Swift 2.0网址发布请求 [英] Swift 2.0 url post request

问题描述

我一直在尝试找出我的代码有什么问题，但在Swift 2.0中我一直收到此错误

I've been trying to figure out what is wrong whit my code but i keep getting this error in swift 2.0

Errors thrown from here are not handled because the enclosing catch is not exhaustive

XCode的自动转换为我做了很多工作(也给出了很多错误)，但这仍然行不通.我不知道什么在起作用，所以也许你们可以对这个案例有所了解.预先感谢

The automated conversion from XCode did a lot of work for me (also gave a LOT of errors) but this is still not working. I don't understand what is working so maybe you guys can throw some light on the case. Thanks in advance

这是我的代码

if config.isConnected() {
        let post:NSString = "postID=\(postID)"
        //NSLog("PostData: %@",post);
        let url:NSURL = NSURL(string:"https://www.example.com/json/index.php")!
        let postData:NSData = post.dataUsingEncoding(NSASCIIStringEncoding)!
        let postLength:NSString = String( postData.length )

        let request:NSMutableURLRequest = NSMutableURLRequest(URL: url)
        request.HTTPMethod = "POST"
        request.HTTPBody = postData
        request.setValue(postLength as String, forHTTPHeaderField: "Content-Length")
        request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
        request.setValue("application/json", forHTTPHeaderField: "Accept")

        var reponseError: NSError?
        var response: NSURLResponse?

        var urlData: NSData?
        do {
            urlData = try NSURLConnection.sendSynchronousRequest(request, returningResponse:&response) // gives error
        } catch let error as NSError {
            print(reponseError)
            reponseError = error
            urlData = nil
        }
        if ( urlData != nil ) {
            Webiew.loadRequest(request)
        } else {
            let alert: UIAlertView = UIAlertView(title: "OOPS", message: "There is nothing here!", delegate: nil, cancelButtonTitle: "OK");
            alert.show()
        }
    } else { 
        // not connected 
    }

推荐答案

尝试使用此代码*内部说明*

Try this code *explained inside *

 let parameters = ["userId":"1", "userName":"2"] as Dictionary<String, String>
    //create the url with NSURL
    let url = NSURL(string: "URL") //change the url

    //create the session object
    let session = NSURLSession.sharedSession()
    let request = NSMutableURLRequest(URL: url!)
    request.HTTPMethod = "POST" //set http method as POST

    //request.HTTPBody = NSJSONSerialization.dataWithJSONObject(parameters, options: nil, error: &err) // pass dictionary to nsdata object and set it as request body

    request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
    request.setValue("application/json", forHTTPHeaderField: "Accept")
    request.setBodyContent(parameters)
    //create dataTask using the session object to send data to the server
    let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
        // println("Response: \(response)")
        let strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
        print("Body: \(strData)")
        let json = try!NSJSONSerialization.JSONObjectWithData(data!, options: .MutableLeaves) as! NSDictionary
        print("account data")
        completion(result: json as NSDictionary?)


        // Did the JSONObjectWithData constructor return an error? If so, log the error to the console
        if(error != nil) {
            print(error!.localizedDescription)
            let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
            print("Error could not parse JSON: '\(jsonStr)'")
        }
        else {
            // The JSONObjectWithData constructor didn't return an error. But, we should still
            // check and make sure that json has a value using optional binding.
            if let parseJSON = json as NSDictionary! {
                // Okay, the parsedJSON is here, let's get the value for 'success' out of it
                _ = parseJSON["success"] as? Int
                //println("Succes: \(success)")
            }
            else {
                // Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
                _ = NSString(data: data!, encoding: NSUTF8StringEncoding)
               // println("Error could not parse JSON: \(jsonStr)")
            }
        }

    })

    task.resume()

添加此扩展名:

extension NSMutableURLRequest {
    func setBodyContent(contentMap: Dictionary<String, String>) {
        var firstOneAdded = false
        var contentBodyAsString = String()
        let contentKeys:Array<String> = Array(contentMap.keys)
        for contentKey in contentKeys {
            if(!firstOneAdded) {

                contentBodyAsString = contentBodyAsString + contentKey + "=" + contentMap[contentKey]!
                firstOneAdded = true
            }
            else {
                contentBodyAsString = contentBodyAsString + "&" + contentKey + "=" + contentMap[contentKey]!
            }
        }
        contentBodyAsString = contentBodyAsString.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!
        self.HTTPBody = contentBodyAsString.dataUsingEncoding(NSUTF8StringEncoding)
    }
}

这篇关于Swift 2.0网址发布请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！