学习笔记|swift4--使用URLSession进行网络请求 iOS|swift

这里写了怎么拿到json数据不知道怎么解析的小伙伴可以看我另一篇贴子《 swift4--解析json》 【学习笔记|swift4--使用URLSession进行网络请求】
GET请求：

// //ViewController.swift //URLSesstionTest //import UIKitclass ViewController: UIViewController { //要传递的参数 var keyWord:String? //qq音乐搜索接口 var urlString:String = "http://s.music.qq.com/fcgi-bin/music_search_new_platform?t=0&%20n=3&aggr=1&cr=1&loginUin=0&format=json&%20inCharset=GB2312&outCharset=utf-8¬ice=0&%20platform=jqminiframe.json&needNewCode=0&p=1&catZhida=0&%20remoteplace=sizer.newclient.next_song&w=" override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. keyWord = "许嵩" if keyWord == nil { print("啥都没输呢") } else { urlString = urlString + keyWord! } //加密，当传递的参数中含有中文时必须加密 let newUrlString = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) //创建请求配置 let config = URLSessionConfiguration.default //创建请求URL let url = URL(string: newUrlString!) //创建请求实例 let request = URLRequest(url: url!)//进行请求头的设置 //request.setValue(Any?, forKey: String)//创建请求Session let session = URLSession(configuration: config) //创建请求任务 let task = session.dataTask(with: request) { (data,response,error) in //print(String(data: data! , encoding: .utf8) as Any) //将json数据解析成字典 let dictionary = try? JSONSerialization.jsonObject(with: data!, options: .mutableContainers) print(dictionary!)} //激活请求任务 task.resume()}override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. }}

POST请求：

func post(name:String,password:String) {let session = URLSession(configuration: .default) // 设置URL(该地址不可用，写你自己的服务器地址) let url = "http://66.666.666.666/" var request = URLRequest(url: URL(string: url)!) request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type") request.httpMethod = "POST" // 设置要post的内容，字典格式 let postData = https://www.it610.com/article/["name":"\(name)","password":"\(password)"] let postString = postData.compactMap({ (key, value) -> String in return "\(key)=\(value)" }).joined(separator: "&") request.httpBody = postString.data(using: .utf8) // 后面不解释了，和GET的注释一样 let task = session.dataTask(with: request) {(data, response, error) in do{ //将二进制数据转换为字典对象 if let jsonObj:NSDictionary = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions()) as? NSDictionary { print(jsonObj) //主线程 DispatchQueue.main.async{} } } catch{ print("Error.") DispatchQueue.main.async{}} } task.resume() }