是否可以将方法参数传递给方法的注释?
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?
答
否.这是不可能的.
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