前言
对于开发者来说，网络请求是必不可少的一个重要环节，每请求一个接口都需要进行数据请求，那么封装网络库是尤为重要的，如今主流的三方网络框架属AFNetworking，它的使用极大的简化了原生的网络请求方式，方便、快捷，使得广大开发者的首选。> 看到网上好多都是关于OC的AFNetworking简单封装，最近刚好有时间整理博客，我就简单封装了一下Swift版本的AFNetworking（基于3.0以上）。
cocoapods集成AFNetworking
注： cocoapods集成AFNetworking的具体过程，在这里不一一展示，具体内容，请查看另一篇内容【cocopods集成】"https://blog.csdn.net/macro_sn/article/details/81744433"
废话不多说，直接上代码：
import UIKit
importAFNetworking
// requet type
enumHTTPMethod {
caseGET
casePOST
}
/**
* An API structure is defined to define various network interfaces.
*/
struct API {
// Define hostname
staticlethostName =""
// Define baseURL
staticletbaseURL =""
}
class AppService: AFHTTPSessionManager {
staticletshareInstance:AppService= {
letmanager =AppService()
manager.requestSerializer = AFJSONRequestSerializer()
let setArr = NSSet(objects: "text/html", "application/json", "text/json")
manager.responseSerializer.acceptableContentTypes = setArr as? Set
// add HttpHeader
manager.requestSerializer.setValue("application/json", forHTTPHeaderField:"Content-Type")
manager.requestSerializer.setValue("application/json", forHTTPHeaderField:"Accept")
manager.requestSerializer.willChangeValue(forKey:"timeoutInterval")
manager.requestSerializer.timeoutInterval = 30.0
manager.requestSerializer.didChangeValue(forKey:"timeoutInterval")
returnmanager
}()
/**
A method of opening to the outside world is defined to make requests for network data.
- parameter methodType: request type(GET / POST)
- parameter urlString: url address
- parameter parameters:
The parameter required to send a network request is a dictionary.
- parameter resultBlock: The completed callback.
- parameter responseObject: Callback parameters to return the requested data.
- parameter error: If the request succeeds, then the error is nil.
*/
funcrequest(methodType:HTTPMethod, urlString:String, parameters: [String:AnyObject]?, resultBlock:@escaping(Any?,Error?)->()) {
// If the request succeeds, then the error is nil.
letsuccessBlock = { (task:URLSessionDataTask, responseObj:Any?)in
resultBlock(responseObj,nil)
}
// If the request succeeds, then the error is nil.
letfailureBlock = { (task:URLSessionDataTask?, error:Error)in
resultBlock(nil, error)
}
// request type
ifmethodType ==HTTPMethod.GET{
get(urlString, parameters: parameters, progress:nil, success: successBlock, failure: failureBlock)
}else{
post(urlString, parameters: parameters, progress:nil, success: successBlock, failure: failureBlock)
}
}
}