struts2多个配置文件的应用

<!-- 定义Struts2的核心Filter -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
com.huawei.cmclient.common.sys.InitStruts2Filter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
==================================================================================================
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;

import org.apache.struts2.dispatcher.Dispatcher;
import org.apache.struts2.dispatcher.ng.ExecuteOperations;
import org.apache.struts2.dispatcher.ng.PrepareOperations;
import org.apache.struts2.dispatcher.ng.filter.FilterHostConfig;
import org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter;

import com.huawei.cmclient.common.log.IDebugLog;
import com.huawei.cmclient.common.log.LogFactory;


/**重载Struts2核心控制器
* @version Jul 14, 2011
* @see InitStruts2Filter
* @since
*/
public class InitStruts2Filter
    extends StrutsPrepareAndExecuteFilter
{

    /**
     * 日志对象
     */
    private static IDebugLog LOG = LogFactory.getLog(InitStruts2Filter.class);

    /**初始化
     * @param filterConfig
     * @see
     */
    public void init(FilterConfig filterConfig)
        throws ServletException
    {
        LOG.debug("Enter Func [ init(FilterConfig filterConfig) ]");
        InitStruts2Operations init = new InitStruts2Operations();
        try
        {
            FilterHostConfig config = new FilterHostConfig(filterConfig);
            init.initLogging(config);
            Dispatcher dispatcher = init.initDispatcher(config);
            init.initStaticContentLoader(config, dispatcher);

            this.prepare = new PrepareOperations(filterConfig.getServletContext(), dispatcher);
            this.execute = new ExecuteOperations(filterConfig.getServletContext(), dispatcher);
            this.excludedPatterns = init.buildExcludedPatternsList(dispatcher);

            postInit(dispatcher, filterConfig);
        }
        finally
        {
            init.cleanup();
            LOG.info("initialized struts2 integration successfully !");
        }

    }
}
=====================================================================import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.struts2.dispatcher.Dispatcher;
import org.apache.struts2.dispatcher.ng.HostConfig;
import org.apache.struts2.dispatcher.ng.InitOperations;
import com.huawei.cmclient.common.log.IDebugLog;
import com.huawei.cmclient.common.log.LogFactory;
/**
* Struts2核心控制器初始化类
* @version Jul 15, 2011
* @see InitStruts2Operations
* @since
*/
public class InitStruts2Operations
    extends InitOperations
{

    /**
     * 日志对象
     */
    private static IDebugLog LOG = LogFactory.getLog(InitStruts2Operations.class);

    /**创建核心控制器
     * @param filterConfig
     * @return
     * @see
     */
    private Dispatcher createDispatcher(HostConfig hostConfig)
    {
        LOG.debug("Enter Func [ createDispatcher(HostConfig hostConfig) ]");
        Map<String, String> params = new HashMap<String, String>();
        String name;
        String value;
        for (Iterator< ? > e = hostConfig.getInitParameterNames(); e.hasNext(); params.put(name,
            value))
        {
            name = (String) e.next();
            value = hostConfig.getInitParameter(name);
        }
        parseStrutsConfig(hostConfig, params);
        return new Dispatcher(hostConfig.getServletContext(), params);

    }

    /**初始化核心控制器
     * @param filterConfig
     * @return
     * @see
     */
    public Dispatcher initDispatcher(HostConfig hostConfig)
    {
        LOG.debug("Enter Func [ initDispatcher(HostConfig hostConfig) ]");
        Dispatcher dispatcher = createDispatcher(hostConfig);
        dispatcher.init();
        return dispatcher;
    }

    /**获取所有配置文件的路径
     * @param m
     * @see
     */
    private void parseStrutsConfig(HostConfig hostConfig, Map<String, String> m)
    {
        LOG.debug("Enter Func [ parseStrutsConfig(HostConfig hostConfig, Map<String, String> m) ]");
        String home = hostConfig.getServletContext().getRealPath("/");
        home.replace("//", "/");
        if (home.startsWith("/"))
        {
            home = home + "/";
        }
        StringBuffer strutsPath = new StringBuffer("struts-default.xml,struts-plugin.xml");
        getStrutsPath(new File(home), strutsPath);
        m.put("config", strutsPath.toString());
    }

    /**获取工程下所有的struts配置文件
     * @param file
     * @param pathBuffer
     * @see
     */
    private void getStrutsPath(File file, StringBuffer pathBuffer)
    {
        LOG.debug("Enter Func [ getStrutsPath(File file, StringBuffer pathBuffer) ]");
        if (null == file)
        {
            LOG.warn("the struts config files not exist !");
            return;
        }
        File[] files = file.listFiles();
        for (int i = 0; i < files.length; i++)
        {
            File f = files[i];
            if (f.isDirectory())
            {
                getStrutsPath(f, pathBuffer);
                continue;
            }
            String fName = files[i].getName();
            if (fName.endsWith("struts.xml"))
            {
                pathBuffer.append(",");
                pathBuffer.append(files[i].getAbsolutePath());
            }
        }
    }

}