This document provides an introduction to the Spring MVC framework. It discusses where web development has been with traditional servlet-based approaches, and how MVC frameworks like Spring provide better structure. Spring uses inversion of control (IoC) and dependency injection to reduce tight coupling between objects. The document provides an example Spring MVC application that uses a controller to handle requests and bind them to a form backing object using Spring's tag library. It discusses configuration in the Spring XML file and how validation would work. Overall the summary introduces the key concepts of Spring MVC including IoC, dependency injection, controllers, and form handling.
Advanced SharePoint Web Part DevelopmentRob Windsor
Web Parts are the foundation of user interfaces in SharePoint. As a developer, it's relatively easy (particularly with the Visual Web Part) to build something simple and get it deployed. But what do you do when you need to add editable properties or when you need to connect two Web Parts together? This fast-paced, demo-heavy session covers the more advanced aspects of building Web Parts for SharePoint on-premises and SharePoint Online. We’ll take a look at creating custom editor parts, constructing connected Web Parts, and how to render Web Parts asynchronously. We’ll also explore how to build JavaScript-only Web Parts that will work with SharePoint Online.
Advanced SharePoint Web Part DevelopmentRob Windsor
Web Parts are the foundation of user interfaces in SharePoint. As a developer, it's relatively easy (particularly with the Visual Web Part) to build something simple and get it deployed. But what do you do when you need to add editable properties or when you need to connect two Web Parts together? This fast-paced, demo-heavy session covers the more advanced aspects of building Web Parts for SharePoint on-premises and SharePoint Online. We’ll take a look at creating custom editor parts, constructing connected Web Parts, and how to render Web Parts asynchronously. We’ll also explore how to build JavaScript-only Web Parts that will work with SharePoint Online.
Introduction to the SharePoint Client Object Model and REST APIRob Windsor
As Microsoft was releasing SharePoint 2013 it was pretty clear that they were steering people away from using the product as a portal to using it as a gateway to external systems and services. Since the Server Object Model cannot be used remotely, developers building these external systems will need to become familiar with the Client Object Model (CSOM) and/or the REST API if they want to communicate with SharePoint. This session will introduce these two APIs, give a brief overview of their history, and then show you how to get started using them through a series of demonstrations.
Discussion on the new features of the Client Object Model (Client OM) in SharePoint 2010.
Presented at SharePoint Saturday Richmond 11/18/2009
Presented at SharePoint Saturday Virginia Beach 1/13/2010
Presented at SharePoint Saturday Boston 2/27/2009
ASP.NET Web API is a framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices. ASP.NET Web API is an ideal platform for building RESTful applications on the .NET Framework.
Video :
https://youtu.be/qwLBeg1CPSo
Courtesy:
http://www.ifourtechnolab.com
The tutorial describes the following topics in detail
CREATING AN ADF APPLICATION
DEPLOYING & RUNNING ADF APPLICATION ON WEBLOGIC SERVER
ADF DATA VISUALIZATION COMPONENTS
CREATING MORE COMPLEX BUSINESS COMPONENTS
CREATING MULTIPLE PAGE WEBSITES – PAGE FLOWS
CREATING JEE5 STATELESS SESSION EJBS
CREATING JAX-WS WEB SERVICES
ADDING THE NEW SERVICES INTO THE ADF APPLICATION
DATA VALIDATION (OPTIONAL)
Components are the most basic UI building block of an Angular app. An Angular app contains a tree of Angular components.
Angular components are a subset of directives, always associated with a template. Unlike other directives, only one component can be instantiated per an element in a template.
A component must belong to an NgModule in order for it to be available to another component or application. To make it a member of an NgModule, list it in the declarations field of the NgModule metadata.
Introduction to the SharePoint Client Object Model and REST APIRob Windsor
As Microsoft was releasing SharePoint 2013 it was pretty clear that they were steering people away from using the product as a portal to using it as a gateway to external systems and services. Since the Server Object Model cannot be used remotely, developers building these external systems will need to become familiar with the Client Object Model (CSOM) and/or the REST API if they want to communicate with SharePoint. This session will introduce these two APIs, give a brief overview of their history, and then show you how to get started using them through a series of demonstrations.
Discussion on the new features of the Client Object Model (Client OM) in SharePoint 2010.
Presented at SharePoint Saturday Richmond 11/18/2009
Presented at SharePoint Saturday Virginia Beach 1/13/2010
Presented at SharePoint Saturday Boston 2/27/2009
ASP.NET Web API is a framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices. ASP.NET Web API is an ideal platform for building RESTful applications on the .NET Framework.
