swift Alamofire+ObjectMapper——swift(學習九)
阿新 • • 發佈：2018-12-31
Alamofire
Alamofire是目前為止我接觸的swift最好的第三方下載庫，它根本就不需要另外封裝，所有的下載方法都是class func。同時呢，它提供了很多種回撥的方法：
//最簡單下載
Alamofire.request(.GET, "https://httpbin.org/get")
//帶引數
Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"]).response { (request, response, data, error) in})
//URL轉碼
Alamofire.request 另外它的返回值有很多種，比如response、responseJSON、responseString等閉包。我自己最喜歡用的就是responseString。這裡呢，也普及一下responseString返回物件都有哪些屬性：
//response閉包,它包含返回的result與是否正確的bool狀態
print("response:- \(response)" 所以我們最終需要的就只是result.value。
而有時候我們是需要返回進度的東西，有一點需要注意的是進度閉包不是在主執行緒的，所以要使用進度的時候要把它放到主執行緒裡。
public func progress(closure: ((Int64, Int64, Int64) -> Void)? = nil) -> Self {}下載還有一個經常用到的就是時間控制了，這個東西很坑的一點就是網上很多加時間限制的方法是錯誤的。因為時間限制是加在URLSession上的confige上的。
把以上幾點綜合一下，我封裝了一個下載的函式：
/**下載
* host:是所有下載地址前面共有的域名地址，path:是請求地址,如果沒有host，則只需要穿入path就可以
* timeout:請求限制時長
* params:請求要帶的引數，這個可以用字典傳進來，也可以手動新增在path上,用&連線
* completeHandle:回撥閉包，返回的是一個JSONString
* progressHandle:進度閉包,返回一個實時進度，這個要在主執行緒使用進度
*/
class func handleRequest(host:String?=nil,path:String?=nil,timeout:NSTimeInterval? = 5,params:[String: AnyObject]? = nil,completeHandle:(JSONString: String?)->Void,progressHandle:((progress:NSInteger)->Void)?=nil,cache:Bool) {
if (host == nil)&&(path==nil) {
return
}
var url:String?
if host != nil {
url = String.init(format:"%@?%@",host!,path!)
}else{
url = String.init(format:"%@",path!)
}
let manager = Alamofire.Manager.sharedInstance
manager.session.configuration.timeoutIntervalForRequest = timeout!
manager.session.configuration.timeoutIntervalForResource = timeout!
manager.request(.GET, url!, parameters: params, encoding: ParameterEncoding.URL)
.progress { bytesRead, totalBytesRead, totalBytesExpectedToRead in
dispatch_async(dispatch_get_main_queue()) {
print("Total bytes read on main queue: \(totalBytesRead)")
print("Progress on main queue: \(Float(totalBytesRead) / Float(totalBytesExpectedToRead))")
}
}.responseString { (response) in
/*這裡的response返回的不單單是
*/
print("response:- \(response)")
print("request:-\(response.request)")
print("response:-\(response.response)")
print("data:-\(response.data)")
print("time:-\(response.timeline.totalDuration)")
switch response.result{
case .Success:
completeHandle(JSONString: response.result.value)
case .Failure(let error):
print(error)
let controller = UIAlertController.init(title: "request faile", message: nil, preferredStyle: UIAlertControllerStyle.Alert)
controller.addAction(UIAlertAction.init(title: "sure", style: UIAlertActionStyle.Cancel, handler: { (action) in
}))
UIApplication.sharedApplication().keyWindow?.rootViewController?.presentViewController(controller, animated: true, completion:nil)
}
}
}ObjectMapper
聊完下載，聊解析,也是我認為最簡單易用的解析庫了，使用起來很簡單：
//
// TodayNewModel.swift
// FCFTemplete
//
// Created by 馮才凡 on 16/6/17.
// Copyright © 2016年 fcf. All rights reserved.
