iOS开发——网络编程Swift篇&（五）同步Post方式

同步Post方式

 1      // MARK: - 同步Post方式
 2     func synchronousPost()
 3     {
 4         //创建NSURL对象
 5         var url:NSURL! = NSURL(string: "http://m.weather.com.cn/data/101010100.html")
 6
 7         //创建请求对象
 8         var request : NSMutableURLRequest = NSMutableURLRequest(URL: url, cachePolicy: NSURLRequestCachePolicy.UseProtocolCachePolicy, timeoutInterval: 10)
 9
10         request.HTTPMethod = "POST"//设置请求方式为POST，默认为GET
11
12         var str:String = "type=focus-c";//设置参数
13         var data:NSData = str.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!
14         request.HTTPBody = data;
15
16         //响应对象
17         var response:NSURLResponse?
18
19         //错误对象
20         var error:NSError?
21
22         //发出请求
23         var received:NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: &error)
24
25         if (error != nil)
26         {
27             println(error?.code)
28             println(error?.description)
29         }else
30         {
31             var jsonString = NSString(data: received!, encoding: NSUTF8StringEncoding)
32
33             println(jsonString)
34         }
35     }