Video :
https://youtu.be/qwLBeg1CPSo
Courtesy:
http://www.ifourtechnolab.com
The tutorial describes the following topics in detail
CREATING AN ADF APPLICATION
DEPLOYING & RUNNING ADF APPLICATION ON WEBLOGIC SERVER
ADF DATA VISUALIZATION COMPONENTS
CREATING MORE COMPLEX BUSINESS COMPONENTS
CREATING MULTIPLE PAGE WEBSITES – PAGE FLOWS
CREATING JEE5 STATELESS SESSION EJBS
CREATING JAX-WS WEB SERVICES
ADDING THE NEW SERVICES INTO THE ADF APPLICATION
DATA VALIDATION (OPTIONAL)
Components are the most basic UI building block of an Angular app. An Angular app contains a tree of Angular components.
Angular components are a subset of directives, always associated with a template. Unlike other directives, only one component can be instantiated per an element in a template.
A component must belong to an NgModule in order for it to be available to another component or application. To make it a member of an NgModule, list it in the declarations field of the NgModule metadata.
Java Spring MVC Framework with AngularJS by Google and HTML5Tuna Tore
Course Description
#springframework, #spring, #udemy, #discount, #programming, #springmvc, spring, #udemycourse, #education
NEW udemy course related to the latest Java Spring MVC Framework 4 for developing WEB applications with popular and proven technologies such as AngularJS by Google and HTML5. (Lectures are divided in three main sections so you don't have to learn AngularJS Framework until you start the last section. The last section will teach you AngularJS by Google and the integration with Java Spring MVC Framework 4)
https://www.udemy.com/java-spring-mvc-framework-with-angularjs-by-google-and-html5
Moreover, this course is designed and created with the mindset of teaching you the latest web technologies in a short period of time with low training cost and high-quality content including real production quality code examples.
Therefore after attending this course, you will be ready to design and develop any commercial Java Spring MVC applications by learning the main principals, best practices, and most important concepts.
Furthermore, this is a fast track course and covers the most important concepts in AngularJS Framework, HTML5 and the latest Java Spring MVC Framework 4x with code examples and sample applications. You will be able to download source codes/slides/diagrams by attending this course and you can use those samples/codes in your applications as well. Therefore, it will be more than enough for you to develop Java Spring MVC applications if you attend this course.
The benefits of attending this udemy course are listed like as below;
You will earn a higher salary hence you will be able to use the latest and productive technologies and this course will also improve the way of your thinking in terms of programming by teaching you dependency injection principle used in Spring MVC and AngularJS
You will be more confident about commercial WEB programming for the following years and general programming concepts as well.
We will only use FREE Open Source Software tools during the development of components in this course.
You will learn the latest Java Spring MVC Framework with hands-on examples
You will learn the usage of AngularJS by Google for developing structured rich client side applications
You will understand the usage of latest useful basic HTML5 tags with code examples
You will gain experience of using CSS(Style Sheets) in web applications
Learn how to develop, test, run and debug Java Spring MVC applications
Learn how to integrate AngularJS with Java Spring MVC framework.
https://www.udemy.com/java-spring-mvc-framework-with-angularjs-by-google-and-html5
#springframework, #spring, #udemy, #discount, #programming, #springmvc, spring, #udemycourse, #education
A complete boot camp for beginners who want to learn Spring Boot.
In this course, you'll learn how we can create web services and cover all the topics of Spring Boot, Spring Framework, and many others.
If you've some experience in Java and want to be a Software Engineer or Java Developer using Spring, you're on right way.
Just read and practice, in the end of this course you'll have a great knowledge of Spring boot, a backend knowledge.
Course outline:
JPA, Hibernate, Spring, Spring Framework, H2 Database, PostgreSQL, MySQL.
#SpringBoot
#SpringFramwork
#MySQL
#PostgreSQL
#MySQL
#H2
#JPA/Hibernate
#Webservices
TUTORIAL-INTRODUCTION TO SPRING FOR BEGINNERS
EXPLANATION TO-Java Framework,Advantages of using SPRING,Difference between Hibernate and Spring.Spring architecture,Spring IoC Containters,Bean scope & Method Injection,Spring Inheritance.
Spring framework makes the easy development of JavaEE application.
Spring is a lightweight framework. It can be thought of as a framework of frameworks because it provides support to various frameworks such as Struts, Hibernate, Tapestry, EJB, JSF etc.
Spring framework comprises several modules such as IOC, AOP, DAO, Context, ORM, WEB MVC etc.
