[英]How to get specific json value - python
我正在将我的代码从 java 迁移到 python,但我仍然在理解如何使用 python 获取 json 中的特定路径时遇到一些困难。
这是我的 Java 代码,它返回一个accountsId
列表。
public static List < String > v02_JSON_counterparties(String date) {
baseURI = "https://cdwp/cdw";
String counterparties =
given()
.auth().basic(getJiraUser(), getJiraPass())
.param("limit", "1000000")
.param("count", "false")
.when()
.get("/counterparties/" + date).body().asString();
List < String > accountId = extract_accountId(counterparties);
return accountId;
}
public static List < String > extract_accountId(String res) {
List < String > ids = JsonPath.read(res, "$..identifier[?(@.accountIdType == 'ACCOUNTID')].accountId");
return ids;
}
这是我获取accountID
的 json 结构。
{
'organisationId': {
'#value': 'MHI'
},
'accountName': 'LAZARD AM DEUT AC LF1632',
'identifiers': {
'accountId': 'LAZDLF1632',
'customerId': 'LAZAMDEUSG',
'blockAccountCode': 'LAZDEUBDBL',
'bic': 'LAMDDEF1XXX',
'identifier': [{
'accountId': 'MHI',
'accountIdType': 'REVNCNTR'
}, {
'accountId': 'LAZDLF1632',
'accountIdType': 'ACCOUNTID'
}, {
'accountId': 'LAZAMDEUSG',
'accountIdType': 'MHICUSTID'
}, {
'accountId': 'LAZDEUBDBL',
'accountIdType': 'BLOCKACCOUNT'
}, {
'accountId': 'LAMDDEF1XXX',
'accountIdType': 'ACCOUNTBIC'
}, {
'accountId': 'LAZDLF1632',
'accountIdType': 'GLOBEOP'
}]
},
'isBlocAccount': 'N',
'accountStatus': 'COMPLETE',
'products': {
'productType': [{
'productLineName': 'CASH',
'productTypeId': 'PRODMHI1',
'productTypeName': 'Bond, Equity,Convertible Bond',
'cleared': 'N',
'bilateral': 'N',
'limitInstructions': {
'limitInstruction': [{
'limitAmount': '0',
'limitCurrency': 'GBP',
'limitType': 'PEAEXPLI',
'limitTypeName': 'Cash-Peak Exposure Limit'
}]
}
}]
},
'etc': {
'addressGeneral': 'LZFLUS33XXX',
'addressAccount': 'LF1632',
'tradingLevel': 'B'
},
'clientBroker': 'C',
'costCentre': 'Credit Sales',
'clientLevel': 'SUBAC',
'accountCreationDate': '2016-10-19T00:00:00.000Z',
'accountOpeningDate': '2016-10-19T00:00:00.000Z'
}
这是我在 Python 中的代码
import json, requests, urllib.parse, re
from pandas.io.parsers import read_csv
import pandas as pd
from termcolor import colored
import numpy as np
from glob import glob
import os
# Set Up
dateinplay = "2021-09-27"
#Get accountId
cdwCounterparties = (
f"http://cdwu/cdw/counterparties/?limit=1000000?yyyy-mm-dd={dateinplay}"
)
r = json.loads(requests.get(cdwCounterparties).text)
account_ids = [i['accountId'] for i in data['identifiers']['identifier']if i['accountIdType']=="ACCOUNTID"]
当我尝试获取 accountId 时出现此错误:
Traceback (most recent call last):
File "h:\DESKTOP\test_check\checkCounterpartie.py", line 54, in <module>
account_ids = [i['accountId'] for i in data['identifiers']['identifier']if i['accountIdType']=="ACCOUNTID"]
TypeError: list indices must be integers or slices, not str
accs = {
"identifiers": {
...
account_id_list = []
for acc in accs.get("identifiers", {}).get("identifier", []):
account_id_list.append(acc.get("accountId", ""))
创建一个名为 account_id_list 的列表,它是
['MHI', 'DKEPBNPGIV', 'DKEPLLP SG', 'DAVKEMEQBL', '401821', 'DKEPGB21XXX', 'DKEPBNPGIV', 'DKPARTNR']
假设您将字典(json 结构)存储在变量x
,获取所有accountIDs
类似于:
account_ids = [i['accountId'] for i in x['identifiers']['identifier']]
如果我正确地回答了您的问题,您需要 accountistype 为“ACCOUNTID”的所有 ID。
这给你:
account_ids = [i['accountId'] for i in data['identifiers']['identifier']if i['accountIdType']=="ACCOUNTID"]
我要感谢大家的回答。 它对我找到解决问题的方法有很大帮助。 下面是我解决它的方法。
listAccountId = []
cdwCounterparties = (
f"http://cdwu/cdw/counterparties/?limit=100000?yyyy-mm-dd={dateinplay}"
)
r = requests.get(cdwCounterparties).json()
jsonpath_expression = parse("$..accounts.account[*].identifiers.identifier[*]")
for match in jsonpath_expression.find(r):
# print(f'match id: {match.value}')
thisdict = match.value
if thisdict["accountIdType"] == "ACCOUNTID":
# print(thisdict["accountId"])
listAccountId.append(thisdict["accountId"])
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