前端之家收集整理的这篇文章主要介绍了
XML的四种创建方式，
前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
话不多说，直接上代码：
package com.whoami.file;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Result;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamResult;
import org.dom4j.DocumentHelper;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
import org.jdom2.CDATA;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
public class XMLCreateRSS {
public static void main(String[] args) {
// new DOMCreateXml("bookDomCreate.xml");
// new SAXCreateXml("bookSAXCreate.xml");
//new DOM4JCreateXMLRSS("bookDOm4JCreateRSS.xml");
new JDOMCreateXml("bookJDOMCreateRSS.xml");
}
}
class DOMCreateXml {
DOMCreateXml(String path) {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document document = db.newDocument();
// 设置xml的样式
document.setXmlStandalone(true);
/**
* document 文件 在文件中创建根节点，在根节点中创建子节点
*/
// 创建节点
Element bookstore = document.createElement("bookstore");
Element book = document.createElement("book");
Element name = document.createElement("name");
Element language = document.createElement("language");
// 添加节点
// 在文件下添加子节点就是根节点
document.appendChild(bookstore);
// 在根节点中添加节点，就是根结点的子节点。二级树关系
bookstore.appendChild(book);
book.appendChild(name);
book.appendChild(language);
// 为book创建属性
book.setAttribute("id","1");
// 为name设置值
name.setTextContent("云计算科学与技术");
language.setTextContent("English");
/**
* 创建输出TransformerFactory的对象
*/
TransformerFactory tff = TransformerFactory.newInstance();
Transformer tf = tff.newTransformer();
tf.setOutputProperty(OutputKeys.ENCODING,"UTF-8");
tf.setOutputProperty(OutputKeys.METHOD,"xml");
// 设置换行
tf.setOutputProperty(OutputKeys.INDENT,"yes");
tf.transform(new DOMSource(document),new StreamResult(new File(path)));
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (TransformerConfigurationException e) {
e.printStackTrace();
} catch (TransformerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
* 使用SAX生成xml文件
*/
class SAXCreateXml {
SAXCreateXml(String path) {
// 模拟一个book类型的数据链表
List<Book> BList = new ArrayList<Book>();
Book b1 = new Book();
Book b2 = new Book();
b1.setId(1);
b1.setName("三国演义");
b1.setPrice(99.2);
b1.setAuthor("罗贯中");
b1.setTime("1856");
b2.setId(2);
b2.setName("西游记");
b2.setPrice(85.0);
b2.setAuthor("吴承恩");
b2.setLanguage("中文");
b2.setTime("1586");
BList.add(b1);
BList.add(b2);
SAXTransformerFactory stff = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
try {
TransformerHandler handler = stff.newTransformerHandler();
Transformer ts = handler.getTransformer();
ts.setOutputProperty(OutputKeys.ENCODING,"UTF-8");
ts.setOutputProperty(OutputKeys.METHOD,"xml");
// 设置换行
ts.setOutputProperty(OutputKeys.INDENT,"yes");
// 创建输出文件
File f = new File(path);
if (!f.exists()) {
f.createNewFile();
}
// 创建reslut返回值
Result rs = new StreamResult(f);
// 利用handler与result关联
handler.setResult(rs);
// 利用handler向文件中写入内容
// 打开domcument
handler.startDocument();
AttributesImpl attr = new AttributesImpl();
handler.startElement("","","BookStore",attr);
for (Book book : BList) {
attr.clear();
attr.addAttribute("","id",String.valueOf(book.getId()));
handler.startElement("","book",attr);
if (book.getName() != null && !book.getName().trim().equals("")) {
attr.clear();
handler.startElement("","name",attr);
handler.characters(book.getName().tocharArray(),book.getName().length());
handler.endElement("","name");
}
if (String.valueOf(book.getPrice()) != null && !String.valueOf(book.getPrice()).trim().equals("")) {
attr.clear();
handler.startElement("","price",attr);
handler.characters(String.valueOf(book.getPrice()).tocharArray(),String.valueOf(book.getPrice()).length());
handler.endElement("","price");
}
if (book.getAuthor() != null && !book.getAuthor().trim().equals("")) {
attr.clear();
handler.startElement("","author",attr);
handler.characters(book.getAuthor().tocharArray(),book.getAuthor().length());
handler.endElement("","author");
}
if (book.getTime() != null && !book.getTime().trim().equals("")) {
attr.clear();
handler.startElement("","time",attr);
handler.characters(book.getTime().tocharArray(),book.getTime().length());
handler.endElement("","time");
}
if (book.getLanguage() != null && !book.getLanguage().trim().equals("")) {
attr.clear();
handler.startElement("","language",attr);
handler.characters(book.getLanguage().tocharArray(),book.getLanguage().length());
handler.endElement("","language");
}
// 结束document
handler.endElement("","book");
}
handler.endElement("","BookStore");
handler.endDocument();
} catch (TransformerConfigurationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
* DOM4J创建XML-->RSS
*/
class DOM4JCreateXMLRSS {
DOM4JCreateXMLRSS(String path) {
// 创建Element对象
org.dom4j.Document document = DocumentHelper.createDocument();
// 创建根节点RSS
org.dom4j.Element RSS = document.addElement("RSS");
// 向RSS里面添加属性
RSS.addAttribute("version","2.0");
// 生成子节点，和节点内容
org.dom4j.Element book = RSS.addElement("book");
org.dom4j.Element title = book.addElement("title");
title.setText("云计算");
// 转义符
org.dom4j.Element name = book.addElement("name");
name.setText("<!哈哈>");
// 美化xml样式
OutputFormat format = OutputFormat.createPrettyPrint();
// format.setEncoding("GBK");
// 生成xml文件
File file = new File(path);
try {
XMLWriter write = new XMLWriter(new FileOutputStream(file),format);
// 设置是否转移，默认为true
write.setEscapeText(false);
write.write(document);
write.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* JDOM方式创建xml
*/
class JDOMCreateXml {
JDOMCreateXml(String path) {
// 生成一个根结点
org.jdom2.Element RSS = new org.jdom2.Element("RSS");
// 添加属性
RSS.setAttribute("version","2.0");
// 生成document
org.jdom2.Document document = new org.jdom2.Document(RSS);
//创建子节点
org.jdom2.Element book = new org.jdom2.Element("book");
RSS.addContent(book);
book.setAttribute("id","1");
org.jdom2.Element title = new org.jdom2.Element("title");
title.setText("语文");
book.addContent(title);
org.jdom2.Element language = new org.jdom2.Element("language");
//language.addContent(new CDATA("<===国内最新新闻==>"));
language.addContent("<===国内最新新闻==>");
book.addContent(language);
Format format = Format.getCompactFormat();
//设置换行
format.setIndent("");
format.setExpandEmptyElements(true);
//format.setEncoding("GBK");
XMLOutputter outPuter = new XMLOutputter(format);
// 利用outPuter将document装换成xml
File file = new File(path);
try {
outPuter.output(document,new FileOutputStream(file));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
原文链接：https://www.f2er.com/xml/294605.html
