如何在CXF Out Fault Interceptor中将HTTP STATUS代码设置为500以外的其他代码？

Question

[我正在编写CXF OutFaultInterceptor以在Mule ESB版本3.8.1中实现SOAP Web服务时引发自定义SOAP错误消息

问题出在每个SOAP错误上，我从服务器获取HTTP状态代码500。对于错误的请求，我想根据错误类型（例如400）更改状态代码。

如何执行？

我已经尝试将MESSAGE.RESPONSE_CODE设置为400，并将PHASE设置为PRE_STREAM和MARSHAL。

但是它不起作用。下面是示例代码：

public class SampleCxfFaultInterceptor extends AbstractSoapInterceptor {

    private static final Logger LOGGER = LoggerFactory.getLogger(EservicesCxfFaultInterceptor.class);

    public SampleCxfFaultInterceptor() {
        super(Phase.PRE_STREAM);
    }

    public void handleMessage(SoapMessage soapMessage) throws Fault {

        Fault fault = (Fault) soapMessage.getContent(Exception.class);

        if (fault.getCause() instanceof org.mule.api.transformer.TransformerMessagingException) {

                LOGGER.error("INTERNAL ERROR OCCURED WHILE PROCESSING REQUEST);
                soapMessage.remove(Message.RESPONSE_CODE);
                soapMessage.put(Message.RESPONSE_CODE,new Integer(400));
                Element detail = fault.getOrCreateDetail();
                Element errorDetail = detail.getOwnerDocument().createElement("errorDetail");
                Element errorCode = errorDetail.getOwnerDocument().createElement("errorCode");
                Element message = errorDetail.getOwnerDocument().createElement("message");
                errorCode.setTextContent("500");
                message.setTextContent("INTERNAL_ERROR");
                errorDetail.appendChild(errorCode);
                errorDetail.appendChild(message);
                detail.appendChild(errorDetail);                

        }

    }

    private Throwable getOriginalCause(Throwable t) {
        if (t instanceof ComponentException && t.getCause() != null) {
            return t.getCause();
        } else {
            return t;
        }
    }

预期结果将得到HTTP状态代码为400。

但是我得到的是这样的东西：HTTP / 1.1 500

Answer 1

确保也重写handleFault方法并直接在HttpServletResponse对象上设置状态：

import javax.servlet.http.HttpServletResponse;

import org.apache.cxf.binding.soap.SoapMessage;
import org.apache.cxf.binding.soap.interceptor.AbstractSoapInterceptor;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.transport.http.AbstractHTTPDestination;

public class SampleCxfFaultInterceptor extends AbstractSoapInterceptor
{
    ...

    public SampleCxfFaultInterceptor() {
        super(Phase.PRE_STREAM);
    }

    private void setHttpResponseStatus(final SoapMessage message, final int status)
    {
        // skip if inbound
        if (!MessageUtils.isOutbound(message))
        {
            return;
        }

        // outbound
        final Exchange exchange = message.getExchange();
        final Message outMessage = Optional.ofNullable(exchange.getOutMessage()).orElse(exchange.getOutFaultMessage());
        final HttpServletResponse httpResponse = (HttpServletResponse) outMessage.get(AbstractHTTPDestination.HTTP_RESPONSE);
        if (httpResponse != null)
        {
            httpResponse.setStatus(status);
        }
        /*
         * else this is likely SOAP over some non-HTTP transport protocol
         */
        /*
         * Prevent any further processing by other interceptors
         */
        message.getInterceptorChain().abort();

    }

    @Override
    public void handleMessage(final SoapMessage message) throws Fault
    {
        // example setting HTTP status to 400
        setHttpResponseStatus(message, 400);
    }

    @Override
    public void handleFault(final SoapMessage message)
    {
        // example setting HTTP status to 400
        setHttpResponseStatus(message, 400);
    }
}

已通过CXF 3.x API验证。