NSURLSession 请求和响应

使用NSURLSession进行网络请求和响应

swift
let url = URL(string: "https://api.example.com/data.json")!
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
    if let error = error {
        print("请求失败: \(error)")
        return
    }
    
    if let data = data {
        // 解析服务器返回的JSON数据
        do {
            let json = try JSONSerialization.jsonObject(with: data, options: [])
            print("JSON数据: \(json)")
        } catch {
            print("JSON解析失败: \(error)")
        }
    }
}
task.resume()

swift
let url = URL(string: "https://api.example.com/submit")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
let parameters = ["name": "John", "age": "25"]
request.httpBody = try? JSONSerialization.data(withJSONObject: parameters, options: [])
let task = URLSession.shared.uploadTask(with: request, from: nil) { (data, response, error) in
    if let error = error {
        print("请求失败: \(error)")
        return
    }
    
    if let data = data {
        // 解析服务器返回的数据
        let responseString = String(data: data, encoding: .utf8)
        print("服务器响应: \(responseString ?? "")")
    }
}
task.resume()

swift
class MyDelegate: NSObject, URLSessionDataDelegate {
    func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) {
        // 处理响应数据的一部分
    }
}
let url = URL(string: "https://api.example.com/data.json")!
let request = URLRequest(url: url)
let session = URLSession(configuration: .default, delegate: MyDelegate(), delegateQueue: nil)
let task = session.dataTask(with: request)
task.resume()