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Java Back-End Web App Tutorial Part 1: Building a Minimal App in Seven Steps

by Mircea Diaconescu, Gerd Wagner

Learn how to build a Java back-end web application with minimal effort, using Java Server Faces (JSF) as the user interface technology, the Java Persistence API (JPA) for object-to-storage mapping, and a MySQL database.

by V.

How to dynamically build a JQPlot graph through the code behind.

How to Capture, Edit and Upload Images Through Your Web Browser

by Dynamsoft

In this article, I’ll show you how to capture images from your web browser, edit them, and then upload them to your system.

Hosting Spring Boot Web Application using Embedded Jetty Application Server

by Han Bo Sun

In this tutorial, I am going to show the readers how to create an MVC application using Spring Boot, packaging as a self host WAR file, and execute using embedded Jetty application server.

Latest Articles

Enable Syntax Highlighting in Nano for Java Server Pages (JSP)

by ToughDev

Create custom nanorc file for JSP in nano to enhance syntax highlighting and readability, along with basic autocomplete

Spring Boot Web Application Development using JSTL Template

by Han Bo Sun

This tutorial discusses the way to setup a Spring boot application that can utilize JSTL template and taglib.

Hosting Spring Boot Web Application using Embedded Jetty Application Server

by Han Bo Sun

In this tutorial, I am going to show the readers how to create an MVC application using Spring Boot, packaging as a self host WAR file, and execute using embedded Jetty application server.

Secure Spring Boot Web Application with Spring Security

by Han Bo Sun

In this article, I will show the reader how to secure a web application based on Spring Boot and WAR archive, using the Spring Security and Tags. The application will have a login page, page access based on user roles, login failure, and access denied pages.

All Articles

JSP

retrieve value to textbox from database in jsp

2 Jan 2013 by WebMaster

Hi pankajbhardwaj,I think the problem is here : out.println(" ");

Java Back-End Web App Tutorial Part 1: Building a Minimal App in Seven Steps

20 Nov 2015 by Mircea Diaconescu, Gerd Wagner

Learn how to build a Java back-end web application with minimal effort, using Java Server Faces (JSF) as the user interface technology, the Java Persistence API (JPA) for object-to-storage mapping, and a MySQL database.

12 Feb 2013 by V.

How to dynamically build a JQPlot graph through the code behind.

Google maps on web application

19 Dec 2011 by Uday P.Singh

Yes, it is possible, Have a look at this article:Google Maps in HTML, ASP.NET, PHP, JSP etc. with ease[^]hope it helps :)

web_development

Project titles and abstracts

25 Jun 2011 by thatraja

Here you go, pick any. But my suggestion is it should be best for your future jobs so pick the right one.50 Great Project Ideas[^]Projects Ideas[^]Projectsjugaad[^]

Project titles and abstracts

25 Jun 2011 by Espen Harlinn

A square is magic if each of the rows, columns, and diagonals add up to the same total. So, for example, the square 25 4 19 10 16 22 13 28 7is magic, since every row, column, and diagonal adds up to 48. Of the nine entries, three (4, 16 and 25) are perfect squares.The problem...

Adding two numbers in javascript ....

9 Mar 2013 by Michael Haephrati

Javascript allows using 3 data types:StringNumberBooleanThe datatype of your text boxes is String, while to perform any numeric calculation, you must use a Number.So, you need to convert the contents of the text boxes to a number.parseInt(num1)and...

How to escape '<' in jsp

17 Feb 2011 by Pravin Patil, Mumbai

http://stackov...

Display image in JSP pages

13 Dec 2011 by nguyenle.it

Thank you so much for any commentI solved it by myselfThis is the solutionIn the jsp file of struts i have to have this directive to use html tag lib and in the "img" tag i should use rewrite attribute to link to the image file. And the image you should put in the Web Content pathAnd...

