/**
* 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() ;
}
}
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