重载JNI方法 [英] Overload JNI Method

问题描述

我有一个带有两个参数的现有JNI方法.已经使用了一段时间，所以我不想改变它，以免释放愤怒的顾客的愤怒.

I have an existing JNI method with two parameters. Been around for a while, in use, so I don't want to just change it lest the wrath of angry customers be unleashed.

但是，我现在需要进行调整.

But, I now need to make an adjustment.

因此，我想用额外的参数制作第二个重载方法，并弃用两参数版本.该部分运行良好，jar可以构建并运行，没有任何问题.

So, I thought, make a second overloaded method with the extra parameter and deprecate the two-parameter version. That part went fine, jar builds and runs with no issues.

问题出在C ++方面...我定义了两个方法，一个方法是另一个的包装器(两个参数调用三个参数的版本)，但是当我导出两个方法时，会收到:

The problem is in the C++ side... I defined two methods, one being a wrapper for the other (two parameter calls the three parameter version), but, when I went to export the two methods, I receive:

Error   1   error C2733: second C linkage of overloaded function 'Java_com_xxx' not allowed

那么，该怎么做才能保留旧方法名称并添加具有新参数的新方法?这可行吗?

So, what do I do to keep the old method name and add a new method with new parameters? Is this doable?

推荐答案

在Java文件上运行javah，声明本机方法，您将看到需要两个不同的Java_com_xxx函数. C级声明必须唯一.

Run javah on your Java file declaring the native methods and you will see that you need two different Java_com_xxx functions. The C-level declarations must be unique.

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