JavaScript客户端发送如下请求：

$.ajax({
    url: 'http://localhost:7973/test',type: 'GET',data: {'host': 'mike','guests': {'name': ['car','ball'],'age': [6,10,7]}},success: function(result){alert(result)},error: function(error){alert(error)}
});

使用龙卷风的Python服务器处理请求：

import tornado.ioloop
import tornado.web


class TestHandler(tornado.web.RequestHandler):
    def get(self):
        host = self.get_argument('host')
        print(host)
        guests = self.get_argument('guests')
        print(guests)


def make_app():
    return tornado.web.Application([
        (r'/test',TestHandler)
    ])


if __name__ == "__main__":
    app = make_app()
    port = 7973
    app.listen(port)
    print('-' * 100)
    print('server started,listening to ',port,'...\n')
    tornado.ioloop.IOLoop.current().start()

服务器端的输出如下.显然,“主机”参数已成功获得,但我不知道如何获取其值是复杂对象本身的参数(例如数组或字典).请向我解释这些数据结构之间的强制转换和转储及其字符串表示的机制吗？我读了tornado document,但找不到答案.

mike

WARNING:tornado.general:400 GET
/test?host=mike&guests%5Bname%5D%5B%5D=car&guests%5Bname%5D%5B%5D=ball&guests%5Bage%5D%5B%5D=6&guests%5Bage%5D%5B%5D=10&guests%5Bage%5D%5B%5D=7
(::1): Missing argument guests

WARNING:tornado.access:400 GET
/test?host=mike&guests%5Bname%5D%5B%5D=car&guests%5Bname%5D%5B%5D=ball&guests%5Bage%5D%5B%5D=6&guests%5Bage%5D%5B%5D=10&guests%5Bage%5D%5B%5D=7
(::1) 1.99ms