search code in servlet to mysql?

Question

what is searching code in servlet to mysql?

I need simple coding anyone pls help me

i created a register page (Name,Qualification,Country,State) using with Html

Answer 1

I create a simple demo project which you mention, i use jstl:core library which can be download from here

web.xml

    
    
        TestServlet
        
            index.html
            index.htm
            index.jsp
            default.html
            default.htm
            default.jsp
        
        Archetype Created Web Application
        
            MyController
            controller.MyController
        
        
            MyController
            /MyController
        

index.jsp

 <%@ page
        language="java"
        contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    
    <%@ taglib
        uri="http://java.sun.com/jsp/jstl/core"
        prefix="c"%>
    
    
    
    
    
    

         
    
        
                

            

                    
${user.id}
                    
${user.name}
                
            
        
    
    

MyController.java

package controller;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import domain.User;

public class MyController extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public MyController() {
        super();
    }

    protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {

        RequestDispatcher rd = null;
        rd = request.getRequestDispatcher("index.jsp");
        rd.forward(request, response);
    }

    protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // Get name request parameter
        String name = request.getParameter("name");

        // User user1 = new User();
        // User user2 = new User();
        // user1.setId(0);
        // user1.setName("test1");
        // user2.setId(0);
        // user2.setName("test2");

        List users = new ArrayList();

        // users.add(user1);
        // users.add(user2);



         //DB Operation query your users
         users=query(name);

        request.setAttribute("users", users);

        RequestDispatcher rd = null;
        rd = request.getRequestDispatcher("index.jsp");
        rd.forward(request, response);
    }
}

so MyController#query method should be called from your service layer, and query according to your criteria(in demo name or can be anything)

EDIT: Be sure user has get property methods, like getId and getName in this example.