目前在做JBoss下布署String2.5 & Struts2集成的工程，在工程中用Spring2.5 的component scan, Struts2 的convention 和 rest plugins。在JBoss下部署都有问题： Spring 2.5 component scan所有annotation标注的component都无法找到。原因是JBoss用了VFS，所以在Spring中找不到。 解 决方法：使用jboss的 spring-int-vfs 中提供的 org.jboss.spring.vfs.context.VFSClassPathXmlApplicationContext。这个包可以在 http://sourceforge.net/projects/jboss/files/JBoss-Spring Integration/ 下载到，在页面中部，可以找到JBoss-Spring Integration。下面是我的一段代码： ApplicationContext appContext = null; switch(serverType) { case tomcat: appContext = new ClassPathXmlApplicationContext(configFiles); break; case jboss: appContext = new VFSClassPathXmlApplicationContext(configFiles); break; } Struts2 convention, 原因也是JBoss用了VFS，于是URL的protocol都变成了vfsfile, vfszip等等。查看xword的源码，在类com.opensymphony.xwork2.util.finder.ClassFinder的 122行左右，里面是写死的，"jar".equals(location.getProtocol(), "file".equals(location.getProtocol()。 解决方法：由于不能影响到非jboss server，如tomcat，所以不好改写ClassFinder。采用改写struts2 convention插件的方案，替换org.apache.struts2.convention.ActionConfigBuilder如下： File: src/plugins/convention/src/main/resources/struts-plugin.xml <bean type="org.apache.struts2.convention.ActionConfigBuilder" class="com.playphone.struts.convention.MyActionConfigBuilder"/> MyActionConfigBuilder类的内容如下，这里只是简单的解析WEB-INF/classes下的类，因为我没用到jar包需要被认为action的情况，所以简化。 package com.playphone.struts.convention; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.struts2.convention.ActionNameBuilder; import org.apache.struts2.convention.InterceptorMapBuilder; import org.apache.struts2.convention.PackageBasedActionConfigBuilder; import org.apache.struts2.convention.ResultMapBuilder; import org.apache.struts2.convention.StringTools; import com.opensymphony.xwork2.ObjectFactory; import com.opensymphony.xwork2.config.Configuration; import com.opensymphony.xwork2.inject.Inject; import com.opensymphony.xwork2.util.finder.ClassFinder; import com.opensymphony.xwork2.util.finder.Test; import com.playphone.spring.EnvVariable; import com.playphone.spring.ServerType; /** * Solve the problem that could not found action under JBoss. * * @author <a href="mailto:sunyi4j@gmail.com">Roy</a> on Jul 6, 2009 */ public class MyActionConfigBuilder extends PackageBasedActionConfigBuilder { private static Log log = LogFactory.getLog(MyActionConfigBuilder.class); private static final String BASE_FILE = "appContext.xml"; private String[] actionPackages; private String[] packageLocators; /** * Constructs actions based on a list of packages. * * @param configuration The XWork configuration that the new package configs and action configs * are added to. * @param actionNameBuilder The action name builder used to convert action class names to action * names. * @param resultMapBuilder The result map builder used to create ResultConfig mappings for each * action. * @param interceptorMapBuilder The interceptor map builder used to create InterceptorConfig mappings for each * action. * @param objectFactory The ObjectFactory used to create the actions and such. * @param redirectToSlash A boolean parameter that controls whether or not this will create an * action for indexes. If this is set to true, index actions are not created because * the unknown handler will redirect from /foo to /foo/. The only action that is created * is to the empty action in the namespace (e.g. the namespace /foo and the action ""). * @param defaultParentPackage The default parent package for all the configuration. */ @Inject public MyActionConfigBuilder( Configuration configuration, ActionNameBuilder actionNameBuilder, ResultMapBuilder resultMapBuilder, InterceptorMapBuilder interceptorMapBuilder, ObjectFactory objectFactory, @Inject("struts.convention.redirect.to.slash") String redirectToSlash, @Inject("struts.convention.default.parent.package") String defaultParentPackage) { super( configuration, actionNameBuilder, resultMapBuilder, interceptorMapBuilder, objectFactory, redirectToSlash, defaultParentPackage); } /** * @param actionPackages (Optional) An optional list of action packages that this should create * configuration for. */ @Inject(value = "struts.convention.action.packages", required = false) public void setActionPackages(String actionPackages) { super.setActionPackages(actionPackages); if (!StringTools.isTrimmedEmpty(actionPackages)) { this.actionPackages = actionPackages.split("//s*[,]//s*"); } } /** * @param packageLocators (Optional) A list of names used to find action packages. */ @Inject(value = "struts.convention.package.locators", required = false) public void setPackageLocators(String packageLocators) { super.setPackageLocators(packageLocators); this.packageLocators = packageLocators.split("//s*[,]//s*"); } @Override @SuppressWarnings("unchecked") protected Set<Class> findActions() { if(EnvVariable.getServerType() == ServerType.tomcat) { return super.findActions(); } else { Set<Class> classes = new HashSet<Class>(); try { ClassFinder finder = new ClassFinder(getClassLoaderForFinder(), buildUrls(), true); // named packages if (actionPackages != null) { for (String packageName : actionPackages) { Test<ClassFinder.ClassInfo> test = getPackageFinderTest(packageName); classes.addAll(finder.findClasses(test)); } } // package locators if (packageLocators != null) { for (String packageLocator : packageLocators) { Test<ClassFinder.ClassInfo> test = getPackageLocatorTest(packageLocator); classes.addAll(finder.findClasses(test)); } } } catch (Exception ex) { if (log.isErrorEnabled()) { log.error("Unable to scan named packages", ex); } } return classes; } } private List<URL> buildUrls() throws MalformedURLException { List<URL> urls = new ArrayList<URL>(); URL classesUrl = getClassLoader().getResource(BASE_FILE); if(classesUrl == null) { throw new IllegalStateException("File appContext.xml was not found. The folder WEB-INF/classes discovery base on file classes/appContext.xml."); } String baseFilePath = classesUrl.getFile(); URL url = new URL("file", "", baseFilePath.substring(0, baseFilePath.indexOf(BASE_FILE))); if (log.isInfoEnabled()) { log.info("Struts2 ActionConfigBuilder, classes directory: " + url.getFile()); } urls.add(url); return urls; } private ClassLoader getClassLoader() { return Thread.currentThread().getContextClassLoader(); } } 为了调试方便，可以打开org.apache.struts2.convention log level为debug，然后你就可以清晰地看到哪些action被认出来了。
