Apache's Velocity — getTemplate() .如何传递字符串/对象而不是 .虚拟机文件

Question

Apache的Velocity--getTemplate((。实际上它允许传递.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

这是一个适用于我的示例代码。
Velocity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());
}

Answer 2

我就同一个问题搜索了几个小时，终于找到了显示所有必要内容的单元测试代码。

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

Answer 3

查看StringResourceLoader