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Created by Dr. Xi on March 22, 2013 12:18:39 Last update: March 22, 2013 12:18:39
This is a step-by-step guide to create a "contract-first" web service with Apache CXF. It's a lot easier than doing the same thing with Spring-WS. The project uses standard Maven directory layout. Define the data types ( src/main/resources/hello.xsd ):
<xs:schema xmlns:xs="http://www.w3.org/200...Define the service ( src/main/resources/hello.wsdl ):
<?xml version='1.1' encoding='UTF-8'?> <wsdl:de...Create pom.xml :
<project xmlns="http://maven.apache.org/POM/4....Generate jaxb bindings:
$ mvn generate-sourcesCode the web service ( src/main/java/com/example/cxfdemo/HelloPortImpl.java ):
package com.example.cxfdemo; import javax.j...Declare the CXF servlet in web.xml ( src/main/webapp/WEB-INF/web.xml ):
<?xml version="1.0" encoding="UTF-8"?> <web-app...Wire up the web service implementation ( src/main/webapp/WEB-INF/cxf-servlet.xml ):
<?xml version="1.0" encoding="UTF-8"?> <beans x...Build the WAR:
$ mvn clean packageAfter the webapp is deployed (Tomcat running on port 8080), the web service (WSDL) is available via...
Created by Dr. Xi on March 21, 2013 20:29:14 Last update: March 22, 2013 08:58:08
Spring-WS documentation says you can use a Jaxb object as parameter or return type, provided that it is annotated with javax.xml.bind.annotation.XmlRootElement , or is an instance of javax.xml.bind.JAXBElement . But that's a lot easier said than done! For example, if sayHelloResponse is defined as:
<xs:element name="sayHelloResponse" type="tns:sayH...then the JAXB generated class is not annotated with XmlRootElement , therefore, unusable for Spring-WS. You have to define the type as:
<xs:element name="sayHelloResponse"> <xs:compl...in order to generate a type annotated with XmlRootElement . But that is not always possible. Alternatively, you can use the Maven plugin maven-jaxb2-plugin with the jaxb2-basics-annotate plugin (yes, plugin inside plugin) to inject the XmlRootElement annotation into the generated JAXB class. This is the pom:
<project xmlns="http://maven.apache.org/POM/4.0.0"...and the binding file:
<?xml version="1.0" encoding="UTF-8" standalone="y......
Created by Fang on March 30, 2012 15:04:04 Last update: March 30, 2012 15:04:04
Spring MVC 3.1 can send either JSON or HTML response on the same URL, depending on the type of response requested. With this mechanism, a page can be sent when directly requested from a link, but a JSON response can be sent in response to an AJAX request. This is the controller code:
package com.example; import java.util.Map; ...In the above example, JSON response will be sent when the HTTP request contains header "Accept: application/json". HTML response will be sent then the header is "Accept: */*", or "Accept: text/html", or anything else. You can add a limitation that the HTML response does not produce "application/json". But then the question is which response will be sent when the HTTP header is "Accept: */*"? Both methods will...
Created by James on February 02, 2012 16:09:05 Last update: February 02, 2012 16:09:17
flowplayer is another way to embed Flash in a web page. The code looks like this:
<object width="6400" height="380" data="swf/flowpl...You need to download two swf files: http://releases.flowplayer.org/swf/flowplayer-3.2.1.swf http://releases.flowplayer.org/swf/flowplayer.controls-3.2.0.swf
Created by Fang on November 22, 2011 10:40:16 Last update: November 22, 2011 10:40:16
This is an example that uses tag handler, UI component and renderer together to support a custom taglib. The main purpose is to show how these components play together. The tag renders
<ui:param name="extra" value="el interpreted"/> ...as
<h3>my:foreach</h3> <ul class="css class" extra...These are the files: The tag handler ( src/main/java/com/example/ForeachTagHandler.java ):
package com.example; import java.util.Map; ...The UI component ( src/main/java/com/example/UIForeach.java ):
package com.example; import java.io.IOExcep...The renderer ( src/main/java/com/example/ForeachRenderer.java ):
package com.example; import java.io.IOExcep...Faces config ( src/main/resources/META-INF/faces-config.xml ):
<?xml version="1.0" encoding="UTF-8"?> <faces-c...Taglib config ( src/main/resources/META-INF/foreach.taglib.xml ):
<?xml version="1.0" encoding="UTF-8"?> <facelet...
Created by Fang on November 08, 2011 20:55:00 Last update: November 21, 2011 18:19:44
In the simple taglib example , I used a tag handler class to implement a taglib. This is an example to implement a taglib with a UI component. The purpose is to use a custom tag to split a string and print each part in a separate paragraph, i.e., print
<p>john</p> <p>steve</p> <p>mike</p>with custom tag <my:foreach> :
<my:foreach var="who" value="john steve mike"> ...These are the files: pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"...src/main/java/com/example/UIForeash.java :
package com.example; import java.io.IOExcep...src/main/resources/META-INF/faces-config.xml :
<?xml version="1.0" encoding="UTF-8"?> <faces-c...src/main/resources/META-INF/foreach.taglib.xml :
<?xml version="1.0" encoding="UTF-8"?> <facelet...How to use: Put the JAR file generated by the above project in the WEB-INF/lib folder of the web app. If the web app is a Maven project, just add the taglib project as a dependency:...
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 September 07, 2009 20:44:15 Last update: November 03, 2011 14:43:19
Step 1: Repackage a web app as EAR A Java EE application is a multimodule Maven project. At the very least you'll need to package a WAR and an EAR. To get started, I'll simply re-package the simple webapp as an EAR. Create a directory named javaee-app Copy the webapp from here to javaee-app . Rename struts1app to webapp . Create pom.xml under javaee-app :
<project> <modelVersion>4.0.0</modelVersion>...Create a directory named ear under javaee-app . Create pom.xml under ear :
<project> <modelVersion>4.0.0</modelVersion>...Modify pom.xml in the webapp directory so that it looks like this:
<project> <modelVersion>4.0.0</modelVersion> ...Build with " mvn package " in the javaee-app directory. You can see that ear-1.0.ear is successfully generated in javaee-app/ear/target . Maven successfully resolves dependencies between the sub-projects....
Created by Fang on October 31, 2011 21:10:10 Last update: October 31, 2011 21:13:10
In this example I'll add a parameter to a facelets template. The example contains three tabs, each tab points to a different page. The tab control is shared among all pages, therefore, it is put in the template. Starting from the simple facelet example , make these additions: Create a new template WEB-INF/templates/tabs.xhtml :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Stric...Add a page for the about tab ( about.xhtml ):
<?xml version="1.0" encoding="UTF-8"?> <ui:comp...Add a page for the news tab ( news.xhtml ):
<?xml version="1.0" encoding="UTF-8"?> <ui:comp...Add a page for the partner tab ( partner.xhtml ):
<?xml version="1.0" encoding="UTF-8"?> <ui:comp...Build and re-deploy the application. Launch the browser and load page http://localhost:8080/facelet-demo/about.jsf . This is a screenshot:
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"); %>...