JAVA DOM 生成xml文件

我就是我 2022-05-20 07:50 333阅读 0赞

# JAVA DOM 生成xml文件 #

### 代码贴上，已经全部注释 ###

package com.dom.parse;
    
    import java.io.File;
    
    import javax.xml.parsers.DocumentBuilderFactory;
    import javax.xml.parsers.ParserConfigurationException;
    import javax.xml.transform.OutputKeys;
    import javax.xml.transform.Transformer;
    import javax.xml.transform.TransformerException;
    import javax.xml.transform.TransformerFactory;
    import javax.xml.transform.dom.DOMSource;
    import javax.xml.transform.stream.StreamResult;
    import org.w3c.dom.Document;
    import org.w3c.dom.Element;
    
    public class CreateXMLTest { 
        public static void main(String[] args) throws ParserConfigurationException, TransformerException {
            //创建一个新的Documetn对象
            Document document =  DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();   
            //创建元素节点 JTree
        /* <?xml version="1.0" encoding="UTF-8"?> * <MAPS> <PUBLIC id="123"> <TRXCODE>86860</TRXCODE> <WORKDATE>20080408</WORKDATE> <WORKTIME>171030</WORKTIME> <ZONENO>01604</ZONENO> </PUBLIC> <PRIVATE name="hello"> <NAME>张三</NAME> <IDNO>371522196806170234</IDNO> <CARDNO>6222021602018802936</CARDNO> <AMOUNT>10000</AMOUNT> <PAYTYPE>10000</PAYTYPE> </PRIVATE> </MAPS>*/
            Element MAPS=  document.createElement("MAPS");//根元素
            Element PUBLIC=  document.createElement("PUBLIC");//创建根元素下的子元素PUBLIC
            Element TRXCODE=  document.createElement("TRXCODE");
            Element WORKDATE=  document.createElement("WORKDATE");
            Element WORKTIME=  document.createElement("WORKTIME");
            Element ZONENO=  document.createElement("ZONENO");
    
            Element PRIVATE=  document.createElement("PRIVATE");//创建根元素下的子元素PRIVATE
            Element NAME=  document.createElement("NAME");
            Element IDNO=  document.createElement("IDNO");
            Element CARDNO=  document.createElement("CARDNO");
            Element AMOUNT=  document.createElement("AMOUNT");
            Element PAYTYPE=  document.createElement("PAYTYPE");
            //建立元素和元素之间的父子关系
            document.appendChild(MAPS);//将MAPS做为根元素
            MAPS.appendChild(PUBLIC);
            MAPS.appendChild(PRIVATE);
            PUBLIC.appendChild(TRXCODE);
            PUBLIC.appendChild(WORKDATE);
            PUBLIC.appendChild(WORKTIME);
            PUBLIC.appendChild(ZONENO);
            //给元素添加属性 1 创建属性对象 2直接通过Element对象的setAttribute方法添加属性
            PUBLIC.setAttribute("id", "123");
            PUBLIC.setAttribute("KDA", "12.78");
            //getTextContent() setTextContext();
            //给元素添加文本内容
            TRXCODE.setTextContent("86860");
            WORKDATE.setTextContent("20080408");
            WORKTIME.setTextContent("171030");
            ZONENO.setTextContent("01604");
            //建立元素和元素之间的父子关系
            PRIVATE.appendChild(NAME);
            PRIVATE.appendChild(IDNO);
            PRIVATE.appendChild(CARDNO);
            PRIVATE.appendChild(AMOUNT);
            PRIVATE.appendChild(PAYTYPE);
            //给元素添加属性 
            //1 创建属性对象 
            //2直接通过Element对象的setAttribute方法添加属性
            PRIVATE.setAttribute("name", "hello");
            //给元素添加文本内容
            NAME.setTextContent("张三");
            IDNO.setTextContent("371522196806170234");
            CARDNO.setTextContent("6222021602018802936");
            AMOUNT.setTextContent("10000");
            PAYTYPE.setTextContent("10000");
            //<?xml version="1.0" encoding="utf-8"?> 创建XML文档声明部分
            document.setXmlVersion("1.0");
            //给文件转换器设置字符编码
            //trans.setOutputProperty("encoding", “GB2312");
            //定义文档转换器对象
            TransformerFactory tff = TransformerFactory.newInstance();
            Transformer trans = tff.newTransformer();//
            //设置输出属性
            trans.setOutputProperty("encoding", "utf-8");
            //将被变换的Document对象封装到一个DOMSource对象中
            DOMSource domSource = new DOMSource(document);
    
            StreamResult sr = new StreamResult(new File("new.xml"));
            //调用转换器对象的transform方法将文档转成相应文件或流 
            trans.setOutputProperty(OutputKeys.INDENT, "yes");
            trans.transform(domSource, sr); 
        }
    }