flask鑷畾涔夎浆鎹㈠櫒

Posted 2021-01-03

鏍囩锛?a href='http://www.mamicode.com/so/1/converter' title='converter'>converter   __init__   div   ini   __name__   integer   鍏冲績   浣跨敤   缁ф壙   

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flask 绯荤粺鑷甫鐨勮浆鎹㈠櫒鏈?br>

DEFAULT_CONVERTERS = {
    鈥榙efault鈥?          UnicodeConverter,
    鈥榮tring鈥?           UnicodeConverter,
    鈥榓ny鈥?              AnyConverter,
    鈥榩ath鈥?             PathConverter,
    鈥榠nt鈥?              IntegerConverter,
    鈥榝loat鈥?            FloatConverter,
    鈥榰uid鈥?             UUIDConverter,
}

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瀵煎叆杞崲鍣ㄥ熀绫伙紙BaseConverter锛?Flask涓墍鏈夌殑璺敱鐨勫尮閰嶈鍒欙紝閮芥槸浣跨敤杞崲鍣ㄥ疄鐜?br>鑷畾涔夎浆鎹㈠櫒缁ф壙浜庤浆鎹㈠櫒鍩虹被
娣诲姞杞崲鍣ㄥ埌榛樿鐨勮浆鎹㈠櫒瀛楀吀涓?br>浣跨敤鑷畾涔夎浆鎹㈠櫒瀹炵幇鑷畾涔夊尮閰嶈鍒?/div>

鏃㈢劧鑷畾涔夎浆鎹㈠櫒闇€瑕佺户鎵胯浆鎹㈠櫒鍩虹被锛圔aseConverter锛夐偅涔堟垜浠湅涓€涓嬭浆鎹㈠櫒鍩虹被鐨勬簮鐮併€?

class BaseConverter(object):

    """Base class for all converters."""
    regex = 鈥榌^/]+鈥?    weight = 100

    def __init__(self, map):
        self.map = map

    def to_python(self, value):
        return value

    def to_url(self, value):
        return url_quote(value, charset=self.map.charset)

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鑷畾涔夎浆鎹㈠櫒浠ｇ爜

from flask import Flask
#瀵煎叆鍩虹被杞崲鍣?from werkzeug.routing import BaseConverter

app = Flask(__name__)

# 1.鑷畾涔夌被,缁ф壙鑷狟aseConverter
class MyRegexConverter(BaseConverter):

    # 2.缂栧啓鍒濆鍖栨柟娉? init鏂规硶, 鎺ユ敹涓や釜鍙傛暟, url_map, regex, 骞跺垵濮嬪寲鐖剁被绌洪棿鍜屽瓙绫荤┖闂?    def __init__(self,url_map,regex):
        super(MyRegexConverter, self).__init__(url_map)
        self.regex = regex

# 3.灏嗚嚜瀹氫箟杞崲鍣ㄧ被,娣诲姞鍒伴粯璁ょ殑杞崲鍒楄〃涓?app.url_map.converters[鈥榬e鈥榏 = MyRegexConverter

#浣跨敤鑷畾涔夎浆鎹㈠櫒
#鎺ユ敹3浣嶆暣鏁?@app.route(鈥?<re("d{3}"):num>鈥?
def hello_world(num):

    print("num = %s"%num)

    return "the num is %s"%num

#鎺ユ敹涓€涓墜鏈哄彿
@app.route(鈥?<re("1[345678]d{9}"):mobile>鈥?
def get_phone_number(mobile):

    return "the mobile is %s"%mobile

if __name__ == 鈥榑_main__鈥?
    app.run()

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鑷畾涔夎浆鎹㈠櫒鍖归厤閿欒鑷姩璺宠浆缃戠珯棣栭〉

from flask import Flask
from flask import redirect
from flask import url_for
from werkzeug.routing import BaseConverter

app = Flask(__name__)

class MyConverter(BaseConverter):
    def __init__(self,url_map,regex):
        super(MyConverter, self).__init__(url_map)
        self.regex = regex
    def to_python(self, value):  # 鍖归厤鎴愬姛鍚庤璋冪敤锛屽彲浠ュ鍖归厤鍒扮殑鍙傛暟杩涜澶勭悊锛屾瘮濡傝浆鎹㈠尮閰嶅埌鐨勬暟鎹殑绫诲瀷锛屽湪姝ｅ垯鍖归厤瀹屾垚涔嬪悗锛岃皟鐢ㄨ鍥惧嚱鏁颁箣鍓嶏紝鍙互瀵规暟鎹繘琛屾渶鍚庣殑澶勭悊
        return value
    def to_url(self, value):  # 鍦ㄦ鍒欏尮閰嶄箣鍓嶈皟鐢ㄦ墽琛岋紝骞朵紶鍏ュ弬鏁帮紝璋冪敤瀹屾垚涔嬪悗鎵嶅紑濮嬬湡姝ｇ殑璺敱鍖归厤锛屼笉鍏冲績鏄惁鍖归厤鎴愬姛锛屽彲浠ラ€氳繃姝ゅ嚱鏁颁慨姝ｈ浼犲叆璺敱涓殑鍙傛暟锛屾柟渚挎洿濂界殑姝ｅ垯鍖归厤
        return value

app.url_map.converters[鈥榬e鈥榏 = MyConverter

@app.route(鈥?<re("d{3}"):num>鈥?
def index(num):
    return num
@app.errorhandler(404)
def my_error(e):
    return redirect(url_for(鈥榡ia鈥?)
@app.route(鈥?jia鈥?
def jia():
    return 鈥榡ai鈥?
if __name__ == 鈥榑_main__鈥?
    app.run(debug=True)

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