serialVersionUID命名约定 [英] serialVersionUID naming convention

问题描述

有什么可行的理由为什么serialVersionUID字段未命名为SERIAL_VERSION_UID?

Is there any viable reason why serialVersionUID field is not named SERIAL_VERSION_UID?

根据 java.io的文档可序列化:

可序列化的类可以显式声明其自己的serialVersionUID 通过声明一个名为"serialVersionUID"的字段，该字段必须为静态， 最终，且类型为long:

A serializable class can declare its own serialVersionUID explicitly by declaring a field named "serialVersionUID" that must be static, final, and of type long:

ANY-ACCESS-MODIFIER静态最终长serialVersionUID = 42L;

ANY-ACCESS-MODIFIER static final long serialVersionUID = 42L;

在引用 Java命名约定均为静态最终版本时strong>(常量)字段应首字母大写，其片段之间用下划线分隔.

While referring Java Naming Conventions all static final (constants) fields should be capitilized having its fragments separated with an underscore.

推荐答案

可能是因为serialVersionUID在此类约定存在之前已在Java序列化API中定义.

我找到了Sun在1997年发布的名为 Java代码约定的文档，在第16页的第9节中说:声明了类常量和ANSI的变量的名称 常量应该全部大写，并用下划线("")分隔单词."_

I found a document published by Sun in 1997 called Java Code Conventions that says in Section 9 on page 16 "The names of variables declared class constants and of ANSI constants should be alluppercase with words separated by underscores ("")."_

所以我的猜测是Sun并没有在自己的代码上强制执行自己的标准.

So my guess is that Sun just didn't enforce their own standards on their own code.

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