TP5实现自定义抛出异常消息（关闭debug）

重写Handle的render方法，实现自定义异常消息-----------------------------------------------------------------------

首先要在config.php里面配置

// 异常处理handle类 留空使用 \think\exception\Handle
'exception_handle'       => '\\app\\common\\exception\\ExceptionHandler',

ExceptionHandler.php

<?php

namespace app\common\exception;

use think\exception\Handle;
use think\Log;
use Exception;

/**
 * 重写Handle的render方法，实现自定义异常消息
 * Class ExceptionHandler
 * @package app\common\library\exception
 */
class ExceptionHandler extends Handle
{
    private $code;
    private $message;

    /**
     * 输出异常信息
     * @param Exception $e
     * @return \think\Response|\think\response\Json
     */
    public function render(Exception $e)
    {
        if ($e instanceof BaseException) {
            $this->code = $e->code;
            $this->message = $e->message;
        } else {
            if (config('app_debug')) {
                return parent::render($e);
            }
            $this->code = 0;
            $this->message = $e->getMessage() ?: '很抱歉，服务器内部错误';
            $this->recordErrorLog($e);
        }
        return json(['msg' => $this->message, 'code' => $this->code]);
    }

    /**
     * 将异常写入日志
     * @param Exception $e
     */
    private function recordErrorLog(Exception $e)
    {
        Log::record($e->getMessage(), 'error');
        Log::record($e->getTraceAsString(), 'error');
    }
}

自定义异常类的基类---------------------------------------------------------------------------------------------

BaseException.php

<?php

namespace app\common\exception;

use think\Exception;

/**
 * Class BaseException
 * 自定义异常类的基类
 */
class BaseException extends Exception
{
    public $code = 0;
    public $message = 'invalid parameters';

    /**
     * 构造函数，接收一个关联数组
     * @param array $params 关联数组只应包含code、msg，且不应该是空值
     */
    public function __construct($params = [])
    {
        if (!is_array($params)) {
            return;
        }
        if (array_key_exists('code', $params)) {
            $this->code = $params['code'];
        }
        if (array_key_exists('msg', $params)) {
            $this->message = $params['msg'];
        }
    }
}

抛出异常时显示如下