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。
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()));
  }
}

09-05 05:25