Bootstrap 模态框多次显示后台提交多次BUG的解决方法

<button class="btn btn-info" id="modal-click-error">点击弹出模态框</button>

<div class="modal" tabindex="-1" role="dialog" id="myModal">
 <div class="modal-dialog" role="document">
 <div class="modal-content">
  <div class="modal-header">
  <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
  <h4 class="modal-title">Modal title</h4>
  </div>
  <div class="modal-body">
  <p>One fine body…</p>
  </div>
  <div class="modal-footer">
  <button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
  <button type="button" class="btn btn-primary">提交</button>
  </div>
 </div><!-- /.modal-content -->
 </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
$(function() {

 $('#modal-click-error').on('click', function() {
  $('#myModal').modal('show');
  
  $("#myModal .btn-primary").on('click', function() {
   alert("提交");
  });
 });
 
});

$(function() {

 $('#modal-click-error').on('click', function() {
  $('#myModal').modal('show');
 });
 
 $("#myModal .btn-primary").on('click', function() {
  alert("提交");
 });
 
});