import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import com.mysql.jdbc.Statement;
import java.sql.ResultSet;
 
public class indexServlet extends HttpServlet {
 
//Connected MySQL
 
    private String url = "jdbc:mysql://127.0.0.1:3306/gate"+"?autoReconnect=true&useUnicode=true&characterEncoding=utf8"+
              "&SET NAMES utf8";
    private String name = "root";
    private String password = "Mesei";
     
    private Connection currentConnect;
    
    public void initDisconnection(){
        try {
            currentConnect.close();
         }
         catch (SQLException e) {
                e.printStackTrace();
         }
    }
 
    public void initConnection(){
//FIRST register and download driver
        try {
            DriverManager.registerDriver(new org.gjt.mm.mysql.Driver());
        }
        catch (SQLException e) {
            e.printStackTrace();
        }
        
        try{
            Class.forName("com.mysql.jdbc.Driver");
        }
        catch (ClassNotFoundException e){
            e.printStackTrace();
        }
 
//SECOND Connect to database
        try {
                currentConnect = DriverManager.getConnection(url, name, password);
        }
        catch (SQLException e) {
                e.printStackTrace();
        }
    }
 
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
 
        initConnection();   
        PrintWriter out = response.getWriter();
 
         try {
             Statement st = (Statement) currentConnect.createStatement();
             String query = ("select * fx_doc");
             ResultSet resultQuery = null;
             resultQuery = st.executeQuery(query);
 
//step in cycle after execution query, and create Vector object
             while (resultQuery.next()) {
                 out.println(resultQuery.getString("theme"));       
             }
             out.close();
         }
         catch (SQLException e) {
             e.printStackTrace();
         }        
        initDisconnection();
    }
}

<?xml version="1.0" encoding="ISO-8859-1"?> 
<!DOCTYPE web-app 
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
  "http://java.sun.com/dtd/web-app_2_3.dtd"> 
<web-app> 
  <servlet> 
    <servlet-name>indexServlet</servlet-name> 
    <servlet-class>indexServlet</servlet-class> 
  </servlet> 
  <servlet-mapping> 
    <servlet-name>indexServlet</servlet-name> 
    <url-pattern>/test</url-pattern> 
  </servlet-mapping> 
</web-app>

protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
   …
   response.setCharacterEncoding("UTF-8");
   response.setContentType("text/html");
   PrintWriter pw = response.getWriter();
   …
}