如何在urlrequest swift中传递HTTPBody

import Foundation

func makeRequestWithHTTPBody() {
    let url = URL(string: "https://example.com/api/endpoint")!
    var request = URLRequest(url: url)
    request.httpMethod = "POST"
    
    // 构建要发送的数据
    let bodyData = "name=John&age=30".data(using: .utf8)
    request.httpBody = bodyData
    
    // 可选：设置请求头部信息
    request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
    
    // 发送请求
    let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
        if let error = error {
            print("请求失败: \(error)")
            return
        }
        
        // 处理服务器返回的数据
        if let data = data {
            let responseString = String(data: data, encoding: .utf8)
            print("服务器返回: \(responseString ?? "")")
        }
    }
    
    task.resume()
}