ios - IOS 中 Swift 的 Rest API 未执行

Question

我正在使用 REST API 使用 swift 2 从服务器获取数据。当我调用下面的函数时，发生了一些事情，并且 func getAllServiceName(data :NSData) 未执行。我尝试了很多事情但没有成功。

func getServiceName () {
    let urlServiceName = NSURL(string: "urllinkOfMe")
    let request = NSURLRequest(URL: urlServiceName!)
    NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
        self.getAllServiceName(data!)
    }
}

func getAllServiceName(data :NSData)
{
    let dictServicename: NSDictionary!=(try! NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers)) as! NSDictionary

    if(dictServicename["data"] != nil){
        let dataTable :NSArray = dictServicename.valueForKey("data") as! NSArray
        for var i = 0 ; i < dataTable.count ; i++
        {
            //pickOptionVas.addObject(dataTable[i].valueForKey("serviceName")!)
        }
    }
}

Answer 1

以下是您通过调用 API 从服务器获取数据的方法:

func getServiceName () {

    let config = NSURLSessionConfiguration.defaultSessionConfiguration()
    let session = NSURLSession(configuration: config)

    let urlServiceName = NSURL(string: "http://188.166.232.101:1000/hs/vasService/getServiceName")
    let request = NSMutableURLRequest(URL: urlServiceName!)
    request.HTTPMethod = "GET"
    let postTask = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in

        print(data)
    })
    //This is necessary
    postTask.resume()
}

获取上面的代码，让我知道您是否正在获取数据!