Spring自定义授权无法使用@PreAuthorize

Question

我正在尝试在我的 spring (3.2.2) mvc 应用程序中实现自定义 @PreAuthorize 方法。但是，每当我单击应该将我带到实现@PreAuthorize 的控制器方法的链接时，它都会给我这个错误：

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.security.authentication.AuthenticationCredentialsNotFoundException: An Authentication object was not found in the SecurityContext
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)


root cause 

org.springframework.security.authentication.AuthenticationCredentialsNotFoundException: An Authentication object was not found in the SecurityContext
    org.springframework.security.access.intercept.AbstractSecurityInterceptor.credentialsNotFound(AbstractSecurityInterceptor.java:339)
    org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:198)
    org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:60)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)
    com.nav.qanda.admin.question.controller.AdminQuestionController$$EnhancerByCGLIB$$5bcda356_2.handleRequest(<generated>)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:606)
    org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

这是我的 app-servlet.xml

  <security:global-method-security pre-post-annotations="enabled">
    <security:expression-handler ref="expressionHandler" />
  </security:global-method-security>

  <bean id="expressionHandler" class="com.nav.panda.security.PandaMethodSecurityExpressionHandler" />

这些是覆盖的 java 文件

public class PandaMethodSecurityExpressionHandler extends DefaultMethodSecurityExpressionHandler{
      @Override
      protected MethodSecurityExpressionOperations createSecurityExpressionRoot(Authentication authentication,
              MethodInvocation invocation){
        PandaMethodSecurityExpressionRoot root = new PandaMethodSecurityExpressionRoot(authentication);
        root.setThis(invocation.getThis());
        return root;
      }



public class PandaMethodSecurityExpressionRoot implements MethodSecurityExpressionOperations {


    private Object filterObject;
    private Object returnObject;
    private Object target;


    public  boolean adminOnly() {
        System.out.println("Checking admin authority");
        return true;
//     return  this.hasAuthority("ADMIN");
    } ... other methods

控制器看起来像这样：

@RequestMapping(value = "/createPandaPage", method = RequestMethod.GET)
      @PreAuthorize("adminOnly()")
      public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
                throws ServletException, IOException {
           return new ModelAndView("admin/createPanda");
       }

web.xml：

<filter>
  <filter-name>springSecurityFilterChain</filter-name>
  <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
 </filter>

 <filter-mapping>
  <filter-name>springSecurityFilterChain</filter-name>
  <url-pattern>/*</url-pattern>
 </filter-mapping> 

我的应用程序中的登录将从我的应用程序中填充一个用户对象（它具有从数据库读取填充的用户权限）。如何通过此用户对象来检查权限？而且，我还需要做什么才能使其正常工作？

Answer 1

导致该方法被调用的请求需要经过Spring Security过滤器链，否则在权限检查时将没有可用的安全上下文。

没有看到堆栈跟踪的其余部分，我不能说 100%，但看起来这就是这里发生的事情，考虑到您看到的异常（如果您搜索错误消息，您应该会发现类似的问题）。

因此，您需要确保您想要保护的所有请求都由安全过滤器链处理，并且您的过滤器链配置正确（如果您使用命名空间，它应该自动配置）。