Spring framework makes the easy development of JavaEE application.
Spring is a lightweight framework. It can be thought of as a framework of frameworks because it provides support to various frameworks such as Struts, Hibernate, Tapestry, EJB, JSF etc.
Spring framework comprises several modules such as IOC, AOP, DAO, Context, ORM, WEB MVC etc.
This presentation will show the latest Web Components technologies and examples, and whether you should be using Web Components now. (spoiler alert: you should be!)
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
2. Outline
• Where we‟ve been
• M.V.C. Frameworks
• Why Use Spring
• IoC (Inversion of Control)
• Examples
• MVC Example
• Where do we go from here?
• Questions
3. Where we‟ve been
• Web based programming “The Servlet Way”
• JSP or HTML Form Submit to servlet Servlet
Processes data & Outputs information
• Works well for small applications but can quickly grow out of
control because HTML, scrip-lets, java script, tag-libraries,
database access, and business logic makes it difficult to
organize.
• Put simply, lack of structure can cause a “soup” of different
technologies.
• JSP‟s compile to Servlet
4. “A Better Way?”
• Separate the Data Access, Business Logic
and Presentation using a M.V.C.
Framework.
Choose a M.V.C. framework:
• WebWork, Spring, Struts, Java-Server-
Faces, Tapestry plus “many more”
5. Things change:
• Struts, by far is the most popular; same
creator of Struts (Craig McClanahan) is the
co-spec leader of Java Server Faces.
• Webwork evolved to Webwork2
• Tapestry - has been around for awhile.
• Spring – “newer” of the frameworks.
Integrates well with any other framework
or by itself.
6. Why use Spring?
• All frameworks integrate well with Spring.
• Spring offers an open yet structured framework, using
dependency-injection, a type of inversion-of-control to
integrate different technologies together.
• Consistent Configuration, open plug-in architecture
• Integrates well with different O/R Mapping frameworks
like Hibernate
• Easier to test applications with.
• Less complicated then other frameworks.
• Active user community, many new books coming out.
7. Want to integrate your existing web-app with a
Spring middle tier?
– Struts
• http://struts.sourceforge.net/struts-spring/
– Web Work
• http://wiki.opensymphony.com/space/Spring+Frame
work+Integration
– Tapestry
• http://www.springframework.org/docs/integration/tap
estry.html
8. What if I like Microsoft .NET?
Then try Spring Framework .NET
http://sourceforge.net/projects/springnet/
9. Why I chose to learn the Spring framework
• Because of IoC/Dependency Injection you can easily
change configurations.
• Addresses end-to-end requirements, not just one part.
• Spring is well organized and seems easier to learn then
struts.
• Portable across deployment environments.
• Integrates well with Hibernate
Meant to wet your appetite and note be compressive.
10. Downsides:
• Not as mature as other frameworks (but very
stable).
• Market share is small at this time, but rapidly
growing.
• dependency-injection (Inversion-of-control) is a
different way of thinking (This is actually a plus).
• Not a-lot of tool support for Spring yet. A plug-in
for Eclipse is available.
• Depends on who you ask.
11. Spring is not just a Presentation M.V.C. Framework:
Persistence support:
• Spring also supports A JDBC Framework that makes it
easier to create JDBC Apps.
• Supports O/R mapping Frameworks making it easier to use
O/R tools like Hibernate & JDO
• Spring offers Connection Pooling for any POJO.
• Supports transaction framework
• Has good support for aspect-oriented-programming
• Plus much more.
12. What is dependency-injection & why use it?
• Dependency-injection (a type of IoC) is when you
let your framework control your application.
• Spring links objects together instead of the
objects linking themselves together.
• Spring object linking is defined in XML files,
allowing easy changes for different application
configurations thus working as a plug in
architecture.
• Dependency injection is where the control of the
application is inverted to the framework. This
control is configured in the framework with an
XML file.
13. Without Dependency-Injection/IoC
creates Object B
Object A
creates
Object C
An object creating its dependencies without IoC leads to tight object
coupling.
14. With Dependency-Injection/IoC
Allows objects to be created at higher levels and passed
into object so they can use the implementation directly
Object B setB(IB)
Object A
setC(IC)
Object C
Object A contains setter methods that accept interfaces to objects B
and C. This could have also been achieved with constructors in
object A that accepts objects B and C.
