Swift--AFNetworking封装工具

import UIKit
import AFNetworking


enum RequestType : String{
    case GET = "GET"
    case POST = "POST"
}

class NetworkTools: AFHTTPSessionManager {
    //let 是线程安全的
    static let shareInstance : NetworkTools = {
        let tools = NetworkTools()
        tools.responseSerializer.acceptableContentTypes?.insert("text/html")
        return tools
    }()
    
}

//MARK:- 封装请求方法
extension NetworkTools{
    func require(methodType:RequestType,urlString:String,parameters:[String:Any] ,finished:@escaping (Any?,Error?)->()){
        
        // 定义成功的回调闭包
        let successCallBack = { (task: URLSessionDataTask, responseObj: Any?) in
            finished(responseObj as? [String : Any], nil)
        }
        
        // 定义失败的回调闭包
        let failureCallback = { (task: URLSessionDataTask?, error: Error) in
            finished(nil, error )
        }
        
        if methodType == .GET{
            get(urlString, parameters: parameters, progress: nil, success: successCallBack, failure: failureCallback)
        }else{
            post(urlString, parameters: parameters, progress: nil, success: successCallBack, failure: failureCallback)
        }

    }
   
}