Spring mvc adding HIbernate form validation support

To enable Hibernate form validation support to your spring-mvc project we need some jars, Add the below dependencies to your existing maven pom and update your maven project. run the application by downloading the source code provided and check the control flow and how every thing is validated. Updated this in Pom.xml home.jsp OffersController.java createoffer.jsp Offer.java output: If any input is wrong according to our validation rules given to Offer.java the below errors will get. Download The complete source code is here offers – with hibernate validation support If you found an error, highlight it and press Shift + Enter or

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Creating a UI form and process with spring mvc controller

This is a basic tutorial of getting form values to spring controller and printing them in console. we have a page called createoffer.jsp which it will take form values. createoffer.jsp OffersController.java output: Offer [id=0, name=krishna, email=pbkrishna.java, text=hello, any doughts on spring clear here. Its Free!] Download the complete source code is here http://sourceforopensource.com/wp-content/uploads/2016/06/offers.zip If you found an error, highlight it and press Shift + Enter or click here to inform us.

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Spring mvc Creating a ServiceLayer

In this post we are going to see how to add service layer to our spring application. And we gonna use that to get data from our database via our spring stuff rather than simply via JSTL connecting to our dataSource. Now we are gonna give a structure to our project by adding service layer. I will explain little bit about whats happening with the code below. There is a database named sfos, in which it has a table named offers, the table have some data. Now our task is to pull the data from the database using spring mvc.

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Spring Loading Bean Contexts with ContextLoaderListener

Up to now we have seen, Connecting DAO to our spring mvc application. But in order get requests to OffersDAO.java class we need to give access of this class to the browser. By using ContextLoaderListener. We configured our OffersDao.java to dao-context.xml and then we have to configure dao-context.xml to web.xml. dao-context.xml web.xml we just added the configuration here. If you found an error, highlight it and press Shift + Enter or click here to inform us.

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Spring mvc Adding DAO Code

Now we gonna see how to add DAO code to our existing spring mvc application. web.xml OffersController.java offers-servlet.xml home.jsp Upto now we have seen the working of spring mvc application.But, what if we have a DAO(data access object) code to be added to our web application. Which the DAO will do some CRUD operations. Lets have a look of adding the DAO code to Our spring mvc application. we have the Offer pojo. Offer.java we have the OffersDAO, in this class we have configured the DataSource and JdbcTemplate. To know how to configure Datasource and JdbcTemplate http://sourceforopensource.com/spring-querying-using-jdbc-template/. OffersDAO.java dao-context.xml Conclusion: In

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Spring Setting Up a JNDI Datasource

Now we are going to configure our project on a server to use the pooled datasource connection that provided by the server. In previous posts http://sourceforopensource.com/spring-querying-using-jdbc-template/ we used apache dbcp database connection pooling. To create a pooled set of connections we could used to connect to our database. When we run a java web app the java application server for example Tomcat will implement some kind of connection pooling for you and how you configure it and how you configure your application to connect to it depends on how you deploy your application and depends on what server you are using what

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Spring mvc UsingModels

Now we are going to send data to views from controller using models, The model is not available in the session it exists in the request scope. If we use session object the data is available in session object. If we use ModelandView the data is available in request object. web.xml OffersController.java offers-servlet.xml home.jsp output: Insert title hereHi there! Request: Tiffany If you found an error, highlight it and press Shift + Enter or click here to inform us.

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Spring mvc introduction

The way spring mvc works is it routes all requests to the dispatcher servlet. So, someone goes to the browser and tries to go our web application spring will send the request first to this dispatcher servlet and the dispatcher servlet will go and look for the controller that will tell basically what to do with that request  what view to display using what data. We gonna go through all those bit by bit. Lets create a offers web application using spring mvc. pom.xml web.xml When the request is routed to OffersController where the Request is mapped to “/”  by DispatcherServlet

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