在java中使用dom4j包对String格式的xm数据l解析

在网上找了好久，都没搞出来，借鉴别人的代码，依葫芦画瓢，写了个自己用的解析类。注意节点属性和子节点的区别就好了，这个包的方法还挺好用的

package com.allinpay.utils;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.tree.DefaultAttribute;

/**
* Java递归遍历XML所有元素
*
* @author 李许民
* @date 2017年1月16日15:01:14
*/
public class XMLparseUtil
{
//存储xml元素信息的容器
private static ArrayList<Leaf> elemList = new ArrayList<Leaf>();

/**
* 获取节点所有属性值
* <功能详细描述>
* @param element
* @return
* @see [类、类#方法、类#成员]
*/
public static Map<String, String> XMLparse(String xmlStr) {
XMLparseUtil xmLparseUtil = new XMLparseUtil();
Map<String, String> mapRerult = new HashMap<>();
Document doc = null;
try {
doc = DocumentHelper.parseText(xmlStr);
} catch (DocumentException e) {
e.printStackTrace();
}
// 获取XML根元素
Element root = doc.getRootElement();
xmLparseUtil.getElementList(root);
for (Leaf leaf : elemList) {
mapRerult.put(leaf.getElementName(), leaf.getValue());
}
return mapRerult;
}
/**
* 获取节点的属性
* @param element
* @return
*/
public String getNoteAttribute(Element element)
{
String xattribute = "";
DefaultAttribute e = null;
List<?> list = element.attributes();
for (int i = 0; i < list.size(); i++)
{
e = (DefaultAttribute)list.get(i);
xattribute += " [name = " + e.getName() + ", value = " + e.getText() + "]";
}
return xattribute;
}

/**
* 递归遍历方法
* <功能详细描述>
* @param element
* @see [类、类#方法、类#成员]
*/
public void getElementList(Element element)
{
List<?> elements = element.elements();
// 没有子元素
if (elements.isEmpty())
{
String xpath = element.getPath();
String value = element.getTextTrim();
elemList.add(new Leaf(getNoteAttribute(element),element.getName(), xpath, value));
}
else
{
// 有子元素
Iterator<?> it = elements.iterator();
while (it.hasNext())
{
Element elem = (Element)it.next();
// 递归遍历
getElementList(elem);
}
}
}
/**
* 解析测试
* @param args
* @throws DocumentException
*/
public static void main(String args[])
throws DocumentException
{
String testStr = "<?xml version='1.0' encoding='UTF-8'?>"
+ "<epay>"
+ "<retcode>0</retcode>"
+ "<sign_type>MD5</sign_type>"
+ "<service>query_order_service</service>"
+ "<service_version>1.0"
+ "</service_version>"
+ "<sign>82c9636fac495ceb0c378a36a6a43914</sign>"
+ "<input_charset>UTF-8</input_charset>"
+ "<fee_type>1</fee_type>"
+ "<attach>test</attach>"
+ "<bank_transno>123123123123123</bank_transno>"
+ "<out_trade_no>00000002</out_trade_no>"
+ "<total_fee>300</total_fee>"
+ "<product_fee>50</product_fee>"
+ "<transport_fee>50</transport_fee>"
+ "<discount>5.51</discount>"
+ "<reconciliation_state>false</reconciliation_state>"
+ "<time_end>20131005 17:10:49</time_end>"
+ "<trade_mode>0001</trade_mode>"
+ "<trade_state>0</trade_state>"
+ "<transaction_id>201310045</transaction_id>"
+ "</epay>";
Map<String, String> map = XMLparseUtil.XMLparse(testStr);
System.out.println(map);
}
}

/**
* xml节点数据结构
*/
class Leaf
{
// 节点属性
private String xattribute;
//节点名字
private String elementName;

// 节点PATH
private String xpath;

// 节点值
private String value;

public Leaf(String xattribute, String elementName , String xpath, String value)
{
this.xattribute = xattribute;
this.elementName=elementName;
this.xpath = xpath;
this.value = value;
}

public String getXpath()
{
return xpath;
}

public void setXpath(String xpath)
{
this.xpath = xpath;
}

public String getValue()
{
return value;
}

public void setValue(String value)
{
this.value = value;
}

public String getXattribute()
{
return xattribute;
}

public void setXattribute(String xattribute)
{
this.xattribute = xattribute;
}
public String getElementName() {
return elementName;
}

public void setElementName(String elementName) {
this.elementName = elementName;
}
}