`
linwwwei
  • 浏览: 216470 次
  • 性别: Icon_minigender_1
  • 来自: 上海
社区版块
存档分类
最新评论

NSMutableURLRequest和NSURLConnection

 
阅读更多

NSString *post = @"key1=val1&key2=val2";   

    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];   

 

    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];   

 

    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];   

    [request setURL:[NSURL URLWithString:@"http://www.someurl.com"]];   

    [request setHTTPMethod:@"POST"];   

    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];   

    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];   

    [request setHTTPBody:postData];   

 

    NSURLConnection *conn=[[NSURLConnection alloc] initWithRequest:request delegate:self];   

    if (conn)    

    {   

        receivedData = [[NSMutableData data] retain];   

    }    

    else    

    {   

        // inform the user that the download could not be made   

    }  

发送数据的

 

 

下栽数据的

- (void) URLTest

{

NSString *url = @"http://earthquake.usgs.gov/images/globes/-5_130.jpg";

NSURLRequest* theRequest = [NSURLRequest requestWithURL: [NSURL URLWithString: url] cachePolicy: NSURLRequestUseProtocolCachePolicy timeoutInterval: 60.0];

NSURLConnection* theConnection = [[NSURLConnection alloc] initWithRequest: theRequest delegate: self]; 

if(theConnection)

// Create the NSMutableData that will hold the received data 

// receivedData is declared as a method instance elsewhere 

receivedData = [[NSMutableData data] retain];

[self showAlertWithTitle: @"URL Test" message: @"Download could be made"];

}

else 

// inform the user that the download could not be made

[self showAlertWithTitle: @"URL Test" message: @"Download could not be made"];

}

}

分享到:
评论

相关推荐

Global site tag (gtag.js) - Google Analytics