Flex与Java Servlet交互实例

/** * 生成XML文件的类 */ package com.xml; import java.io.Writer; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.ParserConfigurationException; import org.w3c.dom.Document; import org.w3c.dom.Element; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.OutputKeys; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; public class XML { DocumentBuilderFactory builderFactory = null ; DocumentBuilder builder = null ; Document document = null ; Element root = null ; /** * 初始化一切预备参数 * * 编写者：王景辉 * * @throws ParserConfigurationException */ public void init() throws ParserConfigurationException { builderFactory = DocumentBuilderFactory.newInstance() ; builder = builderFactory.newDocumentBuilder() ; document = builder.newDocument() ; //*******生成根节点********// root = document.createElement("info") ; document.appendChild(root) ; } /** * 创建XML文档 * * @param strs * -------传送过来的姓名和密码和学校参数 * * 编写者：王景辉 湖南农业大学&湖南爱瑞洁投资管理公司 */ public void create(String[] strs) { //******第一级子节点******// Element first = document.createElement("user") ; root.appendChild(first) ; for(int i=0; i<strs.length; i++) { if(i==0) { //*******第二级子节点******// Element name = document.createElement("name") ; name.appendChild(document.createTextNode(strs[i])) ; first.appendChild(name) ; } if(i==1) { Element pwd = document.createElement("pwd") ; pwd.appendChild(document.createTextNode(strs[i])) ; first.appendChild(pwd) ; } if(i==2) { Element school = document.createElement("school") ; school.appendChild(document.createTextNode(strs[i])) ; first.appendChild(school) ; } } } public Document getDocument() { return document ; } /** * 把XML文档写入到输出流 * * @param out * ----指定的输出流 * @throws Exception * * 编写者：王景辉 湖南农业大学&湖南爱瑞洁投资管理公司 */ public void output(Writer writer) throws Exception{ Transformer trans = TransformerFactory.newInstance().newTransformer() ; trans.setOutputProperty(OutputKeys.ENCODING, "UTF-8") ; Source source = new DOMSource(document) ; Result result = new StreamResult(writer) ; trans.transform(source, result) ; writer.flush() ; writer.close() ; } }