使Flask的url支持正则表达式以及一个api小demo

from flask import Flask
from flask import jsonify
from flask import request
from werkzeug.routing import BaseConverter
app = Flask(__name__)


#重新定义url匹配规则
class RegexConverter(BaseConverter):
    def __init__(self, url, *args):
        self.url = url
        self.regex = args[0]
app.url_map.converters['regex'] = RegexConverter
#请求地址映射

@app.route('/index',methods=['POST'])
def test_post():
    #定义响应结果集
    resultMap = {}
    
    #获取post请求参数
    a = request.json['a']
    b = request.json['b']
    
    #如果参数必填就要加上
    if a and b:
        if a == b:
            resultMap['ret_code'] = 200
            resultMap['ret_info'] = '成功'
            #返回json格式的
            return jsonify(resultMap)
        else:
            resultMap['ret_code'] = 500
            resultMap['ret_info'] = '失败'
            return jsonify(resultMap)
    else:
        resultMap['ret_code'] = 500
        resultMap['ret_info'] = '缺少请求参数'
        return jsonify(resultMap)

#万能url可以接收所有进入这个服务的请求
@app.route('/<regex(r"[wW]*"):url>',methods=['GET'])
def test_get(url):
    resultMap = {}
    c = request.args.get('c')
    d = request.args.get('d')
    if c and d:
        if c != d:
            resultMap['ret_code'] = 200
            resultMap['ret_info'] = 'c和d不相等哟'
            return jsonify(resultMap)
        else:
            resultMap['ret_code'] = 500
            resultMap['ret_info'] = 'c和d相等啦啦啦啦啦'
            return jsonify(resultMap)       
    else:
        resultMap['ret_code'] = 500
        resultMap['ret_info'] = '缺少请求参数'
        return jsonify(resultMap)
if __name__ == '__main__':
    app.run(debug=True,port=505)