logging 日志完整应用实例

日志文件函数：日志相关设置
logfile.py

import logging
def logg():# LOG_FORMAT = "%(asctime)s - %(levelname)s - %(message)s"LOG_FORMAT = "%(asctime)s - %(levelname)s - %(filename)s, line:%(lineno)d - %(message)s" # 带有文件名、行号DATE_FORMAT = "%Y-%m-%d %H:%M:%S"logger = logging.getLogger()logger.setLevel(logging.DEBUG)  #这里设置日志的级别# 输出到文件file_handler = logging.FileHandler("all.log", mode='a', encoding='utf-8')# 输出到控制台stream_handler = logging.StreamHandler()# 错误日志单独输出到一个文件error_handler = logging.FileHandler('error.log', mode='a', encoding='utf-8')error_handler.setLevel(logging.ERROR)  #注意这里，错误日志只记录ERROR级别的日志# 将所有的处理器加入到logger中logger.addHandler(file_handler)logger.addHandler(stream_handler)logger.addHandler(error_handler)formatter = logging.Formatter(fmt=LOG_FORMAT, datefmt=DATE_FORMAT)# 设置格式化file_handler.setFormatter(formatter)stream_handler.setFormatter(formatter)error_handler.setFormatter(formatter)logger.info('info级别的')logger.error('error级别')logger.debug('debug级别')logger.warning('warning级别')
logg()

应用用文件uploadAPI.py调用日志文件方法
uploadAPI.py


from flask import Flask, jsonify , request,render_template,redirect,url_for
import os
from flask import send_from_directory
from werkzeug.utils import secure_filename 
import logging
import traceback  
from logfile import logg
'''
logging.basicConfig(filename='log_record.txt',filemode='w', format='[%(asctime)s] [%(levelname)s] >>>  %(message)s',level=logging.DEBUG,datefmt='%Y-%m-%d %I:%M:%S')'''try:app = Flask(__name__)#UPLOAD_FOLDER = r'..\pythonproject01\flask\caiquan2\media'UPLOAD_FOLDER = r'..\media' #UPLOAD_FOLDER = r'D:\pythonXangmu\pythonproject01\flask\caiquan2\media'ff = os.path.abspath(UPLOAD_FOLDER)print('路径',ff)ALLOWED_EXTENSIONS = set(['txt','pdf','png','jpg','jpeg','doc'])app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER#设置上传文件存储路径def allowed_file(filename):houzui_name = "."in filename and filename.rsplit('.',1)[1].lower()#return houzui_name in ALLOWED_EXTENSIONS#print('#####',houzui_name in ALLOWED_EXTENSIONS)#Trueif  houzui_name in ALLOWED_EXTENSIONS :return '上传成功'elif  houzui_name not in ALLOWED_EXTENSIONS :return '上传文件格式不支持'@app.route('/')def index():return render_template('upload.html')   @app.route('/center/upload',methods=['POST'])#对应表单里面的action="/upload"def center():if "file" not in request.files: #"file" 对应前端upload.html 中的namereturn redirect(request.url)#redirect 重定向新的地址file = request.files.get('file')  # 获取文件if not file :#如果文件为空return "请选择文件"if not allowed_file(file.filename): #如果不是传入的指定格式文件。重定向到当前url#return redirect(request.url)return redirect('www.baidu.com')if file and allowed_file(file.filename):filename = secure_filename(file.filename)  # 用这个函数确定文件名称是否是安全file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))  # 保存文件  os.path.join把目录和文件名合成一个路径return redirect(url_for('show', filename=filename))# 展示@app.route('/show/<filename>')def show(filename):# send_from_directory可以从目录加载文件return send_from_directory(app.config['UPLOAD_FOLDER'], filename)if __name__ == '__main__':app.run(host='0.0.0.0', port=5000, debug=True)except Exception as ee:# logging.error('main programe error')# logging.error(ee)#logging.error(ee)#logging.error(traceback.format_exc)# logger.info('info级别的')# logger.error('error级别')# logger.debug('debug级别')# logger.warning('warning级别')logg()#调用日志文件中的函数方法

关联html文件
upload.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传</title>
</head>
<body><form action="/center/upload" method="post" enctype="multipart/form-data"><input type="file" name="file" ><input type="submit"  value="提交"></form></body>
</html>