6.4 软件开发目录规范
软件(例如:ATM)目录应该包含:
文件名 | 存放 | 备注 |
---|---|---|
bin | start.py,用于起动程序 | |
core | src.py,程序核心功能代码 | |
conf | settings.py, 程序配置信息 | |
db | db.txt 数据库信息 | |
lib | common.py ,存放常用功能 | |
log | access.log ,存放记录 |
start.py :
import sys,os #应该把项目的根目录添加到环境变量中 BASE_DIR=os.path.dirname(os.path.dirname(__file__)#os.path.dirname(__file__) 获取当前文件上一级路径名 sys.path.append(BASE_DIR) #拿到ATM所在的文件夹 from core import src src.run()
sys.path.append(r'D:\code\SH_fullstack_s1\day15\ATM') 添加的是绝对路径,不支持移植到别的硬件上运行
src.py :
from conf import settings from lib import common logger1=common.get_logger('atm') def login(): print('登录....') with open(settings.DB_PATH,encoding='utf-8') as f: for line in f: print(line) def register(): print('注册....') def shop(): print('购物....') def pay(): print('支付...') def transter(): print('转账...') common.logger('xxxx给他爹xx转账10000') logger1.debug('xxxx给他爹xx转账10000') logger1.error('xxxx给他爹xx转账10000,转账失败') def run(): while True: print(""" 1 登录 2 注册 3 购物 4 支付 5 转账 """) choice=input('>>: ').strip() if choice == '1': login() elif choice == '2': register() elif choice == '3': shop() elif choice == '4': pay() elif choice == '5': transter() else: print('输入错误指令')
settings.py:
DB_PATH=r'D:\code\SH_fullstack_s1\day15\ATM\db\db.txt' #自定义设置的文件路径 LOG_PATH=r'D:\code\SH_fullstack_s1\day15\ATM\log\access.log' LOGGING_DIC = {.....} #log配置字典
common.py :
from conf import settings def logger(msg): with open(settings.LOG_PATH,'a',encoding='utf-8') as f: f.write('%s\n' %msg) import logging.config import logging from conf import settings def get_logger(name): #name='atm' logging.config.dictConfig(settings.LOGGING_DIC) # 导入上面定义的logging配置 l1=logging.getLogger(name) return l1
6.5 logging 模块
import logging logging.basicConfig( #为logging模板指定全局配置,针对所有logger有效,控制打印到文件中 filename='access.log', # /stream=sys.stdout 打印在屏幕上,但和filename只能存在其一 format='%(asctime)s - %(name)s - %(levelname)s -%(module)s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S %p', level=40 ) logging.debug('debug...') # 10 logging.info('info....') #20 logging.warning('.....') #30 logging.error('......') # 40 logging.critical('.....') #50
6.51 logging模块的四类对象
logger:负责产生日志 logger1=logging.getLogger('xxx') filter:过滤日志(不常用) handler:控制日志打印到文件or终端 fh1=logging.FileHandler(filename='a1.log',encoding='utf-8') fh2=logging.FileHandler(filename='a2.log',encoding='utf-8') sh=logging.StreamHandler() formatter:控制日志的格式 formatter1=logging.Formatter( fmt='%(asctime)s - %(name)s - %(levelname)s -%(module)s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S %p', ) formatter2=logging.Formatter(fmt='%(asctime)s - %(message)s',)
logger ---->多个file handler <----多个formatter
绑定关系:
1.为logger1对象绑定handler: logger1.addHandler(fh1) logger1.addHandler(fh2) logger1.addHandler(sh) 2.为handler对象绑定日志格式 fh1.setFormatter(formatter1) fh2.setFormatter(formatter1) sh.setFormatter(formatter2) 设定日志级别: 两层关卡,必须都通过,日志才能正常记录 logger1.setLevel(10) fh1.setLevel(10) fh2.setLevel(10) sh.setLevel(10) #调用logger1对象下的方法,产生日志,然后交给不同的handler,控制日志记录到不同的地方 logger1.debug('调试信息') #调用logger1,产生日志
日志的继承
import logging logger1=logging.getLogger('xxx') logger2=logging.getLogger('xxx.son') logger3=logging.getLogger('xxx.son.grandson') sh=logging.StreamHandler() formatter2=logging.Formatter(fmt='%(asctime)s - %(message)s',) sh.setFormatter(formatter2) logger1.addHandler(sh) logger2.addHandler(sh) logger3.addHandler(sh) logger1.setLevel(10) logger2.setLevel(10) logger3.setLevel(10) sh.setLevel(10) logger1.debug('测试。。。。') logger2.debug('测试。。。。') logger3.debug('测试。。。。')