Question

Statement st=(Statement) sqlcon.createStatement();
ResultSet p=st.executeQuery("SELECT * FROM `chat`.`online_users`");

I have got the data from the database through the object of ResultSet but when i am sending it to the client through sockets it is giving an error. It is not serializable. How to send data and receive data retrieved through ResultSet across socket?

Answer 1

Read the data from the ResultSet, push it in a List then send your List. All the implementations like ArrayList already implement Serializable interface, you can read this answer to know more about List Serialization.