struts2+spring2+hibernate3+velocity+sitemesh集成框架代码

package com.myweb.demo.velocity; import java.util.Iterator; import java.util.Map; import javax.servlet.ServletContext; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.struts2.ServletActionContext; import org.apache.struts2.util.VelocityStrutsUtil; import org.apache.struts2.views.util.ContextUtil; import org.apache.struts2.views.velocity.StrutsVelocityContext; import org.apache.struts2.views.velocity.VelocityManager; import org.apache.velocity.VelocityContext; import org.apache.velocity.context.Context; import org.apache.velocity.tools.view.context.ChainedContext; import com.opensymphony.xwork2.util.ValueStack; /** * 兼容性问题 * * @author liudong * @url http://www.dlog.cn/javayou */ public class VelocityLayoutManager extends VelocityManager { private static final Log log = LogFactory .getLog(VelocityLayoutManager.class); @Override @SuppressWarnings("unchecked") public Context createContext(ValueStack stack, HttpServletRequest req, HttpServletResponse res) { VelocityContext[] chainedContexts = prepareChainedContexts(req, res, stack.getContext()); StrutsVelocityContext context = new StrutsVelocityContext( chainedContexts, stack); Map standardMap = ContextUtil.getStandardContext(stack, req, res); for (Iterator iterator = standardMap.entrySet().iterator(); iterator .hasNext();) { Map.Entry entry = (Map.Entry) iterator.next(); context.put((String) entry.getKey(), entry.getValue()); } context.put(STRUTS, new VelocityStrutsUtil(super.getVelocityEngine(), context, stack, req, res)); ServletContext ctx = null; try { ctx = ServletActionContext.getServletContext(); } catch (NullPointerException npe) { // in case this was used outside the lifecycle of struts servlet log.debug("internal toolbox context ignored"); } if (toolboxManager != null && ctx != null) { ChainedContext chained = new ChainedContext(context, super .getVelocityEngine(), req, res, ctx); chained.setToolbox(toolboxManager.getToolbox(chained)); return chained; } else { return context; } } }