springSecurity中动态权限控制 spring security动态授权

Spring Security 可动态授权RBAC权限模块实践

先在web.xml 中配置一个过滤器（必须在Struts的过滤器之前）

 

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1. <filter>  
2. <filter-name>springSecurityFilterChain</filter-name>  
3. <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>  
4. </filter>  
5. <filter-mapping>  
6. <filter-name>springSecurityFilterChain</filter-name>  
7. <url-pattern>/*</url-pattern>  
8. </filter-mapping>

然后就是编写Spring安全的配置文件applicationContext-security.xml并配置到Spring解析的路径下

 

Spring Security主要做两件事，一件是认证，一件是授权。

 

认证

当用户访问受保护的信息却没有登录获得认证时，框架会自动将请求跳转到登录页面

在http标签中的

[html]  view plain copy

1. <form-login login-page="/page/login.jsp" />

配置。且该登录页面必须是不被拦截的。故要配置上

[html]  view plain copy

1. <intercept-url pattern="/page/login.jsp" filters="none" />

Web项目的认证如果在HTTP标签中配置了auto-config="true"，框架就会自动的配置多8？个拦截器。 默认表单登录认证的是FORM_LOGIN_FILTER拦截器，我们可以直接写自定义的UserDetailsService，在这个类中实现方法UserDetails loadUserByUsername(String username)，从数据库获取用户信息，以及其拥有的角色。

[java]  view plain copy

1. @Service("myUserDetailsService")  
2. public class MyUserDetailsServiceImpl extends BaseService implements UserDetailsService {  
3. @Resource  
4. private UserDao userDao;  
5.   
6.   
7. public UserDetails loadUserByUsername(String username)  
8. throws UsernameNotFoundException, DataAccessException {  
9.   
10. User user = userDao.getUserByUsername(username);  
11. List<Role> roles = user.getRoles();  
12. Collection<GrantedAuthority> authorities = new LinkedList<GrantedAuthority>();  
13.   
14. for (Role role : roles) {  
15. authorities.add(new GrantedAuthorityImpl(role.getCode()));  
16. }  
17.   
18. UserDetails userDetails = new org.springframework.security.core.userdetails.User(username,user.getPassword(),Constants.STATE_VALID.equals(user.getState()),true,true,true,authorities);  
19.   
20. return userDetails;  
21. }  
22.   
23.   
24. }

配置在

 

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1. <authentication-manager alias="myAuthenticationManager">  
2. <authentication-provider user-service-ref="myUserDetailsService">  
3. <password-encoder hash="md5" />  
4. </authentication-provider>  
5. </authentication-manager>

如果需要在登录的时候，在HTTP SESSION中配置做些操作的。就得配置自定义的FORM_LOGIN_FILTER了

 

在HTTP标签中加入

[html]  view plain copy

1. <custom-filter ref="loginFilter" before="FORM_LOGIN_FILTER" />

并配置

[html]  view plain copy

1. <!-- 访问控制验证器Authority -->  
2. <beans:bean id="securityFilter"  
3. class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">  
4. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
5. <beans:property name="accessDecisionManager"  
6. ref="affirmativeBasedAccessDecisionManager" />  
7. <beans:property name="securityMetadataSource" ref="mySecurityMetadataSource"/>  
8. </beans:bean>

