ios 如何将 NSData 转换为 NSString
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How to Convert NSData to NSString
提问by Nirav Bhatt
I know this has been asked quite before, and I already followed couple of approaches, but they don't work.
我知道以前有人问过这个问题，我已经采用了几种方法，但它们不起作用。
Following is what I already tried:
以下是我已经尝试过的：
NSString *newStr = [NSString stringWithUTF8String:[responseData bytes]];
NSString *newStr = [NSString stringWithFormat:@"%.*s", [responseData length], [responseData bytes]];
None of them works. In 1st case, it fills newStr with null. In 2nd, it fills with junk characters. I know from debugger log (po responseData) that I get valid response which is like bbbbbb 00 bbbbbb. [server sends them as byte array]
它们都不起作用。在第一种情况下，它用 null 填充 newStr。第二，它充满了垃圾字符。我从调试器日志（po responseData）知道我得到了有效的响应，就像 bbbbbb 00 bbbbbb。[服务器将它们作为字节数组发送]
What to do?
该怎么办？
EDIT: I am receiving this data from http request response - using ASIHTTPRequest library, in case anybody can help on that line.
编辑：我正在从 http 请求响应接收此数据 - 使用 ASIHTTPRequest 库，以防任何人都可以提供帮助。
采纳答案by Nirav Bhatt
I am posting this for records sake because I found a duplicateand voting to close this down.
我发布这个是为了记录起见，因为我发现了一个重复项并投票关闭它。
Actually what I am receiving is a stream of bytes represented as hex, and all the answers indicated do not work. Only [NSData description] gave me true data, which is something I can't use because it is intended for debugging.
实际上我收到的是一个以十六进制表示的字节流，并且所有指示的答案都不起作用。只有 [NSData description] 给了我真实的数据，这是我不能使用的，因为它用于调试。
Finally I tried the solution given here, and I get what I want. Thanks to all for trying to help out.
最后我尝试了这里给出的解决方案，我得到了我想要的。感谢所有尝试提供帮助的人。
回答by vinothp
Try this,
尝试这个，
NSData *responseData; [Initialize it]
NSString *receivedDataString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(@"%@",receivedDataString);
回答by aknew
You can use this code lines
您可以使用此代码行
NSString *str=[[NSString alloc] initWithBytes:data1.bytes length:data1.length encoding:NSUTF8StringEncoding];
回答by Nimit Parekh
Please try following code
请尝试以下代码
NSString *string = [[[NSString alloc] initWithData: responseData.bytes encoding:NSUTF8StringEncoding] autorelease];
回答by Rahul Gupta
NSString *image1Data = [[NSData dataWithData:myData] encodeBase64ForData];
But for this, you have to use NSData+Base64Additions class.
但是为此，您必须使用 NSData+Base64Additions 类。
回答by Nag Raj
Use following way
使用以下方式
NSString *dC_Str = [[NSString alloc] initWithData:decryPtd_data encoding:NSASCIIStringEncoding] ;
