Js is used to realize the foreground dynamic add text box the background to get the text box content of the sample code of

2020-03-29 23:56:57
OfStack

There are two pages in total, as follows:

One. Create the page create. JSP


<%@ 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=" delete " 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=" add >>"/><input type="submit" name="submit" onclick="getsub()" value=" submit "/>
    <input id="Hidden1" name="Hidden1" type="hidden" value="" />
    </form>
</body>
</html>

Two. Receive data page request-jsp


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

    <title> test </title>
  </head>
  <%
   String data= request.getParameter("Hidden1");
   out.println(" The data obtained are: "+data);
   %>
  <body>

  </body>
</html>