是否可以查看 Java 类文件的字节码
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Is it possible to view a Java class files bytecode
提问by Popgalop
I am working on a bytecode manipulation/generation in Java and I was just wondering if there is an easy way I could check the bytecode. I do not want to decompile the file, I would like to actually look at the compiled bytecode. I do not need to edit it. Any links or programs for doing this would be acceptable answers.
我正在 Java 中进行字节码操作/生成，我只是想知道是否有一种简单的方法可以检查字节码。我不想反编译文件，我想实际看看编译后的字节码。我不需要编辑它。任何用于执行此操作的链接或程序都是可以接受的答案。
采纳答案by Mike Strobel
I've been working on a decompilerthat has a color-coded bytecode output mode (which I find far more readable than javap). It can also output Java code or an intermediate 'bytecode AST'.
我一直在研究具有颜色编码字节码输出模式的反编译器（我发现它比 javap 更具可读性）。它还可以输出 Java 代码或中间的“字节码 AST”。
回答by maba
Since you wanted to be guided to some program that can easily show you the byte code then my suggestion is to use IntelliJ IDEA since it has built-in support for viewing byte code.
由于您希望被引导到一些可以轻松向您显示字节码的程序，因此我的建议是使用 IntelliJ IDEA，因为它具有查看字节码的内置支持。
Here's an example how to do it (it can also be mapped to some keys of your choice):
这是一个如何做到的示例（它也可以映射到您选择的某些键）：
It is very easy, and it can surely be done in eclipse or NetBeans as well.
这很容易，当然也可以在 eclipse 或 NetBeans 中完成。
回答by Bozho
回答by Oak
The javapcommand-line tool, which is bundled with Oracle's JDK, gives a detailed textual dump of .class files along with the constant pool and all functions' bytecode content. Just run it with -vto get a full dump.
javap与 Oracle 的 JDK 捆绑在一起的命令行工具提供了 .class 文件的详细文本转储以及常量池和所有函数的字节码内容。只需运行它-v即可获得完整的转储。
