java source code: Student Management Apps - Web application

Index.JSP

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Student Details Entering page</title>

</head>
<body>

<form action="StudentServlet">

Please enter the name of Student <input type="text" name="name" /><br>
Please enter the roll NO of Student <input type="text" name="rollNo" /><br>
Please enter the age of Student <input type="text" name="age" /><br>
Please enter the class of Student <input type="text" name="stream" /><br>
<input type="submit" value="submit">

</form>

</body>
</html>

Web.xml ( Deployment Descriptor)

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>StudentApp</display-name>



<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>

Student Servlet

package com.konzern.studentapp.servlets;

import java.io.IOException;
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.konzern.studentapp.model.Student;
import com.konzern.studentapp.service.StudentService;
import com.konzern.studentapp.service.StudentServiceInf;

/**
* Servlet implementation class StudentServlet
*/
@WebServlet(description = "Student Details servlet", urlPatterns = { "/StudentServlet" })
public class StudentServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public StudentServlet() {
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
Student student = new Student();
student.setName(request.getParameter("name"));
student.setRollNo(Integer.parseInt(request.getParameter("rollNo")));
student.setAge(Integer.parseInt(request.getParameter("age")));
student.setStream(request.getParameter("stream"));
StudentServiceInf service = new StudentService();
String message = service.insert(student);
response.getWriter().append(message).append(request.getContextPath());
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}

}

Student POJO object

/**

package com.konzern.studentapp.model;

/**

* @author Athul kannoth

public class Student {

private String name =null;

private int rollNo = 0;

private int age = 0;

private String stream= null;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getRollNo() {

return rollNo;

}

public void setRollNo(int rollNo) {

this.rollNo = rollNo;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public String getStream() {

return stream;

}

public void setStream(String stream) {

this.stream = stream;

}

Student Service

/**

package com.konzern.studentapp.service;

import com.konzern.studentapp.model.Student;

/**

* @author Athul kannoth

public interface StudentServiceInf {

public String insert(Student student);

}

/**

package com.konzern.studentapp.service;

import java.sql.SQLException;

import com.konzern.studentapp.dao.StudentDAO;

import com.konzern.studentapp.dao.StudentDAOInf;

import com.konzern.studentapp.model.Student;

/**

* @author Gokul balan

public class StudentService implements StudentServiceInf {

private StudentDAOInf studentDaoInf = null;

private StudentDAOInf getStudentDAO() {

studentDaoInf = new StudentDAO();

return studentDaoInf;

}

@Override

public String insert(Student student) {

try {

return getStudentDAO().insert(student);

// return "success";

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return "Technical Failure";

}

Student DAO

/**

package com.konzern.studentapp.dao;

import java.sql.SQLException;

import com.konzern.studentapp.model.Student;

/**

* @author Apple

public interface StudentDAOInf {

public String insert(Student student) throws SQLException;

}

/**

package com.konzern.studentapp.dao;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.SQLException;

import com.konzern.studentapp.model.Student;

/**

* @author Kouta

public class StudentDAO implements StudentDAOInf {

private Connection getConnection() {

return MysqlConnection.connectionInstance();

}

@Override

public String insert(Student student) throws SQLException {

PreparedStatement p= getConnection().prepareStatement(" insert into ipmanagetable(ipadd,port,date) values(?,?,?)");

p.setString(1,student.getName());

p.setInt(2,student.getAge());

p.setInt(3, student.getRollNo());

p.setString(4, student.getStream());

int output = p.executeUpdate();

return "Student information saved";

}

MySQL Connection Class

/**

* Arjun babu

package com.konzern.studentapp.dao;

import java.sql.DriverManager;

import java.sql.Connection;

/**

* @author Arjun babu

public class MysqlConnection {

public static Connection connectionInstance() {

try {

Class.forName("com.mysql.jdbc.Driver");

Connection con = DriverManager.getConnection("jdbc:mysql://localhost/StudentAppDb", "username", "password");

return con;

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

/**

* @param args

public static void main(String[] args) {

// TODO Auto-generated method stub

}

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January 07, 2010

Student Management Apps - Web application | Complete source code

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