怎么利用一个dom对象生成一个xml文件

一个XML文档，可以先构造一个DOM，然后将DOM转化为xml序列，输出或者生成文件。package test

import java.io.ByteArrayOutputStream

import java.io.File

import java.io.FileOutputStream

import javax.xml.parsers.DocumentBuilder

import javax.xml.parsers.DocumentBuilderFactory

import javax.xml.transform.Transformer

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 Test {

public static void generate(){

try {

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance()

DocumentBuilder builder = factory.newDocumentBuilder()

Document document = builder.newDocument()

document.setXmlVersion("1.0")

document.setXmlStandalone(true)

Element root = document.createElement_x("MobileNet") //创建根节点

document.appendChild(root) //将根节点添加到Document对象中

Element pageElement = document.createElement_x("page")//设置第一个page元素到

pageElement.setAttribute("name", "list.jsp")//设置page节点的name属性

Element methodElement = document.createElement_x("method") //设置method节点

methodElement.setTextContent("get") //给method设置值

pageElement.appendChild(methodElement)//添加method节点到page节点内

Element displayElement = document.createElement_x("display") //设置method节点

displayElement.setTextContent("list撒旦发放")//给display设置值

pageElement.appendChild(displayElement) //添加display节点到page节点内

Element request_paramElement = document.createElement_x("request_param")

request_paramElement.setTextContent("request_param1|request_param2")

pageElement.appendChild(request_paramElement)

root.appendChild(pageElement)

pageElement = document.createElement_x("page") //设置第二个page元素到

pageElement.setAttribute("name", "content.jsp")//设置page节点的name属性

methodElement = document.createElement_x("method")

methodElement.setTextContent("post")

pageElement.appendChild(methodElement)

displayElement = document.createElement_x("display")

displayElement.setTextContent("content")

pageElement.appendChild(displayElement)

Element url_titleElement = document.createElement_x("url_title") //设置url_title节点

url_titleElement.setTextContent("title,publisher,published_calendar")//给url_title设置值

pageElement.appendChild(url_titleElement)//添加url_title节点到page节点内

root.appendChild(pageElement)//将page段加人根节点内

TransformerFactory transFactory = TransformerFactory.newInstance()//开始把Document映射到文件

Transformer transFormer = transFactory.newTransformer()

DOMSource domSource = new DOMSource(document) //设置输出结果

File file = new File("MobileNetRule.xml")//生成xml文件

if (!file.exists()) {

file.createNewFile()

}

FileOutputStream out = new FileOutputStream(file) //文件输出流

StreamResult xmlResult = new StreamResult(out) //设置输入源

transFormer.transform(domSource, xmlResult) //输出xml文件

System.out.println(file.getAbsolutePath()) //测试文件输出的路径

TransformerFactory tf = TransformerFactory.newInstance()

Transformer t = tf.newTransformer()

t.setOutputProperty("{/encoding/}","GB2312/")

ByteArrayOutputStream boc = new ByteArrayOutputStream()

t.transform(new DOMSource(document), new StreamResult(boc))

String xmlstring = boc.toString()

System.out.println(xmlstring)

} catch (Exception e) {

e.printStackTrace()

}

}

public static void main(String[] args){

Test.generate()

}

}

如何使用dom拼接xml字符串（标准方式）

如何使用dom拼接xml字符串（标准方式） .

package com.my.test

import org.dom4j.Document

import org.dom4j.DocumentHelper

import org.dom4j.Element

public class XmlGroup {

/**

* 返回applogin接口的请求xml yes

* @param guid

* @param guidpwd

* @return String xml信息

*/

public static String getRquestXml(String guid, String guidpwd)

{

Document requestDoc = DocumentHelper.createDocument()

Element root = requestDoc.addElement("message")

Element headElement = root.addElement("head")

headElement.addElement("guid").addText(guid)

Element paramsElement = root.addElement("body").addElement("params")

paramsElement.addElement("pwd").addText(guidpwd)

paramsElement.addElement("callbackurl")

return root.asXML()

}

/**

* 返回searchemployee接口的请求xml

* @param appid

* @param tag

* @param accounts

* @return String

*/

public String getRequestSearchEmployeeXml(String appid, String tag, String accounts)

{

Document requestDoc = DocumentHelper.createDocument()

Element root = requestDoc.addElement("message")

Element headElement = root.addElement("head")

headElement.addElement("appid").addText(appid)

headElement.addElement("tag").addText(tag)

headElement.addElement("accounts").setText(accounts)

Element paramsElement = root.addElement("body").addElement("params")

paramsElement.addElement("condition").setText(accounts)

paramsElement.addElement("pagecount").setText("20")

paramsElement.addElement("pagenum").setText("1")

return root.asXML()

}

public static void main(String agrs[])

{

//test

String xml=getRquestXml("zhangyi","123")

System.out.println(xml)

//test

String xml2=getRquestXml("mobile","ads324sdsa4sf3w")

System.out.println(xml2)

}

}

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