context.Response.ContentType = "text/html";
VelocityEngine vltEngine = new VelocityEngine();
vltEngine.SetProperty(RuntimeConstants.RESOURCE_LOADER, "file");
vltEngine.SetProperty(RuntimeConstants.FILE_RESOURCE_LOADER_PATH, System.Web.Hosting.HostingEnvironment.MapPath("~/templates"));//模板文件所在的文件夹
vltEngine.Init();
//匿名类 把类的定义和对象的声明初使化放到一起
var news = new { Title = "ffff", Author = "AL", PostDate = "2013-11-8", Msg = "公布消息细节" };
VelocityContext vltContext = new VelocityContext();
vltContext.Put("people", news);//设置参数,在模板中可以通过$data来引用
Template vltTemplate = vltEngine.GetTemplate("displayNews.htm");
System.IO.StringWriter vltWriter = new System.IO.StringWriter();
vltTemplate.Merge(vltContext, vltWriter);
string html = vltWriter.GetStringBuilder().ToString();
context.Response.Write(html); //输出html代码
context.Response.ContentType = "text/html"