Google maps on web application

19 Dec 2011 by D Anil Kumar

use google maps API http://code.google.com/apis/maps/index.html

web_development

Google maps on web application

19 Dec 2011 by RaviRanjanKr

Its quite common question to ask about Google Map for asp.net application, have a look there-CP Search-[Google Map and asp.net][^] for more similar question with plenty of solutions.like Regarding Google map[^]

web_development

How to display jtable in JSP

20 Jun 2012 by Sandeep Mewara

Have a look at this: A Simple Interactive JTable Tutorial[^]

problem in Pagination

10 Jul 2012 by Prasad_Kulkarni

Refer:JSP Paging Example in Datagrid[^]Pagination in JSP[^]and lot more on google[^]

How to Capture, Edit and Upload Images Through Your Web Browser

1 Aug 2012 by Dynamsoft

In this article, I’ll show you how to capture images from your web browser, edit them, and then upload them to your system.

product-showcase

Creating autocomplete textbox

8 Oct 2012 by Om Prakash Pant

Please see the following example:http://wowjava.wordpress.com/2010/11/11/autocomplete-textbox-in-jsp/[^]

Creating autocomplete textbox

8 Oct 2012 by Prasad_Kulkarni

Refer: Autocomplete text from sql database[^]

Creating autocomplete textbox

8 Oct 2012 by AshishChaudha

Try thisA Beginners Guide - Implementing Auto Suggest Functionality using Ajax Control Toolkit[^]Thanks

JSP code is not working in jquery

6 Mar 2013 by Niral Soni

It seems like coding/syntax error. Once your JSP page gets parsed, and contents reaches to client side, it will show something like this - //$(document).ready(function(){ // $("#dir1").click(function(){ // $("#dir1").focusout(function(){ var...

usage of time picker in jsp

12 Mar 2013 by Sudhakar Shinde

Please refer to the link http://www.scriptiny.com/2012/12/how-to-use-timepicker-for-jquery/[]. I hope this will give you idea about how to use it in your JSP page. Suggest you to try to use this in a JSP page and submit code in case you are facing any problem.Cheers,Sudhakar

Struts 2 Tag in jsp

29 Apr 2013 by Prasad Khandekar

Hello,It's not very clear how you are passing this data from controller to the VIEW, and secondly whether you want to display it as a list or a table. If your are passing it in the form of a List of one or more bean instance and you want to display the data in a HTML Select list and that the...

Javascript and JSP issue

10 Jun 2013 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Issues I Can See1. [As reported by Sergey Alexandrovich Kryukov] -> that is onsubmit, not önsubmit.2. As you are returning boolean value from function, you should write a return statement in the call like below (good practice).onsubmit="return validate();"3. Missing closing curly...

How I can decrypt a request parameter in md5 in a java servlet ?

30 Jun 2013 by Sergey Alexandrovich Kryukov

Nobody is supposed to "recover a password", otherwise it would defeat one of the most important properties of the passwords. Passwords should not be recoverable, ever. If a password is lost, a brand new one should be created. I would say, the major purpose of password recovery would be...

web_development

Facebook on local host

2 Jul 2013 by Nagy Vilmos

Maybe you should ask facebook about it. Here's the support[^] page, I'd start there.

Delete multiple users using checkbox

7 Jul 2013 by Shubhashish_Mandal

int userId = Integer.parseInt(userID[i]);

how to create master form in jsp

8 Aug 2013 by ridoy

You should find these interesting..How-to-create-master-page-in-javajsp.html[^]http://www.comp.dit.ie/btierney/oracle11gdoc/appdev.111/b28765/mastdetail.htm[^]

how to typecast string into date

12 Aug 2013 by pasztorpisti

It isn't really a typecast, I would call it conversion. BTW, this question is quite old and answered several times. Use google to find simple things like this. I've used jdbc quite long ago but the following googled solutions seems to be...

How to create a remember me checkbox in form?

11 Dec 2013 by thatraja

Gishisoft wrote:I try to research in the internet some i cannot understand. Probably you need to spend more time on learning(if possible, do from start)Check this one,A Simple Remember Me functionality in JSP/Servlet[^]

How to open link in same web page

6 Feb 2014 by Dnyaneshwar@Pune

Refer following URLhttp://www.w3schools.com/tags/tag_iframe.asp[^]http://stackoverflow.com/questions/5015070/using-iframes-in-asp-net[^]http://forums.asp.net/t/1863593.aspx[^]

Why do forums use this url format?

30 Nov 2015 by Stephen Hewison

From a purely pragmatic point of view. It doesn't matter which approach you use.The problem being solved by both methods is the ability target a page and pass in parameters.Arguably using www.domain.com/post/1234/Latest is a more readable URL.If you look into web frameworks such as...

