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kishanrajput23kishanrajput23
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Merge pull request #416 from vidyaa18/vidya
Add Online voting system using java servlets
2 parents 27982b2 + 143b208 commit 8528255

22 files changed

+1296
-0
lines changed

‎Online Voting System/Online_Voting_System/build/classes/vote/com/servlet/DBUtilR.class

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‎Online Voting System/Online_Voting_System/build/classes/vote/com/servlet/againvote.class

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‎Online Voting System/Online_Voting_System/build/classes/vote/com/servlet/loginpage.class

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‎Online Voting System/Online_Voting_System/build/classes/vote/com/servlet/registration.class

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‎Online Voting System/Online_Voting_System/build/classes/vote/com/servlet/thankyou.class

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‎Online Voting System/Online_Voting_System/build/classes/vote/com/servlet/vote.class

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‎Online Voting System/Online_Voting_System/src/main/java/vote/com/servlet/DBUtilR.java

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package vote.com.servlet;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.SQLException;
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public class DBUtilR {
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static Connection conn = null;
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static
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{
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try {
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Class.forName("com.mysql.jdbc.Driver");
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conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/votingdb", "Vaishnavi", "Nelavetla@537");
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if(!conn.isClosed()) {
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System.out.println("Connection established");
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}
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} catch (ClassNotFoundException | SQLException e) {
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System.out.println("Error in DBUtilFile");
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e.printStackTrace();
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}
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}
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public static Connection getDBConnection() {
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// TODO Auto-generated method stub
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return conn;
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}
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}

‎Online Voting System/Online_Voting_System/src/main/java/vote/com/servlet/againvote.java

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package vote.com.servlet;
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import java.io.IOException;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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public class againvote extends HttpServlet {
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private static final long serialVersionUID = 1L;
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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doGet(request, response);
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}
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}

‎Online Voting System/Online_Voting_System/src/main/java/vote/com/servlet/loginpage.java

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package vote.com.servlet;
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import jakarta.servlet.RequestDispatcher;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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public class loginpage extends HttpServlet {
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private static final long serialVersionUID = 1L;
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final static Connection con=DBUtilR.getDBConnection();
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static PreparedStatement ps = null;
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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PrintWriter out = response.getWriter();
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String card=request.getParameter("cardno");
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Integer pin=Integer.parseInt(request.getParameter("pin"));
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try {
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if(check(card,pin))
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{
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out.print("Successful Login...You Can Vote Now");
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RequestDispatcher rd=request.getRequestDispatcher("vote.html");
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rd.include(request,response);
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}
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else {
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out.print("Sorry username or password error , Make new account");
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RequestDispatcher rd=request.getRequestDispatcher("registration.html");
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rd.include(request,response);
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}
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}
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catch (SQLException e) {
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e.printStackTrace();
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}
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}
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static boolean check(String card,Integer pin) throws SQLException
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{
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boolean r=false;
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ps=con.prepareStatement("Select * from register where cardno=? and pin=?");
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ps.setString(1,card);
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ps.setInt(2,pin);
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ResultSet rs=ps.executeQuery();
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r=rs.next();
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return r;
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}
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static boolean checkvote(String card) throws SQLException
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{
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boolean r=false;
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ps=con.prepareStatement("Select * from vote where cardno=?");
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ps.setString(1,card);
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ResultSet rs=ps.executeQuery();
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r=rs.next();
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return r;
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}
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}

‎Online Voting System/Online_Voting_System/src/main/java/vote/com/servlet/registration.java

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package vote.com.servlet;
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import jakarta.servlet.RequestDispatcher;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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public class registration extends HttpServlet {
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private static final long serialVersionUID = 1L;
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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response.setContentType("text/html");
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PrintWriter out = response.getWriter();
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String f=request.getParameter("fname");
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String c=request.getParameter("cardno");
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String cn=request.getParameter("cono");
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String ad=request.getParameter("add");
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String dob=request.getParameter("dob");
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String email=request.getParameter("email");
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String pin=request.getParameter("pin");
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try
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{
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Class.forName("com.mysql.jdbc.Driver");
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Connection con=(Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/votingdb","Vaishnavi","Nelavetla@537");
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PreparedStatement ps=con.prepareStatement("insert into register values(?,?,?,?,?,?,?)");
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ps.setString(1,f);
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ps.setString(2,c);
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ps.setString(3,cn);
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ps.setString(4,ad);
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ps.setString(5,dob);
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ps.setString(6,email);
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ps.setString(7,pin);
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int i=ps.executeUpdate();
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if(i>0)
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{
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out.print("Successfully your account has been created...PLEASE LOGIN");
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RequestDispatcher rd=request.getRequestDispatcher("loginpage.html");
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rd.include(request,response);
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}
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else
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{
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out.print("Failed account creation try again");
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RequestDispatcher rd=request.getRequestDispatcher("registration.html");
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rd.include(request,response);
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}
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}
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catch (Exception e2) {
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out.print("Invalid , Failed account creation try again "+e2);
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RequestDispatcher rd=request.getRequestDispatcher("registration.html");
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rd.include(request,response);
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}
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out.close();
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}
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protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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doPost(request, response);
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}
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}

‎Online Voting System/Online_Voting_System/src/main/java/vote/com/servlet/thankyou.java

