iOS开发:Swift AFNetworking 3.0使用示例

封装了个HttpManager,通过AFNetworking处理http请求,AFNetworking 3.0已经废弃POST和GET方法,因为SwiftyJSON可以直接将NSData作为参数，没有返回没有转换成String,String只用于debug输出，可注释掉，减少性能浪费。 HttpManager.swift:

import AFNetworking

class HttpManager {
let manager = AFHTTPSessionManager()
private static let httpManager: HttpManager = HttpManager()

static var sharedInstance:HttpManager {
    return httpManager
}
private init() {
    manager.responseSerializer = AFHTTPResponseSerializer()
    manager.responseSerializer.acceptableContentTypes?.insert("text/html")
    manager.requestSerializer.timeoutInterval = 10
}

/// Http Get方法，不带参数
/// \- parameter url: 请求的URL
/// \- parameter success: 成功后回调的闭包
/// \- parameter encoding: 编码，默认utf-8
func get(url: String,encoding:UInt = NSUTF8StringEncoding,success:((NSData) -> Void)?, failure: ((NSError) -> Void)?) {
    return get(url, encoding: encoding, params: nil, success: success, failure: failure)
}

/// Http Get方法
/// \- parameter url: 请求的URL
/// \- parameter success: 成功后回调的闭包
/// \- parameter encoding: 编码，默认utf-8
/// \- parameter params: 参数，拼到url后缀里
func get(url: String,encoding:UInt = NSUTF8StringEncoding,params: \[String: AnyObject\]?,success:((NSData) -> Void)?, failure: ((NSError) -> Void)?) {
    return request(url, method: "GET", encoding: encoding, params: params, success: success, failure: failure)
}

/// Http Post方法
/// \- parameter url: 请求的URL
/// \- parameter success: 成功后回调的闭包
/// \- parameter encoding: 编码，默认utf-8
/// \- parameter params: Post 参数
func post(url: String,encoding:UInt = NSUTF8StringEncoding,params: \[String: AnyObject\]?, success:((NSData) -> Void)?, failure: ((NSError) -> Void)?) {
    return request(url, method: "POST", encoding: encoding, params: params, success: success, failure: failure)
}

///发送请求
/// \- parameter url: 请求URL
/// \- parameter method: 请求方法
/// \- parameter encoding: 编码，默认utf-8
/// \- parameter params:参数，如果是get,会添加到url后缀
/// \- parameter success: 成功回调闭包
/// \- parameter failure: 失败回调
func request(url: String, method: String = "GET",encoding:UInt = NSUTF8StringEncoding,params: \[String: AnyObject\]?, success:((NSData) -> Void)?, failure: ((NSError) -> Void)?) {
    
    let paramStr = NSMutableString()
    for (key,value) in params! {
        paramStr.appendString("\\(key)=\\(value)&")
    }
    var requestUrl = url;
    if(method == "GET") {
        requestUrl = "\\(url)?\\(paramStr)"
    }

    let urlRequest=NSMutableURLRequest(URL: NSURL(string: requestUrl)!)
    urlRequest.HTTPMethod = method
    urlRequest.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "content-type")
    
    if method == "POST" {
        let bodyData = paramStr.stringByAddingPercentEscapesUsingEncoding(encoding)?.dataUsingEncoding(encoding)
        urlRequest.HTTPBody = bodyData
    }

    let task = manager.dataTaskWithRequest(urlRequest) { (response, responseObj, error) -> Void in
        if (error != nil) {
            failure!(error!)
            return
        }
        let responseData = responseObj as! NSData
        let responseStr = NSString(data: responseData, encoding: encoding)
        PLog.v(responseStr!)
        success!(responseData)
    }
    task.resume()
}