from flask.ext.script import Manager

# 报错 no module named flask.ext

解决办法：from flask_script import  Manager  网上说是新版flask推荐这种方式导入扩展包

# 继续报错：no module named flask_script

解决办法：pip install flask_script

# 继续报错： ModuleNotFoundError: No module named 'setuptools'

    ----------------------------------------

ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

# 分析，原来是 没有安装 setuptools

# 安装 setuptools

pip install setuptools 

# pip install flask_script

# 然后解决问题

from flask_script import Manager

from logs.logs import create_app, setup_log

from flask import url_for,redirect

from flask_script import Manager

from config.config import Config

import logging

app = create_app("development")  # 这里通过一个函数创建了app的实例对象

manage = Manager(app) # 创建Manager的实例对象，参数是app对象



@app.route("/")

def index():

    logging.debug("测试打印日志")

    # logging.warning("测试打印日志")

    # logging.error("测试打印日志")

    return "index page"

# 传递路径参数，通过视图函数的形参传递

@app.route("/hello/<username>")

def hello(username):

    logging.debug(username)

    return "hello page" + username

# 转换器：可以将传递的参数进行类型转换

@app.route("/user/<int:p_id>")

def converter_int(p_id):

    logging.warning(str(p_id))

    return "p_id: " + str(p_id)

# 构建url

@app.route("/new")

def make_url():

    """

    url_for(视图函数的名字，链接后面的参数)

    :return:

    """

    new_url = url_for('hello', username="zhangyanyan")

    print(new_url)

    return redirect(new_url)

if __name__ == '__main__':

    manage.run()  启动方式变成：manage.py目录下，python manage.py runserver 启动项目

import logging

from logging.handlers import RotatingFileHandler

from flask import Flask

from config.config import config

def setup_log(config_name):

    """

    :param config_name: 传入日志等级

    :return:

    """

    # 设置日志的的登记

    logging.basicConfig(level=config[config_name].LOG_LEVEL)

    # 创建日志记录器，设置日志的保存路径和每个日志的大小和日志的总大小

    file_log_handler = RotatingFileHandler("logs/log", maxBytes=1024*1024*100,backupCount=100)

    # 创建日志记录格式，日志等级，输出日志的文件名 行数 日志信息

    formatter = logging.Formatter("%(levelname)s %(filename)s: %(lineno)d %(message)s")

    # 为日志记录器设置记录格式

    file_log_handler.setFormatter(formatter)

    # 为全局的日志工具对象（flaks app使用的）加载日志记录器

    logging.getLogger().addHandler(file_log_handler)

def create_app(config_name):

    """

    :param config_name: info bug error

    :return:

    """

    # 创建app实例前先配置好日志文件

    setup_log(config_name)

    # 创建app实例对象

    app = Flask(__name__)

    # 实例对象从配置文件中加载配置

    app.config.from_object(config[config_name])   # 这里直接拿到的是类的名字，也就是引用

    return app

import logging

class Config(object):

    # 设置日志等级

    LOG_LEVEL = logging.DEBUG

class DevelopConfig(Config):

    """开发环境下的配置"""

    DEBUG = True

class ProductConfig(Config):

    """生成环境下的配置"""

    DEBUG = False

    LOG_LEVEL = logging.WARNING

class TestConfig(Config):

    """测试环境下的配置"""

    DEBUG = True

    TESTING = True

config = {

    "development": DevelopConfig,

    "production": ProductConfig,

    "testing": TestConfig,

}

INFO _internal.py: 122  * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

INFO _internal.py: 122  * Restarting with stat

WARNING _internal.py: 122  * Debugger is active!

INFO _internal.py: 122  * Debugger PIN: 340-059-688

DEBUG manage.py: 13 测试打印日志

WARNING manage.py: 14 测试打印日志

ERROR manage.py: 15 测试打印日志

INFO _internal.py: 122 127.0.0.1 - - [24/Nov/2019 15:10:29] "GET / HTTP/1.1" 200 -

INFO _internal.py: 122  * Detected change in '/Users/xxx/PycharmProjects/flask_project1/manage.py', reloading

INFO _internal.py: 122  * Restarting with stat

WARNING _internal.py: 122  * Debugger is active!

INFO _internal.py: 122  * Debugger PIN: 340-059-688

DEBUG manage.py: 22 zhang

INFO _internal.py: 122 127.0.0.1 - - [24/Nov/2019 15:12:01] "GET /hello/zhang HTTP/1.1" 200 -

INFO _internal.py: 122  * Detected change in '/Users/xxx/PycharmProjects/flask_project1/manage.py', reloading

INFO _internal.py: 122  * Restarting with stat

WARNING _internal.py: 122  * Debugger is active!

INFO _internal.py: 122  * Debugger PIN: 340-059-688