我不熟悉烧瓶开发,因此无法进行以下应用程序工作。我希望在run.py中声明Flask应用程序,并将其导入其他包中,例如下面的myapp。我之所以这样设计,是因为有多个独立的应用程序/程序包。尝试访问网址“ ... / hello”时收到404。我哪里错了?谢谢!
项目布局如下:
├── myapp
│ ├── __init__.py
│ └── myapp.py
└── run.py
myapp / __ init__.py包含:
from flask import Flask
my_app = Flask(__name__)
from . import myapp
myapp / myapp.py包含:
from run import app
@app.route('/hello')
def show_conf2():
return "Hello, world!"
run.py包含:
from flask import Flask
from gevent.pywsgi import WSGIServer
import myapp
@app.route('/')
def index():
return 'Home route.'
app = Flask(__name__)
http_server = WSGIServer(('', 5000), app)
http_server.serve_forever()
答案 0 :(得分:1)
您已声明Flask
的两个实例,一个在__init__.py
中,另一个在run.py
中。
Flask官方文档提供了有关how to breakdown a larger application in multiple modules的教程。
我已经更新了您的代码,文件名和文件夹结构。
文件夹结构:
├── application
│ ├── __init__.py
│ └── views.py
├── requirements.txt
└── run_application.py
run_application.py
:
from flask import Flask
from gevent.pywsgi import WSGIServer
from application import app
http_server = WSGIServer(('', 5000), app)
http_server.serve_forever()
application/__init__.py
:
from flask import Flask
app = Flask(__name__)
import application.views
application/views.py
:
from application import app
@app.route('/')
def index():
return 'Home route.'
@app.route('/hello')
def hello():
return 'Hello World!'
requirements.txt
:
Click==7.0
Flask==1.0.2
gevent==1.4.0
greenlet==0.4.15
itsdangerous==1.1.0
Jinja2==2.10.1
MarkupSafe==1.1.1
Werkzeug==0.15.2
运行命令:
python run_application.py
输出:
http://localhost:5000/
http://localhost:5000/hello
根据Flask documentation on Blueprints
Flask使用蓝图的概念来制作应用程序组件 并支持应用程序内或跨应用程序的通用模式 应用程序。
更新了代码以方便blueprints
。
更新的目录结构:
├── application1
│ ├── __init__.py
│ └── routes.py
├── application2
│ ├── __init__.py
│ └── routes.py
├── apps.py
└── requirements.txt
apps.py
:
from flask import Flask
from gevent.pywsgi import WSGIServer
from application1.routes import application1_blueprint
from application2.routes import application2_blueprint
app = Flask(__name__)
app.register_blueprint(application1_blueprint)
app.register_blueprint(application2_blueprint)
http_server = WSGIServer(('', 5000), app)
http_server.serve_forever()
application1/__init__.py
:空白文件
application1/routes.py
:
from flask import Blueprint
application1_blueprint = Blueprint('application1', __name__)
@application1_blueprint.route('/app1')
def application1_index():
return 'Home route for application1'
@application1_blueprint.route('/hello1')
def hello1():
return 'Hello World from application1!'
application2/__init__.py
:空白文件
application2/routes.py
:
from flask import Blueprint
application2_blueprint = Blueprint('application2', __name__)
@application2_blueprint.route('/app2')
def application2_index():
return 'Home route for application2'
@application2_blueprint.route('/hello2')
def hello2():
return 'Hello World from application2!'
输出:
来自/app1
的 application1
路线:
/app2
的 application2
路线:
答案 1 :(得分:0)
在您的代码中,我想您在flask应用程序中执行了run.py
。在这种情况下,您的应用程序不会定义任何路由规则。只需修改您的代码并将其放入单个文件中,它将是可行的
from flask import Flask
from gevent.pywsgi import WSGIServer
#import myapp
app = Flask(__name__)
@app.route('/hello')
def show_conf2():
return "Hello, world!"
http_server = WSGIServer(('', 5000), app)
http_server.serve_forever()