解决方法
获取格式化的JSON字符串.
解决方案是从JSON字符串创建JSON对象,
然后使用.PrettyPrinted选项将JSON对象转换回JSON String.
代码是
let jsonString = "[{\"person\": {\"name\":\"Dani\",\"age\":\"24\"}},{\"person\": {\"name\":\"ray\",\"age\":\"70\"}}]"
var error: NSError?
//1. convert string to NSData
let jsonData = jsonString.dataUsingEncoding(NSUTF8StringEncoding)!
//2. convert JSON data to JSON object
let jsonObject:AnyObject = NSJSONSerialization.JSONObjectWithData(jsonData,options: nil,error: &error)!
//3. convert back to JSON data by setting .PrettyPrinted option
let prettyJsonData = NSJSONSerialization.dataWithJSONObject(jsonObject,options: .PrettyPrinted,error: &error)!
//4. convert NSData back to NSString (use NSString init for convenience),later you can convert to String.
let prettyPrintedJson = NSString(data: prettyJsonData,encoding: NSUTF8StringEncoding)!
//print the result
println("\(prettyPrintedJson)")
结果将如下所示
