java - 如何使用 JSP、Servlet 检索可动态添加的多个输入框的值？

Question

如何使用 JSP、Servlet 检索可动态添加的多个输入框的值？

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Name:</label>
          <div class="col-md-8">
            <input id="textinput" name="textName" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Address Line 1:</label>
          <div class="col-md-8">
            <input id="textinput" name="textadr1" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Address Line 2:</label>
          <div class="col-md-8">
            <input id="textinput" name="textadr2" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

          <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Country:</label>
          <div class="col-md-4">
            <input id="textinput" name="textcntry" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

          <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Registration Number:</label>
          <div class="col-md-4">
            <input id="textinput" name="textregNo" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

          <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Registration Date:</label>
          <div class="col-md-4">
            <input id="textinput" name="textregDate" type="date"  class="form-control input-md" >
          </div>
        </div>

          <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Date of Dealing:</label>
          <div class="col-md-4">
            <input id="textinput" name="textDateDealing" type="date" class="form-control input-md" >
          </div>
        </div>

      </fieldset>

      <div id="contact-person-container">

      <div class="contact-person">
      <hr> 
      <fieldset id="modal_form">

      <button type='button' class='close closebtn'  aria-hidden='true'>&times;</button>
        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Contact Person:</label>
          <div class="col-md-4">
            <input id="textinput" name="textinput" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Phone #:</label>
          <div class="col-md-4">
            <input id="textinput" name="textinput" type="text" placeholder="(_ _ _) _ _ _ _ _ _ _" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">fax #:</label>
          <div class="col-md-4">
            <input id="textinput" name="textinput" type="text" placeholder="(_ _ _) _ _ _ _ _ _ _" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Email:</label>
          <div class="col-md-8">
            <input id="textinput" name="textinput" type="email" placeholder="" class="form-control input-md" >
          </div>
        </div>



</fieldset>
</div> 

 </div>          
 <!-- /#contact-person-container -->             

  </div>
  <div class="modal-footer">
    <button type="button" id="addAnotherContactBtn" class="btn btn-   

primary">Add Another Contact</button>
        <button type="submit" class="btn btn-primary">Create Agent</button>
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
  </div>

    </form>

这是我们可以根据需要从上面的表单中拥有任意数量的输入字段的部分。

 <fieldset id="modal_form">

      <button type='button' class='close closebtn'  aria-hidden='true'>&times;</button>
        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Contact Person:</label>
          <div class="col-md-4">
            <input id="textinput" name="textinput" type="text" placeholder="" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Phone #:</label>
          <div class="col-md-4">
            <input id="textinput" name="textinput" type="text" placeholder="(_ _ _) _ _ _ _ _ _ _" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">fax #:</label>
          <div class="col-md-4">
            <input id="textinput" name="textinput" type="text" placeholder="(_ _ _) _ _ _ _ _ _ _" class="form-control input-md" >
          </div>
        </div>

        <!-- Text input-->
        <div class="form-group">
          <label class="col-md-4 control-label" for="textinput">Email:</label>
          <div class="col-md-8">
            <input id="textinput" name="textinput" type="email" placeholder="" class="form-control input-md" >
          </div>
        </div>

如何获取动态输入框，然后使用 servlet 将其添加到数据库？

Answer 1

输入元素的 ID 必须是 unique 要列出所有参数，您可以使用 request.getParameterMap() 并从 servlet 迭代它。

参见Get all parameters from JSP page更多示例