15. Spring supports two types of dependency injection
“setter-based” and “constructor based” injection
• Code Example of setter based injection:
<beans>
<bean name="person" class="examples.spring.Person">
<property name="email">
<value>my@email.address</value>
</property>
</bean>
</beans>
*** beans are accessed by there “bean name”
Interpretation of the above code:
Person person = new Person();
person.setEmail(“my@email.address”);
This code creates a Person object and calls the setEmail() method,
passing in the string defined as a value.
16. Constructor based injection
<beans>
<bean name="fileDataProcessor“ class="examples.spring.DataProcessor"
singleton="true">
<constructor-arg>
<ref bean="fileDataReader"/>
</constructor-arg>
</bean>
<bean name="fileDataReader" class="examples.spring.FileDataReader"
singleton="true">
<constructor-arg>
<value>/data/file1.data</value>
</constructor-arg>
</bean>
</beans>
Interpretation of the above code:
FileDataReader fileDataReader = new FileDataReader(“/data/file1.data”);
DataProcessor fileDataProcessor = new DataProcessor(fileDataReader);
17. Spring provides a JDBC Template that manages your connections for you.
*** Simple example of connecting to a datasource. ***
ProductManagerDaoJdbc implements ProductManagerDao {
public void setDataSource(DataSource ds) {
this.ds = ds;
}
}
*** No need to change java code when changing datasource; change in
„Spring bean‟ XML file below.
<beans>
<bean name="dataSource"
class="com.mysql.jdbc.jdbc2.optional.MysqlDataSource" destroy-
method="close">
<property name="url">
<value>jdbc:mysql://localhost/test</value>
</property>
<beans>
<bean id="prodManDao" class="db.ProductManagerDaoJdbc">
<property name="dataSource">
<ref bean="dataSource"/>
</property>
</bean>
19. Spring Web Controllers
• In an MVC architecture your controllers handle
all requests.
• Spring uses a „DispatcherServlet” defined in the
web.xml file to analyze a request URL pattern
and then pass control to the correct Controller by
using a URL mapping defined in a “ Spring bean”
XML file.
20. Spring Web Container Setup
In your Web Container, the Spring “bean” XML file
exists in the same directory as your web.xml file
with a “-servlet.xml” appended to it.
webapps
/tradingapp
/WEB-INF/tradingapp-servlet.xml, web.xml)
/classes
/lib (all jar files)
The dispatcher servlet is mapped to the name
“tradingapp” so it knows to look in the “tradingapp-
servlet.xml” file to look-up a URL-to- Controller
match.
21. Example of web.xml file
<web-app>
<servlet>
<servlet-name>tradingapp</servlet-name>
<servlet-class>DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>tradingapp</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
</web-app>
*** Any URL ending with an “.htm” pattern is routed to the
DispatcherServlet, the DispatcherServlet loads the tradingapp-
servlet.xml file and routes the user to the correct controller.
22. Our Demo Logon Form at URL
http://localhost/tradingapp/logon.htm
23. The tradingapp-servlet.xml file a.k.a.
Spring beans XML file is where the
majority of your configuration is done.
For example: If working with the URL: /logon.htm
Because the URL ends with .htm the DispatcherServlet loads
the tradingapp-servlet.xml file to determine which
controller to use.
The tradingapp-servlet.xml file uses Springs
SimpleUrlHandlerMapping class to map the URL to a
controller, in this case the LogonFormController
Next…what the tradingapp-servlet.xml looks like.
24. tradingapp-servlet.xml
<bean id="urlMapping"
class="org.springframework.SimpleUrlHandlerMapping">
<property name="urlMap">
<map>
<entry key="/logon.htm">
<ref bean="logonForm"/>
</entry>
</map>
This class extends Springs SimpleFormController
</property>
Which defines a setSuccessView() method
</bean>
<bean id="logonForm" class="com.tradingapp.LogonFormController">
<property name="sessionForm"><value>true</value></property>
<property name="commandName"><value>credentials</value></property
<property name="commandClass">
<value>com.tradingapp.Credentials</value>
</property>
<property name="validator"><ref bean="logonValidator"/></property>
<property name="formView"><value>logon</value></property>
<property name="successView"><value>portfolio.htm</value></property>
</bean> If it passes “validator” then successView, passes to portfolio.htm page
25. Review of the process so far
• User goes to this URL:
http://tradingapp/logon.htm
• Since the URL ends with “.htm”, the
tradingapp-servlet.xml file is loaded to
determine what controller to use.
• The <bean name urlMapping …/> says to refer
to the <bean id="logonForm"
class="com.tradingapp.LogonFormController">
• Since the LogonFormController extends
SimpleFormController we can use the methods
defined in the SimpleFormController class to do
all kinds of form checking, e.g. validation.
