如何使用 linq 从这个 json 字符串中提取特定值
How to extract specific value from this json string using linq
谁能帮我从以下 json 字符串中提取 [downloads][csv][href] 的具体值?
{
"@context": "https://cdn.ons.gov.uk/assets/json-ld/context.json",
"alerts": [],
"collection_id": "cmdr",
"dimensions": [
various dimensions here
],
"downloads": {
"csv": {
"href": "https://download.beta.ons.gov.uk/downloads/datasets/regional-gdp-by-year/editions/time-series/versions/4.csv",
"size": "568021"
},
"csvw": {
"href": "ref",
"size": "1903"
},
"xls": {
"href": "ref",
"size": "80768"
}
},
"edition": "time-series",
"id": "5c",
"links": {
"dataset": {
"href": "ref",
"id": "regional-gdp-by-year"
},
"edition": {
"href": "ref",
"id": "time-series"
},
"self": {
"href": "ref"
}
},
"release_date": "2021",
"state": "published",
"usage_notes": [],
"version": 4
}
我正在使用的当前代码returns没有:
var labels = JObject.Parse(observationsJson)["downloads"];
var results = labels.Select(data => new
{
label = (string)data["href"]
});
foreach (var item in results)
{
csvDownloadAddress = item.label;
}
如果有其他方法而不是使用 linq,那么我愿意接受建议。
抱歉,如果这是一个愚蠢的任务,我在 linq 和 json 方面的经验非常有限。
谢谢你的帮助。
谁能帮我从以下 json 字符串中提取 [downloads][csv][href] 的具体值?
{
"@context": "https://cdn.ons.gov.uk/assets/json-ld/context.json",
"alerts": [],
"collection_id": "cmdr",
"dimensions": [
various dimensions here
],
"downloads": {
"csv": {
"href": "https://download.beta.ons.gov.uk/downloads/datasets/regional-gdp-by-year/editions/time-series/versions/4.csv",
"size": "568021"
},
"csvw": {
"href": "ref",
"size": "1903"
},
"xls": {
"href": "ref",
"size": "80768"
}
},
"edition": "time-series",
"id": "5c",
"links": {
"dataset": {
"href": "ref",
"id": "regional-gdp-by-year"
},
"edition": {
"href": "ref",
"id": "time-series"
},
"self": {
"href": "ref"
}
},
"release_date": "2021",
"state": "published",
"usage_notes": [],
"version": 4
}
我正在使用的当前代码returns没有:
var labels = JObject.Parse(observationsJson)["downloads"];
var results = labels.Select(data => new
{
label = (string)data["href"]
});
foreach (var item in results)
{
csvDownloadAddress = item.label;
}
如果有其他方法而不是使用 linq,那么我愿意接受建议。 抱歉,如果这是一个愚蠢的任务,我在 linq 和 json 方面的经验非常有限。 谢谢你的帮助。