Question

我在注释处理器内部初始化了速度引擎，该处理器扩展了AbstractProcessor，如下所示：

public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv)
{

    String fqClassName = null;
    String className = null;
    String packageName = null;
    Map<String, VariableElement> fields = new HashMap<String, VariableElement>();
    Map<String, ExecutableElement> methods = new HashMap<String, ExecutableElement>();

    ...

    if (fqClassName != null)
    {

        Properties props = new Properties();
        URL url = this.getClass().getClassLoader().getResource("velocity.properties");

        VelocityContext velocityContext = null;
        Template template = null;
        JavaFileObject javaFileObject;
        Writer writer;

        try
        {
            processingEnv.getMessager().printMessage(Kind.NOTE, "Before");
            props.load(url.openStream());

            processingEnv.getMessager().printMessage(Kind.NOTE, "Props: " + props);

            VelocityEngine velocityEngine = new VelocityEngine();
            velocityEngine.setProperty("resource.loader", "classpath");
            velocityEngine.init();
            ...
        } catch (Exception e1)
        {
            processingEnv.getMessager().printMessage(Kind.ERROR,
                    "Exception: " + e1.getMessage() + " : " + e1.getStackTrace());
        }

    }

    return false;

}

调用init()方法时会发生异常。

我将带有Velocity jar文件的处理器导出为jar文件，并配置eclipse以将其用作注释处理器。

Answer 1

您正在将自定义属性加载到element变量中，但不会将其传递给Velocity。

因此，您应该简单地执行以下操作：

locals {
  outbound_ip_addresses_list = "${split(",", azurerm_app_service.testap.outbound_ip_addresses)}"
}

output "first_ip" {
  value = "${local.outbound_ip_addresses_list[0]}"
}

为什么我在Velocity中收到此错误“ Velocity未正确初始化。”？

1 个答案: