Spring WS: How to get and save XSD validation erro

问题:

I use SpringWS for my soap service and validate it like this;

 <sws:interceptors>
    <bean id="payloadValidatingInterceptor" class="org.springframework.ws.soap.server.endpoint.interceptor.PayloadValidatingInterceptor">
        <property name="schema" value="/schemas/my.xsd"/>
        <property name="validateRequest" value="false"/>
        <property name="validateResponse" value="true"/>
    </bean>

@PayloadRoot(namespace = NAMESPACE,  localPart = "ServiceProvider")
@ResponsePayload
public ServiceProviderTxn getAccountDetails(@RequestPayload ServiceProviderrequest)
{ ...}

This works fine but when there is an error it returns a spring generated error response before it reaches to the endpoint, so I never have a chance to process them. But I want to be able to log and save the full error message to database. One way I found out is to do something like this in my other question;

Spring WS How to get all error messages when validation fails

But it does not work as I want.

回答1:

you can extend PayloadValidationInterceptor and redefine the method

protected boolean handleRequestValidationErrors(MessageContext messageContext, SAXParseException[] errors)

If you look at the standard implementation (available here) you can see how it dumps all the parsing errors; you can also dump the incoming message since you have access to messageContext and its getRequest() method. Your class xould be something like

public class PayloadValidationgInterceptorCustom extends
PayloadValidatingInterceptor {

@Override
protected boolean handleRequestValidationErrors(MessageContext messageContext, SAXParseException[] errors)
        throws TransformerException {
    messageContext.getRequest().writeTo(/*place your Outputstream here something like a ByteArrayOutputStream*/); //use this if you want to dump the message
    for (SAXParseException error : errors) {
        //dump the each error on the db o collect the stack traces in a single string and dump only one or to the database
       /*you can use something like this
         StringWriter sw = new StringWriter();
         PrintWriter pw = new PrintWriter(sw);
         error.printStackTrace(pw);
         sw.toString();
         to get the stack trace
        */

    }
    return super.handleRequestValidationErrors(messageContext,errors);

}