XML文档的解析

使用DOM4J读取XML文档信息
1.导入DOM4J的jar包
2.指定要解析的XML文件
3.把XML文件转化成Document对象
4.获取节点属性或者文本的值


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public class Dom4ReadExmple{
public void iterateWholeXML(String filename,HashMap<String,String> hm){
SAXReader saxReader = new SAXReader()
try{
Document document = saxReader.read(new File(filename));
Element root = document.getRootElement();
int num =-1
//遍历根元素（students)
for (Iterator iter = root.elementIterator();iter.hasNemt()😉{
Element element = (Element)iter.next();
num++;
//获取person节点的name属性的值
Attribute attr = element.attribute("age“)
if(attr !=null){
String name = name.getValue();
if(name != null ){
hm.put(element.getName());
}
/*遍历student节点的所有子节点
for（Iterator iterInner = element.elementIterator();iterInner.hasNext()😉{
Element elementInner = (Element)iterInner.next();
i
}
}
}

}catch(DocumentException e){
e.printStackTrace()
}

}

}