Project Structure:
index.jsp
<%--
Document : index
Created on : 29 Jun, 2013, 11:03:21 PM
Author : Aravind Sankaran
--%>
<%@page import="com.dictionary.common.LoadMyProperties"%>
<%@page import="com.dictionary.bean.DictionaryBean"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%
DictionaryBean bean=new DictionaryBean();
LoadMyProperties loadMyProperties=new LoadMyProperties();
bean=loadMyProperties.getMyPropertiesFile(bean);
String typeaword=bean.getTypeaword();
%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Dictionary</title>
<script type="text/javascript">
function loadXMLDoc1()
{
var xmlhttp;
var word=document.getElementById("word").value;
var urls="getmeaning.jsp?word="+word;
if (window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}
else
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4)
{
document.getElementById("err1").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET",urls,true);
xmlhttp.send();
}
</script>
</head>
<body>
<table>
<tr>
<td>
<form method="post" action="/Dictionary/Login">
<table>
<tr>
<td></td><td></td><td><b><a href="" style="text-decoration: blink;">Login here </a></b></td>
</tr>
<tr>
<td>User Name</td><td> </td><td><input type="text" name="username"></td>
</tr>
<tr>
<td>Password</td><td> </td><td><input type="password" name="password"></td>
</tr>
<tr><td> </td>
<td></td><td><input type="submit" value="login" ></td>
</tr>
</table>
</form>
</td>
</tr>
</table>
<p>
<center>
<table width="30%" border="0">
<tr>
<td> </td>
<td><b>Dictionary: </b></td>
<td><b>The universe in alphabetical order</b></td>
<td> </td>
</tr><br><br>
<tr>
<td> </td>
<td></td>
<td></td>
<td> </td>
</tr><br><br>
<tr>
<td> </td>
<td><b><%=typeaword%></b></td>
<td><input type="text" name="word" id="word" onkeyup="loadXMLDoc1()"></td>
<td> </td>
</tr>
</table>
</center><br><br>
<span id="err1"> </span>
</p>
</body>
</html>
getmeaning.jsp
<%--
Document : getmeaning
Created on : 29 Jun, 2013, 11:26:25 PM
Author : Aravind Sankaran
--%>
<%@page import="com.dictionary.common.LoadMyProperties"%>
<%@page import="com.dictionary.bean.DictionaryBean"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%String word=request.getParameter("word");%>
<%! static Connection con;%>
<%
DictionaryBean bean=new DictionaryBean();
LoadMyProperties loadMyProperties=new LoadMyProperties();
bean=loadMyProperties.getMyPropertiesFile(bean);
String dbUrl=bean.getDbUrl();
String dbName=bean.getDbName();
String dbUserName=bean.getDbUserName();
String dbPassword=bean.getDbPassword();
String driverName=bean.getDriverName();
String typeaword=bean.getTypeaword();
String errorMessage=bean.getErrorMessage();
String newline=bean.getNewline();
String outputmeaning=bean.getOutputmeaning();
Class.forName(driverName);
con=DriverManager.getConnection(dbUrl, dbUserName, dbPassword);
Statement s=con.createStatement();
ResultSet rs=s.executeQuery("select * from wordmeaning where word like '"+word+"%'");
%>
<!DOCTYPE html>
<%
if(rs.next())
{
String words=rs.getString("word");
String meanings=rs.getString("meaning");
out.println("<center>");
out.println("<table width='30%'>");
out.println("<tr>");
out.println("<td><b><font size='5' color=black>"+words+":-</font></b></td>");
out.println("<td> </td>");
out.println("<td><b><font color=red></font></b></td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td></td>");
out.println("<td> </td>");
out.println("<td></td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td><b><font color=black>"+outputmeaning+"</font></b></td>");
out.println("<td> </td>");
out.println("<td><b><font color=red>"+meanings+"</font></b></td>");
out.println("</tr>");
out.println("</table>");
out.println("<center>");
out.println("<tr>");
out.println("<td></td>");
out.println("<td><font color=black>"+newline+"</font></b></td>");
out.println("<td></td>");
out.println("</tr>");
}else {
out.println("<center>");
out.println("<table>");
out.println("<tr>");
out.println("<td><b><font color=black>"+errorMessage+"</font></b></td>");
out.println("</tr>");
out.println("</table>");
out.println("</center>");
}
rs.close();
s.close();
con.close();
%>
admin.jsp
<%--
Document : admin
Created on : 29 Jun, 2013, 11:28:15 PM
Author : Aravind Sankaran
--%>
