jFinal集成Velocity的toolbox，仓促完成的，有改进的想法欢迎留言:)

package com.jfinal.render;import java.io.IOException;
import java.io.Writer;
import java.util.Properties;import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.velocity.Template;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.context.Context;
import org.apache.velocity.io.VelocityWriter;
import org.apache.velocity.runtime.RuntimeConstants;
import org.apache.velocity.tools.view.ToolboxManager;
import org.apache.velocity.tools.view.context.ChainedContext;
import org.apache.velocity.tools.view.servlet.ServletToolboxManager;
import org.apache.velocity.util.SimplePool;&＃64;SuppressWarnings("deprecation")
public class VelocityWithToolboxRender extends Render
{private static final String TOOL_BOX_CONF_FILE &＃61;"/WEB-INF/toolbox.xml";private static final String encoding &＃61; getEncoding();private static final String contentType &＃61; "text/html;charset&＃61;" &＃43; encoding;protected ToolboxManager toolboxManager &＃61; null;private static SimplePool writerPool &＃61; new SimplePool(40);public VelocityWithToolboxRender(String view){this.view &＃61; view;initToolbox(RenderFactory.getServletContext());}static {String webPath &＃61; RenderFactory.getServletContext().getRealPath("/"); Properties properties &＃61; new Properties();properties.setProperty(RuntimeConstants.FILE_RESOURCE_LOADER_PATH, webPath);properties.setProperty(RuntimeConstants.ENCODING_DEFAULT, encoding); properties.setProperty(RuntimeConstants.INPUT_ENCODING, encoding); properties.setProperty(RuntimeConstants.OUTPUT_ENCODING, encoding); Velocity.init(properties); }protected void initToolbox(ServletContext servletContext){toolboxManager &＃61; ServletToolboxManager.getInstance(servletContext, TOOL_BOX_CONF_FILE);}&＃64;SuppressWarnings("unchecked")protected Context createContext(HttpServletRequest req, HttpServletResponse resp){ChainedContext ctx &＃61; new ChainedContext(new VelocityEngine(), req, resp, RenderFactory.getServletContext());if (toolboxManager !&＃61; null){ctx.setToolbox(toolboxManager.getToolbox(ctx));}return ctx;}&＃64;Overridepublic void render(){Context context &＃61; createContext(request, response);VelocityWriter vw &＃61; null;Template template &＃61; Velocity.getTemplate(view);response.setContentType(contentType);try{Writer writer &＃61; response.getWriter();vw &＃61; (VelocityWriter) writerPool.get();if (vw &＃61;&＃61; null){vw &＃61; new VelocityWriter(writer, 4 * 1024, true);}else{vw.recycle(writer);}template.merge(context, vw);}catch (IOException e){}finally{if (vw !&＃61; null){try{vw.flush();vw.recycle(null);writerPool.put(vw);}catch (Exception e){Velocity.debug("VelocityViewServlet: " &＃43; "Trouble releasing VelocityWriter: " &＃43; e.getMessage());}}}}}