利用js实现前台动态添加文本框,后台获取文本框内容(示例代码)

  一共两个页面,分别如下:

  一.创建页面create.jsp

  

复制代码 代码如下:

  <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html>

  <title>

  </title>

  <head>

  </head>

  <body >

  <form id="form1" action="request.jsp">

  <script language="javascript" type="text/javascript">

  var count=0 ;

  function additem(id)

  {

  var row,cell,str;

  row = document.getElementByIdx_x(id).insertRow();

  if(row != null )

  {

  cell = row.insertCell();

  cell.innerHTML="<input id=\"St"+count+"\" type=\"text\" name=\"St"+count+"\" value= \"St"+count+"\"><input type=\"button\" value=\"删除\" onclick=\'deleteitem(this);\'>";

  count ++;

  }

  }

  function deleteitem(obj)

  {

  var curRow = obj.parentNode.parentNode;

  tb.deleteRow(curRow.rowIndex);

  }

  function getsub()

  {

  var re="";

  for (var  i = 0 ;i<count;i++)

  {

  re += document.getElementsByName("St"+i)[0].value;

  }

  document.getElementByIdx_x("Hidden1").value=re;

  }

  </script><table id="tb"></table>

  <input name="button" type="button" onclick='additem("tb")' value="添加>>"/><input type="submit" name="submit" onclick="getsub()" value="提交"/>

  <input id="Hidden1" name="Hidden1" type="hidden" value="" />

  </form>

  </body>

  </html>

  二.接收数据页面 request.jsp

  

复制代码 代码如下:

  <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

  <html>

  <head>

  <title>测试</title>

  </head>

  <%

  String data= request.getParameter("Hidden1");

  out.println("取得的数据为:"+data);

  %>

  <body>

  </body>

  </html>