Question

在我的申请中，我需要找到以usd为基数的所有国家的货币汇率。我得到一个json作为包含汇率的输出.Below是json。

{
"disclaimer": "Exchange rates",
"license": "Data sourced from various providers",
"timestamp": 1361055609,
"base": "USD",
"rates": {
"AED": 3.672869,
"AFN": 51.769999,
"ALL": 104.798751,
"AMD": 406.549996,
"ANG": 1.7887,
"AOA": 95.946132,
"ARS": 5.009655,
"AUD": 0.969258,
"AWG": 1.789967,
"AZN": 0.7847,
"BAM": 1.465127,
"BBD": 2,
"BDT": 78.95455,
"BGN": 1.465315,
"BHD": 0.376979,
"BIF": 1573.6325,
"BMD": 1,
"BND": 1.235676,
"BOB": 6.984993,
"BRL": 1.963769,
....
}
}

现在我需要将这些费率提取到一个哈希映射中，其中货币代码为关键，汇率为value。如何在java中执行此操作。

Answer 1

刚试过这个：

Key = AED, Value = 3.672869
Key = AFN, Value = 51.769999
Key = ALL, Value = 104.798751
Key = AMD, Value = 406.549996
Key = ANG, Value = 1.7887
Key = AOA, Value = 95.946132
Key = ARS, Value = 5.009655
Key = AUD, Value = 0.969258
Key = AWG, Value = 1.789967
Key = AZN, Value = 0.7847
Key = BAM, Value = 1.465127
Key = BBD, Value = 2
Key = BDT, Value = 78.95455
Key = BGN, Value = 1.465315
Key = BHD, Value = 0.376979
Key = BIF, Value = 1573.6325
Key = BMD, Value = 1
Key = BND, Value = 1.235676
Key = BOB, Value = 6.984993
Key = BRL, Value = 1.963769

输出：

{{1}}

需要的图书馆：

https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-mapper-asl/1.9.13 https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-asl/1.9.13

Answer 2

使用Jackson库进行转换 - 这非常简单。有关如何操作的示例，请参阅this其他问题。

如何将货币汇率json提取到Hashmap

2 个答案: