现在我想要使用一个固定的字符串作为Key,类似于下面的例子，但是会报SpEL解析错误

@Cached(area = "test", name = "name", key = "key1")
public Response getResponse(){

}

org.springframework.expression.spel.SpelEvaluationException: EL1008E: Property or field 'key1' cannot be found on object of type 'com.alicp.jetcache.anno.method.SpringCacheInvokeContext' - maybe not public or not valid