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package vote.com.servlet;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.IOException;
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public class thankyou extends HttpServlet {
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private static final long serialVersionUID = 1L;
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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}
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}

‎Online Voting System/Online_Voting_System/src/main/java/vote/com/servlet/vote.java

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package vote.com.servlet;
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import jakarta.servlet.RequestDispatcher;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.SQLIntegrityConstraintViolationException;
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public class vote extends HttpServlet {
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private static final long serialVersionUID = 1L;
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final static Connection con=DBUtilR.getDBConnection();
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static PreparedStatement ps = null;
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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response.setContentType("text/html");
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PrintWriter out = response.getWriter();
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String f=request.getParameter("cardno");
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String l=request.getParameter("party");
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try
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{
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Class.forName("com.mysql.jdbc.Driver");
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Connection con=(Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/votingdb","Vaishnavi","Nelavetla@537");
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if(checkLogin(f))
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{
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ps=con.prepareStatement("insert into vote values(?,?)");
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ps.setString(1,f);
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ps.setString(2,l);
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int i=ps.executeUpdate();
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if(i>0)
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{
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out.print("Your Vote has been submitted successfully...");
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RequestDispatcher rd=request.getRequestDispatcher("thankyou.html");
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rd.include(request,response);
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}
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else
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{
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out.print("Failed to submit vote, try again");
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RequestDispatcher rd=request.getRequestDispatcher("vote.html");
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rd.include(request,response);
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}
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}
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else
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{
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out.print("Please enter correct card number");
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RequestDispatcher rd=request.getRequestDispatcher("vote.html");
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rd.include(request,response);
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}
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}
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catch (SQLIntegrityConstraintViolationException e2) {
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out.print("Please select any party");
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RequestDispatcher rd=request.getRequestDispatcher("vote.html");
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rd.include(request,response);
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}
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catch(Exception e)
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{
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out.print(" " +e);
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RequestDispatcher rd=request.getRequestDispatcher("vote.html");
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rd.include(request,response);
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}
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out.close();
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}
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protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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doPost(request, response);
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}
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static boolean checkLogin(String card) throws SQLException
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{
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boolean r=false;
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ps=con.prepareStatement("Select * from register where cardno = ?");
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ps.setString(1,card);
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ResultSet rs=ps.executeQuery();
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r=rs.next();
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return r;
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}
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}

‎Online Voting System/Online_Voting_System/src/main/webapp/META-INF/MANIFEST.MF

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Manifest-Version: 1.0
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Class-Path:
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‎Online Voting System/Online_Voting_System/src/main/webapp/WEB-INF/lib/mysql-connector-java-8.0.28.jar

2.36 MB
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‎Online Voting System/Online_Voting_System/src/main/webapp/WEB-INF/lib/servlet-api.jar

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‎Online Voting System/Online_Voting_System/src/main/webapp/WEB-INF/web.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="https://jakarta.ee/xml/ns/jakartaee" xmlns:web="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd" version="5.0">
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<servlet>
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<description></description>
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<display-name>againvote</display-name>
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<servlet-name>againvote</servlet-name>
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<servlet-class>vote.com.servlet.againvote</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>againvote</servlet-name>
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<url-pattern>/againvote</url-pattern>
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</servlet-mapping>
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<display-name>Online_Voting_System</display-name>
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<welcome-file-list>
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<welcome-file>againvote.html</welcome-file>
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<welcome-file>loginpage.html</welcome-file>
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<welcome-file>registration.html</welcome-file>
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<welcome-file>thankyou.html</welcome-file>
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<welcome-file>vote.html</welcome-file>
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</welcome-file-list>
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<servlet>
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<description></description>
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<display-name>DBUtilR</display-name>
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<servlet-name>DBUtilR</servlet-name>
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<servlet-class>vote.com.servlet.DBUtilR</servlet-class>
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</servlet>
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<servlet-mapping>
28+
<servlet-name>DBUtilR</servlet-name>
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<url-pattern>/DBUtilR</url-pattern>
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</servlet-mapping>
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<servlet>
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<description></description>
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<display-name>loginpage</display-name>
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<servlet-name>loginpage</servlet-name>
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<servlet-class>vote.com.servlet.loginpage</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>loginpage</servlet-name>
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<url-pattern>/loginpage</url-pattern>
40+
</servlet-mapping>
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<servlet>
42+
<description></description>
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<display-name>registration</display-name>
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<servlet-name>registration</servlet-name>
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<servlet-class>vote.com.servlet.registration</servlet-class>
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</servlet>
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<servlet-mapping>
48+
<servlet-name>registration</servlet-name>
49+
<url-pattern>/registration</url-pattern>
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</servlet-mapping>
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<servlet>
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<description></description>
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<display-name>thankyou</display-name>
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<servlet-name>thankyou</servlet-name>
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<servlet-class>vote.com.servlet.thankyou</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>thankyou</servlet-name>
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<url-pattern>/thankyou</url-pattern>
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</servlet-mapping>
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<servlet>
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<description></description>
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<display-name>vote</display-name>
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<servlet-name>vote</servlet-name>
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<servlet-class>vote.com.servlet.vote</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>vote</servlet-name>
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<url-pattern>/vote</url-pattern>
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</servlet-mapping>
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</web-app>

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