Java 服务端动态生成XML文件-优快云博客

本文链接：https://blog.youkuaiyun.com/ictch/article/details/83891108

本来想用ajax+html这两个实现，但是很多前辈都说不可以，其实也是事实，所以就选择了Java。

功能：将用户提交的数据随机存储到xml文件（server端）。

废话不多讲了，看代码：

首先是html源码：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Welcome to VP!</title>
</head>
<body>
<form name="User" method="post" action="createXml.do" accept-charset="utf-8">
            姓名:<input type="text" name="name" />
            <br/>
            <br/>
            手机:<input type="text" name="tel" />
            <br/>
            <br/>
            <input type="submit" value="Join" />
        </form>
</html>

再次是servlet源码（CreateXml.java）:

public class CreateXml extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doPost(request,response);
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
   // TODO Auto-generated method stub
   String name=request.getParameter("name");
   byte[] Bname=name.getBytes("ISO-8859-1");
   name=new String(Bname);

   String tel=request.getParameter("tel");


  JavaToXml XML=new JavaToXml();
   try {
    XML.BuildXMLDoc(name, tel);
   } catch (JDOMException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
   response.sendRedirect("index.jsp");
}

}

最后是JavaToXml .java源码（你需要一个jar包：jdom.jar）：

public class JavaToXml {

public void BuildXMLDoc(String name, String tel) throws IOException,
JDOMException {

// 创建根节点 list;
Element root = new Element("List");

// 根节点添加到文档中；
Document Doc = new Document(root);

// 创建节点 user;
Element elements = new Element("User");

   // get the current time
   SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
   Date curDate = new Date(System.currentTimeMillis());// 获取当前时间
   String xmlName = formatter.format(curDate);

// 给 user 节点添加属性 id;
elements.setAttribute("id", xmlName);

   // 给 user 节点添加子节点并赋值；
   // new Element("name")中的 "name" 替换成表中相应字段，setText("xuehui")中 "xuehui
   // 替换成表中记录值；

   elements.addContent(new Element("Name").setText(name));
   elements.addContent(new Element("Tel").setText(tel));
   //System.out.println(name + "---" + tel);

// 给父节点list添加user子节点;
root.addContent(elements);

XMLOutputter XMLOut = new XMLOutputter();

// 输出 user.xml 文件；
XMLOut.output(Doc, new FileOutputStream("D:/"+xmlName + ".xml"));
}

}