ios - Http Post参数到url不要在objectC Xcode中发送特殊字符 "+"

Question

我创建了一个应用程序，它向 aspx 服务器发送两个 POST 参数，并将数据保存在数据库中。这是一个 Iphone 应用程序。

代码如下:

        NSString *post = [NSString stringWithFormat:@"name=%@&number=%@", 
        name,number];
        NSString *capturedpost = [post 
        stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        NSData *postData = [capturedpost dataUsingEncoding:NSUTF8StringEncoding];
        //NSString *postLength = [NSString stringWithFormat:@"%d", [postData 
        length]];
        NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
        [request setURL:[NSURL URLWithString:@"http:/www.myurl.aspx"]];
        [request setHTTPMethod:@"POST"];
        //[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
        //[request setValue:@"application/x-www-form-urlencoded"
 forHTTPHeaderField:@"Content-Type"];
        [request setHTTPBody:postData];
        NSURLResponse *requestResponse;
        NSData *requestHandler = [NSURLConnection sendSynchronousRequest:request
     returningResponse:&requestResponse error:nil];
        NSString *requestReply = [[NSString alloc] initWithBytes:[requestHandler 
    bytes] length:[requestHandler length] encoding:NSASCIIStringEncoding];
        NSLog(@"requestReply: %@", requestReply);
        NSData *returnData = [NSURLConnection sendSynchronousRequest:request 
    returningResponse:nil error:nil];

但是在服务器上，包含电话号码的字符串“number”如“+393333...”在数据库中保存没有“+”的号码。我能怎么做？服务器端工作正常，因为在 Android 上执行相同请求的相同应用程序工作完美!

Answer 1

好的，多亏了“holex”，我以这种方式成功地对 URL 进行了编码:

 NSString * encodedString = (NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(
                                                                                       NULL,
                                                                                       (CFStringRef)post,
                                                                                       NULL,
                                                                                       (CFStringRef)@"+",
                                                                                       kCFStringEncodingUTF8 ));

并且“+”正确保存在数据库中!