Swift利用AFN实现封装网络请求详解

cd 项目名称

pod init

open Podfile

# 设置支持最低平台
platform :ios,'8.0'

target 'TestSwiftMixAFN' do
 # 如果是Swift项目,需添加"use_frameworks!"
 use_frameworks!
pod "AFNetworking"

end

pod install

import AFNetworking

class xmsessionManager: AFhttpSessionManager {
 // ...
}

/// 创建网络请求单例
static let shared: xmsessionManager = xmsessionManager()

----------------------------------------------------------------
/// 如果需要设置请求的属性,可在闭包中添加
/// 在第一次访问时，执行闭包，并且将结果保存在 shared 常量中
 static let shared1: xmsessionManager = {

  // 实例化对象
  let manager = xmsessionManager()

  // 设置响应反序列化支持的数据类型
  manager.responseserializer.acceptableContentTypes?.insert("text/plain")

  // 返回对象
  return manager
 }()

/// 枚举-请求方法
///
/// - GET: GET
/// - POST: POST
enum XMhttpR_571_11845@ethod {
 case GET
 case POST
}

/// 封装网络请求方法
 ///
 /// - Parameters:
 /// - Method: GET/POST,默认是GET请求
 /// - URLString: 请求地址
 /// - parameters: 参数
 /// - completed: 结束回调
 func request(Method:XMhttpR_571_11845@ethod = .GET,URLString: String,parameters: [String: AnyObject]?,completed:@escaPing ((_ Json: AnyObject?,_ issuccess: Bool)->())) {

  /// 定义成功回调闭包
  let success = { (task: URLSessionDataTask,Json: Any?)->() in
   completed(Json as AnyObject?,truE)
  }

  /// 定义失败回调闭包
  let failure = {(task: URLSessionDataTask?,error: Error)->() in
   completed(nil,falsE)
  }

  /// 通过请求方法,执行不同的请求
  // 如果是 GET 请求
  if Method == .GET { // GET

   get(URLString,parameters: parameters,progress: nil,success: success,failure: failurE)

  } else { // POST

   post(URLString,failure: failurE)
  }
 }

///GET 请求
  xmsessionManager.shared.request(URLString: "http:xxx",parameters: nil,completed:{(Json: AnyObject?,issuccess: Bool)-> () in

   // 请求成功
   if issuccess {
    print(Json ?? "")
   } else {
    print("请求失败")
   }
  })


///POST 请求
  xmsessionManager.shared.request(URLString: "www.xxx.xxx",parameters: ["key":"value" as AnyObject],issuccess: Bool)-> () in
   // 请求成功
   if issuccess {
    print(Json ?? "")
   } else {
    print("请求失败")
   }
  })