flask-路转换器

Posted 2020-12-27 zkkysqs

from flask import Flask, render_template
from werkzeug.routing import BaseConverter # 配置regex路由转换器

# 配置regex路由转换器类
class RegexConvert(BaseConverter):
    def __init__(self, url_map, *items):
        super(RegexConvert, self).__init__(url_map)
        self.regex = items[0]


app = Flask(__name__)
app.url_map.converters[‘regex‘] = RegexConvert


# 可以定义多个路由地址指向同一个url
@app.route(‘/hello/‘)
@app.route(‘/‘)
def hello_world():
    return render_template(‘index.html‘, title=‘hello flask!‘)


@app.route(‘/test/‘)
def test():
    return ‘test‘


# 4种路由转换器，前三种不用配置
"""
1、int   e.g:<int:id>
2、float e.g:<float:id>
3、path  e.g:/user/name/id
4、regex e.g:<regex("[a-z]{3}"):username>
"""
@app.route(‘/user1/<username>‘)
def user1(username):
    return ‘User: %s‘ % username


# 路由转换器int(整数)、float(小数)
@app.route(‘/user2/<float:user_id>‘)
def user2(user_id):
    return ‘User %s‘ % user_id


# 路由转换器regex
@app.route(‘/user3/<regex("[a-z]{3}"):user_id>‘)
def user3(user_id):
    return ‘User %s‘ % user_id


if __name__ == ‘__main__‘:
    # app.run()
    # 调试模式
    app.run(debug=True)