MyUsernamePasswordAuthenticationFilter 类是这么写的

[java]  view plain copy

1. public class MyUsernamePasswordAuthenticationFilter extends UsernamePasswordAuthenticationFilter{  
2. public static final String USERNAME = "username";  
3. public static final String PASSWORD = "password";  
4.   
5. @Resource  
6. private LoginService loginService;  
7. private UserLoginFormBean userLoginFormBean = new UserLoginFormBean();  
8.   
9. @Resource  
10. private LogService logService;  
11.   
12.   
13.   
14. @Override  
15. public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {  
16. String username = obtainUsername(request);  
17. String password = obtainPassword(request);  
18.   
19. HttpSession session = request.getSession();  
20.   
21. userLoginFormBean.setUsername(obtainUsername(request));  
22. userLoginFormBean.setPassword(obtainPassword(request));  
23.   
24. User user = loginService.login(userLoginFormBean);  
25. session.setAttribute(Constants.SESSION_USER, user);  
26.   
27.   
28. Log log = new Log(user,getIpAddr(request),"用户登录", null);  
29. logService.add(log);  
30.   
31. //UsernamePasswordAuthenticationToken实现 Authentication  
32. UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, password);  
33. // Place the last username attempted into HttpSession for views  
34.   
35. // 允许子类设置详细属性  
36.         setDetails(request, authRequest);  
37.   
38. // 运行UserDetailsService的loadUserByUsername 再次封装Authentication  
39. return this.getAuthenticationManager().authenticate(authRequest);  
40. }  
41.   
42.   
43.   
44. }

getAuthenticationManager().authenticate(authRequest)是为了让UserDetailService提供Detailed的信息并认证

授权

在授权时，系统默认通过FILTER_SECURITY_INTERCEPTOR认证。


如需自定义授权拦截器，我们在HTTP中在默认授权拦截器前配置了自定义的拦截器

[html]  view plain copy

1. <custom-filter ref="securityFilter" before="FILTER_SECURITY_INTERCEPTOR" />

本平台采用基于请求URL地址的验证方式

securityFilter的配置如下

[html]  view plain copy

采用默认的自定义的也是采用Spring默认的FilterSecurityInterceptor拦截器，accessDecisionManager也采用的是框架提供的affirmativeBasedAccessDecisionManager

1. <!-- 访问控制验证器Authority -->  
2. <beans:bean id="securityFilter"  
3. class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">  
4. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
5. <beans:property name="accessDecisionManager"  
6. ref="affirmativeBasedAccessDecisionManager" />  
7. <beans:property name="securityMetadataSource" ref="mySecurityMetadataSource"/>  
8. </beans:bean>

采用投票者来判断是否授权。

[html]  view plain copy

1. <beans:bean id="affirmativeBasedAccessDecisionManager"  
2. class="org.springframework.security.access.vote.AffirmativeBased">  
3. <beans:property name="decisionVoters" ref="roleDecisionVoter" />  
4. </beans:bean>  
5.       
6. <beans:bean name="roleDecisionVoter"  
7. class="org.springframework.security.access.vote.RoleVoter" />  
8.           
9. <beans:bean id="mySecurityMetadataSource"  
10. class="org.springframework.security.web.access.intercept.DefaultFilterInvocationSecurityMetadataSource">  
11. <beans:constructor-arg  
12. type="org.springframework.security.web.util.UrlMatcher" ref="antUrlPathMatcher" />  
13. <beans:constructor-arg type="java.util.LinkedHashMap"  
14. ref="securityRequestMapFactoryBean" />  
15. </beans:bean>

SecurityMetadataSource也是ss web框架提供的DefaultFilterInvocationSecurityMetadataSource，只是初始化参数中，一个选择antUrl匹配，还是正则匹配，另一个是提供自定义的通过securityRequestMapFactoryBean。在后者是一个LinkedHashMap<RequestKey, Collection<ConfigAttribute>>类型，就是每一个URL匹配模式，所需要角色的集合。

[java]  view plain copy

1. @Service("securityRequestMapFactoryBean")  
2. public class SecurityRequestMapFactoryBean extends  
3.         LinkedHashMap<RequestKey, Collection<ConfigAttribute>> {  
4.       
5. @Resource  
6. private ModuleDao moduleDao;  
7.       
8. @PostConstruct  
9. public void loadSecurityInfos(){  
10. new Module());  
11. //      List<Role> roles = roleDao.getAll(new Role());  
12. for (Module module : modules) {  
13. new RequestKey(module.getPageUrl());  
14. new LinkedList<ConfigAttribute>();  
15. for (final Role role : module.getRoles()) {  
16. new ConfigAttribute() {  
17. public String getAttribute() {  
18. return role.getCode();  
19.                     }  
20.                 });  
21.             }  
22. this.put(requestKey, configAttributes);  
23.         }  
24.     }  
25.       
26. }

