Encoding XML entities in string using Apache XMLBeans

I'd like to use Apache XMLBeans to escape a String for embedding it in an XML document, e.g. encode all XML entities.

XmlString does provide this functionality, but insists on wrapping the output in xml-fragment tags, which I'd like to get rid of.

Howe开发者_Python百科ver, I'm not interested in sugestions

• to use anything other than XMLBeans (like org.apache.commons.lang.StringEscapeUtils)
• to remove the enclosing tag after escaping (e.g. using a regex)

Here's a test case. Can you help me fix it?

import org.apache.xmlbeans.*;

public class Test {
  @Test public void test(){
    String input = "You & me";
    String expected = "You & me";
    String actual = escape(input);
    Assert.assertEquals(expected, actual);
    // Fails with: ComparisonFailure: expected:<[You &amp; me]> 
    //             but was:<[<xml-fragment>You &amp; me</xml-fragment>]>
  }

  private String escape(String str){
    XmlString value = XmlString.Factory.newInstance();
    value.setStringValue(input);
    XmlOptions opts = new XmlOptions();
    // do I need to set one of the 54 available options?
    // see http://xmlbeans.apache.org/docs/2.4.0/reference/org/apache/xmlbeans/XmlOptions.html
    return value.xmlText(opts);
  }
}

Use the setSaveOuter() option before passing the XmlOptions to the xmlText() method. Like this.

XmlOptions opts = new XmlOptions();
opts.setSaveOuter();
return value.xmlText(opts);

I would like to clarify that if you just create a new element out of thin air it seems like the element name will not be serialized. For example If I have a Model element that has a Property element on it the following will not display the property tag, it will display the xml fragment.

Property property = Property.Factory.newInstance(); 

XmlOptions opts = new XmlOptions();
opts.setSaveOuter();
return property.xmlText(opts);

To have the Property Element show up I must do the following.

ModelDocument modelDoc = ModelDocument.Factory.newInstance();
ModelType model = modelDoc.addNewModel();
PropertyType propertyType = model.addNewProperty();
Property property = Property.Factory.newInstance(); 

XmlOptions opts = new XmlOptions();
opts.setSaveOuter();
return property.xmlText(opts);

your expected string is incorrect. by virtue of calling xmlText, it will return an XML, hence the string must be wrapped in xml-fragment element.

create xml reader as a normal xml string then remove the xml-fragment, i have tried like this,

if(request != null && request.contains("<xml")){
XMLInputFactory xif = XMLInputFactory.newFactory();
StringReader reader = new StringReader(request);
StreamSource xml = new StreamSource(reader);
XMLStreamReader xsr = xif.createXMLStreamReader(xml);
xsr.nextTag();          
request = xsr.getElementText();
System.out.println("updated request is \n"+request);
}

then

JAXBContext jaxbContext = JAXBContext.newInstance(YourClass.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
StringReader reader = new StringReader(request);