只是一个基于 maven 结构的简单速度独立应用程序。这是用 Scala 编写的代码片段,用于在 ${basedir}/src/main/resources
文件夹中呈现模板 helloworld.vm
:
com.ggd543.velocitydemo
import org.apache.velocity.app.VelocityEngine
import org.apache.velocity.VelocityContext
import java.io.StringWriter
/**
* @author ${user.name}
*/
object App {
def main(args: Array[String]) {
//First , get and initialize an engine
val ve = new VelocityEngine();
ve.init();
//Second, get the template
val resUrl = getClass.getResource("/helloworld.vm")
val t = ve.getTemplate("helloworld.vm"); // not work
// val t = ve.getTemplate("/helloworld.vm"); // not work
// val t = ve.getTemplate(resUrl.toString); // not work yet
//Third, create a context and add data
val context = new VelocityContext();
context.put("name", "Archer")
context.put("site", "http://www.baidu.com")
//Finally , render the template into a StringWriter
val sw = new StringWriter
t.merge(context, sw)
println(sw.toString);
}
}
在编译运行程序时,出现如下错误:
2012-1-29 14:03:59 org.apache.velocity.runtime.log.JdkLogChute log
严重: ResourceManager : unable to find resource '/helloworld.vm' in any resource loader.
Exception in thread "main" org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource '/helloworld.vm'
at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:474)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:352)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1533)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1514)
at org.apache.velocity.app.VelocityEngine.getTemplate(VelocityEngine.java:373)
at com.ggd543.velocitydemo.App$.main(App.scala:20)
at com.ggd543.velocitydemo.App.main(App.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Process finished with exit code 1
最佳答案
很好的问题 - 我今天使用 Ecilpse 解决了我的问题:
将您的模板放在与源代码相同的文件夹层次结构中(即使您将其包含在构建路径中,也不要放在单独的文件夹层次结构中),如下所示:
在您的代码中只需使用以下代码行(假设您只想将日期作为数据传递):
VelocityEngine ve = new VelocityEngine(); ve.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath"); ve.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName()); ve.init(); VelocityContext context = new VelocityContext(); context.put("date", getMyTimestampFunction()); Template t = ve.getTemplate( "templates/email_html_new.vm" ); StringWriter writer = new StringWriter(); t.merge( context, writer );
看看我们如何首先告诉 VelocityEngine 在类路径中查找。没有这个,它不知道去哪里找。
关于java - 找不到速度模板资源,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9051413/