ios - didReceiveData没有获取所有数据

Question

我正在尝试使用NSURLConnection下载JSON，但是除非我强制应用暂停几秒钟，否则我获得的数据将不完整。它总是大约2600字节，我的响应应该在70000左右。

任何线索为什么会这样？

谢谢

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    _responseData = [[NSMutableData alloc] init];
    //sleep(10);
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [_responseData appendData:data];
    [self getDataJSON: _responseData];
}

Answer 1

didReceiveData在接收数据时被多次调用

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [_responseData appendData:data];

}

您必须等到它完成接收数据

- (void)connectionDidFinishLoading:(NSURLConnection*)connection
{
     [self getDataJSON: _responseData];
}