//
/*
response:- SUCCESS: {
"status": 1,
"msg": "獲取資料成功",
"data": {
"count": 4915,
"results": [
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-16",
"newsId": "e4933aae499aa472deca09b20d39addd",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/b383a34a9861a976aed20ed9311accc0.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16732",
"newsNum": 0,
"newsSource": "伯樂線上",
"newsTitle": "史上比較用心的純程式碼實現 AutoLayout",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "7f221c0246",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-16",
"newsId": "0bca3c1214c24ff16e954f4eeb8ef2c5",
"newsImage": "http://cc.cocimg.com/api/uploads/160615/de1c4afd4212a4676d277ca2a36026e8.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16718",
"newsNum": 0,
"newsSource": "天狐部落格 投稿",
"newsTitle": "盤點：Xcode 8新特性",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "61fe963f6c",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-16",
"newsId": "1b0068df2cd12aca06a56b76442105da",
"newsImage": "http://cc.cocimg.com/api/uploads/160615/eba436de53154c3401a9e95dd9558353.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16719",
"newsNum": 0,
"newsSource": "yohunl 投稿",
"newsTitle": "iOS日誌獲取和實時瀏覽器顯示日誌",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "88c4cae808",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-16",
"newsId": "60ac53300b27af1cca2637dc4bceef8c",
"newsImage": "http://cc.cocimg.com/api/uploads/160612/03c5cdc13d6e6454a75b01088250c122.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16660",
"newsNum": 0,
"newsSource": "西木柚子的簡書",
"newsTitle": "UIWebView儲存圖片",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "da47d66725",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:02",
"newsCreateTime": "2016-06-16",
"newsId": "f820a89094f98a8cbc72f035dbad8eb4",
"newsImage": "http://cc.cocimg.com/api/uploads/160615/1d0a09a33dfc82a447d65ea46ea83e7a.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16708",
"newsNum": 0,
"newsSource": "antscript 投稿",
"newsTitle": "ASHUD——用Swift寫的HUD庫(OS X)",
"newsType": "swift",
"newsTypeName": "Swift",
"objectId": "1cab10f595",
"updatedAt": "2016-06-16 14:00:02"
},
{
"createdAt": "2016-06-16 14:00:03",
"newsCreateTime": "2016-06-16",
"newsId": "68f829c79226b87a763d3e125a93df0c",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/d3ace468a57c259ff98d18c11f852b34.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16726",
"newsNum": 0,
"newsSource": "ASO100情報中心",
"newsTitle": "開發者後臺重大更新——展示量將成為衡量 ASO 重要標準",
"newsType": "appstore",
"newsTypeName": "App Store研究",
"objectId": "867424f8df",
"updatedAt": "2016-06-16 14:00:03"
},
{
"createdAt": "2016-06-16 14:00:04",
"newsCreateTime": "2016-06-16",
"newsId": "371869ab00ecb682d432a34beef31cd7",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/0f8888e95688591c9362a484a1c5e824.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16725",
"newsNum": 0,
"newsSource": "資訊與互動設計",
"newsTitle": "如何做好陌生領域產品的互動設計",
"newsType": "design",
"newsTypeName": "產品設計",
"objectId": "a8c4097b44",
"updatedAt": "2016-06-16 14:00:04"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "b23517b5cb2b7c92f1788304e07464c5",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/151e68ed5a2a3735321231ae602f5aed.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16731",
"newsNum": 0,
"newsSource": "IT之家",
"newsTitle": "iOS 10開發者預覽版新特性：手遊也要玩直播？",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "7ac8b9671e",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "78a1697515d0dffa7dd1fedd6df19e0e",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/c4e5386f1f76c0f59e806a57e5f48450.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16730",
"newsNum": 0,
"newsSource": "中關村線上",
"newsTitle": "蘋果官方迴應系統應用“隱藏式”解除安裝",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "9fa041383f",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "96abf9746109d279d49ddddc16f561f0",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/7ab5ce4915b918d551be2642a31f36bc.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16729",
"newsNum": 0,
"newsSource": "IT之家",
"newsTitle": "蘋果iOS10彈窗提醒使用者更新非64位應用：拖慢系統性能",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "88fdccb8aa",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "e94c2fa2f95a2497d4dca50930340843",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/a7a04578a6486e70f7847ea9083bd814.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16728",
"newsNum": 0,
"newsSource": "中關村線上",
"newsTitle": "傳iPhone 7取消雙攝像頭：因技術不成熟",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "3b1afb96a5",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "8a8e2a3c8d31d066270c788d0333d2c4",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/b947fed1b16f91e423132ce25bea6091.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16727",
"newsNum": 0,
"newsSource": "中關村線上",
"newsTitle": "目標年底 蘋果正為Apple Watch 2採購元件",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "fc810e0e5e",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "facdbebd932b2eb60a88c7f54bd6b150",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/9512490536c8bf15224627821d9014a3.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16723",
