dom4j增删查改操作.docx

使用DOM4J对XML文件操作-添加、修改、删除、获取元素节点/*** XML文件操作封装类:添加元素、修改元素、删除元素、获取某个元素的值*/packagecom.inspur.plat.platcore.core;importjava.io.File;import java.io.FileWriter;import java.util.Iterator;import java.util.List;import org.dom4j.Attribute;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.SAXReader;import org.dom4j.io.XMLWriter;public class XmlOperator {private Document document;private String filePath; //文件所在的实际物理路径private WriteLogwritelog;public static void main(String[] args) {?? String filepath = System.getProperty(user.dir)+/XmlFiles/LocalServicesConfig.xml;?? XmlOperator operator = new XmlOperator(filepath);?? operator.getXmlFile();?? //operator.addChild(item, t1,services2, );?? //operator.updateChild(item, t1, services2, bb);?? //operator.deleteChild(item, t1, services2);?? String str = operator.getChild(item, t3, protocol);?? System.out.println(str);}public XmlOperator(String filepath){?? this.document = null;?? this.filePath = filepath;?? writelog = new WriteLog();}/**?* 创建XML文件* @paramrootName:根节点名称*/public void createXMLFile(String rootName) {?? if(!fileExist()){??? this.document = DocumentHelper.createDocument();??? this.document.addElement(rootName);??? saveXMLFile(this.document);?? }}/*** 获取已存在的XML文档* @return*/public Document getXmlFile() {?? if (fileExist()) {??? SAXReader reader = new SAXReader();???? try {???? this.document = reader.read(new File(filePath));??? } catch (DocumentException e) {???? String loginfo = StackTraceToString.getExceptionTrace(e);???? writelog.writeLogToEnd(LocalServerManager, loginfo);??? }finally{???? reader = null;??? }?? } else {??? //写日志??? String loginfo = XML file does not exist,read error!;??? writelog.writeLogToEnd(LocalServerManager,loginfo);??? System.exit(0);?? }?? return this.document;}/*** 添加元素* @paramfatherPath:父节点名称* @paramfatherattr:父节点属性* @paramchildName：要添加的节点名称* @paramchildValue：要添加的节点值*/public void