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| package Exercise5;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import javax.sql.*;
import java.lang.*;
public class Inventory1 extends HttpServlet
{
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
String user = "aglandon";
String pass = "uplykqth";
String dburl="JDBC:mysql://localhost/aglandon";
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>Mon Inventory</title></head>");
out.println("<body>");
out.println(" <FORM METHOD=\"GET\" ACTION=\"http://136.206.25.35/aglandon/servlet/Exercise5.Inventory\">");
out.println(" <h3>Add/update a product</h3>");
out.println(" ID : <INPUT TYPE=\"text\" NAME=\"ID\" SIZE=\"20\"> <p>");
out.println(" Name : <INPUT TYPE=\"text\" NAME=\"Name\" SIZE=\"20\"> <p>");
out.println(" Description : <INPUT TYPE=\"text\" Description=\"ID\" SIZE=\"20\"> <p>");
out.println(" Price : <INPUT TYPE=\"text\" NAME=\"Price\" SIZE=\"20\"> <p>");
out.println(" Quantity: <INPUT TYPE=\"text\" NAME=\"Quantity\" SIZE=\"20\"> <p>");
try{
String pilote ="com.mysql.jdbc.Driver";
Class.forName(pilote);
}catch(ClassNotFoundException cnfe){
out.println("Driver introuvable : ");
cnfe.printStackTrace();}
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try{
String createQuery="CREATE TABLE IF NOT EXISTS inventory (ProductID INTEGER UNSIGNED PRIMARY KEY, ProductName VARCHAR(30), ProductDescription VARCHAR(40),ProductPrice INTEGER UNSIGNED,Quantity INTERGER UNSIGNED)";
connection = DriverManager.getConnection(dburl,user,pass);
statement = connection.createStatement();
statement.executeUpdate(createQuery);
}
catch(SQLException sqle){}
finally{
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {}
statement = null;
}
if (connection!= null) {
try {
connection.close();
} catch (SQLException e) {}
connection= null;
}
}
try{
String Id="";
Id=request.getParameter("ID");
int id=Integer.parseInt(Id);
String name="";
name=request.getParameter("Name");
String description="";
description=request.getParameter("Description");
String Pryce="";
Pryce=request.getParameter("Price");
int price=Integer.parseInt(Pryce);
String Quantiti="";
Quantiti=request.getParameter("Quantity");
int quantity=Integer.parseInt(Quantiti);
connection = DriverManager.getConnection(dburl,user,pass);
statement = connection.createStatement();
String addElementQuery="INSERT INTO inventory (ProductID, ProductName, ProductDescription, ProductPrice, Quantity) VALUES (" +id+ "," + name + "," + description + ", " + price + ", " + quantity+ ");";
statement.executeUpdate(addElementQuery);
}catch(SQLException sqle){}
finally{
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {}
statement = null;
}
if (connection!= null) {
try {
connection.close();
} catch (SQLException e) {}
connection= null;
}
}
try{
out.println("1");
connection = DriverManager.getConnection(dburl,user,pass);
statement = connection.createStatement();
String selectQuery="SELECT * FROM inventory";
statement.executeQuery(selectQuery);
resultSet = statement.getResultSet();
out.println("<table border=\"1\" cellspacing=\"1\">");
out.println("<TR><TD>Product ID</TD> <TD>Product Name</TD> <TD>Product Description</TD> <TD> Product Price (&eur;) </TD> <TD> Quantity </TD></TR>");
while(resultSet.next()){
out.println("<TR><TD>" + resultSet.getInt("ProductID") + "</TD> <TD>"+ resultSet.getString("ProductName") +"</TD> <TD>"+resultSet.getString("ProductDescription")+"</TD> <TD>"+resultSet.getInt("ProductPrice")+" (&eur;) </TD> <TD>"+ resultSet.getInt("Quantity")+" </TD></TR>");
}
}catch(SQLException sqle){}
finally{if (resultSet != null)
{
try {
resultSet.close();
} catch (SQLException e) {}
resultSet= null;
}
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {}
statement = null;
}
if (connection!= null) {
try {
connection.close();
} catch (SQLException e) {}
connection= null;
}
}
out.println(" <INPUT TYPE=\"submit\" VALUE=\"Submit\"> <INPUT TYPE=\"reset\" VALUE=\"reset\"> <p>");
out.println("</FORM>");
out.print("</table>");
out.println("</body>");
out.println("</html>");
}
} |
