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Created by Fang on August 28, 2013 20:37:17    Last update: August 28, 2013 20:37:17
The default extension for JSF facelet files is .xhtml, which looks so out-of-date these days. I wanted to change the extension from .xhtml to .html, to make it look more modern, even though I still use JSF xhtml in reality. This didn't work ( web.xml ): <servlet-mapping> <servlet-name>Faces Ser... Using the servlet-mapping config without the context-param works, given that the actual file extensions are still .xhtml . But the caveat is, if you request the .xhtml file directly, it will be sent to the browser unprocessed. This worked: <servlet-mapping> <servlet-name>Faces Ser... I'm using myfaces 2.1.11.
Created by Dr. Xi on February 01, 2012 12:55:28    Last update: February 01, 2012 12:55:28
You can define environment variables in the Tomcat context.xml file like this: <?xml version="1.0" encoding="UTF-8"?> <Context... which is equivalent to the following in web.xml : <env-entry> <env-entry-name>varName</env-entr... In Java code, the variable can be looked up like this: // import javax.naming.Context; // import javax...
Created by Fang on January 31, 2012 13:57:56    Last update: January 31, 2012 15:04:29
These are the minimum steps to configure Spring MVC in web.xml : Bootstrap Spring MVC by registering ContextLoaderListener : <listener> <listener-class> org.springfra... Register the DispatcherServlet : <servlet> <servlet-name>spring</servlet-name> ... Add servlet-mapping : <servlet-mapping> <servlet-name>spring</servle... Configure DispatcherServlet with WEB-INF/spring-servlet.xml , which configures WebApplicationContext specific to this servlet. <?xml version="1.0" encoding="UTF-8"?> <beans x... Optionally, use context-param in web.xml to configure the global WebApplicationContext : <!-- XmlWebApplicationContext is the default, so t... If you omit this section, you have to create file WEB-INF/applicationContext.xml , even if it's empty. This is the full web.xml : <?xml version="1.0" encoding="UTF-8"?> <web-app...
Created by zhidao on January 25, 2012 16:07:29    Last update: January 25, 2012 16:07:29
A JSON response is auto-magically returned when you add the @ResponseBody annotation to the return value of a @RequestMapping annotated method: import org.springframework.stereotype.Controller; ... For magic to happen, you must: Add annotation-driven to the org.springframework.web.servlet.DispatcherServlet config xml: <?xml version="1.0" encoding="UTF-8"?> <beans x... Put Jackson jar files on CLASSPATH (i.e., under WEB-INF/lib ), which includes jackson-core-asl-1.6.4.jar and jackson-mapper-asl-1.6.4.jar .
Created by Fang on December 06, 2011 19:03:25    Last update: December 07, 2011 08:54:11
Our custom tag, as implemented in the previous note , is broken when a template is used. Create a template file ( home-template.xhtml ): <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Stric... and a test page that uses it ( home.xhtml ): <?xml version="1.0" encoding="UTF-8"?> <ui:comp... Then request the page with URL: http://localhost:8080/facelet-demo/home.jsf?name=Jack . You'll find that our hello tag works inside ui:repeat but fails to get the value defined by ui:param ! What's the problem? Our hello tag implementation evaluated the EL with the wrong EL context! This is the corrected implementation: package com.example; import java.io.IOExcep...
Created by Fang on November 10, 2011 13:19:13    Last update: December 01, 2011 19:10:43
You can add custom implicit variables to JSF pages by using a custom EL resolver, in two simple steps: Write an ELResolver class to resolve the variable Add the ELResolver to faces-config.xml Starting from the Maven Hello World example: Add faces API and EL dependencies to pom.xml : <dependencies> <dependency> <groupId>o... Add a simple greeter class ( src/main/java/com/example/Greeter.java ): package com.example; public class Greeter {... Add our custom EL resolver ( src/main/java/com/example/ELResolver.java ): package com.example; import java.util.Itera... Add the custom EL resolver to src/main/resources/META-INF/faces-config.xml <?xml version="1.0" encoding="UTF-8"?> <faces-c... Build JAR with mvn package Drop the JAR into WEB-INF/lib of a webapp and test the new EL with: <h:outputText value="#{Greeter.sayHi('Mike')}"/> Fixed: the setValue method used to throw an exception, which is wrong. @Override public void setValue(ELContext ctx, O......
Created by Fang on November 10, 2011 09:26:12    Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines! <?xml version="1.0" encoding="UTF-8"?> <xsd:sch...
Created by Fang on October 28, 2011 13:49:40    Last update: October 30, 2011 19:23:25
This is a simple example to demonstrate the templating power of JSF facelets. If you've used struts tiles before, you'll recognize the simplicity of templating with facelets. I've stripped out everything else except the pages themselves, just to put our focus on facelets. This is a Maven based project, and you need Tomcat (or any servlet container) to run the resulting webapp. To begin with this is the list of files: ./pom.xml ./src/main/webapp/home.xhtml ./src... I left faces-config.xml in there for completeness sake, it may not be needed. The Maven POM ( pom.xml ): <?xml version="1.0" encoding="UTF-8"?> <project... Web app configuration ( WEB-INF/web.xml ): <?xml version="1.0" encoding="UTF-8"?> <web-app... Empty WEB-INF/faces-config.xml : <?xml version="1.0" encoding="UTF-8"?> <!-- Thi... index.jsp is simply a redirect to home.jsf : <% response.sendRedirect("home.jsf"); %>...
Created by freyo on April 01, 2011 14:29:25    Last update: June 29, 2011 13:58:27
Start the emulator ( create an AVD if none exists) $ tools/emulator -avd Simple8 Create new project $ tools/android create project \ > --package co... where " --target 2 " identifies the target platform as displayed by " tools/android list targets ", which is stored in the properties file default.properties in the project root folder. cd HelloWorld and install debug package onto the running emulator: $ ant install Buildfile: build.xml [set... Launch the Hello World application on the emulator. You'll see something like this: Edit res/values/string.xml , change the contents to: <?xml version="1.0" encoding="utf-8"?> <resourc... Edit res/layout/main.xml , change the contents to: <?xml version="1.0" encoding="utf-8"?> <LinearL... The contents of the text area now refer to a string defined in the resource file strings.xml , instead...
Created by Dr. Xi on April 26, 2011 20:12:01    Last update: April 28, 2011 15:28:12
An XML schema is a definition of XML files, in XML. It plays the same role as old-time DTDs. Overall, an XML schema file looks like this: <schema attributeFormDefault = (qualified | u... The attribute meanings: targetNamespace : The name space targeted by the current schema definition. It can be any URI. id and version : For user convenience, the W3C spec defines no semantics for them. xml:lang : Natural language identifier defined by RFC 3306 . attributeFormDefault and elementFormDefault : Set default values for the form attribute for attribute and element declarations. blockDefault and finalDefault : Set default values for the block and final attributes for attribute and element declarations. The W3C defined some built-in datatypes . Examples of primitive datatypes are: string ,...
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