转自: http://blog.csdn.net/C_calary/article/details/53193747
学习Swift 试着动手写个天气小app,搜集资料这个封装还蛮好用的.
我用的第三方的版本是这样的:
pod 'Alamofire', '~> 4.2.0'
pod 'SwiftyJSON', '~> 3.1.3'
import Foundation
import UIKit
import Alamofire
import SwiftyJSON private let NetworkRequestShareInstance = NetworkRequest() class NetworkRequest {
class var sharedInstance : NetworkRequest {
return NetworkRequestShareInstance
}
}
extension NetworkRequest {
//MARK: - GET 请求
// let tools : NetworkRequest.shareInstance! func getRequest(urlString: String, params : [String : Any], success : @escaping (_ response : [String : AnyObject])->(), failture : @escaping (_ error : Error)->()) { //使用Alamofire进行网络请求时，调用该方法的参数都是通过getRequest(urlString， params, success :, failture :）传入的，而success传入的其实是一个接受 [String : AnyObject]类型 返回void类型的函数 Alamofire.request(urlString, method: .get, parameters: params)
.responseJSON { (response) in/*这里使用了闭包*/
//当请求后response是我们自定义的，这个变量用于接受服务器响应的信息
//使用switch判断请求是否成功，也就是response的result
switch response.result {
case .success(let value):
//当响应成功是，使用临时变量value接受服务器返回的信息并判断是否为[String: AnyObject]类型 如果是那么将其传给其定义方法中的success
// if let value = response.result.value as? [String: AnyObject] {
success(value as! [String : AnyObject])
// }
let json = JSON(value)
PrintLog(json) case .failure(let error):
failture(error)
print("error:\(error)")
}
} }
//MARK: - POST 请求
func postRequest(urlString : String, params : [String : Any], success : @escaping (_ response : [String : AnyObject])->(), failture : @escaping (_ error : Error)->()) { Alamofire.request(urlString, method: HTTPMethod.post, parameters: params).responseJSON { (response) in
switch response.result{
case .success:
if let value = response.result.value as? [String: AnyObject] {
success(value)
let json = JSON(value)
PrintLog(json)
}
case .failure(let error):
failture(error)
PrintLog("error:\(error)")
} }
} //MARK: - 照片上传
///
/// - Parameters:
/// - urlString: 服务器地址
/// - params: ["flag":"","userId":""] - flag,userId 为必传参数
/// flag - 666 信息上传多张 －999 服务单上传 －000 头像上传
/// - data: image转换成Data
/// - name: fileName
/// - success:
/// - failture:
func upLoadImageRequest(urlString : String, params:[String:String], data: [Data], name: [String],success : @escaping (_ response : [String : AnyObject])->(), failture : @escaping (_ error : Error)->()){ let headers = ["content-type":"multipart/form-data"] Alamofire.upload(
multipartFormData: { multipartFormData in
//666多张图片上传
let flag = params["flag"]
let userId = params["userId"] multipartFormData.append((flag?.data(using: String.Encoding.utf8)!)!, withName: "flag")
multipartFormData.append( (userId?.data(using: String.Encoding.utf8)!)!, withName: "userId") for i in ..<data.count {
multipartFormData.append(data[i], withName: "appPhoto", fileName: name[i], mimeType: "image/png")
}
},
to: urlString,
headers: headers,
encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload.responseJSON { response in
if let value = response.result.value as? [String: AnyObject]{
success(value)
let json = JSON(value)
PrintLog(json)
}
}
case .failure(let encodingError):
PrintLog(encodingError)
failture(encodingError)
}
}
)
}
}
调用的方法也很简单的,闭包传值:
以下的接口是可以正常用的
NetWorkWeather.sharedInstance.getRequest(urlString: "http://op.juhe.cn/onebox/weather/query", params: ["cityname":"杭州","key":"f6418f1f819c801a60ea7880ca844587"], success: {(json) -> Void in
print(json)
}, failture: {(error) -> Void in
print(error)
})