嗨，我需要使用查询参数构造 url 请求，我有一个带有键和值的嵌套对象，如下所示
"user": {
"first_name": "Srini",
"last_name": "Raman",
"gender": "male",
"dob": "1992-08-02",
"address_attributes": {
"city": "San Diego",
"state": "CA",
"zip": 92127,
"country": "USA",
"latitude": 37.257009,
"longitude": -120.050767
}
}
我需要获得一个查询参数，如
user[first_name]=Srini&user[last_name]=Raman&user[address_attributes][city]=San Diego&user[address_attributes][state]=CA