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

时间:2011-06-29 13:59:56

标签: java velocity

Apache的速度 - 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?是否有任何方法可以传递字符串/对象?

3 个答案:

答案 0 :(得分:2)

这是一个适合我的示例代码。
速度版: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());
}

答案 1 :(得分:1)

查看StringResourceLoader

答案 2 :(得分:1)

我在同一个问题上搜索了几个小时,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