Thursday, January 1, 2015

Simple web application not working
































I am trying to develop a new web application which takes in data from a form and stores data in a database.I have included all the three files join.jsp(the form which takes in data),reg.java(servlet) and JavaConncetDb(method which connects db and servlet).Please do look through and let me know my mistake. I get a 404 error when i try load the web application.Please help me as i beginner in java and trying to learn new things, i am stuck here since a long time
































































My file structure in eclipse
































Simple web application not working-untitled.jpg
































































The error I am getting
































Simple web application not working-error.jpg
































join.jsp
































<%@ page language="java" contentType="text/html; charset=ISO-8859-1"































pageEncoding="ISO-8859-1"%>































<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://ift.tt/kTyqzh">































<html>































<head>































<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">































<title>Insert title here</title>































</head>































<body bgcolor="red">































<form name="register" action="register" method=post>































<p>FIRSTNAME <input type="text" name="firstname"><br>































<p>LASTNAME <input type="text" name="lastname">































<p>EMAILID <input type="text" name="emailid">































<p>USERNAME<input type="text" name="username">































<p>PASSWORD<input type="password" name="password"><br>































<input type="submit" value="submit">
































</form>
































</body>































</html>
































reg.java(servlet)
































package logintesting;
































import java.io.IOException;































import java.io.PrintWriter;































import java.sql.Connection;































import java.sql.SQLException;
































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 oracle.jdbc.OraclePreparedStatement;
































/**































* Servlet implementation class reg































*/































@WebServlet("/reg")































public class reg extends HttpServlet {































private static final long serialVersionUID = 1L;
































/**































* @see HttpServlet#HttpServlet()































*/































public reg() {































super();































// TODO Auto-generated constructor stub































}
































/**































* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)































*/































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































// TODO Auto-generated method stub































}
































/**































* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)































*/































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































// TODO Auto-generated method stub
































PrintWriter out=response.getWriter();































response.setContentType("text/html");































String firstname,lastname,email,username,password;































firstname=request.getParameter("firstname").toStri ng();































lastname=request.getParameter("lastname").toString ();































email=request.getParameter("emailid").toString();































username=request.getParameter("username").toString ();































password=request.getParameter("password").toString ();































Connection con=JavaConnectDb.connectDb();































try{































String sql="insert into reg values('"+firstname+"','"+lastname+"','"+email+"', '"+username+"','"+password+"')";































OraclePreparedStatement pst= (OraclePreparedStatement) con.prepareStatement(sql);































pst.execute();































out.println("register successfully");































}































catch(Exception e)































{































out.println(e);































}
































finally{
































try {































con.close();































} catch (SQLException e) {































// TODO Auto-generated catch block































e.printStackTrace();































}































}
































}































}
































javaconnect.java(method used in servlet to conncet to database)































package logintesting;
































import java.sql.Connection;































import java.sql.DriverManager;
































public class JavaConnectDb {
































public static Connection connectDb()































{































Connection conn=null;
































try{































Class.forName("oracle.jdbc.driver.OracleDriver");































conn=DriverManager.getConnection("jdbc:oracle:thin :@localhost:1521:orcl","SYSTEM","oracle");































}































catch(Exception e)































{































System.err.println(e);































}































return conn;































}































}































































No comments:

Post a Comment