PS: 最终的件applicationContext-security.xml配置文件

 

 

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1. <pre name="code" class="html"><?xml version="1.0" encoding="UTF-8"?>  
2. <beans:beans xmlns="http://www.springframework.org/schema/security"  
3. xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4. xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
5. >  
6.   
7. <http auto-config="true">  
8. <intercept-url pattern="/page/login.jsp" filters="none" />  
9. <intercept-url pattern="/LoginAction*" filters="none" />  
10. <intercept-url pattern="/common/**" filters="none" />  
11. <intercept-url pattern="/css/**" filters="none" />  
12. <intercept-url pattern="/common/**" filters="none" />  
13. <intercept-url pattern="/images/**" filters="none" />  
14. <intercept-url pattern="/js/**" filters="none" />  
15.   
16. <form-login login-page="/page/login.jsp" />  
17. <custom-filter ref="loginFilter" before="FORM_LOGIN_FILTER" />  
18. <custom-filter ref="securityFilter" before="FILTER_SECURITY_INTERCEPTOR" />  
19. </http>  
20.   
21. <!-- 访问控制验证器Authority -->  
22. <beans:bean id="securityFilter"  
23. class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">  
24. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
25. <beans:property name="accessDecisionManager"  
26. ref="affirmativeBasedAccessDecisionManager" />  
27. <beans:property name="securityMetadataSource" ref="mySecurityMetadataSource"/>  
28. </beans:bean>  
29.   
30. <!-- 登录验证器Authentication -->  
31. <beans:bean id="loginFilter"  
32. class="com.epro.crm.util.security.MyUsernamePasswordAuthenticationFilter">  
33. <!-- 处理登录的action -->  
34. <beans:property name="filterProcessesUrl" value="/SecurityCheck" />  
35. <!-- 验证成功后的处理-->  
36. <beans:property name="authenticationSuccessHandler"  
37. ref="loginLogAuthenticationSuccessHandler" />  
38. <!-- 验证失败后的处理-->  
39. <beans:property name="authenticationFailureHandler"  
40. ref="simpleUrlAuthenticationFailureHandler" />  
41. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
42. <!-- 注入DAO为了查询相应的用户 -->  
43. <beans:property name="loginService" ref="loginService" />  
44. <beans:property name="logService" ref="logService" />  
45. </beans:bean>  
46.   
47. <authentication-manager alias="myAuthenticationManager">  
48. <authentication-provider user-service-ref="myUserDetailsService">  
49. <password-encoder hash="md5" />  
50. </authentication-provider>  
51. </authentication-manager>  
52.   
53. <beans:bean id="mySecurityMetadataSource"  
54. class="org.springframework.security.web.access.intercept.DefaultFilterInvocationSecurityMetadataSource">  
55. <beans:constructor-arg  
56. type="org.springframework.security.web.util.UrlMatcher" ref="antUrlPathMatcher" />  
57. <beans:constructor-arg type="java.util.LinkedHashMap"  
58. ref="securityRequestMapFactoryBean" />  
59. </beans:bean>  
60.   
61. <beans:bean id="antUrlPathMatcher"  
62. class="org.springframework.security.web.util.AntUrlPathMatcher" />  
63.           
64. <beans:bean id="affirmativeBasedAccessDecisionManager"  
65. class="org.springframework.security.access.vote.AffirmativeBased">  
66. <beans:property name="decisionVoters" ref="roleDecisionVoter" />  
67. </beans:bean>  
68.   
69. <beans:bean name="roleDecisionVoter"  
70. class="org.springframework.security.access.vote.RoleVoter" />  
71.   
72. <beans:bean id="loginLogAuthenticationSuccessHandler"  
73. class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">  
74. <beans:property name="defaultTargetUrl" value="/page/main.jsp"></beans:property>  
75. </beans:bean>  
76.   
77. <beans:bean id="simpleUrlAuthenticationFailureHandler"  
78. class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">  
79. <!--
80.             可以配置相应的跳转方式。属性forwardToDestination为true采用forward false为sendRedirect
81.         -->  
82. <beans:property name="defaultFailureUrl" value="/page/login.jsp"></beans:property>  
83. </beans:bean>  
84.   
85. <!-- 未登录的切入点 -->  
86. <beans:bean id="authenticationProcessingFilterEntryPoint"  
87. class="org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint">  
88. <beans:property name="loginFormUrl" value="/page/login.jsp"></beans:property>  
89. </beans:bean>  
90.   
91. </beans:beans>

