Java SlingFilter不捕获异常？_Java_Servlet Filters_Aem_Sling

Java SlingFilter不捕获异常？

java aem

Java SlingFilter不捕获异常？,java,servlet-filters,aem,sling,Java,Servlet Filters,Aem,Sling,我正在实现一个身份验证过滤器，并将其用于异常处理。因为CQ5中没有web.xml，所以我们不能放置像这样的映射我的所有控制器（servlet）都将异常抛出回调用方。我有一个过滤器，在我的每个servlet之前调用。所以我明确地说 new SerlvetException() 在我的一个servlet中。这当然是抛出给调用方的，即我的主过滤器。异常在chain.doFilter（）处正确发生，我正在这里（在filter中）处理异常。但它就是无法处理为什么？另外，SlingFilter的

我正在实现一个身份验证过滤器，并将其用于异常处理。因为CQ5中没有web.xml，所以我们不能放置像

这样的映射

我的所有控制器（servlet）都将异常抛出回调用方。我有一个过滤器，在我的每个servlet之前调用。所以我明确地说

new SerlvetException()

在我的一个servlet中。这当然是抛出给调用方的，即我的主过滤器。异常在

chain.doFilter（）

处正确发生，我正在这里（在filter中）处理异常。但它就是无法处理为什么？另外，SlingFilter的作用域属性是什么？我不理解SlingFilter作用域的请求、错误、组件、包含属性
这是我的代码和堆栈跟踪

public class AddNewUserController extends SlingAllMethodsServlet{ /** * @author Oliver Kaunds */ private static final long serialVersionUID = 1L; private final Logger log = LoggerFactory.getLogger(this.getClass()); @Reference protected AddNewUserService addNewUserService; @Override protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException { log.info("VideoJet :: Do GET Called "); String path =request.getRequestURI(); log.info("VIDEOJET PATH :: "+ path); try{ if(path.equals("/services/videojet/v1/AddNewUserController/view")) { List<HRRepresentative> list =addNewUserService.getHRRepresentative(); request.setAttribute("hrList",list ); HttpSession session = request.getSession(); String userOperation =(String)session.getAttribute("userOp"); request.setAttribute("userOp", userOperation); session.removeAttribute("userOp"); throw new Exception("Error Page Test"); // Manuly throw exception }
异常发生正确，但未被catch块捕获。堆栈跟踪在下面

