java dom4j封装和解析XML

package org.scbit.lsbi.scp.utils;

import java.util.ArrayList;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.scbit.lsbi.scp.utils.enums.TemplateDeviceEnum;
import org.scbit.lsbi.scp.vo.TemplateDeviceFormVo;
import org.scbit.lsbi.scp.vo.TemplateDeviceVo;

public class CurrentXMLUtil {

	// 封装数据到XML
	public static String createXML(TemplateDeviceFormVo templateDeviceFormVo) {
		List<TemplateDeviceVo> templateDeviceVo = templateDeviceFormVo.getTemplateDeviceVos();
		Document doc = DocumentHelper.createDocument();
		doc.setXMLEncoding("UTF-8");
		Element root = doc.addElement("custom");
		for (int i = 0; i < templateDeviceVo.size(); i++) {
			Element iterm = root.addElement("iterm");
			iterm.addAttribute("filed", templateDeviceVo.get(i).getParamId());
			iterm.addElement("name").setText(templateDeviceVo.get(i).getFiledName());
			iterm.addElement("code")
					.setText(ChineseInitials.getPinYinHeadChar(templateDeviceVo.get(i).getFiledName(), 1));
			String typ = TemplateDeviceEnum.getCnName(templateDeviceVo.get(i).getType());
			Element type = iterm.addElement("type").addAttribute("value", typ);
			if ("radio".equals(templateDeviceVo.get(i).getType())
					|| "select".equals(templateDeviceVo.get(i).getType())) {
				if (templateDeviceVo.get(i).getOptions() != null)
					for (int j = 0; j < templateDeviceVo.get(i).getOptions().size(); j++) {
						type.addElement("option").setText(templateDeviceVo.get(i).getOptions().get(j));
					}
				if (StringUtil.hasText(templateDeviceVo.get(i).getSelect())) {
					iterm.addElement("normalValue").setText(templateDeviceVo.get(i).getOptions()
							.get(Integer.parseInt(templateDeviceVo.get(i).getSelect().length() + "") - 2));
				}
			}
			if ("number".equals(templateDeviceVo.get(i).getType())
					&& StringUtil.hasText(templateDeviceVo.get(i).getLocalUnit())
					&& !StringUtil.hasText(templateDeviceVo.get(i).getMaxNum())) {
				iterm.addElement("meunit").setText(templateDeviceVo.get(i).getLocalUnit());
				iterm.addElement("number").setText(templateDeviceVo.get(i).getSignVal());
				iterm.addElement("sign").setText(templateDeviceVo.get(i).getSign());// templateDeviceVo.get(i).getSign();
			}
			if ("number_value".equals(templateDeviceVo.get(i).getType())
					&& StringUtil.hasText(templateDeviceVo.get(i).getMaxNum())
					&& StringUtil.hasText(templateDeviceVo.get(i).getRangeUnit())) {
				iterm.addElement("meunit").setText(templateDeviceVo.get(i).getRangeUnit());
				iterm.addElement("min").setText(templateDeviceVo.get(i).getMinNum());
				iterm.addElement("max").setText(templateDeviceVo.get(i).getMaxNum());
			}
			if ("yin_yang".equals(templateDeviceVo.get(i).getType())) {
				if (templateDeviceVo.get(i).getOptions() != null) {
					for (int j = 0; j < templateDeviceVo.get(i).getOptions().size(); j++) {
						type.addElement("option").setText(templateDeviceVo.get(i).getOptions().get(j));
					}
				}
				if (StringUtil.hasText(templateDeviceVo.get(i).getSelect())) {
					iterm.addElement("normalValue").setText(templateDeviceVo.get(i).getSelect());
				}
			}

		}
		return doc.asXML();

	}

	public static TemplateDeviceFormVo parseXML(String xml) {
		Document doc = null;
		Element root = null;
		TemplateDeviceFormVo templateDeviceFormVo = new TemplateDeviceFormVo();
		try {
			doc = DocumentHelper.parseText(xml);
			root = doc.getRootElement();
			List<Element> elements = root.elements();
			List<TemplateDeviceVo> templateDeviceVos = new ArrayList<>();
			for (int i = 0; i < elements.size(); i++) {
				TemplateDeviceVo templateDeviceVo = new TemplateDeviceVo();
				Element iterm = elements.get(i);
				String name = iterm.elementText("name");
				String code = iterm.elementText("code");
				String type = iterm.element("type").attribute("value").getText();
				String paramId = iterm.attribute("filed").getText();
				templateDeviceVo.setParamId(paramId);
				templateDeviceVo.setFiledName(name);
				templateDeviceVo.setCode(code);
				templateDeviceVo.setType(type);
				if (iterm.element("type").hasContent()) {
					List<Element> options = iterm.element("type").elements("option");
					List<String> ops = new ArrayList<>();
					for (Element option : options) {
						String opText = option.getText();
						ops.add(opText);
					}
					templateDeviceVo.setOptions(ops);

				}
				if (iterm.element("normalValue") != null) {
					templateDeviceVo.setSelect(iterm.element("normalValue").getText());
				}
				if (iterm.element("meunit") != null && iterm.element("max") == null) {
					templateDeviceVo.setLocalUnit(iterm.element("meunit").getText());
					templateDeviceVo.setSignVal(iterm.element("number").getText());
					templateDeviceVo.setSign(iterm.element("sign").getText());
				}
				if (iterm.element("meunit") != null && iterm.element("max") != null) {
					templateDeviceVo.setRangeUnit(iterm.element("meunit").getText());
					templateDeviceVo.setMinNum(iterm.element("min").getText());
					templateDeviceVo.setMaxNum(iterm.element("max").getText());
				}

				templateDeviceVos.add(templateDeviceVo);
			}
			templateDeviceFormVo.setTemplateDeviceVos(templateDeviceVos);

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

		return templateDeviceFormVo;
	}
}

　　maven包：

                <dependency>
			<groupId>dom4j</groupId>
			<artifactId>dom4j</artifactId>
			<version>1.6.1</version>
		</dependency>

　　XML示例：

 <?xml version="1.0" encoding="UTF-8"?>
 <custom>
     <iterm filed="">
         <name>白细胞数</name>
         <code>bxb</code>
         <type value="数字"></type>
         <meunit>个</meunit>
         <min>4</min>
         <max>10</max>
     </iterm>
     <iterm filed="">
         <name>白细胞数</name>
         <code>bxb</code>
         <type value="数字"></type>
         <meunit>个</meunit>
         <number>20</number>
     </iterm>
     <iterm filed="">
         <name>细菌阴阳性</name>
         <code>zc</code>
         <type value="单选框">
             <option >阴</option>
             <option>阳</option>
         </type>
         <required>false</required>
         <normalValue>阴</normalValue>
     </iterm>
     <iterm filed="">
         <name>照片</name>
         <code>tp</code>
         <type value="图片"></type>
         <required>false</required>
     </iterm>
     <iterm filed="">
         <name>描述</name>
         <code>ms</code>
         <type value="文本框"></type>
         <required>false</required>
     </iterm>
 </custom>