xml报错，请帮忙，在线等！！！！

Java code

String str ="<root><row id=123><RelySubType >SUN</RelySubType></row></root>";
Document dom = DocumentHelper.parseText(str);
Element root = dom.getRootElement();
Iterator i= root.elementIterator("row");
while(i.hasNext()){
    Element foo= (Element)i.next();
    String str1 = foo.attributeValue("id") ;
    System.out.println(str1);
            }

用的 DOM4J。
报错 Open quote is expected for attribute "id" associated with an element type "row". Nested exception: Open quote is expected for attribute "id" associated with an element type "row".

------解决方案--------------------
String str ="<root><row id=\"123\"><RelySubType >SUN</RelySubType></row></root>";
这样试一下