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 AFNetworkingclass 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: POSTenum XMHTTPMethod { 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:XMHTTPMethod = .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, parameters: parameters, progress: nil, success: success, 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], completed:{(json: AnyObject?,isSuccess: Bool)-> () in   // 请求成功   if isSuccess {    print(json ?? "")   } else {    print("请求失败")   }  })