我正在尝试使用MTOM + XOP在Spring Web Service中返回byte [],但是在编组结果时会抛出SAXParseException和消息:
cvc-type.3.1.2:元素“ dataHandler”是简单类型,因此它必须没有元素信息项[children]。
似乎在编写XOP标记之后,验证器将与它会面,而不是它所期望的byte []内容,并抛出具有FATAL级别的SAXParseException来停止该过程。
我正在使用:
JDK 1.7
SAAJ 1.3
SOAP 1.1
春季4.1.4。发布
Spring WS 2.2.0.RELEASE
提前致谢
最佳答案
我发现了两种针对我的情况的解决方法:
没有将xmlschema设置为marshaller。
将ValidationEventHandler
设置为编组以跳过XOP失败。
这是将ValidationEventHandler
设置为编组以跳过XOP失败的示例:
抽象超类:
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
abstract class XopAwareValidationEventHandler implements ValidationEventHandler {
private static final String CVC_TYPE_3_1_2 = "cvc-type.3.1.2";
private ValidationEventHandler realHandler;
XopAwareValidationEventHandler(final ValidationEventHandler handler) {
this.setRealHandler(handler);
}
@Override
public boolean handleEvent(final ValidationEvent event) {
final boolean result = this.getRealHandler().handleEvent(event);
if (!result) {
if (event.getMessage() != null && event.getMessage().startsWith(CVC_TYPE_3_1_2)) {
return this.isXopEvent(event);
}
}
return result;
}
abstract boolean isXopEvent(ValidationEvent validationEvent);
private ValidationEventHandler getRealHandler() {
return realHandler;
}
private void setRealHandler(final ValidationEventHandler realHandler) {
this.realHandler = realHandler;
}
}
解组器的具体类:
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
class XopAwareUnmarshallingValidationEventHandler extends XopAwareValidationEventHandler {
private static final String XOP_INCLUDE = "xop:Include";
XopAwareUnmarshallingValidationEventHandler(final ValidationEventHandler handler) {
super(handler);
}
@Override
boolean isXopEvent(final ValidationEvent validationEvent) {
final ValidationEventLocator locator = validationEvent.getLocator();
return locator != null && locator.getNode() != null &&
locator.getNode().getFirstChild() != null &&
XOP_INCLUDE.equals(locator.getNode().getFirstChild().getNodeName());
}
}
对于Marshaller,我正在搜索可识别情况的条件,因为
ValidationEventLocator
仅设置了Object,并且可以是任何东西。import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
import javax.xml.bind.ValidationEventLocator;
public class XopAwareMarshallingValidationEventHandler extends XopAwareValidationEventHandler {
public XopAwareMarshallingValidationEventHandler(final ValidationEventHandler handler) {
super(handler);
}
boolean isXopEvent(final ValidationEvent validationEvent) {
final ValidationEventLocator locator = validationEvent.getLocator();
return locator != null && locator.getNode() == null;
}
}
org.springframework.oxm.jaxb.Jaxb2Marshaller
子类可激活MTOM并添加两个事件处理程序:import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import XopAwareMarshallingValidationEventHandler;
import XopAwareUnmarshallingValidationEventHandler;
public class XopAwareJaxb2Marshaller extends Jaxb2Marshaller {
public XopAwareJaxb2Marshaller() {
this.setMtomEnabled(true);
}
protected void initJaxbMarshaller(final Marshaller marshaller) throws JAXBException {
super.initJaxbMarshaller(marshaller);
marshaller.setEventHandler(new XopAwareMarshallingValidationEventHandler(marshaller.getEventHandler()));
}
protected void initJaxbUnmarshaller(final Unmarshaller unmarshaller) throws JAXBException {
super.initJaxbUnmarshaller(unmarshaller);
unmarshaller.setEventHandler(new XopAwareUnmarshallingValidationEventHandler(unmarshaller
.getEventHandler()));
}
}