Question

在HTTP帖子连接中实现连接超时（比方说，20秒）的最佳方法是什么？

我目前的代码如下：

-(NSData*) postData: (NSString*) strData
{    
    //postString is the STRING TO BE POSTED
    NSString *postString;

    //this is the string to send
    postString = @"data=";
    postString = [postString stringByAppendingString:strData]; 

    NSURL *url = [NSURL URLWithString:@"MYSERVERHERE"];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    NSString *msgLength = [NSString stringWithFormat:@"%d", [postString length]];

    //setting prarameters of the POST connection
    [request setHTTPMethod:@"POST"];
    [request addValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request addValue:msgLength forHTTPHeaderField:@"Content-Length"];
    [request addValue:@"en-US" forHTTPHeaderField:@"Content-Language"];
    [request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
    [request setTimeoutInterval:10.0];

    NSLog(@"%@",postString);

    NSURLResponse *response;
    NSError *error;

    NSLog(@"Starting the send!");
    //this sends the information away. everybody wave!
    NSData *urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
    NSLog(@"Just finished receiving!");
    if (&error) //OR TIMEOUT
    {
        NSLog(@"ERROR!");
        NSString *errorString = [NSString stringWithFormat:@"ERROR"];
        urlData = [errorString dataUsingEncoding:NSUTF8StringEncoding];
    }
    return urlData;
}

显然，超时间隔设置为10.0，但是当这十秒钟命中时，似乎没有任何事情发生。

Answer 1

请参阅：

NSMutableURLRequest timeout interval not taken into consideration for POST requests

显然会忽略240秒以下的超时。该问题中最高的投票答案与解决方案相关联。但是，我只是建议使用ASIHTTPRequest库。

http://allseeing-i.com/ASIHTTPRequest/

在HTTP Post中实现超时

1 个答案: