带有参数和图像的swift url会话post请求(多部分表单数据请求)

// 创建URL会话配置
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)

// 创建URL
let url = URL(string: "https://example.com/upload")!

// 创建请求
var request = URLRequest(url: url)
request.httpMethod = "POST"

// 创建参数
let parameters = ["key1": "value1", "key2": "value2"]

// 创建图像数据
let image = UIImage(named: "image.jpg")
let imageData = image?.jpegData(compressionQuality: 0.8)

// 创建多部分表单数据
let boundary = UUID().uuidString
let contentType = "multipart/form-data; boundary=\(boundary)"
request.setValue(contentType, forHTTPHeaderField: "Content-Type")

var body = Data()

// 添加参数
for (key, value) in parameters {
    body.append("--\(boundary)\r\n")
    body.append("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
    body.append("\(value)\r\n")
}

// 添加图像数据
if let imageData = imageData {
    body.append("--\(boundary)\r\n")
    body.append("Content-Disposition: form-data; name=\"image\"; filename=\"image.jpg\"\r\n")
    body.append("Content-Type: image/jpeg\r\n\r\n")
    body.append(imageData)
    body.append("\r\n")
}

body.append("--\(boundary)--\r\n")

// 设置请求体
request.httpBody = body

// 创建上传任务
let task = session.uploadTask(with: request, from: body) { data, response, error in
    // 处理响应
    if let error = error {
        print("Error: \(error)")
    } else if let data = data {
        let responseString = String(data: data, encoding: .utf8)
        print("Response: \(responseString)")
    }
}

// 启动任务
task.resume()