from flask import Flask,url_for
from order.imooc import route_imooc
from common.libs.UrlManager import UrlManager
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.register_blueprint( route_imooc,url_prefix = "/imooc" )

app.config['SQLALCHEMY_DATABASE_URL'] = 'mysql://root:root@127.0.0.1/mysql'
db = SQLAlchemy(app)

@app.route('/')
def hello_world():
    from sqlalchemy import text
    sql = text("SELECT * FROM  'user'")
    result = db.engine.execute( sql )
    for row in result:
       app.logger.info( row )

    url = url_for( "index" )
    #使用url_for链接管理器设置首页

    url_1 = UrlManager.buildUrl( "/api" )
    url_2 = UrlManager.buildStaticUrl( "/css/bootstrap.css" )

    msg =  'helloworld,url:%s,url_1:%s,url_2:%s'%( url,url_1,url_2 )

    app.logger.error( msg )
    app.logger.info(msg)
    app.logger.debug(msg)
    return msg

@app.route("/api")
def index():
    return 'Index page'

@app.route("/api/hello")
def hello():
    return 'hello'

if __name__ == "__name__":
    app.run( host='0.0.0.0',debug = True )
    #开启外部访问

@app.errorhandler(404)
def page_note_found(error):
    app.logger.error( error )
    return 'This page does not exist',404

老师，这个我确实不知道该怎么排除错误了。
还有个问题就是，这个debug mode一直打不开呀