无法在codeigniter中调用/运行ajax

Question

我在CodeIgniter中创建了Jquery Ajax来调用相同的值。 下面的代码。 index.php =查看

    <!-- JK Start -->                
    <div id="hide-table">
    <form action="" method="">
    <select id="fee_group">
    <?php
    $fee_group = $this->db->get("feegroup"); #fetching all the values from feegroup table to get related fee structure
    $details = $fee_group->result();
    foreach ($details as $d) {
        echo "<option value='".$d->feegroupID."'>".$d->name."</option>";
    }
     ?>
    </select>
    </form>
     <div id="record">
     </div>
    </div>
    <!-- JK Over -->   
        </div><!-- ./wrapper -->
<script type="text/javascript">
               $(document).ready(function(){
                    $("#fee_group").on("change",function(){
                          var view_permissions = $("#fee_group").val();
                          alert(view_permissions);
                          $.ajax({                        
                              type:"post",
                              url:"http://sample.in/school/feemonths/record",
                              data:"view_permissions="+view_permissions,
                              success:function(msg){
                                 $("#record").html(msg);
                              }

                          });

                    });
               });

       </script> 

fee_m.php =控制器

public function record()
    {
        echo "this is sample data";
    }

当我点击或选择一个值时，没有任何回报。我直接打电话时看到的网址是正确的。