Java 处理自定义故障异常时如何获取SOAP故障的故障代码
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How to get SOAP fault's faultcode when handling custom fault exception
提问by Nikoloz
Our system consumes SOAP Web Service, using JAX-WS client stubs generated based on service's WSDL. In case of error server returns SOAP faults like this:
我们的系统使用基于服务的 WSDL 生成的 JAX-WS 客户端存根来使用 SOAP Web 服务。如果出现错误服务器会返回这样的 SOAP 错误：
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Header />
<s:Body>
<s:Fault>
<faultcode>SomeErrorCode</faultcode>
<faultstring xml:lang="en-US">Some error message</faultstring>
<detail>
<ApiFault xmlns="http://somenamespace.com/v1.0" xmlns:a="http://somenamespace.com/v1.0" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<a:RequestId>123456789</a:RequestId>
<a:CanRetry>true</a:CanRetry>
</ApiFault>
</detail>
</s:Fault>
</s:Body>
Based on WSDL SomeCustomFaultexception class is generated and all service methods are declared to throw this (see below) exception.
基于 WSDLSomeCustomFault生成异常类并声明所有服务方法以抛出此（见下文）异常。
@WebFault(name = "ApiFault", targetNamespace = "http://services.altasoft.ge/orders/v1.0")
public class SomeCustomFault
extends Exception
{
private ApiFault faultInfo;
public SomeCustomFault(String message, ApiFault faultInfo) {
super(message);
this.faultInfo = faultInfo;
}
public SomeCustomFault(String message, ApiFault faultInfo, Throwable cause) {
super(message, cause);
this.faultInfo = faultInfo;
}
public ApiFault getFaultInfo() {
return faultInfo;
}
}
As you can see this custom fault exception extends Exceptionand not SOAPFaultException. Hovewer I need to get SOAP fault's faultcode which could be retrieved only from SOAPFaultExceptionusing getFaultCodemethod. Could you tell me how can I reach SOAPFaultExceptionor SOAP fault's faultcode in place where I catch above mentioned custom fault exception?
正如您所看到的，这个自定义错误异常是 extendsException而不是SOAPFaultException。但是，我需要获取 SOAP 故障的故障代码，该代码只能使用getFaultCode方法从SOAPFaultException 中检索。您能告诉我如何在捕获上述自定义故障异常的地方到达SOAPFaultException或 SOAP 故障的故障代码吗？
采纳答案by Scott Heaberlin
You could implement a JAX-WS handlerand add it to your client web service reference. This will be given opportunity to handle the request message and response message OR notified of a fault.
您可以实现 JAX-WS处理程序并将其添加到您的客户端 Web 服务引用中。这将有机会处理请求消息和响应消息或通知的故障。
Create a SOAPHandler<SOAPMessageContext>and your handleFault()method will be passed the SOAPMessageContext. From that you can getMessage().getSOAPBody().getFault()to get the SOAPFault, which contains getFaultCode()and getDetail().
创建一个SOAPHandler<SOAPMessageContext>，您的handleFault()方法将通过SOAPMessageContext. 从中你可以getMessage().getSOAPBody().getFault()得到SOAPFault, 其中包含getFaultCode()和getDetail()。
Assign your new fault handler to your web service ref. One way is via @HandlerChain. It will be invoked prior to your catchclause.
将您的新故障处理程序分配给您的 Web 服务引用。一种方式是通过@HandlerChain。它将在您的catch条款之前被调用。
