Alamofire

print(Alamofire.request("https://www.baidu.com"))
        Alamofire.request("https://httpbin.org/get", parameters: ["foo": "bar"])
        Alamofire.request("https://httpbin.org/get", parameters: ["foo": "bar"])
            .response { (response) in
                if let data = response.data, let utf8Text = String(data: data, encoding: .utf8) {
                    print("Data: \(utf8Text)")
                }
        }
            .responseJSON { response in //使用responseJSON 方法的话，JSON数据会被自动转化为 Dictionary或Array
                print(response.request)  // original URL request
                print(response.response) // URL response
                print(response.data)     // server data
                print(response.result)   // result of response serialization
                print(response.result.isSuccess)
                debugPrint(response.result.isSuccess)
                if let JSON = response.result.value {
                    print("JSON: \(JSON)") //具体如何解析json内容可看下方“响应处理”部分
                }
        }
        /*
        除了上面样例使用的responseJSON（处理json类型的返回结果）外，Alamofire还提供了许多其他类型的响应处理方法：
        response()
        responseData()
        responseString(encoding: NSStringEncoding)
        responseJSON(options: NSJSONReadingOptions)
        responsePropertyList(options: NSPropertyListReadOptions)
        */

http://www.hangge.com/blog/cache/detail_970.html

SwiftyJSON

 //SwiftyJSON
        let jsonStr = "[{\"name\": \"hangge\", \"age\": 100, \"phones\": [{\"name\": \"公司\",\"number\": \"123456\"}, {\"name\": \"家庭\",\"number\": \"001\"}]}, {\"name\": \"big boss\",\"age\": 1,\"phones\": [{ \"name\": \"公司\",\"number\": \"111111\"}]}]"
        
        let jsonData = jsonStr.data(using: String.Encoding.utf8, allowLossyConversion: false)
        //print("jsonData======\(jsonData)")

         let data11 = JSON(parseJSON: jsonData)
        print("data11======\(data11)")

        let json = try! JSON(data: jsonData!)
        print(json)
        if let number = json[0]["phones"][0]["number"].string {
            // 找到电话号码
            print("第一个联系人的第一个电话号码：",number)
        }

// MARK: 字典转字符串
   func dictionaryToString(dict:[String:AnyObject]) -> String{
        var result:String = ""
        do {
            let jsonData = try JSONSerialization.data(withJSONObject: dict, options: JSONSerialization.WritingOptions.init(rawValue: 0))
            if let JSONString = String(data: jsonData, encoding: String.Encoding.utf8){
                result = JSONString
            }
        }catch{
            result = ""
        }
        return result
    }

SwiftyJSON+Alamofire

 //SwiftyJSON+Alamofire
        let url = URL(string: "http://www.hangge.com/getJsonData.php")
        Alamofire.request(url!).validate().responseJSON { (response) in
            switch response.result.isSuccess{
            case true :
                if let value = response.result.value{
                    let json = JSON(value)
                    if let number = json[0]["phones"][0]["number"].string {
                        // 找到电话号码
                        print("第一个联系人的第一个电话号码：",number)
                    }
                }
            case false :
                print(response.result.error)
            }

http://www.hangge.com/blog/cache/detail_968.html