Java How to read unicode characters in socket?

Question

The server receives byte array as inputstream,and I wrapped the stream with DataInputStream.The first 2 bytes indicate the length of the byte array,and the second 2 bytes indicate a flag,and the next bytes consist of the content.My problem is the content contains unicode character which has 2 bytes.How can I read the unicode char ? My prev code is:

    DataInputStream dis = new DataInputStream(is);
    int length = dis.readUnsignedShort();
    int flag = dis.readUnsignedShort();

    String content = "";
    int c;
    for (int i = 0; i < length - 4; i++) {
        c = dis.read();
        content += (char) c;
    }

It only can read ascII.thxs for your helps!

See the answer by BalusC here: http://stackoverflow.com/questions/4505057/datainputstream-and-utf-8 — L.Butz, Nov 04 '13 at 09:38
See also the [readChar](http://docs.oracle.com/javase/7/docs/api/java/io/DataInputStream.html#readChar()) method if these code points are big-endian UTF-16. — McDowell, Nov 04 '13 at 17:04

score 0 · Accepted Answer · answered Nov 04 '13 at 09:39

0

This depends on encoding scheme of your input. If you do not want to do the heavy-lifting, you could use Apache IOUtils and convert the bytes to unicode string. Example : IOUtils.toString(bytes, "UTF-8")

answered Nov 04 '13 at 09:39

Karthik

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I have solved my problem using:String s = new String(bytes, "UTF-8"); I think it is similar to your solution~thx as well – Leo Xu Nov 05 '13 at 03:07

Java How to read unicode characters in socket?

1 Answers1