Dom4j操作xml文件
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2022-05-28 20:27:58
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package com.test.xml;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
import org.dom4j.tree.DefaultDocument;
public class BuildXml {
public static void main(String[] args) {
BuildXml xml=new BuildXml();
String fileName="xml/bu.xml";
String[] itemName = { "航空加油站", "纪检中心", "油库中心", "其他" };
String[] sheehCod = { "1.1.1", "1.1.2", "1.1.3" };
xml.TestXml(fileName,itemName,sheehCod);
}
public void TestXml(String fileName, String[] itemName, String[] sheehCod){
//建立doc对象
Document doc=DocumentHelper.createDocument();
//建立xml文档的Record根对象
Element recordElement=doc.addElement("Record");
//为Record根建立一个Head节点
Element headElement=recordElement.addElement("Head");
//为Record根建立一个body节点
Element bodyElement=recordElement.addElement("Body");
//为Head节点添加一些子节点
Element codEl=headElement.addElement("Cod");
codEl.setText("1");
Element recEl=headElement.addElement("Recitified");
recEl.setText("是");
/** 叶子节点编号*/
addParamList(bodyElement, sheehCod, itemName);
//格式化输出xml文档，并解决中文问题
try {
FileWriter fileWriter=new FileWriter(fileName);
//设置文件编码格式
//OutputFormat.createPrettyPrint();设置了创建xml文件的格式为缩进的
OutputFormat xmlFormat=OutputFormat.createPrettyPrint();
//这里不知道为什么设置编码格式为utf-8就会出现xml里没有中文显示 ,谁知道请说下.谢谢
xmlFormat.setEncoding("gbk");
//创建写文件方法
XMLWriter xmlWriter = new XMLWriter(fileWriter,xmlFormat);
//写入文件
xmlWriter.write(doc);
//关闭
xmlWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void addParamList(Element bodyEl, String[] sheehCod,
String[] itemName) {
/**有多少个子节点就产生多少个对象*/
for (int i = 0; i < sheehCod.length; i++) {
Element paramListEl = bodyEl.addElement("ParamList");
Element sheehEl = paramListEl.addElement("SheehCod");
sheehEl.setText(sheehCod[i]);
//调用方法
addItem(itemName, paramListEl);
}
}
private void addItem(String[] itemName, Element paramListEl) {
Element paramEl = paramListEl.addElement("Param");
for (int i = 0; i < itemName.length; i++) {
Element itemNameEl = paramEl.addElement("ItemName");
itemNameEl.setText(itemName[i]);
if (i < itemName.length - 1) {
paramEl = paramListEl.addElement("Param");
}
}
}
}
//代码运行产生XML文档如下：
<?xml version="1.0" encoding="gbk"?>
<Record>
<Head>
<Cod>1</Cod>
<Recitified>是</Recitified>
</Head>
<Body>
<ParamList>
<SheehCod>1.1.1</SheehCod>
<Param>
<ItemName>航空加油站</ItemName>
</Param>
<Param>
<ItemName>纪检中心</ItemName>
</Param>
<Param>
<ItemName>油库中心</ItemName>
</Param>
<Param>
<ItemName>其他</ItemName>
</Param>
</ParamList>
<ParamList>
<SheehCod>1.1.2</SheehCod>
<Param>
<ItemName>航空加油站</ItemName>
</Param>
<Param>
<ItemName>纪检中心</ItemName>
</Param>
<Param>
<ItemName>油库中心</ItemName>
</Param>
<Param>
<ItemName>其他</ItemName>
</Param>
</ParamList>
<ParamList>
<SheehCod>1.1.3</SheehCod>
<Param>
<ItemName>航空加油站</ItemName>
</Param>
<Param>
<ItemName>纪检中心</ItemName>
</Param>
<Param>
<ItemName>油库中心</ItemName>
</Param>
<Param>
<ItemName>其他</ItemName>
</Param>
</ParamList>
</Body>
</Record>
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