Question

我调用了一个返回以下JSON的API：

{
"trades": [
    {
        "stopLoss": 154.79, 
        "takeProfit": 151.79, 
        "price": 153.784, 
        "side": "sell", 
        "trailingStop": 0, 
        "instrument": "GBP_JPY", 
        "time": "2016-06-21T18:20:24.000000Z", 
        "units": 25, 
        "id": 10297636517, 
        "trailingAmount": 0
    }
]
}

我在解析时遇到问题，所以我只返回＆＃34; id＆＃34;和＃34;价格＆＃34;。由于我还不了解的原因，我可以在['trades']之后添加tradeId=response，它会按预期深入到此处。但我不能把它简化为只是＆＃34; id＆＃34;和＆＃34;价格＆＃34;。我怎样才能解析数据，json.dumps是最佳方法？在此先感谢您的帮助！

{
        "stopLoss": 154.79, 
        "takeProfit": 151.79, 
        "price": 153.784, 
        "side": "sell", 
        "trailingStop": 0, 
        "instrument": "GBP_JPY", 
        "time": "2016-06-21T18:20:24.000000Z", 
        "units": 25, 
        "id": 10297636517, 
        "trailingAmount": 0
    }

代码：

response = oanda.get_trades(account_id)

def transactions():
    while response:
        tradeId = response
        ids = tradeId
        line = json.dumps(ids, indent=4)
        print line
        return
print transactions()

Answer 1

您可以使用 json.loads（）来解析json。

import json
response = '{"trades": [{"stopLoss": 154.79, "takeProfit": 151.79, "price": 153.784, "side": "sell", "trailingStop": 0, "instrument": "GBP_JPY", "time": "2016-06-21T18:20:24.000000Z", "units": 25, "id": 10297636517, "trailingAmount": 0}]}'

def transactions():
    json_tree = json.loads(response)
    trade_list = json_tree['trades']
    trade = trade_list[0]
    return (trade['id'], trade['price'])

print transactions()

Answer 2

找出答案。我只是尝试['trades']['id']而不是 ['trades'][0]['id'] ..谢谢

解析json.dumps - Python

2 个答案: