修改接口http状态

application/third_party/train/controllers/search.php

@@ -233,6 +233,7 @@ class search extends CI_Controller{
 		$trainDate = json_decode($json)->trainDate;
 		
 		if(empty($trainFrom) || empty($trainTo)){
+			header("HTTP/1.1 404 Not Found");  
 			exit('{"status":"201","reason":"车站查询失败","data":""}');
 		}
 		
@@ -241,6 +242,7 @@ class search extends CI_Controller{
 		$trainToCode = $this->BIZ_intel_train_model->get_code_by_name($trainTo);
 		
 		if(empty($trainFromCode) || empty($trainToCode)){
+			header("HTTP/1.1 404 Not Found");  
 		    exit('{"status":"202","reason":"站点名转换失败","data":""}');
 		}
 		
@@ -251,6 +253,7 @@ class search extends CI_Controller{
 		
 		//如果结果为空则直接返回为空的结果
 		if(empty($obj)){
+			header("HTTP/1.1 404 Not Found");  
 			exit('{"status":"203","reason":"无车次信息！","data":""}');
 		}