是否可以将方法参数传递给方法的注释? [英] Is it possible to pass method parameter to annotation on a method?

问题描述

比方说，我们有这种带有注释的方法:

Let's say we have this method with annotation:

@Cached(key="search" + id)
public static List<String> search(String id) {
    //...
}

我想将参数"id"传递给@Cached批注的键.

I want to pass parameter "id" to the @Cached annotation's key.

是否可以在Java中执行此操作?

Is it possible to do this in java?

推荐答案

否.这是不可能的.

Java注释的属性必须是Java语言规范(

Attributes of Java Annotations must be constant expressions as defined by the Java Language Specification (http://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls-15.28)

我认为您的问题之前已经得到回答: 摆脱"；批注属性的值必须是一个常量表达式消息

I think your question has been answered before: Get rid of "The value for annotation attribute must be a constant expression" message

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