@符号在java中是什么意思? [英] What does the @ sign means in java?

问题描述

下面是代码片段.

@Intercepts({@Signature(
type= Executor.class,
method = "update",
args = {MappedStatement.class,Object.class})})
public class

谁能向我解释@符号在Java中的含义?

Can someone explain to me what @ sign means in Java?

推荐答案

这是一个 注释.

注解是元数据的一种形式.它们提供有关不属于程序本身的程序的数据.注解对它们注解的代码的操作没有直接影响.

Annotations are a form of metadata. They provide data about a program that is not part of the program itself. Annotations have no direct effect on the operation of the code they annotate.

注解确实会影响工具和库处理程序的方式，进而影响正在运行的程序的语义.可以从源文件、类文件或在运行时反射地读取注释.

Annotations do affect the way programs are treated by tools and libraries, which can in turn affect the semantics of the running program. Annotations can be read from source files, class files, or reflectively at run time.

这篇关于@符号在java中是什么意思?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！