apache-wicket 学习札记(一) maven依赖与集成spring

apache-wicket 学习笔记(一) maven依赖与集成spring
apache-wicket 学习笔记(一) maven依赖与集成spring

一) 官方网站发布的新消息wicket6.0已经发布了，上一个版本是1.5。可见官方直接升级了主版本号。

<dependency><groupId>org.apache.wicket</groupId><artifactId>wicket-core</artifactId><version>6.0.0</version></dependency><dependency><groupId>org.apache.wicket</groupId><artifactId>wicket-extensions</artifactId><version>6.0.0</version></dependency><dependency><groupId>org.apache.wicket</groupId><artifactId>wicket-auth-roles</artifactId><version>6.0.0</version></dependency><dependency><groupId>org.apache.wicket</groupId><artifactId>wicket-spring</artifactId><version>6.0.0</version></dependency>

spring嘛，在spring3.2还没有正式发布之前还是先用3.1或者2.5，个人觉得如果不用spring-mvc的话,2.5还是挺好用的。要加的依赖jar也只有一个。

<dependency>    <groupId>org.springframework</groupId>    <artifactId>spring</artifactId>    <version>2.5.6</version></dependency>

或者

<dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>3.1.2.RELEASE</version><scope>test</scope></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context-support</artifactId><version>3.1.2.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>3.1.2.RELEASE</version></dependency><dependency><groupId>aopalliance</groupId><artifactId>aopalliance</artifactId><version>1.0</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.6.11</version></dependency>

二) 配置spring容器
在web.xml中用监听器，每个spring的web项目都要这么做。

<listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-beans.xml</param-value></context-param>

三) wicket框架的核心组件是一个servlet
web.xml 被注释掉的部分在正式部署上线的时候一定要记得不注释符号去掉。

<servlet><servlet-name>Application</servlet-name><servlet-class>org.apache.wicket.protocol.http.WicketServlet</servlet-class><init-param><param-name>applicationFactoryClassName</param-name><param-value>org.apache.wicket.spring.SpringWebApplicationFactory</param-value></init-param><init-param><param-name>applicationBean</param-name><param-value>wicketApplication</param-value></init-param><!--<init-param><param-name>configuration</param-name><param-value>DEPLOYMENT</param-value></init-param>--><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>Application</servlet-name><url-pattern>/*</url-pattern></servlet-mapping>

四) wicketApplication Bean 要加入代码。

package com.ztgame.webapp.wicket;import org.apache.wicket.Page;import org.apache.wicket.protocol.http.WebApplication;import org.apache.wicket.spring.injection.annot.SpringComponentInjector;import org.springframework.stereotype.Component;import com.ztgame.webapp.wicket.page.HelloWorldPage;@Component("wicketApplication")public class Application extends WebApplication {@Overrideprotected void init() {super.init();super.getComponentInstantiationListeners().add(new SpringComponentInjector(this));}@Overridepublic Class<? extends Page> getHomePage() {return HelloWorldPage.class;}}

五) 在Page对象中注入业务层的Bean

package com.ztgame.webapp.wicket.page;import org.apache.wicket.markup.html.WebPage;import org.apache.wicket.markup.html.link.ExternalLink;import org.apache.wicket.spring.injection.annot.SpringBean;import com.ztgame.webapp.wicket.service.SomeService;public class HelloWorldPage extends WebPage {private static final long serialVersionUID = -4345240865727174450L;@SpringBeanprivate SomeService someService;public HelloWorldPage() {ExternalLink externalLink = new ExternalLink("externalLink", "http://yingzhuo.iteye.com", someService.getString());super.addOrReplace(externalLink);}}

比较奇怪的是wicket做注入既没有使用JSR250的标注或者JSR330的标注，而是用了自己定义的一个标注。
另外，需要注意的是wicket与spring集成以后不可以通过构造方法注入，只能通过field或者property注入。

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