当我试图运行Java应用程序从ebay api查看项目时，我得到exp：

com.sun.xml.internal.ws.fault.ServerSOAPFaultException: Client received SOAP Fault from server: Authentication failed : Invalid Application:app key Please see the server log to find more detail regarding exact cause of the failure.

at com.sun.xml.internal.ws.fault.SOAP11Fault.getProtocolException(SOAP11Fault.java:178)

at com.sun.xml.internal.ws.fault.SOAPFaultBuilder.createException(SOAPFaultBuilder.java:124)

at com.sun.xml.internal.ws.client.sei.StubHandler.readResponse(StubHandler.java:238)

at com.sun.xml.internal.ws.db.DatabindingImpl.deserializeResponse(DatabindingImpl.java:189)

at com.sun.xml.internal.ws.db.DatabindingImpl.deserializeResponse(DatabindingImpl.java:276)

at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:104)

at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:77)

at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:147)

at com.sun.proxy.$Proxy36.findItemsByKeywords(Unknown Source)

at FindItem.main(FindItem.java:59)

我在教程中编写了2个 jar ，但仍然有这个问题，我从ebay web app键获取密钥 . 我的代码是：

ClientConfig config = new ClientConfig();

config.setApplicationId("MY app key that taken from ebay");

//create a service client

FindingServicePortType serviceClient = FindingServiceClientFactory.getServiceClient(config);

//create request object

FindItemsByKeywordsRequest request = new FindItemsByKeywordsRequest();

//set request parameters

request.setKeywords("harry potter phoenix");

PaginationInput pi = new PaginationInput();

pi.setEntriesPerPage(2);

request.setPaginationInput(pi);

//call service

FindItemsByKeywordsResponse result = serviceClient.findItemsByKeywords(request);

还有一个问题，我该如何获得该项目的规格？希望你能在这个问题上提供帮助 .