1、配置

开启调试

自定义路由

数据库

2、框架初始化

定义基类返回数据

php think make:controller BaseController --plain

控制器返回数据方法

<?php

namespace app\common\controller;

use think\Controller;

class BaseController extends Controller
{
    // 返回数据
    public static function showResCode($msg = '',$data=[],$code = 200){
        $res = [
          'msg' => $msg,
          'data' => $data
        ];
        return json($res, $code);
    }

    // 返回不带数据
    public static function showResWithoutCode($msg = '', $code = 200){
        return self::showResCode($msg, [], $code);
    }
}

自定义异常

异常类：BaseException

<?php
namespace app\lib\exception;

use Exception;

class BaseException extends Exception{
    public $code;
    public $msg;

    public function __construct($msg = '请求失败', $code= 400){
        $this->code = $code;
        $this->msg = $msg;
    }
}

异常处理：ExceptionHandle

<?php
namespace app\lib\exception;

use Exception;
use think\exception\Handle;

class ExceptionHandle extends Handle{
    public $code;
    public $msg;

    public function render(Exception $e)
    {

        if ($e instanceof BaseException) {
            $this->code = $e->code;
            $this->msg = $e->msg;
        } else {
            // 调试开启(开发环境下)，抛出非自定义异常让父类解决
            if (config('app.app_debug')) return parent::render($e);
            $this->code = 500;
            $this->msg = '服务器异常';
        }

        $res = [
            'msg' => $this->msg,
            'code' => $this->code,
        ];
        return json($res, $this->code);
    }
}

配置文件修改：app.php最后一行

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

测试：

自定义验证器基类

php think make:validate BaseValidate

BaseValidate.php

<?php

namespace app\common\validate;

use app\lib\exception\BaseException;
use think\Validate;

class BaseValidate extends Validate
{
    public function goCheck($scene = '')
    {
        // 拿到请求参数
        $params = request()->param();
        // 场景为空就全部验证，有值就按照场景定义验证
        $validate_res = empty($scene) ? $this->check($params) : $this->scene($scene)->check($params);
        if ($validate_res) throw new BaseException($this->getError());
        return true;
    }
}