flask框架：自定义异常

小灰灰 2022-11-22 10:22 190阅读 0赞

# 前言 #

项目开发自定义异常，返回给前端，友好显示

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# 自定义异常 #

手动抛出异常类：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center]  
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### 完善异常信息 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 2]

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# -*- coding: utf-8 -*-
    # @Author : ZhaoCunWei
    # @Time : 2020/11/4 2:14 下午
    # @Function:
    from http.client import HTTPException
    
    from flask import request, json
    
    
    class APIException(HTTPException):
        code = 500
        msg = 'sorry, we make a mistakeO(∩_∩)O哈哈~'
        error_code = 999
    
        def __init__(self, msg=None, code=None, error_code=None, hearders=None):
    
            if code:
                self.code = code
            if error_code:
                self.error_code = error_code
            if msg:
                self.msg = msg
            super(APIException, self).__init__(msg, None)
    
    
        # 定义返回字典
        def get_body(self, environ=None):
            body = dict(
                msg = self.msg,
                error_code = self.error_code,
                request = request.metho+ ' ' + self.get_url_no_param()
            )
            text = json.dumps(body)
            return text
        def get_header(self, environ=None):
            """GET a list of header."""
            return [('Content-Type', 'application/json')]
    
        @staticmethod
        def get_url_no_param():
            full_path = str(request.full_path)
            main_path = full_path.split('?')
            return main_path[0]

# 全局异常处理 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 5]  
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