ThinkPHP框架中的异常类不适合作为接口开发的异常显示，通常都需要自定义一个符合项目的异常类。restful api数据结构格式一般是:
status 业务状态码message 提示信息data 数据信息
在项目中新建文件：application\common\lib\exception\ApiHandleException.php,继承Handle类，覆盖掉原来的render方法异常处理类。实例代码：
<?phpnamespace app\common\lib\exception;use think\exception\Handle;class ApiHandleException extends Handle{public $httpCode = 500;public function render(\Exception $e){if(config('app_debug') == true){return parent::render($e);}if($e instanceof ApiException){$this->httpCode = $e->httpCode;}$data=['status' => 0,'message' => $e->getMessage() ,'data' => [],];return json($data, $this->httpCode);}}
在config.php中加入自己定义的异常类的namespace路径
// 异常处理handle类'exception_handle' => '\app\common\lib\exception\ApiHandleException',
在项目中新建文件：application\common\lib\exception\ApiException.php,
<?phpnamespace app\common\lib\exception;use think\Exception;class ApiException extends Exception{public $message = '';public $httpCode = 500;public $code = 0;public function __construct($message = '', $httpCode = 0, $code = 0){$this->message = $message;$this->httpCode = $httpCode;$this->code = $code;}}
输出异常例子
public function test($status){if($status != 1){throw new ApiException('提交不合法', 400);} return $status;}
