weapp-api/app/Http/Controllers/Controller.php

<?php

namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Dingo\Api\Routing\Helpers;
use Illuminate\Support\Facades\DB;
use Laravel\Lumen\Routing\Controller as BaseController;

class Controller extends BaseController
{
    use Helpers;


    public function success($data,$msg="ok"){
        $this->parseNull($data);
        $result = [
            "code"=>200,
            "msg"=>$msg,
            "data"=>$data,
        ];
        return response()->json($result,200);
    }


    public function success_list($data,$msg="ok" ,$total=0,$size=15){
        $this->parseNull($data);
        $result = [
            "code"=>200,
            "msg"=>$msg,
            "data"=>[
                'total'=>$total,
                'size'=>$size,
                'list'=>$data
            ],
        ];
        return response()->json($result,200);
    }

    //失败返回
    public function error($code="422",$data="",$msg="fail"){
        $result = [
            "code"=>$code,
            "msg"=>$msg,
            "data"=>$data
        ];
        return response()->json($result,200);
    }

    //如果返回的数据中有 null 则那其值修改为空 （安卓和IOS 对null型的数据不友好，会报错）
    private function parseNull(&$data){
        if(is_array($data)){
            foreach($data as &$v){
                $this->parseNull($v);
            }
        }else{
            if(is_null($data)){
                $data = "";
            }
        }
    }
}