Question

这是我的JSON数据：

let jsonArray = [
    "array": [12.34, 56.78],
    "users": [
        [
            "id": 987654,
            "info": [
                "name": "jack",
                "email": "jack@gmail.com"
            ],
            "feeds": [98, 23443, 213239, 23232]
        ],
        [
            "id": 654321,
            "info": [
                "name": "jeffgukang",
                "email": "jeffgukang@gmail.com"
            ],
            "feeds": [12345, 56789, 12423, 12412]
        ]
    ]
]

我的代码用于阅读＆＃34;用户＆＃34;和＆＃34; id＆＃34;

let idArr = NSMutableArray()
let infoArr = NSMutableArray()
let usersArr = NSMutableArray()

for index in 0...1 { 
    infoArr.addObjects(from: (jsonArray["users"]![index] as! [String: Any])["info"] as! [Any]) 
} 
print("info arr : (infoArr)") 
for index in 0...1 { 
    idArr.addObjects(from: (jsonArray["users"]![index] as! [String: Any])["id"] as! [Any]) 
} 
print("id arr : (idArr)")

但我收到的错误如下：

无法转换类型＆＃39; Swift._SwiftDeferredNSDictionary＆lt; Swift.String，Swift.String＆gt;＆＃39; （0x1079b8420）到了NSArray＆＃39; （0x106332008）

无法转换类型＆＃39; Swift.Dictionary＆lt; Swift.String，Swift.String＆gt;＆＃39; （0x1105ac550）到＆＃39; Swift.Array＆lt; Any＆gt;＆＃39; （0x1105abf30）。

无法转换类型的价值＆＃39; Swift.Int＆＃39; （0x11149f8c0）到＆＃39; Swift.Array＆lt; Any＆gt;＆＃39; （0x1114c4f30）。

Answer 1

1-改变这个

["info"] as! [Any]

到

["info"] as! [String:Any]

2-和这个

["id"] as! [Any]

到

["id"] as! NSNumber

//

var idArr = [NSNumber]()
var infoArr = [[String:Any]]()

for index in 0...1 { 
 infoArr.append((jsonArray["users"]![index] as! [String: Any])["info"] as! [String:Any]) 
} 
print("info arr : (infoArr)") 
for index in 0...1 { 
idArr.append((jsonArray["users"]![index] as! [String: Any])["id"] as! NSNumber) 
}

Answer 2

**Check correct code**


  var idArr = [Int]()
    var infoArr = [[String:Any]]()
    let usersArr = [Any]()

    for index in 0...1 {
        infoArr.append((jsonArray["users"]![index] as! [String: Any])["info"] as! [String:Any])
    }
    print("info arr : \(infoArr)")
    for index in 0...1 {
        idArr.append((jsonArray["users"]![index] as! [String: Any])["id"] as! Int)
    }
    print("id arr : \(idArr)")

Answer 3

试试这个：

var infoArr: [Any] = []
var idArr: [Any] = []

for i in 0..<(jsonArray["users"]!).count {
  infoArr.append((jsonArray["users"]![i] as! [String: Any])["info"])
  idArr.append((jsonArray["users"]![i] as! [String: Any])["id"])
}

从JSON响应中读取对象并保存在可变数组中

3 个答案: