dom4j解析xml字符串实例

//先加入dom4j.jar包

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;

/**

* @description 解析xml字符串

* @author 无处不在

* @Time 上午11:01:31

*/

public class Test {

public void readStringXml(String xml) {

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 static Map readStringXmlOut(String xml) {

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 static void 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);

}

}

}