Solved

Searching Data Using servlets in a database

Posted on 2002-03-29
1
145 Views
Last Modified: 2013-11-24
Lets say you hava data in a database and you want a user to enter some text from the html page and then the servlet would be able  to carryout the searching and then give the user the found or no found message e.g. search for an customerId in a database. Provide a example / sample code.
0
Comment
Question by:wbmorapedi
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 

Accepted Solution

by:
rashidkamranbs earned 65 total points
ID: 6905655
let suppose you have customerID text field in ur HTML form that is submitted to a servlet name Find the post method could be (ignore little typo)

public void doPost(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException{
  String customerID=req.getParameter("customerID");
  Connection cn=.... code to get Connection ....
  Statement st=cn.createStatement();
  ResultSet rs=st.executeQuery("select customerID from Customer where customerID='"+customerID+"'");
 if(rs.isBeforeFirst())
   res.getWriter().print("Record Found");
 else
   res.getWriter().print("Record Not Found");
 cn.close();
}

this is not perfect.. ya need to handle all the exceptions etc..  ur question was quite open infact :-)
0

Featured Post

Docker-Compose to Simplify Multi-Container Builds

Our veteran DevOps Author takes you through how to build a multi-container environment, managed with a single utility in order to simplify your deployments.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
A solution for Fortify Path Manipulation.
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.
Suggested Courses

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question