfo对象时,就会在LoginController中抛出UnknownAccountException异常  
115         return null;  
116     }  
117       
118       
119     /** 
120      * 将一些数据放到ShiroSession中,以便于其它地方使用 
121      * @see 比如Controller,使用时直接用HttpSession.getAttribute(key)就可以取到 
122      */  
123     private void setSession(Object key, Object value){  
124         Subject currentUser = SecurityUtils.getSubject();  
125         if(null != currentUser){  
126             Session session = currentUser.getSession();  
127             System.out.println("Session默认超时时间为[" + session.getTimeout() + "]毫秒");  
128             if(null != session){  
129                 session.setAttribute(key, value);  
130             }  
131         }  
132     }  
133 }

  1 package com.papio.controller;  
  2   
  3 import java.awt.Color;  
  4 import java.awt.image.BufferedImage;  
  5 import java.io.IOException;  
  6   
  7 import javax.imageio.ImageIO;  
  8 import javax.servlet.http.HttpServletRequest;  
  9 import javax.servlet.http.HttpServletResponse;  
 10   
 11 import org.apache.commons.lang3.StringUtils;  
 12 import org.apache.commons.lang3.builder.ReflectionToStringBuilder;  
 13 import org.apache.commons.lang3.builder.ToStringStyle;  
 14 import org.apache.shiro.SecurityUtils;  
 15 import org.apache.shiro.authc.AuthenticationException;  
 16 import org.apache.shiro.authc.ExcessiveAttemptsException;  
 17 import org.apache.shiro.authc.IncorrectCredentialsException;  
 18 import org.apache.shiro.authc.LockedAccountException;  
 19 import org.apache.shiro.authc.UnknownAccountException;  
 20 import org.apache.shiro.authc.UsernamePasswordToken;  
 21 import org.apache.shiro.subject.Subject;  
 22 import org.apache.shiro.web.util.WebUtils;  
 23 import org.springframework.stereotype.Controller;  
 24 import org.springframework.web.bind.annotation.RequestMapping;  
 25 import org.springframework.web.bind.annotation.RequestMethod;  
 26 import org.springframework.web.servlet.view.InternalResourceViewResolver;  
 27  
 28   
 29 /** 
 30  * 本例中用到的jar文件如下 
 31  * @see aopalliance.jar 
 32  * @see commons-lang3-3.1.jar 
 33  * @see commons-logging-1.1.2.jar 
 34  * @see log4j-1.2.17.jar 
 35  * @see shiro-all-1.2.2.jar 
 36  * @see slf4j-api-1.7.5.jar 
 37  * @see slf4j-log4j12-1.7.5.jar 
 38  * @see spring-aop-3.2.4.RELEASE.jar 
 39  * @see spring-beans-3.2.4.RELEASE.jar 
 40  * @see spring-context-3.2.4.RELEASE.jar 
 41  * @see spring-core-3.2.4.RELEASE.jar 
 42  * @see spring-expression-3.2.4.RELEASE.jar 
 43  * @see spring-jdbc-3.2.4.RELEASE.jar 
 44  * @see spring-oxm-3.2.4.RELEASE.jar 
 45  * @see spring-tx-3.2.4.RELEASE.jar 
 46  * @see spring-web-3.2.4.RELEASE.jar 
 47  * @see spring-webmvc-3.2.4.RELEASE.jar 
 48  * @create Sep 30, 2013 11:10:06 PM 
 49  */  
 50 @Controller  
 51 @RequestMapping("mydemo")  
 52 public class LoginController {  
 53  
 54       
 55     /** 
 56      * 用户登录 
 57      */  
 58     @RequestMapping(value="/login", method=RequestMethod.POST)  
 59     public String login(HttpServletRequest request){  
 60         String resultPageURL = InternalResourceViewResolver.FORWARD_URL_PREFIX + "/";  
 61         String username = request.getParameter("username");  
 62         String password = request.getParameter("password");  
 63  
 64         UsernamePasswordToken token = new UsernamePasswordToken(username, password);  
 65         token.setRememberMe(true);  
 66         System.out.println("为了验证登录用户而封装的token为" + ReflectionToStringBuilder.toString(token, ToStringStyle.MULTI_LINE_STYLE));  
 67         //获取当前的Subject  
 68         Subject currentUser = SecurityUtils.getSubject();  
 69         try {  
 70             //在调用了login方法后,SecurityManager会收到AuthenticationToken,并将其发送给已配置的Realm执行必须的认证检查  
 71             //每个Realm都能在必要时对提交的AuthenticationTokens作出反应  
 72             //所以这一步在调用login(token)方法时,它会走到MyRealm.doGetAuthenticationInfo()方法中,具体验证方式详见此方法  
 73             System.out.println("对用户[" + username + "]进行登录验证..验证开始");  
 74             currentUser.login(token);  
 75             System.out.println("对用户[" + username + "]进行登录验证..验证通过");  
 76             resultPageURL = "main";  
 77         }catch(UnknownAccountException uae){  
 78             System.out.println("对用户[" + username + "]进行登录验证..验证未通过,未知账户");  
 79             request.setAttribute("message_login", "未知账户");  
 80         }catch(IncorrectCredentialsException ice){  
 81             System.out.println("对用户[" + username + "]进行登录验证..验证未通过,错误的凭证");  
 82             request.setAttribute("message_login", "密码不正确");  
 83         }catch(LockedAccountException lae){  
 84             System.out.println("对用户[" + username + "]进行登录验证..验证未通过,账户已锁定");  
 85             request.setAttribute("message_login", "账户已锁定");  
 86         }catch(ExcessiveAttemptsException eae){  
 87             System.out.println("对用户[" + username + "]进行登录验证..验证未通过,错误次数过多");  
 88             request.setAttribute("message_login", "用户名或密码错误次数过多");  
 89         }catch(AuthenticationException ae){  
 90             //通过处理Shiro的运行时AuthenticationException就可以控制用户登录失败或密码错误时的情景  
 91             System.out.println("对用户[" + username + "]进行登录验证..验证未通过,堆栈轨迹如下");  
 92             ae.printStackTrace();  
 93             request.setAttribute("message_login", "用户名或密码不正确");  
 94         }  
 95         //验证是否登录成功  
 96         if(currentUser.isAuthenticated()){  
 97             System.out.println("用户[" + username + "]登录认证通过(这里可以进行一些认证通过后的一些系统参数初始化操作)");  
 98         }else{  
 99             token.clear();  
100         }  
101         return resultPageURL;  
102     }  
103       
104       
105     /** 
106      * 用户登出 
107      */  
108     @RequestMapping("/logout")  
109     public String logout(HttpServletRequest request){  
110          SecurityUtils.getSubject().logout();  
111          return InternalResourceViewResolver.REDIRECT_URL_PREFIX + "/";  
112     }  
113 }

 1 package com.papio.controller;  
 2   
 3 import javax.servlet.http.HttpServletRequest;  
 4   
 5 import org.springframework.stereotype.Controller;  
 6 import org.springframework.web.bind.annotation.RequestMapping;  
 7   
 8 @Controller  
 9 @RequestMapping("mydemo")  
10 public class UserController {  
11     @RequestMapping(value="/getUserInfo")  
12     public String getUserInfo(HttpServletRequest request){  
13         String currentUser = (String)request.getSession().getAttribute("currentUser");  
14         System.out.println("当前登录的用户为[" + currentUser + "]");  
15         request.setAttribute("currUser", currentUser);  
16         return "/user/info";  
17     }  
18 }