如何使用C＃从套接字检索Java数据？

Question

I want to send BigInteger data in socket and my friend wants to retrieve the data.
I am using Java, but my friend uses C#.

String str = "Hello";
BigInteger big = new BigInteger(str.getBytes);
byteToBeSent[] = big.toByteArray();

I am sending this byte array ( byteToBeSent[] ) through socket. And my friend wants to retrieve "Hello".

How is this possible?

Answer 1

From Java, send your string using String.getBytes(encoding) and specify the encoding to match how your friend will read it (eg UTF-8).

This will translate your string into a byte stream that will be translatable at the C# end due to the fact that you're both agreeing on the encoding mechanism.

I'm not sure what your BigInteger mechanism is doing, but I don't believe it'll be portable, nor handle sizable strings.

Answer 2

Honestly, your best bet would to be use the built in Encoding classes in C#.

string str = "Hello";
byte[] data = System.Text.Encoding.UTF8.GetBytes(str);

And then send that through the socket.

Answer 3

Why do you use BigInteger to send String data? Or is that just an example?

If you want to send String data, use String.getBytes(String encoding) , send the result and decode it using System.Text.Encoding .

Answer 4

You'll need to get a custom BigInteger class for C# .

But parsing "Hello" as a biginteger isn't going to work. I you want to send text, you're better of using Navaars method.

Answer 5

On the C# end, you can use System.Text.Encoding.ASCII.GetString(bytesToConvert[]) to convert the received byte array back to a string.

I had thought that was some sort of Java idiom to convert a string to a byte array. It does correctly convert the string into ASCII bytes, and since BigInteger length is arbitrary, the length of the string should not be an issue.