Apache的Velocity - getTemplate（）。如何传递字符串/对象而不是.VM文件

Question

Apache的Velocity - getTemplate（）。其实它允许传递.vm文件名，我可以在这里传递字符串/对象吗？有什么方法可以传递字符串/对象吗？

Answer 1

看看我搜索了在同一个问题小时StringResourceLoader

Answer 2

，终于找到了单元测试代码，显示一切必要的。

http://svn.apache.org/repos/asf/velocity/engine/trunk/velocity-engine-core/src/test/java/org/apache/velocity/test/StringResourceLoaderRepositoryTestCase.java

Answer 3

这是为我工作的一个示例代码。
速度版本：1.7
我使用log4j作为记录器。

import org.apache.log4j.Logger; 
import org.apache.velocity.Template; 
import org.apache.velocity.VelocityContext; 
import org.apache.velocity.app.Velocity; 
import org.apache.velocity.app.VelocityEngine; 
import org.apache.velocity.runtime.RuntimeConstants; 
import org.apache.velocity.runtime.resource.loader.StringResourceLoader; 
import org.apache.velocity.runtime.resource.util.StringResourceRepository; 


private static void velocityWithStringTemplateExample() { 
    // Initialize the engine. 
    VelocityEngine engine = new VelocityEngine(); 
    engine.setProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS, "org.apache.velocity.runtime.log.Log4JLogChute"); 
    engine.setProperty("runtime.log.logsystem.log4j.logger", LOGGER.getName()); 
    engine.setProperty(Velocity.RESOURCE_LOADER, "string"); 
    engine.addProperty("string.resource.loader.class", StringResourceLoader.class.getName()); 
    engine.addProperty("string.resource.loader.repository.static", "false"); 
    // engine.addProperty("string.resource.loader.modificationCheckInterval", "1"); 
    engine.init(); 

    // Initialize my template repository. You can replace the "Hello $w" with your String. 
    StringResourceRepository repo = (StringResourceRepository) engine.getApplicationAttribute(StringResourceLoader.REPOSITORY_NAME_DEFAULT); 
    repo.putStringResource("woogie2", "Hello $w"); 

    // Set parameters for my template. 
    VelocityContext context = new VelocityContext(); 
    context.put("w", "world!"); 

    // Get and merge the template with my parameters. 
    Template template = engine.getTemplate("woogie2"); 
    StringWriter writer = new StringWriter(); 
    template.merge(context, writer); 

    // Show the result. 
    System.out.println(writer.toString()); 
}