How to implement KNNE algorithm in Jsp and Servlet

28 Jan 2016 by Richard MacCutchan

Then please use Google to search for it. This is not a code-on-demand forum.

How to parse json using json.parse

10 Dec 2018 by Afzaal Ahmad Zeeshan

You are injecting an invalid starter for the JSON document yourself, JSON.parse("(" + rawData + ")"); Your JSON documents can only start with {, or [, or they can have the data that they are representing—string, integer, whatever... RTFM. You can solve this problem by removing the...

Hosting Spring Boot Web Application using Embedded Jetty Application Server

13 Feb 2019 by Han Bo Sun

In this tutorial, I am going to show the readers how to create an MVC application using Spring Boot, packaging as a self host WAR file, and execute using embedded Jetty application server.

I could not understand this error please help me

23 Apr 2020 by User 11060979

group is a reserved name so it needs to be quoted when using it as column name. Better is to choose another name for the column. See here for more: Reserved Words - MariaDB Knowledge Base[^] Note: time is basically also reserved but will be...

Enable Syntax Highlighting in Nano for Java Server Pages (JSP)

31 Oct 2023 by ToughDev

Create custom nanorc file for JSP in nano to enhance syntax highlighting and readability, along with basic autocomplete

Server to run java servlet

27 Nov 2010 by #realJSOP

Googling this phrase - "deploy java servlet" - revelaed 500,000 hits, and the very first one has the title "Introduction to Java Servlets, Developing your first Java Servlet".Seriously dude - this is the internet, any question you might come up with has almost always been asked/answered...

web_development

creating personalize folder and page

8 Jan 2011 by Espen Harlinn

Try Personalization and User Profiles in ASP.NET 2.0[^]Use URL rewriting[^]Hopefully enough to get you started...You could consider using an existing CMS. Here is a list:Open Source Content Management Systems (CMS) in C#[^] umbraco and DotNetNuke are to my knowledge well...

How to create Dynamic Datagrid in jsp

18 Feb 2011 by Paritosh Das

I am using JDK 6, Netbeans 6.1 as IDE, Postgresql 8.4 as database, JBoss application server. However, at initial stage I have not adopted any framework Struts,Spring etc. How can I make a grid using that can insert, update and delete data in the database?

How can I implement a tabbed webpage using Button, Div, Form, Table in jsp?

16 Feb 2011 by satyanarayana p.j

Hi Please refer following Link.http://www.stunicholls.com/menu/mini-tabbed-pages.html[^]

Javascript for avoiding horizontal scroll in web pages

22 Feb 2011 by Sandeep Mewara

I doubt that. You cannot adjust the screen resolution of client system - that would be a big security hole, which if allowed!What you can do is, adjust your browser according to the screen resolution using Javascript.You can always do something like this:if ((screen.width

How to fill a drtopdownlist on onchange event of other?

6 Mar 2011 by ^That's Aragon

You can use AJAX cascading drop down for this.Follow below link for more details with a good example.CascadingDropDown Example[^]Hope it helps.

How fingerprint authentication is done in java?

18 Mar 2011 by Sandeep Mewara

Here you go: http://www.dreamincode.net/forums/topic/209654-finger-print-authentication/[^]http://www.componentsource.com/features/authentication/java-components/index.html[^]

Is it possible to assign a javascript variable to a varible written in scriplet?

24 Mar 2011 by Espen Harlinn

Yes :)Based on your question, I think you have a bit of reading ahead of you. Here is a few options on reading up on jdbc and PostGreSQL - take your pick:Search Google for: jdbc tutorial postgresql[^]RegardsEspen Harlinn

capture image using webcame in JSP

19 Apr 2011 by Marc A. Brown

Does this[^] help? Please note that I haven't reviewed it myself but it was the first result in this google search[^].If this helps, don't forget to vote and mark as the answer!

How to re-sync the master MySQL DB with Slave DB changes if master goes offline?

15 May 2011 by Kim Togo

What you what, is not how master-slave works. Master can only replicate to any number of slaves. But salves cannot update master. That is the idea in "master-slave".What you are asking is called MySQL Cluster, it is a synchronous solution that enables multiple MySQL instances to share...

