json 读写 swift

//
// ViewController.swift
// json读写
//
// Created by mac on 15/7/14.
// Copyright (c) 2015年 fangyuhao. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    var json: AnyObject? = NSJSONSerialization.JSONObjectWithData(NSData(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("obj", ofType: "json")!)!)!, options: NSJSONReadingOptions.allZeros, error: nil)

    if let lang: AnyObject = json?.objectForKey("language") {
        println(lang)
    }
    //生成
    var dict = ["name":"jikexueyuan","age":1]
    var jsonData = NSJSONSerialization.dataWithJSONObject(dict, options: NSJSONWritingOptions.allZeros, error: nil)
    if let str = NSString(data: jsonData!, encoding: NSUTF8StringEncoding){
        println(str)
    }

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

}