dom4j解析xml入门

首先要导入dom4j的jar包

代码:

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;


public class dom4jDemo {
	public static void main(String[] args) {
		String xml =
			"<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:web=\"http://www.seecom.com.cn/webservice\">" +
			"   <soapenv:Header/>" + "   <soapenv:Body>" +
			"      <web:getChargeRequest>" + "         <web:charge>" +
			"            <web:channel>205</web:channel>" +
			"            <web:pwd>fea1920da4045adeafda10bcd47f3c9f</web:pwd>" +
			"            <web:orderNo>446666</web:orderNo>" +
			"            <web:phone>13280009999</web:phone>" +
			"            <web:money>12</web:money>" + "         </web:charge>" +
			"      </web:getChargeRequest>" + "   </soapenv:Body>" +
			"</soapenv:Envelope>";
		Map<String, String> map = readXmlToMap(xml);

		for (String key : map.keySet()) {
			System.out.println(key + "=" + map.get(key));
		}
	}

	/**
     * @功能描述：    解析提交结果
     *
     * @param xml
     * @return
     *
     * @作者：zhangpj        @创建时间：2018年4月14日
     */
	public static Map<String, String> readXmlToMap(String xml) {
		Document doc = null;
		Map<String, String> resultMap = new HashMap<String, String>();

		try {
			doc = DocumentHelper.parseText(xml); // 将字符串转为XML

			Element rootElt = doc.getRootElement(); // 获取根节点

			Element bodyElement = rootElt.element("Body");
			Element getChargeResponseElement = bodyElement.element(
				"getChargeRequest");
			Element chargeElement = getChargeResponseElement.element("charge");

			try {
				// 方式一,直接获取
				//              String channel=chargeElement.elementTextTrim("channel"); 
				//              String pwd=chargeElement.elementTextTrim("pwd");
				//              String orderNo=chargeElement.elementTextTrim("orderNo");
				//              String phone=chargeElement.elementTextTrim("phone");
				//              String money=chargeElement.elementTextTrim("money");
				//                    
				//              resultMap.put("channel", channel);
				//              resultMap.put("pwd", pwd);
				//              resultMap.put("orderNo", orderNo);
				//              resultMap.put("phone", phone);
				//              resultMap.put("money", money);

				// 方式二,迭代器获取  
				Iterator<Element> it = chargeElement.elementIterator();

				// 遍历  
				while (it.hasNext()) {
					// 获取某个子节点对象  
					Element e = it.next();
					// 对子节点进行遍历  
					resultMap.put(e.getName(), e.getStringValue().trim());
				}
			} catch (Exception e) {
				e.printStackTrace();
				//发生异常以后设置为处理中
				resultMap.put("status", "underway");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}

		return resultMap;
	}
}