Getting value of Hyper-Link from JSP Page..

23 May 2011 by TorstenH.

Check out the event, the button is dispatching. You should be able to figure out the name of that button: id="ButtonID" type="button" onClick="someFancyFunction(ButtonID)" >regardsTorsten

Two buttons in a single form hitting two servlets

7 Jun 2011 by Nagy Vilmos

Try this: Using Buttons Using Buttons

HTML DropDown and Vertical Scroll Bar

24 Aug 2011 by Prerak Patel

[Edit]Check this http://www.metabuilders.com/Tools/ComboBox.aspx[^]

refresh the jsp page

5 Sep 2011 by Ashish Tyagi 40

You can use META attribute of page. Like:-Your Page TitleOptional page text here.Where 2 in content="2;url=url to your jsp page" is delay of seconds to be...

refresh the jsp page

5 Sep 2011 by Ashish Tyagi 40

Ok if you want to refresh the page only once per session then you can useYour Page Title

How to connect Repository to JSP with DATAFILE.JAVA

25 Oct 2011 by Rajeshram009

Hi,I think,it has two option...one u put the java file in form action(as )other one is sendredirect()....Thanks...

Can Html5 use Java classes?

19 Nov 2011 by Graham Breach

No - if you want to use Java classes to connect to a MySQL server you will have to run it on the web server or in a Java applet.

Link database with application

29 Nov 2011 by TorstenH.

At least try to google it[^]First hit is this: Using LogMiner to Analyze Redo Log Files[^] @ Oracle Database Utilities Documentation

Display image in JSP pages

13 Dec 2011 by NikulDarji

http://www.ros...

Google maps on web application

19 Dec 2011 by raju melveetilpurayil

Start form here, and better to ask you doubts on google map forums because they are experts or solve all issues related to google mapGoogle Maps JavaScript API V3[^]

web_development

Google maps on web application

19 Dec 2011 by uspatel

If you want to use for only some addresses you can tryGoogle map codeother-wise try above answers.

web_development

Servlet gives error in processRequest method

1 Feb 2012 by thatraja

You didn't mention the complete error message(full stacktrace), check thisClass javax.ejb.EJBException[^]Class EJBException[^]BTW you can solve your issue by posting the complete error message in Google.

java . lang. NullPointerException

16 Feb 2012 by TorstenH.

java.lang.Nu...

How to use Crystal Report with JSP?

3 Mar 2012 by thatraja

Here you goJSP Crystal Reports[^]CRYSTAL REPORTS FOR ECLIPSE 2.0 DEMOS[^]

Simple chat application in jsp

28 Mar 2012 by Richard MacCutchan

answer=false...

profilling of trainees

30 Mar 2012 by bbirajdar

Hire a developer from www.freelancer.com and he will write the program for you.Everybody please vote if my solution is correct..

is it possible to send automatic mail from java

1 May 2012 by Nelek

Please have a look:http://www.javabeat.net/examples/2007/10/09/sending-mail-from-java/[^]http://www.javacommerce.com/displaypage.jsp?name=javamail.sql&id=18274[^]http://www.javapractices.com/topic/TopicAction.do?Id=144[^]http://www.tutorialspoint.com/java/java_sending_email.htm[^]

database to store for PDF,doc,pdf, and Images

27 May 2012 by Prasad_Kulkarni

Please refer some links:Storing and Retrieving doc/pdf/xls files in SQL Server[^]SQl Server 2005 : Storing pdf,txt doc files in Tables [^]Store and Retrieve pdf/txt/doc/Images in Sql server database[^]CP Articl: SQL Server - BLOB Import and Export[^]Similar discussions:Save and...

i want code for extracting text snippets from search engine for a given search term

17 Jul 2012 by Christian Graus

I guess you need to write a text parser, the HTTP request is easy, making sense of the response ( which is HTML, not just text ) is harder.Don't put your email here. If you give the site your email, you'll get an email from replies, and you won't get spam that way. Putting your email...

Expand Microsoft SharePoint to Create the Ultimate Document Management Solution

17 Aug 2012 by Dynamsoft

In this article, we will see how to use Dynamic Web TWAIN to acquire, edit images, and upload them to Microsoft SharePoint.

