使用NSLog打印NSData [英] Printing NSData using NSLog

问题描述

如何使用NSLog打印NSData对象的内容：

How can I print the contents of an NSData object using NSLog:

-(void) post:(NSString*) msg to:(NSString*) link{
    NSString *myRequestString = [NSString stringWithFormat:@"message=%@", msg];
    NSData *myRequestData = [NSData dataWithBytes: [myRequestString UTF8String] length: [myRequestString length]];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString: link]]; 
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
    [request setHTTPMethod: @"POST"];
    [request setHTTPBody: myRequestData];
    NSData *returnData = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil];
    NSLog("%@", *returnData); //doesn't work

}

我想打印内容* returnData ...

I would like to print the contents of *returnData...

推荐答案

如果你这样做：

NSLog(@"%@", returnData); 

NSData将以十六进制格式记录。我想这可能就是你想要的。

The NSData will be logged in hex format. I think that is probably what you are after.

如果你想把它变成一个字符串并记录字符串，你首先需要找出使用了什么字符集。 HTTP的默认字符集不是UTF-8，而是ISO-8859-1 。一种方法是检查charset部分的 Content-Type 标头。

If you want to turn it into a string and log the string, you first need to find out what character set was used. The default character set for HTTP is not UTF-8, it is ISO-8859-1. One way to do that is to examine the Content-Type header for the charset section.

这篇关于使用NSLog打印NSData的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！