iOS開發——網路編程Swift篇&（六）非同步Post方式

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非同步Post方式

 

 1      // MARK: - 非同步Post方式 2     func asynchronousPost() 3     { 4         //建立NSURL對象 5         var url:NSURL! = NSURL(string: "http://m.weather.com.cn/data/101010100.html") 6          7         //建立請求對象 8         var request : NSMutableURLRequest = NSMutableURLRequest(URL: url, cachePolicy: NSURLRequestCachePolicy.UseProtocolCachePolicy, timeoutInterval: 10) 9         10         request.HTTPMethod = "POST"//佈建要求方式為POST，預設為GET11         12         var str:String = "type=focus-c";//設定參數13         var data:NSData = str.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!14         request.HTTPBody = data;15         16         //串連伺服器17         var connection = NSURLConnection(request: request, delegate: self)18     }19     20     21     22     // MARK: - NSURLConnectionDataDelegate23     func connection(connection: NSURLConnection, willSendRequest request: NSURLRequest, redirectResponse response: NSURLResponse?) -> NSURLRequest?24     {25         //將要發送請求26         return request27     }28     29     func connection(connection: NSURLConnection, didReceiveResponse response: NSURLResponse)30     {31         //接收響應32     }33     34     35     var jsonData:NSMutableData =  NSMutableData()36     func connection(connection: NSURLConnection, didReceiveData data: NSData)37     {38         //收到資料39         self.jsonData.appendData(data)40     }41     42     func connection(connection: NSURLConnection, needNewBodyStream request: NSURLRequest) -> NSInputStream?43     {44         //需要新的內容流45         return request.HTTPBodyStream46     }47     48     func connection(connection: NSURLConnection, didSendBodyData bytesWritten: Int, totalBytesWritten: Int, totalBytesExpectedToWrite: Int)49     {50         //發送資料請求51     }52     53     func connection(connection: NSURLConnection, willCacheResponse cachedResponse: NSCachedURLResponse) -> NSCachedURLResponse?54     {55         //緩衝響應56         return cachedResponse57     }58     59     func connectionDidFinishLoading(connection: NSURLConnection)60     {61         //請求結束62         63         var jsonString = NSString(data: self.jsonData, encoding: NSUTF8StringEncoding)64         65         println(jsonString)66         67         68         let dict:AnyObject? = NSJSONSerialization.JSONObjectWithData(self.jsonData, options: NSJSONReadingOptions.AllowFragments, error: nil)69         70         71         //已下代碼 重新修訂72 //        var dic = dict as NSDictionary73 //        74 //        let weatherinfoDic = dic.objectForKey("weatherinfo") as? NSDictionary75 //        let city = weatherinfoDic?.objectForKey("city") as? String76 //        let date_y = weatherinfoDic?.objectForKey("date_y") as? String77 //        let temp1 = weatherinfoDic?.objectForKey("temp1") as? String78 //        79 //        let alert = UIAlertView(title: (city! + date_y!), message: temp1!, delegate: nil, cancelButtonTitle: "確定")80 //        alert.show()81         82         83         //2015年4月10號修改84         if var dic = dict as? NSDictionary85         {86             let weatherinfoDic = dic.objectForKey("weatherinfo") as? NSDictionary87             let city = weatherinfoDic?.objectForKey("city") as? String88             let date_y = weatherinfoDic?.objectForKey("date_y") as? String89             let temp1 = weatherinfoDic?.objectForKey("temp1") as? String90             91             let alert = UIAlertView(title: (city! + date_y!), message: temp1!, delegate: nil, cancelButtonTitle: "確定")92             alert.show()93         }94     }95     

 

 

iOS開發——網路編程Swift篇&（六）非同步Post方式