26. What our LogonFormController Looks Like.
public class LogonFormController extends SimpleFormController {
public ModelAndView onSubmit(Object command) throws ServletException {
return new ModelAndView(new RedirectView(getSuccessView()));
}
}
Remember our tradingapp-servler.xml file?
<bean id="logonForm" class="com.tradingapp.LogonFormController">
<property name="sessionForm"><value>true</value></property>
<property name="commandName"><value>credentials</value></property
<property name="commandClass">
<value>com.tradingapp.Credentials</value>
</property>
<property name="validator"><ref bean="logonValidator"/></property>
<property name="formView"><value>logon</value></property>
<property name="successView"><value>portfolio.htm</value></property>
</bean>
If no validation
errors, go here
28. Where do I go if there is a validation error in my logon page?
tradingapp-servler.xml
<bean id="logonForm" class="com.tradingapp.LogonFormController">
<property name="sessionForm"><value>true</value></property>
<property name="commandName"><value>credentials</value></property
<property name="commandClass">
<value>com.tradingapp.Credentials</value>
</property>
<property name="validator"><ref bean="logonValidator"/></property>
<property name="formView"><value>logon</value></property>
<property name="successView"><value>portfolio.htm</value></property>
</bean>
<bean id="logonValidator" class="com.devx.tradingapp.web.LogonValidator"/>
*** Your LogonFormController will check the validation “first” without writing
any additional code because your LogonFormController extends Springs
SimpleFormController.
Next: The LogonValidator implements Springs Validator interface.
On error go back to formView, that is where you started.
29. Logon page with error message
Next: code for LogonValidator implements Springs Validator
30. Example code of validator
tradingapp-servler.xml
<bean id="logonForm" class="com.tradingapp.LogonFormController">
<property name="commandName"><value>credentials</value></property
<property name="commandClass">
<value>com.tradingapp.Credentials</value>
</property>
<property name="validator"><ref bean="logonValidator"/></property>
<property name="formView"><value>logon</value></property>
<property name="successView"><value>portfolio.htm</value></property>
</bean>
<bean id="logonValidator" class="com.devx.tradingapp.web.LogonValidator"/>
public class LogonValidator implements Validator {
public void validate(Object obj, Errors errors) {
Credentials credentials = (Credentials) obj; Command / form backing bean
if (credentials.getPassword().equals("guest") == false) {
errors.rejectValue("password", "error.login.invalid-pass",
null, "Incorrect Password.");
}
} Next: Command/Form Backing Bean
31. Command/Form Backing Bean is a POJO
public class Credentials {
private String username;
private String password;
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
} Next: Why its called a “command” or “form backing bean”
32. Command/Form Backing Bean is a POJO
public class Credentials {
logon.htm form private String username;
private String password;
Username:
public String getPassword() {
return password;
}
Password: public void setPassword(String
password) {
this.password = password;
The logon form is “backed” by the }
Credentials bean and given a
commandName of “credentials” public String getUsername() {
defined in out springapp-servlet.xml return username;
}
file. “credentials” will be our
“command object” we will use to public void setUsername(String
bind the form to the bean. username) {
this.username = username;
Next: another look at springapp-
}
servlet.xml file
}
33. springapp-servlet.xml file
<bean id="logonForm" class="com.tradingapp.LogonFormController">
<property name="commandName"><value>credentials</value></property
<property name="commandClass">
<value>com.tradingapp.Credentials</value>
</property>
<property name="validator"><ref bean="logonValidator"/></property>
<property name="formView"><value>logon</value></property>
<property name="successView"><value>portfolio.htm</value></property>
</bean>
We use the commandName “credentials”
with Spring‟s tag library, to bind the
Credentials bean to the logon form.
Next: Code that shows logon form binding to commandName
34. logon form binding to commandName using
Springs Tag Library
<%@ taglib prefix="spring" uri="/spring" %>
<html>
<head><title>DevX.com Stock-Trading System
Logon</title></head>
<body>
<spring:bind path="credentials.username">
<input type="text" name="username"
<spring:bind path="credentials.password">
<input type="password" name="password" />
</body>
Spring‟s taglib has bound the bean to the form
</html>
35. Where do we go from here.
Presentation based on tutorials from:
Javid Jamae
http://www.devx.com/Java/Article/21665/0/page/1
- Other Spring Presentations & Tutorials
http://ckny.eatj.com/wiki/jsp/Wiki?Spring#presentations
- Categories from AOP to Security (Acegi) check out
Springs: Forum
http://forum.springframework.org/index.php