如何从javascript向servlet发送值(动态创建文本框) [英] how to send value to servlet from javascript (Dynamically creates text box)

问题描述

我正在使用jsp/servlet在Java Web应用程序中开发一个项目.

I am developing a project in java web application using jsp/servlet.

在此页面中，我正在Java脚本的帮助下创建一个文本框.

Here in this page I am creating a text box with the help of java script.

 <script>
 var newInput4=document.createElement("input");
newInput4.className="form-control ";
newInput4.name="totalunit"+instance;
newInput4.placeholder="Unit";   
newInput4.type="text";
</script>

问题在于我如何从servlet进入数据库，因为此输入是动态创建的.

Problem is that how could I entry in database from servlet Because this input dynamically created.

newInput4.name="totalunit"+instance;

此行动态更新名称.

如何将名称"发送到servlet?

how to send "name" to servlet?

推荐答案

尝试以下方法.

<script>
  var newInput4=document.createElement("input");
  newInput4.className="form-control ";
  newInput4.name="totalunit1";
  newInput4.placeholder="Unit";   
  newInput4.type="text";
  var formId = document.getElementById('formInput');
  newInput4.appendChild(formId);

</script>

<form method="GET" id="formInput" action="application/servletname"> //
<input type="submit" name="submit" value="submit">
</form>

//Serveletname.Java
String id = request.getParameter("totalunit1");

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