04.07.2014 11:46:26.395 *INFO* [0:0:0:0:0:0:0:1 [1404454586395] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.filters.HireSiteFilter HireSiteFilter Invoked 04.07.2014 11:46:26.395 *INFO* [0:0:0:0:0:0:0:1 [1404454586395] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.filters.HireSiteFilter Request URI on AJAX ::/services/videojet/v1/LoginController/validateUser 04.07.2014 11:46:26.395 *INFO* [0:0:0:0:0:0:0:1 [1404454586395] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.filters.HireSiteFilter HireSiteFilter :: Request to LoginController 04.07.2014 11:46:26.399 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.controllers.LoginController Do Post ************** 04.07.2014 11:46:26.399 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.controllers.LoginController The Username :::::foster 04.07.2014 11:46:26.399 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.controllers.LoginController The Password ::::::test 04.07.2014 11:46:26.399 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.daos.EmployeeDaoImp JCR QUERY 1::SELECT * FROM [nt:base] AS s WHERE ISDESCENDANTNODE('/content/videojetdata/HR_EMPLOYEE') AND NAME(s) = 'foster' 04.07.2014 11:46:26.864 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.daos.EmployeeDaoImp Query Check :: Presenttest 04.07.2014 11:46:26.866 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.services.login.LoginServiceImp The Passwrod from the daatabase+++++++test********** 04.07.2014 11:46:26.866 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.controllers.LoginController Username::foster 04.07.2014 11:46:26.866 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.controllers.LoginController Password::test 04.07.2014 11:46:26.869 *INFO* [0:0:0:0:0:0:0:1 [1404454586398] POST /services/videojet/v1/LoginController/validateUser HTTP/1.1] com.videojet.hiresite.daos.EmployeeDaoImp JCR Query::SELECT * FROM [nt:base] AS s WHERE ISDESCENDANTNODE('/content/videojetdata/HR_EMPLOYEE') AND NAME(s) = 'foster' 04.07.2014 11:46:26.943 *INFO* [0:0:0:0:0:0:0:1 [1404454586943] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.filters.HireSiteFilter HireSiteFilter Invoked 04.07.2014 11:46:26.943 *INFO* [0:0:0:0:0:0:0:1 [1404454586943] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.filters.HireSiteFilter Request URI on AJAX ::/services/videojet/v1/AddNewUserController/view 04.07.2014 11:46:26.943 *INFO* [0:0:0:0:0:0:0:1 [1404454586943] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.filters.HireSiteFilter HireSiteFilter :: Logged in 04.07.2014 11:46:26.945 *INFO* [0:0:0:0:0:0:0:1 [1404454586944] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.controllers.AddNewUserController VideoJet :: Do GET Called 04.07.2014 11:46:26.945 *INFO* [0:0:0:0:0:0:0:1 [1404454586944] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.controllers.AddNewUserController VIDEOJET PATH :: /services/videojet/v1/AddNewUserController/view 04.07.2014 11:46:26.945 *INFO* [0:0:0:0:0:0:0:1 [1404454586944] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.daos.HRRepresentativeDaoImp THE JCR QUERY ::SELECT * FROM [nt:base] AS s WHERE ISDESCENDANTNODE('/content/videojetdata/HR_REP') 04.07.2014 11:46:27.740 *INFO* [0:0:0:0:0:0:0:1 [1404454586944] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] org.apache.jackrabbit.core.query.lucene.DocNumberCache size=715/1024, #accesses=1001, #hits=256, #misses=745, cacheRatio=26% 04.07.2014 11:46:29.642 *INFO* [pool-6-thread-24-com/day/cq/replication/job/publish(com/day/cq/replication/job/publish)] com.day.cq.replication.impl.AgentManagerImpl Processing job for agent publish 04.07.2014 11:46:29.643 *INFO* [pool-6-thread-24-com/day/cq/replication/job/publish(com/day/cq/replication/job/publish)] com.day.cq.replication.Agent.publish Sending POST request to http://localhost:4503/bin/receive?sling:authRequestLogin=1 04.07.2014 11:46:29.893 *INFO* [0:0:0:0:0:0:0:1 [1404454586944] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] org.apache.jackrabbit.core.query.lucene.DocNumberCache size=121/1024, #accesses=1001, #hits=520, #misses=481, cacheRatio=52% 04.07.2014 11:46:30.604 *ERROR* [0:0:0:0:0:0:0:1 [1404454586944] GET /services/videojet/v1/AddNewUserController/view HTTP/1.1] com.videojet.hiresite.controllers.AddNewUserController VIDEJET EXCEPTION:: java.lang.Exception: Error Page Test at com.videojet.hiresite.controllers.AddNewUserController.doGet(com.videojet.hiresite.controllers.AddNewUserController.java:75) at org.apache.sling.api.servlets.SlingSafeMethodsServlet.mayService(SlingSafeMethodsServlet.java:268) at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsServlet.java:139) at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:344) at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:375) at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:500) at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64) at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:147) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.java:308) at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:141) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:257) at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:49) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64) at com.day.cq.wcm.core.impl.warp.TimeWarpFilter.doFilter(TimeWarpFilter.java:106) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.mobile.core.impl.redirect.RedirectFilter.doFilter(RedirectFilter.java:296) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:59) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.foundation.forms.impl.FormsHandlingServlet.doFilter(FormsHandlingServlet.java:220) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.theme.impl.ThemeResolverFilter.doFilter(ThemeResolverFilter.java:76) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:117) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:89) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.rewriter.impl.RewriterFilter.doFilter(RewriterFilter.java:83) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.bgservlets.impl.BackgroundServletStarterFilter.doFilter(BackgroundServletStarterFilter.java:135) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processRequest(SlingRequestProcessorImpl.java:153) at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:206) at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:96) at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79) at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:117) at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88) at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:238) at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88) at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:179) at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88) at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at com.videojet.hiresite.filters.HireSiteFilter.doFilter(com.videojet.hiresite.filters.HireSiteFilter.java:65) at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88) at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:78) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:75) at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88) at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76) at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47) at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33) at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48) at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39) at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:250) at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315) at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334) at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:377) at com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:351) at com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:625) at java.lang.Thread.run(Unknown Source

吊索过滤器作用域的解释见
尝试使用作用域作为 @SlingFilter（范围=SlingFilterScope.COMPONENT，顺序=-10000，元类型= （错误）我想你的情况应该是SlingFilterScope.ERROR
sling.filter.scope–指示过滤器应安装的过滤器链成为其中的一部分。必修的！如果不是，Sling不会拿起你的过滤器设定
此外，首先检查过滤器条件，如下所示

public void doFilter(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException { if (!(pRequest instanceof SlingHttpServletRequest)) { throw new ServletException("Request is not a Sling HTTP request."); } if (isFilterEnabled(slingRequest)) { // Implement Filter-Logic } else { // continue with filter chaining pChain.doFilter(pRequest, pResponse); } }

servlet过滤器可以用于什么？ 1.基于用户身份的认证阻塞请求 2.日志记录和审核-跟踪web应用程序的使用 3.图像转换-缩放贴图等 4.数据压缩-使下载更小 5.本地化-针对特定地区的请求和响应 6.XML内容的XSL/T转换

我不确定，但我认为它不支持异常处理。请检查一次。
您在slingFilter中处理过哪些类型的异常？处理ServletException时可能会出现不同的异常。这可能导致问题。处理java.lang.Exception很容易。在catch块中，我使用了java.lang.Exception
catch（Exception e）
是的，我不理解它们。。。我读过。你能给我解释一下吗？
public void doFilter(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException { if (!(pRequest instanceof SlingHttpServletRequest)) { throw new ServletException("Request is not a Sling HTTP request."); } if (isFilterEnabled(slingRequest)) { // Implement Filter-Logic } else { // continue with filter chaining pChain.doFilter(pRequest, pResponse); } }