xml文件：
<?xml version="1.0" encoding="utf-8"?>
<root>
<child ID="1"> old </child>
<child ID="2"> old </child>
</root>
--------------------------------------------
我要在child的ID="1"和ID="2"之间插入节点怎么插入？插入后的效果如下：
<?xml version="1.0" encoding="utf-8"?>
<root>
<child ID="1"> old </child>
<child ID="3"> new </child> -->这是新插入的的节点
<child ID="2"> old </child>
</root>
----------------------------------------------------
我用的是DOM4J的jar包 ,请高手指教.
呼呼，有没有发错位置，这里有人能解决吧？
API你看过了吗？
SAXReader reader = new SAXReader();
Document doc = reader.read("conf/student.xml");
Element root = doc.getRootElement();
Element zhangsanNode = (Element) root.selectSingleNode(path);
Element cloneE = (Element) zhangsanNode.clone();
cloneE.element("age").setText(Integer.parseInt(cloneE.elementText("age"))+1+"");
Element parent = zhangsanNode.getParent();
parent.elements().add(2, cloneE);
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 52 in the jsp file: /vip_info.jsp
ÕË cannot be resolved
49: <table border="1& ......
