AlamofireObjectMapper

        通常网络请求返回的是JSON数据，使用ObjectMapper可以让JSON数据直接转化为对象，而使用Alamofire进行网络请求时，使用AlamofireObjectMapper可以直接返回对象，更加简洁。

Podfile文件内容为如下：

source'https://github.com/CocoaPods/Specs.git'

platform:ios,'9.0'

use_frameworks!

target'Web'do

pod'AlamofireObjectMapper','~> 3.0'

end

xcodeproj'Desktop/Web/Web.xcodeproj'

target后面为工程名，最后一行为工程路径(这里的Web是我的工程名)

额外操作：

Target->工程名->Build Settings->Search Paths->User Header Search Paths处添加AlamofireObjectMapper所在的目录：

最后在你需要用到AlamofireObjectMapper的类中加上：

importAlamofireObjectMapper

---

创建 Mappable 对象

{

"args":{},

"headers":{    

"Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",    

"Accept-Encoding":"gzip, deflate, br",

 "Accept-Language":"zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3", 

 "Cache-Control":"max-age=0",    

 "Host":"httpbin.org",    

 "User-Agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:46.0) Gecko/20100101 Firefox/46.0"

},

"origin":"202.115.52.218",

"url":"https://httpbin.org/get"

}

         根据该JSON的数据格式创建以下两个Mapper类分别对应整个字典和key值为“header”的字典。将JSON中的数据与对象中的数据一一建立转化关系。  

import ObjectMapper

class ResponseHeader: Mappable {

var accept : String?

var acceptEncoding : String?

var acceptLanguage : String?

var cacheControl : String?

var host : String?

var userAgent : String?

required init?(_ map: Map) {

}

//映射heades字典中的所有键值

func mapping(map: Map) {

accept <- map["Accept"]

acceptEncoding <- map["Accept-Encoding"]

acceptLanguage <- map["Accept-Language"]

cacheControl <- map["Cache-Control"]

host <- map["Host"]

userAgent <- map["User-Agent"]

}

}

import Foundation

import ObjectMapper

class MyResponse: Mappable {

var args : NSDictionary?

var headers : ResponseHeader?

var origin : String?

var url : String?

required init?(_ map: Map) {

}

//映射字典中的所有键值

func mapping(map: Map) {

args <- map["args"]

headers <- map["headers"]

origin <- map["origin"]

url <- map["url"]

}

}

用Alamofire获取对象

webRequst() { let url = "https://httpbin.org/get" //注意返回的类型为Alamofire.request(.GET, url).responseObject { (response: Response) in

let myResponse = response.result.value

print(myResponse?.url)

if let header = myResponse?.headers{

print(header.userAgent)

}

}

}

打印内容：

Optional("https://httpbin.org/get")

Optional("Web/com.applelab.Web (1; OS Version 9.3 (Build 13E230))")

Alamofire的使用：[快速学会Swift第三方库] Alamofire篇

ObjectMapper在非Alamofire请求下的使用：GitHub-ObjectMapper主页