ASIHTTPRequest 框架支持文件的上传；

文件的上传使用ASIFormDataRequest;

 
    NSString *s = @"文件传输";
    NSURL *url = [NSURL URLWithString:@"http://localhost:8080/text"];//传输地址
    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
    NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingMacChineseSimp);//编码格式
    [request setStringEncoding:enc];
    [request setPostValue:s forKey:@"title"];
    [request setFile:@"Users/...." forKey:@"文件名"];
    [request setDelegate:self];
    [request setDidFinishSelector:@selector(Finish)];//完成时调用的函数
    [request setDidFailSelector:@selector(Fail )];//失败时调用的函数
    [request startSynchronous];//开始传输