Transfer an object from java to C# -


i have communicate between java , c# need send object through socket server. here server portion written in java , client portion written c#. want send object server(java) , receive in client(c#). can't it.

localjobinfo.java :

package testsocket;  import java.io.serializable;  public class localjobinfo implements serializable{     private string id;     private string message;      public string getid() {         return id;     }      public void setid(string id) {         this.id = id;     }      public string getmessage() {         return message;     }      public void setmessage(string message) {         this.message = message;     } }

server (in java) : 

list<localjobinfo> jobinfolist = new arraylist<localjobinfo>(); localjobinfo jobinfo = new localjobinfo();  jobinfo.setid("1"); jobinfo.setmessage("success");  jobinfolist.add(jobinfo);  serversocket serversocket = new serversocket(4343, 10); socket socket = serversocket.accept(); inputstream = null; outputstream os = null; string received = null; try {        = socket.getinputstream();        os = socket.getoutputstream();        byte[] lenbytes = new byte[4];        is.read(lenbytes, 0, 4);        int len = (((lenbytes[3] & 0xff) << 24) | ((lenbytes[2] & 0xff) << 16)        | ((lenbytes[1] & 0xff) << 8) | (lenbytes[0] & 0xff));        byte[] receivedbytes = new byte[len];        is.read(receivedbytes, 0, len);        received = new string(receivedbytes, 0, len);          system.out.println("server received: " + received);         // sending         byte[] tosendbytes = null;        bytearrayoutputstream bos = new bytearrayoutputstream();        objectoutput out = null;        try {                out = new objectoutputstream(bos);                out.writeobject(jobinfolist);                out.flush();                tosendbytes = bos.tobytearray();        } {                     try {                         bos.close();                     } catch (ioexception ex) {                         // ignore close exception                     }        }         int tosendlen = tosendbytes.length;        byte[] tosendlenbytes = new byte[4];        tosendlenbytes[0] = (byte) (tosendlen & 0xff);        tosendlenbytes[1] = (byte) ((tosendlen >> 8) & 0xff);        tosendlenbytes[2] = (byte) ((tosendlen >> 16) & 0xff);        tosendlenbytes[3] = (byte) ((tosendlen >> 24) & 0xff);        os.write(tosendlenbytes);        os.write(tosendbytes);         try {                 thread.sleep(10000);        } catch (exception ex) {        }    } catch (exception ex) {    }    socket.close();    serversocket.close();

client (in c#) :

string tosend = "hello!";  ipendpoint serveraddress = new ipendpoint(ipaddress.parse("127.0.0.1"), 4343);  socket clientsocket = new socket(addressfamily.internetwork, sockettype.stream, protocoltype.tcp); clientsocket.connect(serveraddress);  // sending int tosendlen = system.text.encoding.ascii.getbytecount(tosend); byte[] tosendbytes = system.text.encoding.ascii.getbytes(tosend); byte[] tosendlenbytes = system.bitconverter.getbytes(tosendlen); clientsocket.send(tosendlenbytes); clientsocket.send(tosendbytes);  // receiving byte[] rcvlenbytes = new byte[4]; clientsocket.receive(rcvlenbytes); int rcvlen = system.bitconverter.toint32(rcvlenbytes, 0); byte[] rcvbytes = new byte[rcvlen]; clientsocket.receive(rcvbytes);  memorystream memstream = new memorystream(); binaryformatter binform = new binaryformatter(); memstream.write(rcvbytes, 0, rcvbytes.length); memstream.seek(0, seekorigin.begin); object obj = (object)binform.deserialize(memstream);

i got exception during deserialize byte[] in c# client. exception message : "the input stream not valid binary format. starting contents (in bytes) are: ac-ed-00-05-73-72-00-17-74-65-73-74-73-6f-63-6b-65 ..."

now question is, how can fix issue in order deserialize in c# code , object sent server in java ?

you need language agnostic serialisation framework. examples include google protocol buffers, asn.1, xsd.

basically need turn schema file (like gpb .proto, or , asn.1 .asn, or .xsd) both pojo , poco classes (for java , c# respectively). that's gpb compiler, or asn.1 compiler can you. end classes in both languages, , these classes serialise / deserialise / common wire format.

xsd more complex; there's xsd.exe microsoft turn .xsd file c#. i've no idea if there's similar java.

i think best place start google protocol buffers - it's free, , going. , supports both java , c#.

i wouldn't touch json schemas; code generation tools seem long way behind. there's plenty of validators tell if message have received, or send, conforms json schema, doesn't formulate message in first place.


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