<%@page import="com.dictionary.common.LoadMyProperties"%>
<%@page import="com.dictionary.bean.DictionaryBean"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<% String un=request.getParameter("un");%>
<%
DictionaryBean bean=new DictionaryBean();
LoadMyProperties loadMyProperties=new LoadMyProperties();
bean=loadMyProperties.getMyPropertiesFile(bean);
String typeaword=bean.getTypeaword();
%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<p>
<form method="post" action="/Dictionary/AddNewWords">
<center>
<table width="50%" border="0">
<tr>
<td> </td>
<td><b>Word</b></td>
<td><input type="text" name="word" ></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><b></b></td>
<td></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><b>Meaning</b></td>
<td><textarea name="meaning" rows="5" cols="18"></textarea></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><b></b></td>
<td> <input type="submit" value="SUBMIT"></td>
<td> </td>
</tr>
</table>
</form>
</p>
</body>
</html>
com.dictionary.bean package
1.DictionaryBean.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.dictionary.bean;
/**
*
* @author Aravind Sankaran
*/
public class DictionaryBean {
private String userName;
private String userPassword;
private String dbName;
private String dbUserName;
private String dbPassword;;
private String dbUrl;
private String word;
private String meaning;
private String driverName;
private String typeaword;
private String errorMessage;
private String newline;
private String outputmeaning;
private boolean valid;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public String getDbName() {
return dbName;
}
public String getDriverName() {
return driverName;
}
public void setDriverName(String driverName) {
this.driverName = driverName;
}
public String getErrorMessage() {
return errorMessage;
}
public void setErrorMessage(String errorMessage) {
this.errorMessage = errorMessage;
}
public String getNewline() {
return newline;
}
public void setNewline(String newline) {
this.newline = newline;
}
public String getOutputmeaning() {
return outputmeaning;
}
public void setOutputmeaning(String outputmeaning) {
this.outputmeaning = outputmeaning;
}
public String getTypeaword() {
return typeaword;
}
public void setTypeaword(String typeaword) {
this.typeaword = typeaword;
}
public void setDbName(String dbName) {
this.dbName = dbName;
}
public String getDbPassword() {
return dbPassword;
}
public void setDbPassword(String dbPassword) {
this.dbPassword = dbPassword;
}
public String getDbUrl() {
return dbUrl;
}
public void setDbUrl(String dbUrl) {
this.dbUrl = dbUrl;
}
public String getDbUserName() {
return dbUserName;
}
public void setDbUserName(String dbUserName) {
this.dbUserName = dbUserName;
}
public String getMeaning() {
return meaning;
}
public void setMeaning(String meaning) {
this.meaning = meaning;
}
public boolean isValid() {
return valid;
}
public void setValid(boolean valid) {
this.valid = valid;
}
public String getWord() {
return word;
}
public void setWord(String word) {
this.word = word;
}
}
com.dictionary.common package
1. AddNewWords.java
package com.dictionary.common;
import com.dictionary.bean.DictionaryBean;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class AddNewWords extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// processRequest(request, response);
String word=request.getParameter("word");
String meaning=request.getParameter("meaning");
DictionaryBean db=new DictionaryBean();
db.setWord(word);
db.setMeaning(meaning);
db=Operations.addNewWord(db);
if(db.isValid()){
HttpSession session=request.getSession(true);
session.setAttribute("admin", db);
response.sendRedirect("admin.jsp");
}else{
response.sendRedirect("index.jsp");
}
}
}
2.DbConnect.java
package com.dictionary.common;
import com.dictionary.bean.DictionaryBean;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
/**
*
* @author Aravind Sankaran
*/
public class DbConnect {
static Connection con=null;
public static Connection getConnection(){
try{
DictionaryBean bean=new DictionaryBean();
LoadMyProperties loadMyProperties=new LoadMyProperties();
bean=loadMyProperties.getMyPropertiesFile(bean);
String dbUrl=bean.getDbUrl();
String dbName=bean.getDbName();