How to set radio button value from database(dynamically) in jsp separate file

28 Aug 2012 by fjdiewornncalwe

Add a checked=true to the radio you want checked when you print it out.

When to use which web service and why ?

14 Oct 2012 by Patrick Wanjau

It is a matter of choice which you select either JAX-Ws or JAX-RS. The difference is that JAX-RS is light weight and handles all requests in HTTP. On the other hand, JAX-WS is transport protocol independent, and you can use HTTP, SMTP, etc. JAX-WS is best to use if your application is heavy and...

HELP TO FIX LOGIN LOGICAL ERROR

25 Nov 2012 by coolloud13

Replace "==" sign with .equals(Object).Like if(role.equals("Customer"))

Importing contacts from outlook

2 Jan 2013 by Prasad_Kulkarni

Refer: Retrieving Outlook Contact Lists using Javascript[^]Similar discussion here: Import contacts from outlook with JS[^]

how to compile c program online

1 Feb 2013 by Andreas Gieriet

Do the following:1) save the submitted text into a local file2) run the C compiler on that file3) zip the result4) post that zip file to a public folder5) provide the link to the published zip fileDetails to be elaborated by you - access rights and security issues too......

Social Networking from scratch

18 Feb 2013 by Sergey Alexandrovich Kryukov

From scratch, really? Start from learning and getting some basic experience in the technologies you have tagged.Gather some requirements for your social service.Get familiar with some most used architectural...

Adding two numbers in javascript ....

9 Mar 2013 by Abhishek Pant

try the code below: function doMath() { // Capture the entered values of two input boxes var...

Encryption of JSP file for better security from read

30 Mar 2013 by Sudhakar Shinde

Encryption of JSP is not possible because it has to be readable for container to convert it into a servlet. Please read [THIS] for some workaround.

how to do coundown timer in a jsp page

23 Apr 2013 by Sandeep Mewara

There are few Javascript based timers that you can look at. For example: How do I create a JavaScript countdown timer on my Web page?[^]

Dynamic Menu from database in jsp

27 Apr 2013 by mohaideen shalim

Hi..Can anyone pls help me to write a code for the dynamic menu generation from oracle or any database in jsp???

What is the main difference b/w pageContext and session implicit objects in jsp.

28 May 2013 by Prasad Khandekar

Hello Shruthi,PageContext is used for storing and retrieving page-related information and sharing objects within the same translation unit and same request. It is also used as a convenience class that maintains a table of all the other implicit objects. For example try { ... ...

How to delete the data stored in session?

6 Jun 2013 by Prasad Khandekar

Hello Shruthi,Change your jsp code as shown below.

Jena with Eclipse IDE Unable to compile class for JSP

19 Jun 2013 by Shubhashish_Mandal

Actually your import statement are wrong .For an example QueryFactory is class , not a package. So your import statement should be :import="com.hp.hpl.jena.query.QueryFactory"instead ofimport="com.hp.hpl.jena.query.QueryFactory.*"Hence the same reason for the rest of the class.

Displaying data on webpage

2 Jul 2013 by jsc42

The id attribute is being copied from the ID field in your resultset. My guess is that this an autonumber field and, hence, is always numeric. If I understand correctly, all that you want to do is to convert that numeric value to a text; in which case, change both instances of rs.getString("ID")...

Two buttons in same Jsp connect to two methods

5 Jul 2013 by Shubhashish_Mandal

There are so many way to handle this.Process 1=============1. Create a hidden filed in your jsp called as "ReqType" .2.Set value as per Login/Logout request.2. Read this value in servletString type request.getParameter("ReqType")if("LOGOUT".equals(type)){//do logout...

Display a message in jsp

8 Jul 2013 by Prasad Khandekar

Hello Mali,Since you are doing a sendRedirect, the browser is typically going to receives 301 response as shown below. This response instructs the browser that the requested resource has been moved to a different location and the browser should make a new request to the URL specified in the...

