Spring MVC

Spring MVC Dror Bereznitsky Senior Consultant and Architect, AlphaCSP It’s Time

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction:: Key Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction:: More Key Features ,[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction:: Full Stack Framework? ,[object Object],[object Object],[object Object],[object Object]

Introduction:: Spring 2.5 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Background:: Dispatcher Servlet ,[object Object],[object Object],[object Object],[object Object],[object Object]

Background:: Request Handlers ,[object Object],[object Object],[object Object]

Background:: ModelAndView ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Features Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Features:: Configuration ,[object Object],[object Object],[object Object],[object Object]

Deploy a DispatcherServlet ,[object Object],web.xml <servlet> <servlet-name> spring-mvc-demo </servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name> contextConfigLocation </param-name> <param-value> /WEB-INF/spring-mvc-demo-servlet.xml </param-value> </init-param> </servlet> Dispatcher servlet configuration

Annotated Controllers ,[object Object],@Controller public class PhoneBookController { @RequestMapping ( value = "/phoneBook" , method = RequestMethod. GET ) protected ModelAndView setupForm() throws Exception { ModelAndView mv = new ModelAndView(); … return mv; } PhoneBookController.java

Dispatcher Servlet Configuration ,[object Object],[object Object],[object Object],[object Object],<bean class= "org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" /> <bean class= "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <context:component-scan base-package= "com.alphacsp.webFrameworksPlayoff " />

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Features:: View Technology

Configure the view technology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],<bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver" > <property name = "viewClass" value = "org.springframework.web.servlet.view. JstlView “ /> <property name = "prefix" value = "/WEB-INF/views" /> <property name = "suffix" value = " . jsp" /> </bean>

Features:: Page Flow mv.setView( new RedirectView( "../phoneBook“ , true ));

Features:: Page Flow – Step 1 ,[object Object],[object Object],[object Object],[object Object],@RequestMapping ( value = "/phoneBook" , method = RequestMethod. GET ) protected ModelAndView setupForm() throws Exception { ModelAndView mv = new ModelAndView(); mv.addObject( "contacts" , Collections.<Contact>emptyList()); mv.addObject( "contact" , new Contact()); … } PhoneBookController.java

Page Flow – Step 1 Contd. DispatcherServlet PhoneBookController Handle GET /demo/phoneBook 1 InternalResource ViewResolver 2 phoneBook /WEB-INF/views/phoneBook.jsp phoneBook

Page Flow – Step 2 ,[object Object],[object Object],[object Object],PhoneBookController.java ,[object Object],[object Object],[object Object],[object Object],[object Object],@RequestMapping ( value = "/phoneBook" , method = RequestMethod. GET ) protected ModelAndView setupForm() throws Exception { return " phoneBook " ; }

Page Flow – Step 2 Contd. DispatcherServlet PhoneBookController Handle GET /demo/phoneBook 1 InternalResource ViewResolver 2 phoneBook /WEB-INF/views/phoneBook.jsp phoneBook

Features:: Sorting & Pagination Search results pagination Sorting by column

Features:: Table Sorting ,[object Object],[object Object],[object Object],[object Object],<%@ taglib uri = " http://displaytag.sf.net " prefix = " display " %> <display:table name = "contacts" class = "grid" id = "contacts" sort = "list" pagesize = "5" requestURI = "/demo/phoneBook/list" > <display:column property =" fullName" title = "Name" class = "grid" headerClass = "grid" sortable = "true" /> … </display:table> phoneBook.jsp

Features:: Search Results Pagination ,[object Object],[object Object],[object Object],[object Object]

Features:: Form Binding ,[object Object],[object Object],[object Object],<td class = "searchLabel" ><b><label for = "email" > Email </label></b></td> <td class = "search" > <form:input id = "email“ path = "email" tabindex = "2" /> </td> @RequestMapping ( value = "/phoneBook/list" ) protected ModelAndView onSubmit( @ModelAttribute ( "contact" ) Contact contact, BindingResult result)

Features:: Validations ,[object Object],[object Object],[object Object],[object Object]

Bean Validation Configuration ,[object Object],[object Object],<bean id = "configurationLoader" class = "DefaultXmlBeanValidationConfigurationLoader" > <property name = "resource" value = "WEB-INF/validation.xml" /> </bean> <bean id = "beanValidator" class = "org.springmodules.validation.bean.BeanValidator" > <property name = "configurationLoader" ref = "configurationLoader" /> </bean> 1 2

Bean Validation Configuration ,[object Object],[object Object],Validation.xml <validation> <class name = "com.alphacsp.webFrameworksPlayoff . Contact " > <property name = "email" > <email message = "Please enter a valid email address" apply-if = "email IS NOT BLANK" /> </property> </class> </validation> Domain Model

Server Side Validations ,[object Object],[object Object],PhoneBookController.java @Autowired Validator validator; @RequestMapping ( value = "/phoneBook/list" ) protected ModelAndView onSubmit( @ModelAttribute ( "contact" ) Contact contact, BindingResult result) throws Exception { … validator.validate(contact, result); …

Client Side Validation ,[object Object],[object Object],<bean id = "clientSideValidator" class = "org.springmodules.validation.valang.ValangValidator" > <property name = "valang" > <value> <![CDATA[ { firstName : ? IS NOT BLANK OR department IS NOT BLANK OR email IS NOT BLANK : 'At least one field is required'} ]]> </value> </property> </bean>

Client Side Validation Contd. ,[object Object],[object Object],<script type = "text/javascript" id = "contactValangValidator" > new ValangValidator( 'contact' , true,new Array( new ValangValidator.Rule(' firstName' , 'not implemented' , 'At least one field is required' , function () { return ((! this.isBlank((this.getPropertyValue( 'firstName' )), ( null ))) || (! this.isBlank((this.getPropertyValue( 'department' )), ( null )))) || (! this.isBlank((this.getPropertyValue( 'email' )), ( null )))}))) </script> phoneBook.jsp <%@ taglib uri = "http://www.springmodules.org/tags/valang" prefix = "valang" %> <script type = "text/javascript" src = "/scripts/valang_codebase.js" ></script> <form:form method = "POST" action = "/demo/phoneBook/list" id = "contact" name = "contact" commandName = "contact" > <valang:validate commandName = "contact" />

Features:: AJAX ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

AJAX:: Configuration ,[object Object],<dwr> <allow> <create creator = "spring" javascript = "DepartmentServiceFacade" > <param name = "beanName" value = "departmentServiceFacade" /> </create> </allow> </dwr> <bean id ="departmentServiceFacade" class = "com.alphacsp.webFrameworksPlayoff.service.impl. MockRemoteDepartmentServiceImpl“ /> ,[object Object],DWR.xml

AJAX:: Autocomplete Component <script type = "text/javascript" src = "/scripts/prototype/prototype.js" ></script> <script type = "text/javascript" src = "/scripts/script.aculo.us/controls.js" ></script> <script type = "text/javascript" src = "/scripts/autocomplete.js" ></script> <td class="search"> <form:input id = "department" path = "department" tabindex = "3" cssClass = "searchField" /> <div id = "departmentList" class = "auto_complete" ></div> <script type = "text/javascript" > new Autocompleter.DWR( 'department' , 'departmentList' , updateList, {valueSelector: nameValueSelector, partialChars: 0 }); </script> </td> phoneBook.jsp

Features:: Error Handling ,[object Object],[object Object],[object Object],[object Object]

Features:: I18n ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Features:: Documentation ,[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary:: Pros ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary:: Cons ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary:: Roadmap ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary:: References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Spring MVC

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