笨Ajax調用不工作

從我的瀏覽一個我使用的是功能，使AJAX call.The功能不working.In控制檯中顯示的錯誤信息如下：笨Ajax調用不工作

POST http://localhost/jsnci/section/ajax_call_pop_district_data/10 404 (Not Found) 

XHR finished loading:POST"http://localhost/jsnci/section/ajax_call_pop_district_data/10".

和我」米制作Ajax調用如下：

<script type="text/javascript"> 
    function popDistrictData(){ 
     var dist_id = document.getElementById("ddlDist").value; 
     jQuery.ajax({ 
      type: "POST", 
      url: "<?=site_url()?>section/ajax_call_pop_district_data/"+dist_id, 
      dataType: 'json', 
      success: function(res) { 
       if (res) 
       { 
        jQuery("div#districtData").html(res.username); 
       } 
      } 
     }); 
    } 
</script>

什麼，我不明白的是在控制檯中，爲什麼在一開始顯示404錯誤，那麼相同功能的執行？請幫助。

My controller code: 
public function ajax_call_pop_district_data($did) 
{ 
    $dist_data = $this->District_model->pop_district_data($did); 
    echo $dist_data; 
}

我的模型代碼：

public function pop_district_data($did) 
{ 
    $html_dist_data=''; 

    $sql="SELECT d_name, d_about, d_attraction, d_howtoreach,d_img_nm 
       FROM districts 
       WHERE d_id= ?"; 
    $query = $this->db->query($sql, array($did)); //<---Here passing parameter to sql query 
    if ($query->num_rows() > 0) { 
     foreach ($query->result_array() as $row) 
     { 
      $html_dist_data.='<strong>ABOUT '.$row['d_name'].'</strong>'; 
      $html_dist_data.='<p>'; 
      $html_dist_data.='<a href="#" class="alignright"><img src="'.site_url().'assets/admin/uploads/district_img/'.$row['d_img_nm'].'" alt="Map of '.$row['d_name'].'" class="alignright" /></a>'; 
      $html_dist_data.= $row['d_about']; 
      $html_dist_data.='</p>'; 
      if($row['d_attraction'] != ''){ 
       $html_dist_data.='<strong>ATTRACTIONS</strong>'; 
       $html_dist_data.= $row['d_attraction']; 
      } 
      if($row['d_howtoreach'] != ''){ 
       $html_dist_data.='<strong>HOW TO REACH ?</strong>'; 
       $html_dist_data.= $row['d_howtoreach']; 
      } 
     } 
    } 

    return $html_dist_data; 
}

來源

2017-03-04 gomesh munda

404是一個HTTP錯誤。這意味着你找不到資源（或服務器這麼說） – mehulmpt

ajax方法的控制器代碼是什麼？ –

但是在控制器 –

請改變你的控制器這樣的代碼

public function ajax_call_pop_district_data() 
{ 
    $did = $this->uri->segment(3); 
    $dist_data = $this->District_model->pop_district_data($did); 
    echo $dist_data; 
}

這樣的腳本

<script type="text/javascript"> 
    function popDistrictData(){ 
     var dist_id = document.getElementById("ddlDist").value; 
     jQuery.ajax({ 
      type: "POST", 
      url: "<?=site_url()?>index.php/section/ajax_call_pop_district_data/"+dist_id, 
      dataType: 'json', 
      success: function(res) { 
       if (res) 
       { 
        jQuery("div#districtData").html(res.username); 
       } 
      } 
     }); 
    } 
</script>

來源

2017-03-04 07:43:46

笨Ajax調用不工作

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