My client type is android and the language is Java.
This class connects to the server and gets the output stream to the connected server.
class ConnectToServer extends AsyncTask<Void, Void, Void>
{
@Override
protected Void doInBackground(Void... params)
{
try {
socket = new Socket(ip,port);
output = new DataOutputStream(socket.getOutputStream());
Log.d(TAG, "Connected To Server!");
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
class SendToServer extends AsyncTask<Void, Void, Void>
{
//Our Json object
JSONObject obj;// = new JSONObject();
//this class is called when the login button is pressed, it sends the username and password as arguments
public SendToServer(String username, String password)
{
//instantiate the new object
obj = new JSONObject();
try {
//create the first field Type
obj.put("Type", new Integer(1)); //Type is something our Server will switch against-Type 1 = login request
obj.put("username", username); //our server will get username
obj.put("password",password); //our server will get password
} catch (JSONException e) {
e.printStackTrace(); //if we get problems let the developer know
}
}
@Override
protected Void doInBackground(Void... params)
{
String jsonText = obj.toString(); //convert our json object into a string
byte[] b =jsonText.getBytes(Charset.forName("UTF-8")); //convert our json object into a byte array
try {
output.writeInt(b.length); // write length of the message
output.write(b); // write the message
output.flush(); //flush - empties the pipe
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
}
The purpose of this code is to send the server the users credentials.
In this C# Server
private void serverClient()
{
while(true)
{
int len = ns.ReadByte(); //read how much data
if (len == 0) //if this == 0 this means client has quit the program
break; //break out of loop and remove client from array list
if (len > 0) //we have a message
{
//read mess
byte[] message = new byte[len]; //create byte array
ns.Read(message, 0, message.Length); //read into the message byte array
string text = Encoding.ASCII.GetString(message, 0, len);
string text1 = Encoding.UTF8.GetString(message, 0, len); //build string from byte array up to how much data we got.
Console.WriteLine(text1);
}
}
removeClients();
}
So the Android client will send the credentials, but when the SendToServer class is called, the client disconnects from the server.
How can I send a Json string to my C# server so it can then read the string and serialize it into an object, depending on the fields.
