dom4j解析xml字符串

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最新推荐文章于 2025-04-04 21:52:48 发布

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分类专栏： Servlet/Jsp Struts2 工具 JavaSE XML/DTD/XSL 文章标签： dom4j解析xml字符串

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本文介绍使用DOM4j库解析XML字符串的方法，并演示如何将解析结果转换为Map及对象集合的过程。通过具体示例代码展示了从XML中提取特定元素的详细步骤。

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package com.smsServer.Dhst;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import com.common.object.SmsSendResponseObject;
/**
* @description 解析xml字符串
*/
public class Test{
public void readStringXml(Stringxml) {
Document doc = null;
try {
// 读取并解析XML文档
// SAXReader就是一个管道，用一个流的方式，把xml文件读出来
// SAXReader reader = new SAXReader(); //User.hbm.xml表示你要解析的xml文档
// Document document = reader.read(new File("User.hbm.xml"));
// 下面的是通过解析xml字符串的
doc = DocumentHelper.parseText(xml);// 将字符串转为XML
Element rootElt = doc.getRootElement();// 获取根节点
System.out.println("根节点："+ rootElt.getName());// 拿到根节点的名称
Iterator iter = rootElt.elementIterator("head");// 获取根节点下的子节点head
// 遍历head节点
while (iter.hasNext()){
Element recordEle = (Element) iter.next();
String title = recordEle.elementTextTrim("title");// 拿到head节点下的子节点title值
System.out.println("title:"+ title);
Iterator iters = recordEle.elementIterator("script");// 获取子节点head下的子节点script
// 遍历Header节点下的Response节点
while (iters.hasNext()){
Element itemEle = (Element) iters.next();
String username = itemEle.elementTextTrim("username");// 拿到head下的子节点script下的字节点username的值
String password = itemEle.elementTextTrim("password");
System.out.println("username:"+ username);
System.out.println("password:"+ password);
}
}
Iterator iterss = rootElt.elementIterator("body");///获取根节点下的子节点body
// 遍历body节点
while (iterss.hasNext()){
Element recordEless = (Element) iterss.next();
String result = recordEless.elementTextTrim("result");// 拿到body节点下的子节点result值
System.out.println("result:"+ result);
Iterator itersElIterator = recordEless.elementIterator("form");// 获取子节点body下的子节点form
// 遍历Header节点下的Response节点
while (itersElIterator.hasNext()){
Element itemEle = (Element) itersElIterator.next();
String banlce = itemEle.elementTextTrim("banlce");// 拿到body下的子节点form下的字节点banlce的值
String subID = itemEle.elementTextTrim("subID");
System.out.println("banlce:"+ banlce);
System.out.println("subID:"+ subID);
}
}
} catch(DocumentException e){
e.printStackTrace();
} catch(Exception e){
e.printStackTrace();
}
}
/**
* @description 将xml字符串转换成map
* @param xml
* @return Map
*/
public staticMap readStringXmlOut(Stringxml) {
Map map= new HashMap();
Document doc = null;
try {
doc = DocumentHelper.parseText(xml);// 将字符串转为XML
Element rootElt = doc.getRootElement();// 获取根节点
System.out.println("根节点："+ rootElt.getName());// 拿到根节点的名称
Iterator iter = rootElt.elementIterator("head");// 获取根节点下的子节点head
// 遍历head节点
while (iter.hasNext()){
Element recordEle = (Element) iter.next();
String title = recordEle.elementTextTrim("title");// 拿到head节点下的子节点title值
System.out.println("title:"+ title);
map.put("title", title);
Iterator iters = recordEle.elementIterator("script");// 获取子节点head下的子节点script
// 遍历Header节点下的Response节点
while (iters.hasNext()){
Element itemEle = (Element) iters.next();
String username = itemEle.elementTextTrim("username");// 拿到head下的子节点script下的字节点username的值
String password = itemEle.elementTextTrim("password");
System.out.println("username:"+ username);
System.out.println("password:"+ password);
map.put("username", username);
map.put("password", password);
}
}
Iterator iterss = rootElt.elementIterator("body");///获取根节点下的子节点body
// 遍历body节点
while (iterss.hasNext()){
Element recordEless = (Element) iterss.next();
String result = recordEless.elementTextTrim("result");// 拿到body节点下的子节点result值
System.out.println("result:"+ result);
Iterator itersElIterator = recordEless.elementIterator("form");// 获取子节点body下的子节点form
// 遍历Header节点下的Response节点
while (itersElIterator.hasNext()){
Element itemEle = (Element) itersElIterator.next();
String banlce = itemEle.elementTextTrim("banlce");// 拿到body下的子节点form下的字节点banlce的值
String subID = itemEle.elementTextTrim("subID");
System.out.println("banlce:"+ banlce);
System.out.println("subID:"+ subID);
map.put("result",result);
map.put("banlce", banlce);
map.put("subID", subID);
}
}
} catch(DocumentException e){
e.printStackTrace();
} catch(Exception e){
e.printStackTrace();
}
return map;
}
public staticvoid parse(Stringxml)
{
Document doc = null;
try {
doc = DocumentHelper.parseText(xml);// 将字符串转为XML
Element rootElt = doc.getRootElement();// 获取根节点smsReport
Iterator iters = rootElt.elementIterator("sendResp");// 获取根节点下的子节点sms
while (iters.hasNext()){
Element recordEle1 = (Element) iters.next();
Iterator iter = recordEle1.elementIterator("sms");
int i=0;
// 遍历sms节点
while (iter.hasNext()){
Element recordEle = (Element) iter.next();
SmsSendResponseObject r =new SmsSendResponseObject();
String phone = recordEle.elementTextTrim("phone");// 拿到sms节点下的子节点stat值
String smsID = recordEle.elementTextTrim("smsID");// 拿到sms节点下的子节点stat值
System.out.println(phone+"==="+smsID);
}
}
} catch(DocumentException e){
e.printStackTrace();
} catch(Exception e){
e.printStackTrace();
}
}
public staticvoid main(String[] args){
// 下面是需要解析的xml字符串例子
String xmlString = "<html>" + "<head>" + "<title>dom4j解析一个例子</title>"
+ "<script>" + "<username>yangrong</username>"
+ "<password>123456</password>" + "</script>" + "</head>"
+ "<body>" + "<result>0</result>" + "<form>"
+ "<banlce>1000</banlce>" + "<subID>36242519880716</subID>"
+ "</form>" + "</body>" + "</html>";
/*
* Test2 test = new Test2(); test.readStringXml(xmlString);
*/
Map map= readStringXmlOut(xmlString);
Iterator iters = map.keySet().iterator();
while (iters.hasNext()){
String key = iters.next().toString();// 拿到键
String val = map.get(key).toString();// 拿到值
System.out.println(key+ "=" + val);
}
String xml="<batchSendResp><sendResp><sms><phone>137000000</phone><smsID>ff8080813349da9001334f0eed8c5923</smsID></sms></sendResp><sendResp><sms><phone>187000000</phone><smsID>ff8080813349da9001334f0eee045924</smsID></sms></sendResp></batchSendResp>";
parse(xml);
}
}

运行之后的结果会是：

根节点：html
title:dom4j解析一个例子
username:yangrong
password:123456
result:0
banlce:1000
subID:36242519880716
result=0
username=yangrong
title=dom4j解析一个例子
subID=36242519880716
banlce=1000
password=123456
137000000===ff8080813349da9001334f0eed8c5923
187000000===ff8080813349da9001334f0eee045924