我是一個OC開發(fā)者，最近的項目進入了混編为居，所以就寫一下有關(guān)swift的東西
這里只對最常用的POST和GET的請求做一個簡單的封裝碌宴，決定使用哪一種請求其實只是改變httpMethod的對應(yīng)值，post請求則httpMethod = "POST",get請求httpMethod="GET"蒙畴。
post請求往往是在httpBody添加參數(shù)贰镣，而get請求則一般接在鏈接Url后面 如:http://apis.eolinker.com/common/xxxx?key=value1&key2=value2
key=value1&key2=value2就是所謂的參數(shù)，而post請求則在httpBody中添加key=value1&key2=value2膳凝，Url怎不需要后面接問號和任何東西碑隆，http://apis.eolinker.com/common/xxxx。
上代碼：
這里我創(chuàng)建了一個類 HttpManager封裝代碼

//定義一個URLSession變量
    static var SessionManager = URLSession()

//實現(xiàn)GET請求

class func GetRequestSession(urlstr:String,parameters:NSDictionary?,Success:@escaping(_ response:Any) ->Void,Fail:@escaping(_ error:NSError) ->Void) -> Void {
    var _UrlStr:String = urlstr
    if (parameters != nil) {
        let JSONArr:NSMutableArray = NSMutableArray()
        for key:Any in (parameters?.allKeys)!
        {
            let JSONString = ("\(key)\("=")\(parameters![key] as! String)")
            JSONArr.add(JSONString)
        }
        let paramStr = JSONArr.componentsJoined(by:"&")
        _UrlStr.append("?"+paramStr)
        print("請求字符串"+_UrlStr)
    }
    let _url = URL.init(string:(_UrlStr.urlEncoded()))
    var urlRequest = URLRequest.init(url: _url!)
    urlRequest.httpMethod = "GET"
    
    let configuration:URLSessionConfiguration = URLSessionConfiguration.default
    HttpManager.SessionManager = URLSession(configuration: configuration)
    
    let task = HttpManager.SessionManager.dataTask(with:urlRequest){ (data, response, error) in
        if ((error) == nil)
        {
            if(data == nil)
            {
                return;
            }
            let jsonData = try!JSONSerialization.jsonObject(with: data! as Data, options: .mutableContainers)
            Success(jsonData);
        }
        else
        {
            Fail(error! as NSError)
            
        }

    }
    task.resume();
    }

實現(xiàn)POST請求

class func POSTRequestSession(urlstr:String,parameters:NSDictionary?,Success:@escaping(_ response:Any) ->Void,Fail:@escaping(_ error:NSError) ->Void) -> Void {
        
        let _UrlStr:String = urlstr
        
        let _url = URL.init(string:(_UrlStr.urlEncoded()))
        var urlRequest = URLRequest.init(url: _url!)
        urlRequest.httpMethod = "POST"
        let JSONArr:NSMutableArray = NSMutableArray()
        if (parameters != nil) {
            
            for key:Any in (parameters?.allKeys)!
            {
            let dictStr = "\(key)\("=")\(parameters!.value(forKey: key as! String)!)"
                JSONArr.add(dictStr)
            }
            urlRequest.httpBody = (JSONArr.componentsJoined(by: "&")).data(using: .utf8)
        }
        
        let configuration:URLSessionConfiguration = URLSessionConfiguration.default
        HttpManager.SessionManager = URLSession(configuration: configuration)
        
        let task = HttpManager.SessionManager.dataTask(with:urlRequest){ (data, response, error) in
            
            //注意：當(dāng)前這個閉包是在子線程中執(zhí)行的蹬音，如果想要在這兒執(zhí)行UI操作必須通過線程間的通信回到主線程
            if ((error) == nil)
            {
                if(data == nil)
                {
                    return;
                }
                let jsonData = try!JSONSerialization.jsonObject(with: data! as Data, options: .mutableContainers)
                Success(jsonData);
            }
            else
            {
                Fail(error! as NSError)
                
            }
            
        }
        task.resume();
        
    }
}

以下是涉及用到的擴展方法

extension String {
    
    //將原始的url編碼為合法的url
    func urlEncoded() -> String {
        let encodeUrlString = self.addingPercentEncoding(withAllowedCharacters:
            .urlQueryAllowed)
        return encodeUrlString ?? ""
    }
    
    //將編碼后的url轉(zhuǎn)換回原始的url
    func urlDecoded() -> String {
        return self.removingPercentEncoding ?? ""
}

}

使用方法上煤，這里的接口，我使用的是https://apistore.eolinker.com/#/官網(wǎng)的免費API祟绊，是查詢天氣用的
get和post使用方法一樣

 HttpManager.POSTRequestSession(urlstr:"http://apis.eolinker.com/common/weather/get15DaysWeatherByArea", parameters:["productKey":params.productKey!,"area":params.area!], Success: { (response) in
                
                let dict = response as? NSDictionary
                if (dict == nil)
                {
                    return;
                }
                print("原生請求返回數(shù)據(jù)",dict!)
                
            }) { (error) in
                
                print("請求出錯",error)
                
            }
            
        } else
        {
            AlamofireHttp()

        }

第三方Alamofire的簡單使用楼入，一筆帶過了，教程和官網(wǎng)都有介紹

 Alamofire.request("http://apis.eolinker.com/common/weather/get15DaysWeatherByArea", method: .post, parameters: ["productKey":params.productKey!,"area":params.area!], encoding:URLEncoding.default, headers: nil).responseJSON { (response) in
            
            print("第三方請求的返回數(shù)據(jù)",response);
        }
        
    }