Json 用swift遍历字典
我是swift新手,尝试调用生成JSON数据的web服务。其结构如下:Json 用swift遍历字典,json,swift,nsdictionary,xcode6.1,Json,Swift,Nsdictionary,Xcode6.1,我是swift新手,尝试调用生成JSON数据的web服务。其结构如下: { temp : [ { key1:value1 key2:value2 key3:value3 } { key1:value1 key2:value2 key3:value3 } { ke
{
temp : [
{
key1:value1
key2:value2
key3:value3
}
{
key1:value1
key2:value2
key3:value3
}
{
key1:value1
key2:value2
key3:value3
}
]
}
我能够得到结果JSON。但是我怎样才能浏览这本词典呢。我想显示所有字典中的值2
任何帮助都将不胜感激
提前感谢像这样:
let dictArray:[[String:String]] = [["k1":"v1" ,"k2":"v2", "k3":"v3"], ["k1":"v1" ,"k2":"v2", "k3":"v3"]]
for dict in dictArray {
for (key, val) in dict {
if val == "v2" {
println(key)
}
}
}
我猜您更想获取密钥的值,但您的问题有点误导。想象一下这是我的本地json文件: Json文件:
{
"temp" : [
{
"key1": "value1",
"key2": "value2",
"key3": "value3"
},
{
"key1": "value1",
"key2": "value2",
"key3": "value3"
},
{
"key1": "value1",
"key2": "value2",
"key3": "value3"
}
]
}
解析JSON并打印“key2”值的代码
一些有用的链接:
祝你好运我的完整json存储在一个变量中。那么,我怎样才能得到完整的临时密钥数组呢。正如在您的示例中一样,我不知道如何根据您的问题声明变量。也许你应该修改一下。我会使用一个JSON库来支持Swift。请尝试快速JSON:
var error: NSError?
// get json data from local json file
let jsonFilePath = NSBundle.mainBundle().pathForResource("MyFile", ofType: "json")!
let jsonData = NSData(contentsOfFile: jsonFilePath)!
let jsonObjects: AnyObject! = NSJSONSerialization.JSONObjectWithData(jsonData, options: NSJSONReadingOptions.MutableContainers, error: &error)
let items: NSArray! = jsonObjects["temp"] as? NSArray
for index in 0...items.count - 1 {
let item = items[index] as NSDictionary
println(item["key2"]!);
}