1.更改控制器Banner.php
~~~
<?php
namespace app\api\controller\v1;
use app\api\validate\IDMustBePostiveInt;
use app\api\model\Banner as BannerModel;
use think\Exception;
class Banner{
//获取指定id的banner信息
public function getBanner($id)
{
(new IDMustBePostiveInt())->goCheck();
$banner=BannerModel::getBannerByID($id);
return $banner;
}
}
~~~
2.在config配置`exception_handle`
~~~
// 异常处理handle类 留空使用 \think\exception\Handle
//'exception_handle' => '',
'exception_handle' => 'app\lib\exception\ExceptionHandler',
~~~
3.在`app\lib\exception`下新建ExceptionHandler.php文件
~~~
<?php
namespace app\lib\exception;
use Exception;
use think\exception\Handle;
class ExceptionHandler extends Handle
{
public function render(Exception $e)
{
return json('hello 异常');
}
}
~~~
4.在`app\lib\exception`下新建BaseException.php文件
~~~
<?php
namespace app\lib\exception;
use think\Exception;
/**
* Class BaseException
* 自定义异常类的基类
*/
class BaseException extends Exception
{
public $code = 400;
//public $msg = 'invalid parameters';
public $msg = '参数错误';
public $errorCode = 999;
}
~~~
5.在`app\lib\exception`下新建BannerMissException.php文件
~~~
<?php
namespace app\lib\exception;
class BannerMissException extends BaseException
{
public $code = 404;
public $msg = '请求的Banner不存在';
public $errorCode = 40000;
}
~~~
结果