------------------------------------------------------ 分割线 -----------------------------------------------------------------

后记：

由于权限配置信息，是由初始化mySecurityMetadataSource时，就由mySecurityMetadataSource读取提供的权限信息，并缓存与该类的私有成员变量中，所以重新加载时就需要重新新建一个对象

[java]  view plain copy

1. public void loadSecurityInfos(){  
2. this.clear();  
3. new Module());  
4.         Collections.sort(modules);  
5. for (Module module : modules) {  
6. new RequestKey(module.getPageUrl());  
7. new LinkedList<ConfigAttribute>();  
8.             moduleDao.refresh(module);  
9.             List<Role> roles = module.getRoles();  
10. if(roles != null){  
11. for (final Role role : roles) {  
12. new ConfigAttribute() {  
13. public String getAttribute() {  
14. return role.getCode();  
15.                         }  
16.                     });  
17.                 }  
18.             }  
19.               
20. this.put(requestKey, configAttributes);  
21. "模块 URL模式：" + requestKey + " 授权角色："+ roles);  
22.         }  
23.     }

先在web.xml 中配置一个过滤器（必须在Struts的过滤器之前）

 

[html]  view plain copy

1. <filter>  
2. <filter-name>springSecurityFilterChain</filter-name>  
3. <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>  
4. </filter>  
5. <filter-mapping>  
6. <filter-name>springSecurityFilterChain</filter-name>  
7. <url-pattern>/*</url-pattern>  
8. </filter-mapping>

然后就是编写Spring安全的配置文件applicationContext-security.xml并配置到Spring解析的路径下

 

Spring Security主要做两件事，一件是认证，一件是授权。

 

认证

当用户访问受保护的信息却没有登录获得认证时，框架会自动将请求跳转到登录页面

在http标签中的

[html]  view plain copy

1. <form-login login-page="/page/login.jsp" />

配置。且该登录页面必须是不被拦截的。故要配置上

[html]  view plain copy

1. <intercept-url pattern="/page/login.jsp" filters="none" />

Web项目的认证如果在HTTP标签中配置了auto-config="true"，框架就会自动的配置多8？个拦截器。 默认表单登录认证的是FORM_LOGIN_FILTER拦截器，我们可以直接写自定义的UserDetailsService，在这个类中实现方法UserDetails loadUserByUsername(String username)，从数据库获取用户信息，以及其拥有的角色。

[java]  view plain copy

1. @Service("myUserDetailsService")  
2. public class MyUserDetailsServiceImpl extends BaseService implements UserDetailsService {  
3. @Resource  
4. private UserDao userDao;  
5.   
6.   
7. public UserDetails loadUserByUsername(String username)  
8. throws UsernameNotFoundException, DataAccessException {  
9.   
10. User user = userDao.getUserByUsername(username);  
11. List<Role> roles = user.getRoles();  
12. Collection<GrantedAuthority> authorities = new LinkedList<GrantedAuthority>();  
13.   
14. for (Role role : roles) {  
15. authorities.add(new GrantedAuthorityImpl(role.getCode()));  
16. }  
17.   
18. UserDetails userDetails = new org.springframework.security.core.userdetails.User(username,user.getPassword(),Constants.STATE_VALID.equals(user.getState()),true,true,true,authorities);  
19.   
20. return userDetails;  
21. }  
22.   
23.   
24. }

