How to UTF-8 encode a string?

[jens Jensen]

hello,
i'm doing utf-8 encoding the following way.
string message;

UTF8Encoding utf8 = new UTF8Encoding();

Byte[] encodedBytes = utf8.GetBytes(m essage);

message = encodedBytes.To String();

can someone correct me?

many thanks

JJ

[Jon Skeet [C# MVP]]

jens Jensen wrote:

hello,
i'm doing utf-8 encoding the following way.
string message;

UTF8Encoding utf8 = new UTF8Encoding();
Note that you can use Encoding.UTF8En coding to avoid creating a new
instance each time.
Byte[] encodedBytes = utf8.GetBytes(m essage);
message = encodedBytes.To String();

can someone correct me?

Well, what are you expecting message to be? All strings in .NET are
UTF-16 encoded. There's no way round that (and it's not really a
problem).

Could you give us more context? Normally encoding is required when you
want to convert from a text representation to a binary represenation of
that text - e.g. to write some text to a stream. What are you trying to
do here?

Jon

[jens Jensen]

> Could you give us more context? Normally encoding is required when you

want to convert from a text representation to a binary represenation of
that text - e.g. to write some text to a stream. What are you trying to
do here?

Jon

I Jon,
I need to post data to web service vis HTTP POST.

The webservice requires utf-8 encoded data. My "POST" is currently failing
due to this.

Many thanks
JJ

[Jon Skeet [C# MVP]]

jens Jensen wrote:

Could you give us more context? Normally encoding is required when you
want to convert from a text representation to a binary represenation of
that text - e.g. to write some text to a stream. What are you trying to
do here?

I Jon,
I need to post data to web service vis HTTP POST.

The webservice requires utf-8 encoded data. My "POST" is currently failing
due to this.

Right. So, you need to get the bytes as you did, and then write those
to the request stream.

Jon

[jens Jensen]

>

Right. So, you need to get the bytes as you did, and then write those
to the request stream.

Jon

How could i actually extracted the data in a text file? The remote and is a
java platform and the want to be sur i'm posted utf-8 encoded data.

I need to send them a file showing i'm correctly utf-8 encoding the data.

[Vadym Stetsyak]

Hello, jens!

jJ> I need to post data to web service vis HTTP POST.

jJ> The webservice requires utf-8 encoded data. My "POST" is currently
jJ> failing due to this.

Do you specify appropriate content-type, when doing you POST?

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

[jens Jensen]

"jens Jensen" <je**@jensen.dk > skrev i en meddelelse
news:O4******** ******@TK2MSFTN GP05.phx.gbl...

Right. So, you need to get the bytes as you did, and then write those
to the request stream.

Jon

How could i actually extracted the data in a text file? The remote and is
a java platform and the want to be sur i'm posted utf-8 encoded data.

I need to send them a file showing i'm correctly utf-8 encoding the data.

How could i actually extract the data in a text file? The remote end is a
java platform and they want to be sur i'm posting utf-8 encoded data.

I need to send them a file showing i'm correctly utf-8 encoding the data.

[Vadym Stetsyak]

Hello, jens!

jJ> How could i actually extracted the data in a text file? The remote and
jJ> is a java platform and the want to be sur i'm posted utf-8 encoded
jJ> data.

How do you perform POST, can you throw the code?

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

[jens Jensen]

>

Do you specify appropriate content-type, when doing you POST?

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

below the actual code:

//i found my client cert.
req.ClientCerti ficates.Add(Cer tificate);

Log.Write("Our certificate: " + Certificate.ToS tring());

req.ContentType = "text/xml";

// req.KeepAlive = false;
req.Method = "POST";

UTF8Encoding encoding = new UTF8Encoding();

byte[] postBytes = encoding.GetByt es(message);

req.ContentLeng th = postBytes.Lengt h;

System.IO.Strea m reqStream = req.GetRequestS tream();

reqStream.Write (postBytes, 0, postBytes.Lengt h);

reqStream.Close ();

Log.Write("send ing content: "+message);

System.Net.WebR esponse resp = (HttpWebRespons e)req.GetRespon se();
System.IO.Strea mReader sr = new
System.IO.Strea mReader(resp.Ge tResponseStream ());

Many Thanks

JJ

[Mike Schilling]

I am presuming that the problem is that the bytes are correct but the remote
service doesn't recognize them as being UTF-8. Try adding

req.ContentEnco ding = encoding;

"jens Jensen" <je**@jensen.dk > wrote in message
news:eF******** ******@TK2MSFTN GP04.phx.gbl...

Do you specify appropriate content-type, when doing you POST?

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

below the actual code:

//i found my client cert.
req.ClientCerti ficates.Add(Cer tificate);

Log.Write("Our certificate: " + Certificate.ToS tring());

req.ContentType = "text/xml";

// req.KeepAlive = false;
req.Method = "POST";

UTF8Encoding encoding = new UTF8Encoding();

byte[] postBytes = encoding.GetByt es(message);

req.ContentLeng th = postBytes.Lengt h;

System.IO.Strea m reqStream = req.GetRequestS tream();

reqStream.Write (postBytes, 0, postBytes.Lengt h);

reqStream.Close ();

Log.Write("send ing content: "+message);

System.Net.WebR esponse resp = (HttpWebRespons e)req.GetRespon se();
System.IO.Strea mReader sr = new
System.IO.Strea mReader(resp.Ge tResponseStream ());

Many Thanks

JJ