Display a message in jsp

8 Jul 2013 by Shubhashish_Mandal

Try EL(Expression Language) instead of jsp scriptlet. Simply put ${loginMsg} in your logout page. To learn more ...http://docs.oracle.com/javaee/1.4/tutorial/doc/JSPIntro7.html[^]

Filter all urls except one

14 Jul 2013 by Shubhashish_Mandal

1. In filter grab the requested uri HttpServletRequest.getRequestURI()2. Create a list of do-not-filter .3. compare the uri with the list.

how to use keypress event in jsp

30 Jul 2013 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

From your requirement I can make out the following steps.Decide the criteria when exactly you want to have the focus on the second TextBox.For Example - when MaxLength reaches, the focus will go to second TextBox.Use the javaScript onkeypress Event[^] for the first TextBox and call...

how image slide show ?

15 Sep 2013 by User-10031173

i have gallery page in that i diplayed single image of celebriti. when i click on this image have to show slide show of all images of respective celebriti. i have tried with the follwing link but it is not working.http://www.ppplugins.com/demo/ppgallery/index-button.html#gallery[^]i...

how image slide show ?

15 Sep 2013 by Rakesh Meel

visit here..Web-Based Image Slideshow using JavaScript[^]orhttp://www.siteforinfotech.com/2013/07/create-simple-image-slideshow-using-javascript.html#.UjbUDX_kyEU[^]

script is not running unless i refresh the page

10 Oct 2013 by User-10031173

hi i have jquery script when run the page the script working perfectly but when for second its not working unless i refresh the page.this script is for editing the comments. for first time when edit the comments then submit its update in db and display immediately. when edit the next comment...

how to view pdf file in jsp page and download the same pdf?

26 Dec 2013 by Marc Gabrie

Just embed Google Doc Viewer through an iframe and specify the PDF file you want to display. This is the code you should add:

displaying real time stock price on my site

28 Dec 2013 by CHill60

Have a look at the solutions to this asp forum post[^] in particular the response from sreejukg

displaying real time stock price on my site

28 Dec 2013 by Peter Leow

In addition to solution 1, you may want to read this article for an alternative way to getting stock info.Stock Quotes and Charts from Google Finance using C#[^]

Error "The module has not been deployed. See the server log for details"

29 Jan 2014 by Shubhashish_Mandal

did you check this : Caused by: java.lang.IllegalArgumentException: The servlets named [UploadDownloadFileServlet] and [com.uoc.elearning.web.UploadDownloadFileServlet] are both mapped to the url-pattern [/UploadDownloadFileServlet] which is not permitted

How to create a simple jsp page with a oracle database connectivity?

2 Feb 2014 by Richard MacCutchan

Plenty of information to be found by Google[^].

How to open link in same web page

6 Feb 2014 by thatraja

I saw your question tags. So you could use Frames[^]. Here an example[^] like your question

Is my code follows MVC Pattern?

14 Feb 2014 by thatraja

Check this articleModel View Controller (MVC) with JSP and JSTL[^]

Is my code follows MVC Pattern?

14 Feb 2014 by Bala Selvanayagam

I am not too sure whether your code follows MVC patternIn MVC1.Model : Model is where the data classes, looks you have done this using the class "ModalClass"2 View : This should be almost pure HTML and should not have any data access class initiations / methods and you are defeating...

What is page caching ?

10 Mar 2014 by Krunal Rohit

Read this : JCS - Java Caching System[^].And a formal definition what page cache is : http://en.wikipedia.org/wiki/Page_cache[^]-KR

Send multiple AJAX request concurrently

25 Apr 2014 by loctrice

I'll just take a guess since there wasn't much detail in your post. It sounds like one of the ajax calls (or both) is relying on values set by the other. If this is the case then what you are expecting is them to run in the order you called them. For instance you are...

javascript event propagation among different jsp

15 Jun 2014 by DamithSL

Create javascript file with validations, common functions etc.. and add reference to it http://www.javascriptkit.com/javatutors/external.shtml[^]

Sample MVC project from JSP with MSSQL

31 Jul 2014 by Richard MacCutchan

Please read Code Project Quick Answers FAQ[^] and see https://www.google.com/search?q=MVC-JSP+application+with+MSSQL+as+the+database[^].

Manipulate Object Inside a List and Print the Output

22 Sep 2014 by Fabrizio Stellato

Create a JSTL tag for manipulating and print the output of each object inside the list

text file data inserted to database

6 Oct 2014 by Nelek

Step 1) Do a little research. Google is a good start...