Flask 路由

Flask的添加路由的两种方式

Flask 的 路由添加的本质

1. decorator= app.route(‘/index’, methods=[‘POST’, ‘GET’])
2. @decorator
   2.1. decorator(index)

Flask 添加路由的两种方法

1. # add urls functions_01
   @app.route('/index', methods=['POST', 'GET'])
   def hello_world():
    return 'Hello World!'

1. ```python def order(): return “order”

add urls functions_02

app.add_url_rule(‘/‘, methods=[‘POST’, “GET”])

所有的代码如下
```python
from flask import Flask, render_template, redirect
app = Flask(__name__)
"""
1. decorator= app.route('/index', methods=['POST', 'GET'])
2. @decorator
    2.1. decorator(index)
"""
# add urls functions_01
@app.route('/index', methods=['POST', 'GET'])
def hello_world():
    return 'Hello World!'
def order():
    return "order"
# add urls functions_02
app.add_url_rule('/', methods=['POST', "GET"])
if __name__ == '__main__':
    app.run()

Flask 反向生成url

from flask import Flask,url_for
app=Flask(__name__)
@app.route('/hello',endpoint='b')  #endpoint为生成别名,一般不写的情况下是路由名
def index():
    a=url_for('b')  #调用了url_for
    print(a)
    return 'hello_world'
if __name__ == '__main__':
    app.run()

如下图就打印出了/hello路径

假如不加入别名，那么就直接使用函数名字

from flask import Flask,url_for
app=Flask(__name__)
@app.route('/hello')
def index():
    a=url_for('index')  #这里调用url_for里面的参数为函数名
    print(a)
    return 'hello_world'
if __name__ == '__main__':
    app.run()

打印出/hello路径

Flask 获取子域名的路由