Wicket + Spring integration
Step 1. Add dependencies
For Spring
and wicket integration we need to add wicket-spring , spring-core , spring-context, and spring-web dependency
first like as follows.
<dependency>
<groupId>org.apache.wicket</groupId>
<artifactId>wicket-spring</artifactId>
<version>6.15.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
Step 2. Add Spring Context listener in
the web.xml
<?xml version="1.0"
encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<display-name>Wicket Web Application</display-name>
<filter>
<filter-name>wicket.wicketTest</filter-name>
<filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
<init-param>
<param-name>applicationClassName</param-name>
<param-value>com.mkyong.MyApplication</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>wicket.wicketTest</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
Step 3. Make a new
spring configuration file applicationContext.xml
and initialize the bean properties like we do in spring as follows:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean class="UserModel"
id="userModel">
<property name="name"
value="Rahul"></property>
<property name="gender"
value="Male"></property>
</bean>
</beans>
Step 4. After
that we need to add component instantiation listner inside the init method and
pass the Spring component injector in that.
public class MyApplication
extends WebApplication {
@Override
public
Class<? extends Page> getHomePage()
{
return
WelcomePage.class; // return default page
}
@Override
public
void init() {
super.init();
addComponentInstantiationListener(
new SpringComponentInjector(this));
}
}
Step 5. After that
you can use @SpringBean anootation
for using any bean like SpringBean.
public class WelcomePage extends WebPage {
@SpringBean(name="userModel")
UserModel
userModel;
public
WelcomePage() {
add(new
Label("namelbl",
new PropertyModel<String>(userModel,
"name")));
add(new
Label("gendrerlbl",
new PropertyModel<String>(userModel,
"gender")));
}
}
Step 6. Use those Labels in the html file
<!DOCTYPE html>
<html xmlns="http://wicket.apache.org">
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<span wicket:id="namelbl"></span>
<span wicket:id="gendrerlbl"></span>
</body>
</html>
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