我正在尝试用Velocity Template Engine做一个问候世界。这是我的代码:
package biz.tugay.app;
/* User: koray@tugay.biz Date: 22/06/15 Time: 10:36 */
import org.apache.velocity.Template;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.context.Context;
import org.apache.velocity.tools.view.VelocityViewServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HelloTest extends VelocityViewServlet {
@Override
protected Template handleRequest
(HttpServletRequest request, HttpServletResponse response, Context ctx) {
Template template = null;
try {
ctx.put("name", "Velocity Test");
template = Velocity.getTemplate("hello.vm");
} catch( Exception e ) {
System.err.println("Exception caught: " + e.getMessage());
}
return template;
}
}
我会得到:
SEVERE: ResourceManager : unable to find resource 'hello.vm' in any resource loader.
Exception caught: Unable to find resource 'hello.vm'
我在WEB-INF中有一个 velocity.properties 文件:
resource.loader = class
class.resource.loader.class = org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
和 hello.vm ,如果在 WEB-INF / classes 文件夹下找到,则显示如下:
hello $name
最后是web.xml:
<web-app>
<servlet>
<servlet-name>HelloTest</servlet-name>
<servlet-class>biz.tugay.app.HelloTest</servlet-class>
<init-param>
<param-name>properties</param-name>
<param-value>/WEB-INF/velocity.properties</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>HelloTest</servlet-name>
<url-pattern>/HelloTest</url-pattern>
</servlet-mapping>
</web-app>
我做错了什么?
答案 0 :(得分:0)
好的,谢谢@Amos我让它的工作方式如下:
Velocity.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath");
Velocity.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName());
ctx.put("name", "Velocity Test");
template = Velocity.getTemplate("hello.vm");