配置在

 

[html]  view plain copy

1. <authentication-manager alias="myAuthenticationManager">  
2. <authentication-provider user-service-ref="myUserDetailsService">  
3. <password-encoder hash="md5" />  
4. </authentication-provider>  
5. </authentication-manager>

如果需要在登录的时候，在HTTP SESSION中配置做些操作的。就得配置自定义的FORM_LOGIN_FILTER了

 

在HTTP标签中加入

[html]  view plain copy

1. <custom-filter ref="loginFilter" before="FORM_LOGIN_FILTER" />

并配置

[html]  view plain copy

1. <!-- 访问控制验证器Authority -->  
2. <beans:bean id="securityFilter"  
3. class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">  
4. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
5. <beans:property name="accessDecisionManager"  
6. ref="affirmativeBasedAccessDecisionManager" />  
7. <beans:property name="securityMetadataSource" ref="mySecurityMetadataSource"/>  
8. </beans:bean>

MyUsernamePasswordAuthenticationFilter 类是这么写的

[java]  view plain copy

1. public class MyUsernamePasswordAuthenticationFilter extends UsernamePasswordAuthenticationFilter{  
2. public static final String USERNAME = "username";  
3. public static final String PASSWORD = "password";  
4.   
5. @Resource  
6. private LoginService loginService;  
7. private UserLoginFormBean userLoginFormBean = new UserLoginFormBean();  
8.   
9. @Resource  
10. private LogService logService;  
11.   
12.   
13.   
14. @Override  
15. public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {  
16. String username = obtainUsername(request);  
17. String password = obtainPassword(request);  
18.   
19. HttpSession session = request.getSession();  
20.   
21. userLoginFormBean.setUsername(obtainUsername(request));  
22. userLoginFormBean.setPassword(obtainPassword(request));  
23.   
24. User user = loginService.login(userLoginFormBean);  
25. session.setAttribute(Constants.SESSION_USER, user);  
26.   
27.   
28. Log log = new Log(user,getIpAddr(request),"用户登录", null);  
29. logService.add(log);  
30.   
31. //UsernamePasswordAuthenticationToken实现 Authentication  
32. UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, password);  
33. // Place the last username attempted into HttpSession for views  
34.   
35. // 允许子类设置详细属性  
36.         setDetails(request, authRequest);  
37.   
38. // 运行UserDetailsService的loadUserByUsername 再次封装Authentication  
39. return this.getAuthenticationManager().authenticate(authRequest);  
40. }  
41.   
42.   
43.   
44. }

getAuthenticationManager().authenticate(authRequest)是为了让UserDetailService提供Detailed的信息并认证

 

授权

在授权时，系统默认通过FILTER_SECURITY_INTERCEPTOR认证。


如需自定义授权拦截器，我们在HTTP中在默认授权拦截器前配置了自定义的拦截器

[html]  view plain copy

1. <custom-filter ref="securityFilter" before="FILTER_SECURITY_INTERCEPTOR" />

本平台采用基于请求URL地址的验证方式

securityFilter的配置如下

[html]  view plain copy

1. <!-- 访问控制验证器Authority -->  
2. <beans:bean id="securityFilter"  
3. class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">  
4. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
5. <beans:property name="accessDecisionManager"  
6. ref="affirmativeBasedAccessDecisionManager" />  
7. <beans:property name="securityMetadataSource" ref="mySecurityMetadataSource"/>  
8. </beans:bean>

采用默认的自定义的也是采用Spring默认的FilterSecurityInterceptor拦截器，accessDecisionManager也采用的是框架提供的affirmativeBasedAccessDecisionManager

