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我在我的 iPhone5 中测试 iOS9，我意识到我的 API 调用没有运行。我拨打了电话，但它没有向我的后端发送任何内容。

这是我的方法：

-(void)placePostRequest:(NSString *)action withData:(NSDictionary *)dataToSend withHandler:(void (^)(NSURLResponse *response, NSData *data, NSError *error))ourBlock {
    NSString *urlString = [NSString stringWithFormat:@"%@/%@", URL_API, action];
    NSLog(urlString);

    NSURL *url = [NSURL URLWithString:urlString];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

    // Creamos el JSON desde el data
    NSError *error;

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dataToSend options:0 error:&error];

    NSString *jsonString;
    if (! jsonData) {
        NSLog(@"Got an error: %@", error);
    } else {
        jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

        NSData *requestData = [NSData dataWithBytes:[jsonString UTF8String] length:[jsonString lengthOfBytesUsingEncoding:NSUTF8StringEncoding]];

        [request setHTTPMethod:@"POST"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
        [request setValue:[NSString stringWithFormat:@"%d", [requestData length]] forHTTPHeaderField:@"Content-Length"];
        [request setHTTPBody: requestData];

        [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
    }
}

HTTPResponse 为 nil 且代码为 0：

在此处输入图像描述

这是我收到的：

2015-06-15 13:40:48.176 myProject[291:33222] CFNetwork SSLHandshake failed (-9824)
2015-06-15 13:40:48.181 myProject[291:33222] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9824)
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