igordcsouza/login.java

## login.java
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package br.uff.dw;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.mysql.jdbc.Driver;

/**
 *
 * @author igorsouza
 */
@WebServlet(name = "Login", urlPatterns = {"/login"})
public class Login extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet Login</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet Login at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
//        processRequest(request, response);
           PrintWriter writer = response.getWriter();
           writer.println("<html><body>");
           try {
               Connection conexao = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/decolar", "root", "");
               Statement stmt = conexao.createStatement();
               ResultSet rs = stmt.executeQuery("Select * from user");
               writer.println("Teste");
                conexao.close();
            } catch (SQLException e) {
                System.out.println(e);
            }

            writer.println("FOI");


           writer.println("</body></html>");
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
	/*
	* To change this license header, choose License Headers in Project Properties.
	* To change this template file, choose Tools \| Templates
	* and open the template in the editor.
	*/
	package br.uff.dw;

	import java.io.IOException;
	import java.io.PrintWriter;
	import java.sql.Connection;
	import java.sql.DriverManager;
	import java.sql.ResultSet;
	import java.sql.SQLException;
	import java.sql.Statement;
	import javax.servlet.ServletException;
	import javax.servlet.annotation.WebServlet;
	import javax.servlet.http.HttpServlet;
	import javax.servlet.http.HttpServletRequest;
	import javax.servlet.http.HttpServletResponse;
	import com.mysql.jdbc.Driver;

	/**
	*
	* @author igorsouza
	*/
	@WebServlet(name = "Login", urlPatterns = {"/login"})
	public class Login extends HttpServlet {

	/**
	* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
	* methods.
	*
	* @param request servlet request
	* @param response servlet response
	* @throws ServletException if a servlet-specific error occurs
	* @throws IOException if an I/O error occurs
	*/
	protected void processRequest(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {
	response.setContentType("text/html;charset=UTF-8");
	try (PrintWriter out = response.getWriter()) {
	/* TODO output your page here. You may use following sample code. */
	out.println("<!DOCTYPE html>");
	out.println("<html>");
	out.println("<head>");
	out.println("<title>Servlet Login</title>");
	out.println("</head>");
	out.println("<body>");
	out.println("<h1>Servlet Login at " + request.getContextPath() + "</h1>");
	out.println("</body>");
	out.println("</html>");
	}
	}

	// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
	/**
	* Handles the HTTP <code>GET</code> method.
	*
	* @param request servlet request
	* @param response servlet response
	* @throws ServletException if a servlet-specific error occurs
	* @throws IOException if an I/O error occurs
	*/
	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {
	processRequest(request, response);
	}

	/**
	* Handles the HTTP <code>POST</code> method.
	*
	* @param request servlet request
	* @param response servlet response
	* @throws ServletException if a servlet-specific error occurs
	* @throws IOException if an I/O error occurs
	*/
	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {
	// processRequest(request, response);
	PrintWriter writer = response.getWriter();
	writer.println("<html><body>");
	try {
	Connection conexao = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/decolar", "root", "");
	Statement stmt = conexao.createStatement();
	ResultSet rs = stmt.executeQuery("Select * from user");
	writer.println("Teste");
	conexao.close();
	} catch (SQLException e) {
	System.out.println(e);
	}

	writer.println("FOI");


	writer.println("</body></html>");
	}

	/**
	* Returns a short description of the servlet.
	*
	* @return a String containing servlet description
	*/
	@Override
	public String getServletInfo() {
	return "Short description";
	}// </editor-fold>

	}