采用投票者来判断是否授权。

[html]  view plain copy

1. <beans:bean id="affirmativeBasedAccessDecisionManager"  
2. class="org.springframework.security.access.vote.AffirmativeBased">  
3. <beans:property name="decisionVoters" ref="roleDecisionVoter" />  
4. </beans:bean>  
5.       
6. <beans:bean name="roleDecisionVoter"  
7. class="org.springframework.security.access.vote.RoleVoter" />  
8.           
9. <beans:bean id="mySecurityMetadataSource"  
10. class="org.springframework.security.web.access.intercept.DefaultFilterInvocationSecurityMetadataSource">  
11. <beans:constructor-arg  
12. type="org.springframework.security.web.util.UrlMatcher" ref="antUrlPathMatcher" />  
13. <beans:constructor-arg type="java.util.LinkedHashMap"  
14. ref="securityRequestMapFactoryBean" />  
15. </beans:bean>

SecurityMetadataSource也是ss web框架提供的DefaultFilterInvocationSecurityMetadataSource，只是初始化参数中，一个选择antUrl匹配，还是正则匹配，另一个是提供自定义的通过securityRequestMapFactoryBean。在后者是一个LinkedHashMap<RequestKey, Collection<ConfigAttribute>>类型，就是每一个URL匹配模式，所需要角色的集合。

[java]  view plain copy

1. @Service("securityRequestMapFactoryBean")  
2. public class SecurityRequestMapFactoryBean extends  
3.         LinkedHashMap<RequestKey, Collection<ConfigAttribute>> {  
4.       
5. @Resource  
6. private ModuleDao moduleDao;  
7.       
8. @PostConstruct  
9. public void loadSecurityInfos(){  
10. new Module());  
11. //      List<Role> roles = roleDao.getAll(new Role());  
12. for (Module module : modules) {  
13. new RequestKey(module.getPageUrl());  
14. new LinkedList<ConfigAttribute>();  
15. for (final Role role : module.getRoles()) {  
16. new ConfigAttribute() {  
17. public String getAttribute() {  
18. return role.getCode();  
19.                     }  
20.                 });  
21.             }  
22. this.put(requestKey, configAttributes);  
23.         }  
24.     }  
25.       
26. }

PS: 最终的件applicationContext-security.xml配置文件

 

 