String dbUserName=bean.getDbUserName();
String dbPassword=bean.getDbPassword();
String driverName=bean.getDriverName();
Class.forName(driverName);
try{
con=DriverManager.getConnection(dbUrl,dbUserName,dbPassword);
System.out.println("connection occured");
}
catch(SQLException se){
}
}catch(ClassNotFoundException e){
}
return con;
}
}
3.LoadMyProperties.java
package com.dictionary.common;
import com.dictionary.bean.DictionaryBean;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
/**
*
* @author Aravind Sankaran
*/
public class LoadMyProperties {
Properties configProp=new Properties();
public DictionaryBean getMyPropertiesFile(DictionaryBean myBean){
InputStream in = this.getClass().getClassLoader().getResourceAsStream("com/dictionary/resources/db.properties");
try {
configProp.load(in);
String dbUrl=configProp.getProperty("dbUrl");
String dbName=configProp.getProperty("dbName");
String dbUserName=configProp.getProperty("dbUserName");
String dbPassword=configProp.getProperty("dbPassword");
String driverName=configProp.getProperty("driverName");
String typeaword=configProp.getProperty("typeaword");
String errorMessage=configProp.getProperty("errorMessage");
String newline=configProp.getProperty("newline");
String outputmeaning=configProp.getProperty("outputmeaning");
myBean.setDbUrl(dbUrl);
myBean.setDbName(dbName);
myBean.setDbUserName(dbUserName);
myBean.setDbPassword(dbPassword);
myBean.setDriverName(driverName);
myBean.setTypeaword(typeaword);
myBean.setErrorMessage(errorMessage);
myBean.setNewline(newline);
myBean.setOutputmeaning(outputmeaning);
myBean.setValid(true);
} catch (IOException e) {
e.printStackTrace();
}
return myBean;
}
}
4.Login.java
package com.dictionary.common;
import com.dictionary.bean.DictionaryBean;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class Login extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// processRequest(request, response);
String userName=request.getParameter("username");
String userPassword=request.getParameter("password");
DictionaryBean db=new DictionaryBean();
db.setUserName(userName);
db.setUserPassword(userPassword);
db=Operations.login(db);
if(db.isValid()){
HttpSession session=request.getSession(true);
session.setAttribute("admin", db);
String un=db.getUserName();
response.sendRedirect("admin.jsp?un="+un);
}else{
response.sendRedirect("index.jsp");
}
}
}
5. Operations.java
package com.dictionary.common;
import com.dictionary.bean.DictionaryBean;
import java.sql.*;
/**
*
* @author Aravind Sankaran
*/
public class Operations {
public static DictionaryBean login(DictionaryBean bean){
String userName=bean.getUserName();
String userPassword=bean.getUserPassword();
String query="select * from login where username='"+userName+"' AND password='"+userPassword+"'";
Connection con=DbConnect.getConnection();
try {
Statement st=con.createStatement();
ResultSet rs=st.executeQuery(query);
boolean more=rs.next();{
if(!more){
System.out.print("no more records");
bean.setValid(false);
}else if(more){
String username=rs.getString("username");
String password=rs.getString("password");
bean.setUserName(username);
bean.setUserPassword(password);
bean.setValid(true);
}
}
} catch (SQLException ex) {
System.out.println("error occured in Login Operations");
}
return bean;
}
public static DictionaryBean addNewWord(DictionaryBean bean){
String word=bean.getWord();
String meaning=bean.getMeaning();
PreparedStatement ps= null;
String query="insert into wordmeaning(word,meaning) values(?,?)";
Connection con=DbConnect.getConnection();
try {
ps=(PreparedStatement) con.prepareStatement(query);
ps.setString(1, word);
ps.setString(2, meaning);
ps.executeUpdate();
bean.setWord(word);
bean.setMeaning(meaning);
bean.setValid(true);
} catch (SQLException ex) {
System.out.println("error occured in adding new word ");
}
return bean;
}
}
}
com.dictionary.resources package
db.properties
dbUrl=jdbc:mysql://localhost:3306/dictionary?
dbName=dictionary
dbUserName=root
dbPassword=root
driverName=com.mysql.jdbc.Driver
typeaword=Type a word:
errorMessage=If a word in the dictionary were misspelled, how would we know?
newline=-----------------------
outputmeaning=Meaning:
jar file:
mysql-connector-java-3.1.14-bin.jar
Output:
