[英]Can't Parse Array JSON Decoder Swift 4
I can't get the JSON data of the link it always get the error.我无法获取链接的 JSON 数据,它总是出现错误。
"Expected to decode Array<Any> but found a dictionary instead."
Thank you.谢谢你。
My JSON我的 JSON
{
server_response: [
{
id: "1",
magazine_title: "Volume 1 Issue 1",
mobile_link: "",
magazine_img: "https://www.pcbuyersguide.com.ph/wp-content/uploads/magazine_cover/pcbg.png",
mobile_zip: ""
},
{
id: "2",
magazine_title: "Volume 1 Issue 2",
mobile_link: "",
magazine_img: "https://www.pcbuyersguide.com.ph/wp-content/uploads/magazine_cover/pcbg.png",
mobile_zip: ""
},
{
id: "3",
magazine_title: "Volume 1 Issue 4",
mobile_link: "",
magazine_img: "https://www.pcbuyersguide.com.ph/wp-content/uploads/magazine_cover/pcbg.png",
mobile_zip: ""
},
{
id: "4",
magazine_title: "Volume 2 Issue 1",
mobile_link: "",
magazine_img: "https://www.pcbuyersguide.com.ph/wp-content/uploads/magazine_cover/pcbg.png",
mobile_zip: ""
}]
My Struct我的结构
struct Root: Decodable{
var server_response: [server_details]
}
struct server_details: Decodable{
var magazine_title : String
var magazine_img : String
var mobile_link: String
}
My Fetch from data server function我的从数据服务器提取功能
// FETCH MAGAZINE
func fetchDatafromServer(){
guard let url = URL(string: "https://www.pcbuyersguide.com.ph/wp-content/mobileapp/pcbg_magazine_data.php") else {return}
URLSession.shared.dataTask(with: url) { (data, res, err) in
guard let data = data else {return}
do{
let articles = try JSONDecoder().decode([Root].self, from: data)
for info in articles {
self.magazine_title.append(info.server_response[1].magazine_title)
}
DispatchQueue.main.async {
self.collectionView?.reloadData()
}
}
catch let jsonErr{
print(jsonErr)
}
}.resume()
}
You are saying decode([Root].self...
, as if your JSON were an array of Root. But it is not an array of Root. It is a Root. Say decode(Root.self
.你说的是
decode([Root].self...
,就好像你的 JSON 是一个 Root 数组。但它不是一个 Root 数组。它是一个 Root。说decode(Root.self
。
Then change然后改变
for info in articles
To到
for info in articles.server_response
That is the array.那就是数组。
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