"newsNum": 0,
"newsSource": "SwiftCafe",
"newsTitle": "沒有硬體釋出的 WWDC 2016—macOS篇",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "fa0004a1c3",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "49ba128182ed0821d19bf249ee87e3a0",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/985c61b2efcd754c9d950313078912e8.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16722",
"newsNum": 0,
"newsSource": "少數派",
"newsTitle": "想嚐鮮？談談 iOS 10 開發者預覽版體驗感受",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "688d154eb2",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:06",
"newsCreateTime": "2016-06-16",
"newsId": "aff01d5fb56c3a0f3b722599f9f144a1",
"newsImage": "http://cc.cocimg.com/api/uploads/160616/9701035f5f1ff2e0e28c3585b0d58ad3.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16721",
"newsNum": 0,
"newsSource": "愛範兒",
"newsTitle": "10 個重磅更新之外，iOS 10 還向這個設計趨勢靠攏",
"newsType": "apple",
"newsTypeName": "蘋果相關",
"objectId": "bad7257619",
"updatedAt": "2016-06-16 14:00:06"
},
{
"createdAt": "2016-06-16 14:00:09",
"newsCreateTime": "2016-06-16",
"newsId": "6171059e63356d6c7fc4991f5a660ff2",
"newsImage": "http://cc.cocimg.com/api/uploads/160615/85e61609b1e0a1a646d7da0b5abd6839.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16720",
"newsNum": 0,
"newsSource": "東京IT人",
"newsTitle": "假如程式設計師生活在童話裡……",
"newsType": "programmer",
"newsTypeName": "程式人生",
"objectId": "f3ed350d5c",
"updatedAt": "2016-06-16 14:00:09"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-15",
"newsId": "4103e8b24c743c7d0ae55f290537eda6",
"newsImage": "http://cc.cocimg.com/api/uploads/160614/0327d8b3d630232d7e05893764f4decd.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16704",
"newsNum": 0,
"newsSource": "MrPeak技術分享",
"newsTitle": "一款快速生成程式碼的Xcode外掛FastStub",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "4f95a60dd0",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-15",
"newsId": "830e07d1817367e098241c1269811d0d",
"newsImage": "http://cc.cocimg.com/api/uploads/160614/a01739b78ef2642bff8ee6ce0bdc33e1.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16652",
"newsNum": 0,
"newsSource": "Bison 投稿",
"newsTitle": "分分鐘解決iOS開發中App啟動廣告的功能",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "2064c463a3",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-15",
"newsId": "b0d0ad4aafb33933fcf31b01464ab84a",
"newsImage": "http://cc.cocimg.com/api/uploads/160614/cfddce2b3de30f0d2c55d29c0cd26c95.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16703",
"newsNum": 0,
"newsSource": "SwiftCafe",
"newsTitle": "快速上手 Core Spotlight",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "5f956e57b8",
"updatedAt": "2016-06-16 14:00:01"
},
{
"createdAt": "2016-06-16 14:00:01",
"newsCreateTime": "2016-06-15",
"newsId": "ad99486dcf16ae6f6a6e17755f620304",
"newsImage": "http://cc.cocimg.com/api/uploads/160614/1b1ca129ad219ea729eb75d1f9be6a8d.jpg",
"newsLink": "http://www.cocoachina.com/cms/wap.php?action=article&id=16674",
"newsNum": 0,
"newsSource": "漢斯哈哈哈的簡書",
"newsTitle": "YYCache原始碼分析（二）",
"newsType": "ios",
"newsTypeName": "iOS開發",
"objectId": "f2b2618d16",
"updatedAt": "2016-06-16 14:00:01"
}
]
}
}
*/
import UIKit
import ObjectMapper
class resultObj: Mappable {
var createdAt:String?
var newsCreateTime:String?
var newsId:String?
var newsImage:String?
var newsLink:String?
var newsNum:NSNumber?
var newsSource:String?
var newsTitle:String?
var newsType:String?
var newsTypeName:String?
var objectId:String?
var updatedAt:String?
required init?(_ map: Map) {
}
func mapping(map: Map) {
createdAt <- map["createdAt"]
newsCreateTime <- map["newsCreateTime"]
newsId <- map["newsId"]
newsImage <- map["newsImage"]
newsLink <- map["newsLink"]
newsNum <- map["newsNum"]
newsSource <- map["newsSource"]
newsTitle <- map["newsTitle"]
newsType <- map["newsType"]
newsTypeName <- map["newsTypeName"]
objectId <- map["objectId"]
updatedAt <- map["updatedAt"]
}
}
class dataObj: Mappable {
var count:NSNumber?
var results:[resultObj]?
required init?(_ map: Map) {
}
func mapping(map: Map) {
count <- map["count"]
results <- map["results"]
}
}
class TodayNewModel: Mappable {
var status:Int?
var msg:String?
var data:dataObj?
init(){}
required init?(_ map: Map) {
}
func mapping(map: Map) {
status <- map["status"]
msg <- map["msg"]
data <- map["data"]
}
}
//這裡需要提示一下的是：很多網上教程說要在func mapping(map: Map)函式里加一個mapping(map)，不知道是不是我理解錯的原因，但是就我這裡的解析來說，在裡面加mapping(map)是錯誤的做法，會無限遞迴下去的。OK，model裡大概就是這樣了。那下載好了的時候，我們只需要把它們結合起來使用就可以了：
FCFBaseViewModel.handleRequest(nil, path: "http://cloud.bmob.cn/f8bb56aa119e68ee/news_list_2_0", timeout:10, params: (["limit":20,"skip":0]), completeHandle: { (returnValue) in
print("************************************")
print(returnValue)
let result = Mapper<TodayNewModel>().map(returnValue)
if let obj = result {
let res = (obj.data?.results![0])! as resultObj
print(res.newsTitle!)
}
}, progressHandle: nil, cache: false)