我试图在CQ中创建一个servlet来访问一些后端服务。然后从我的页面进行AJAX调用以获取servlet的响应。
@Component(immediate = true, metatype = false, label = "feedServlet")
@Service(Servlet.class)
@Properties(value = {
@org.apache.felix.scr.annotations.Property(name = "sling.servlet.methods", value = "POST"),
@org.apache.felix.scr.annotations.Property(name = "sling.servlet.resourceTypes", value ="/bin/feedServlet/"),
@org.apache.felix.scr.annotations.Property(name = "sling.servlet.selectors", value ="POST"),
@org.apache.felix.scr.annotations.Property(name = "sling.servlet.extensions", value ="html")
})
/**
* This servlet returns search results in json format.
*/
public class FeedServlet extends SlingAllMethodsServlet {
private static final long serialVersionUID = -2139716879248038562L;
/*
* Inject the service in to the servlet.
*/
// @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY, policy = ReferencePolicy.STATIC)
// private SearchService searchService;
// @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY, policy = ReferencePolicy.STATIC)
// private FeedGeneratorService feedService;
/*
* @Reference private SlingRepository repository;
*/
/**
* Bind repository.
*
* @param repository the repository
*/
/*
* public void bindRepository(SlingRepository repository) { this.repository = repository; }
*/
/*
* (non-Javadoc)
*
* @see org.apache.sling.api.servlets.SlingAllMethodsServlet#doPost(org.apache.sling.api.SlingHttpServletRequest,
* org.apache.sling.api.SlingHttpServletResponse)
*/
@Override
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServerException,
IOException {
String feed = "test test test";
response.getWriter().write(feed);
}
从我的页面开始，
$(document).ready(function(){
$("#button1").click(function(){
alert(0);
var formData = 'tcc=123';
$.ajax({
url : '/bin/feedServlet/',
type: 'POST',
data : formData,
success: function(data, textStatus, jqXHR)
{
alert("1 : "+data);
// alert(eval(jqXHR));
//data - response from server
},
error: function (jqXHR, textStatus, errorThrown)
{
alert(errorThrown);
}
});
});
});
但是，在提出请求时我收到了错误：
18.04.2014 00:25:51.185 *ERROR* [0:0:0:0:0:0:0:1 [1397805951183] POST /bin/feedServlet/ HTTP/1.1] org.apache.sling.servlets.post.impl.operations.ModifyOperation Unable to create resource named feedServlet in /bin
18.04.2014 00:25:51.185 *ERROR* [0:0:0:0:0:0:0:1 [1397805951183] POST /bin/feedServlet/ HTTP/1.1] org.apache.sling.servlets.post.impl.operations.ModifyOperation Exception during response processing. javax.jcr.nodetype.ConstraintViolationException: No child node definition for feedServlet found in node /bin
at org.apache.jackrabbit.core.NodeImpl.addNode(NodeImpl.java:1276)
at org.apache.jackrabbit.core.session.AddNodeOperation.perform(AddNodeOperation.java:111)
at org.apache.jackrabbit.core.session.AddNodeOperation.perform(AddNodeOperation.java:37)
at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91)
at org.apache.jackrabbit.core.NodeImpl.addNodeWithUuid(NodeImpl.java:1814)
at org.apache.jackrabbit.core.NodeImpl.addNode(NodeImpl.java:1766)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.create(JcrResourceProvider.java:439)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.create(ResourceResolverImpl.java:1076)
at org.apache.sling.servlets.post.impl.operations.AbstractCreateOperation.deepGetOrCreateNode(AbstractCreateOperation.java:530)
at org.apache.sling.servlets.post.impl.operations.AbstractCreateOperation.processCreate(AbstractCreateOperation.java:104)
at org.apache.sling.servlets.post.impl.operations.ModifyOperation.doRun(ModifyOperation.java:91)
at org.apache.sling.servlets.post.AbstractPostOperation.run(AbstractPostOperation.java:92)
at org.apache.sling.servlets.post.impl.SlingPostServlet.doPost(SlingPostServlet.java:202)
at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsServlet.java:148)
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:508)
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:146)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.java:356)
at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:168)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:254)
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.AuthoringUIModeServiceImpl.doFilter(AuthoringUIModeServiceImpl.java:301)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
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:290)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:64)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.foundation.forms.impl.FormsHandlingServlet.doFilter(FormsHandlingServlet.java:221)
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 com.adobe.granite.optout.impl.OptOutFilter.doFilter(OptOutFilter.java:74)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:90)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.adobe.cq.history.impl.HistoryRequestFilter.doFilter(HistoryRequestFilter.java:107)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.designimporter.CanvasPageDeleteRequestFilter.doFilter(CanvasPageDeleteRequestFilter.java:88)
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.i18n.impl.I18NFilter.doFilter(I18NFilter.java:127)
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:151)
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:127)
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:263)
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.sslfilter.internal.SslFilter.doFilter(SslFilter.java:55)
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 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:321)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:340)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:383)
at com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:335)
at com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:644)
at java.lang.Thread.run(Unknown Source)
Caused by: javax.jcr.nodetype.ConstraintViolationException: no matching child node definition found for {}feedServlet
at org.apache.jackrabbit.core.nodetype.EffectiveNodeType.getApplicableChildNodeDef(EffectiveNodeType.java:744)
at org.apache.jackrabbit.core.NodeImpl.getApplicableChildNodeDefinition(NodeImpl.java:817)
at org.apache.
jackrabbit.core.NodeImpl.addNode(NodeImpl.java:1274)
... 98 more
答案 0 :(得分：6)
你的财产有问题。请参考sling docs以了解您设置的每个属性的作用。
应该使用属性sling.servlet.paths而不是sling.servlet.resourceTypes来提供servlet作为资源可访问的路径。
因此，根据您的要求，以下注释就足够了。
sling.servlet.methods - 对于servlet支持的请求方法。
sling.servlet.paths - 对于此servlet处理的请求路径。
@Component(immediate = true, metatype = false, label = "feedServlet")
@Service(Servlet.class)
@Properties(value = {
@org.apache.felix.scr.annotations.Property(name = "sling.servlet.methods", value = "POST"),
@org.apache.felix.scr.annotations.Property(name = "sling.servlet.paths", value ="/bin/feedServlet"))
})
public class FeedServlet extends SlingAllMethodsServlet {
private static final long serialVersionUID = -2139716879248038562L;
@Override
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServerException,
IOException {
String feed = "test test test";
response.getWriter().write(feed);
}
}