[html]  view plain copy

1. <pre name="code" class="html"><?xml version="1.0" encoding="UTF-8"?>  
2. <beans:beans xmlns="http://www.springframework.org/schema/security"  
3. xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4. xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
5. >  
6.   
7. <http auto-config="true">  
8. <intercept-url pattern="/page/login.jsp" filters="none" />  
9. <intercept-url pattern="/LoginAction*" filters="none" />  
10. <intercept-url pattern="/common/**" filters="none" />  
11. <intercept-url pattern="/css/**" filters="none" />  
12. <intercept-url pattern="/common/**" filters="none" />  
13. <intercept-url pattern="/images/**" filters="none" />  
14. <intercept-url pattern="/js/**" filters="none" />  
15.   
16. <form-login login-page="/page/login.jsp" />  
17. <custom-filter ref="loginFilter" before="FORM_LOGIN_FILTER" />  
18. <custom-filter ref="securityFilter" before="FILTER_SECURITY_INTERCEPTOR" />  
19. </http>  
20.   
21. <!-- 访问控制验证器Authority -->  
22. <beans:bean id="securityFilter"  
23. class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">  
24. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
25. <beans:property name="accessDecisionManager"  
26. ref="affirmativeBasedAccessDecisionManager" />  
27. <beans:property name="securityMetadataSource" ref="mySecurityMetadataSource"/>  
28. </beans:bean>  
29.   
30. <!-- 登录验证器Authentication -->  
31. <beans:bean id="loginFilter"  
32. class="com.epro.crm.util.security.MyUsernamePasswordAuthenticationFilter">  
33. <!-- 处理登录的action -->  
34. <beans:property name="filterProcessesUrl" value="/SecurityCheck" />  
35. <!-- 验证成功后的处理-->  
36. <beans:property name="authenticationSuccessHandler"  
37. ref="loginLogAuthenticationSuccessHandler" />  
38. <!-- 验证失败后的处理-->  
39. <beans:property name="authenticationFailureHandler"  
40. ref="simpleUrlAuthenticationFailureHandler" />  
41. <beans:property name="authenticationManager" ref="myAuthenticationManager" />  
42. <!-- 注入DAO为了查询相应的用户 -->  
43. <beans:property name="loginService" ref="loginService" />  
44. <beans:property name="logService" ref="logService" />  
45. </beans:bean>  
46.   
47. <authentication-manager alias="myAuthenticationManager">  
48. <authentication-provider user-service-ref="myUserDetailsService">  
49. <password-encoder hash="md5" />  
50. </authentication-provider>  
51. </authentication-manager>  
52.   
53. <beans:bean id="mySecurityMetadataSource"  
54. class="org.springframework.security.web.access.intercept.DefaultFilterInvocationSecurityMetadataSource">  
55. <beans:constructor-arg  
56. type="org.springframework.security.web.util.UrlMatcher" ref="antUrlPathMatcher" />  
57. <beans:constructor-arg type="java.util.LinkedHashMap"  
58. ref="securityRequestMapFactoryBean" />  
59. </beans:bean>  
60.   
61. <beans:bean id="antUrlPathMatcher"  
62. class="org.springframework.security.web.util.AntUrlPathMatcher" />  
63.           
64. <beans:bean id="affirmativeBasedAccessDecisionManager"  
65. class="org.springframework.security.access.vote.AffirmativeBased">  
66. <beans:property name="decisionVoters" ref="roleDecisionVoter" />  
67. </beans:bean>  
68.   
69. <beans:bean name="roleDecisionVoter"  
70. class="org.springframework.security.access.vote.RoleVoter" />  
71.   
72. <beans:bean id="loginLogAuthenticationSuccessHandler"  
73. class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">  
74. <beans:property name="defaultTargetUrl" value="/page/main.jsp"></beans:property>  
75. </beans:bean>  
76.   
77. <beans:bean id="simpleUrlAuthenticationFailureHandler"  
78. class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">  
79. <!--
80.             可以配置相应的跳转方式。属性forwardToDestination为true采用forward false为sendRedirect
81.         -->  
82. <beans:property name="defaultFailureUrl" value="/page/login.jsp"></beans:property>  
83. </beans:bean>  
84.   
85. <!-- 未登录的切入点 -->  
86. <beans:bean id="authenticationProcessingFilterEntryPoint"  
87. class="org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint">  
88. <beans:property name="loginFormUrl" value="/page/login.jsp"></beans:property>  
89. </beans:bean>  
90.   
91. </beans:beans>

------------------------------------------------------ 分割线 -----------------------------------------------------------------

后记：

由于权限配置信息，是由初始化mySecurityMetadataSource时，就由mySecurityMetadataSource读取提供的权限信息，并缓存与该类的私有成员变量中，所以重新加载时就需要重新新建一个对象

[java]  view plain copy

1. public void loadSecurityInfos(){  
2. this.clear();  
3. new Module());  
4.         Collections.sort(modules);  
5. for (Module module : modules) {  
6. new RequestKey(module.getPageUrl());  
7. new LinkedList<ConfigAttribute>();  
8.             moduleDao.refresh(module);  
9.             List<Role> roles = module.getRoles();  
10. if(roles != null){  
11. for (final Role role : roles) {  
12. new ConfigAttribute() {  
13. public String getAttribute() {  
14. return role.getCode();  
15.                         }  
16.                     });  
17.                 }  
18.             }  
19.               
20. this.put(requestKey, configAttributes);  
21. "模块 URL模式：" + requestKey + " 授权角色："+ roles);  
22.         }  
23.     }