Java访问局部变量名称 [英] Java Access to Local Variable Names

问题描述

我正在编写一个程序，在程序中，我想在程序执行期间访问局部变量的变量名，并将其从外部传递出去。我知道Java将在编译期间转储本地变量名称，除非在调试模式下进行编译。

I'm currently writing a program in which I would like to access the variable names of local variables during execution of a program and pass them off externally. I'm aware that Java will dump local variable names during compilation unless compiled in debug mode.

在查看一些内容之后，看起来JDI / JPDA是要走的路对于这种工作。假设 ref 指的是 ThreadReference ，以下是我到目前为止：

After looking around some, it seems that JDI/JPDA is the way to go for this kind of work. Assuming ref refers to a ThreadReference, the following is what I have thus far:

ref.suspend();
StackFrame currentFrame = ref.frame(0);
List<LocalVariable> vars = currentFrame.visibleVariables();
ref.resume();

两个问题：

1. 我在正确的轨道上，还是有更好的方法呢？


2. 如何获取 ThreadReference 设置为 ref ？ LocatableEvent 似乎是我需要的，但任何人都可以提供一个如何使用它的例子？

1. Am I on the right track, or is there a better way to do this?
2. How do I acquire the ThreadReference to set to ref? LocatableEvent seems to be what I need, but can anyone provide an example on how to use it?

非常感谢提前！

推荐答案

没有很多人有这方面的经验。 >
如果我在你的鞋子我会看看示例代码（ http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/jpda/examples.html ）和也可以在 JPDA文档

Not a lot of people have experience with this stuff.
If I were in you shoes I would look at the sample code ( http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/jpda/examples.html ) and also at the JPDA docs

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