java - 如何让 Spring 与 Wicket 兼容？ (ContextLoaderListener 问题)

Question

据我所知，根据我找到的说明(如 this 和 this too )，我需要在 web.xml 中使用此文件才能使 Spring 工作:

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

在我的 Wicket 应用程序类中，我有:

public class MyApplication extends WebApplication {

    @Override
    protected void init() {
        super.init();    
        addComponentInstantiationListener(new SpringComponentInjector(this));
    }

    @Override
    public Class<? extends Page> getHomePage() {
        return HelloWorldPage.class;
    }
}

问题是，只要我在 web.xml 中有 ContextLoaderListener，Wicket 就不会启动。我只会收到 404 错误(或空白页)，控制台输出如下:

SEVERE: Error listenerStart
Jun 28, 2011 12:49:04 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [1,973] milliseconds.
Jun 28, 2011 12:49:04 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [] startup failed due to previous errors
Jun 28, 2011 12:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [] registered the JDBC driver [org.hsqldb.jdbc.JDBCDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Jun 28, 2011 12:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Jun 28, 2011 12:49:04 PM org.apache.catalina.startup.HostConfig deployDirectory

我正在使用这两个框架的最新版本(Wicket 1.4.17 和 Spring 3.0.5)和 Tomcat 7 来运行它们(同样的事情发生在 Tomcat 6 上)。另外，我在 WEB-INF/lib 中有以下 jars。东西少了还是太多了？

antlr-2.7.6.jar                        log4j-1.2.16.jar              spring-web-3.0.5.jar
commons-collections-3.1.jar            mysql-connector-5.1.10.jar    slf4j-api-1.6.1.jar
dom4j-1.6.1.jar                        spring-beans-3.0.5.jar        slf4j-log4j12-1.6.1.jar
guava-r09.jar                          spring-context-3.0.5.jar      wicket-1.4.17.jar
hibernate-3.6.5.jar                    spring-core-3.0.5.jar         wicket-auth-roles-1.4.17.jar
hibernate-jpa-2.0-api-1.0.0.Final.jar  spring-jdbc-3.0.5.jar         wicket-datetime-1.4.17.jar
hsqldb.jar                             spring-orm-3.0.5.jar          wicket-ioc-1.4.17.jar
javassist-3.12.0.GA.jar                spring-test-3.0.5.jar         wicket-spring-1.4.17.jar
jta-1.1.jar                            spring-transaction-3.0.5.jar  wicketstuff-annotation-1.4.17.2.jar

web.xml 的其余部分(我已经尝试使用 servlet 和过滤器设置 Wicket；没有区别):

<?xml version="1.0" encoding="UTF-8"?>
<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>My App</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <context-param>
        <param-name>configuration</param-name>
        <param-value>development</param-value>
    </context-param>

    <filter>
        <filter-name>MyApp</filter-name>
        <filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
        <init-param>
            <param-name>applicationClassName</param-name>
            <param-value>com.acme.MyApplication</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>MyApp</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

     <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

</web-app>

谷歌搜索我找到了someone with the same problem , 但没有解决方案。

有趣的是，我以前曾让 Spring 和 Wicket 很好地协同工作，而且设置几乎相同。有什么想法吗？

Answer 1

这是我项目的配置:

<?xml version="1.0" encoding="UTF-8"?>

<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">

    <!-- Spring context config location(s) -->
    <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        /WEB-INF/applicationContext.xml
    </param-value>
    </context-param>  

    <display-name>afrodite</display-name>

    <!-- used by Log4jConfigListener -->
    <context-param>
    <param-name>webAppRootKey</param-name>
    <param-value>afrodite.root</param-value>
    </context-param>     

    <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>/WEB-INF/log4j.properties</param-value>
    </context-param>   

    <filter>
    <filter-name>openSessionInView</filter-name>
    <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    </filter>

    <filter>
    <filter-name>afrodite-app</filter-name>
    <filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
    <init-param>
        <param-name>applicationClassName</param-name>
        <param-value>info.afrodite.wicket.AfroditeApplication</param-value>
    </init-param>
    <init-param>
        <param-name>configuration</param-name>
        <param-value>DEPLOYMENT</param-value>
    </init-param>
    </filter>    

    <!-- open session should be above the wicket filter -->
    <filter-mapping>
    <filter-name>openSessionInView</filter-name>
    <url-pattern>/app/*</url-pattern>
    </filter-mapping>     

    <filter-mapping>
    <filter-name>afrodite-app</filter-name>
    <url-pattern>/app/*</url-pattern>
    </filter-mapping>           

    <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>

    <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
    <servlet-name>afrodite-api</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>2</load-on-startup>
    </servlet>

    <servlet-mapping>
    <servlet-name>afrodite-api</servlet-name>
    <url-pattern>/api/*</url-pattern>
    </servlet-mapping>    

    <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    </welcome-file-list>

</web-app>

希望这会有所帮助。