将DEX反编译成Java源代码

本文翻译自：decompiling DEX into Java sourcecode

如何将Android DEX（VM字节码）文件反编译成相应的Java源代码？

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#1楼

参考：https://stackoom.com/question/5FAr/将DEX反编译成Java源代码

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#2楼

Once you downloaded your APK file , You need to do the following steps to get a editable java code/document. 下载APK文件后，您需要执行以下步骤以获取可编辑的Java代码/文档。

1. Convert your apk file to zip (while start your download don't go with "save" option , just go with "save as" and mention your extension as .zip) by doing like this you may avoid APKTOOL... 将您的apk文件转换为zip（开始下载时不要使用“保存”选项，只需使用“另存为”并将您的扩展名称为.zip），这样做可以避免APKTOOL ...
2. Extract the zip file , there you can find somefilename.dex. 解压缩zip文件，在那里你可以找到somefilename.dex。 so now we need to convert dex -> .class 所以现在我们需要转换dex - > .class
3. To do that, you need "dex2jar"(you can download it from http://code.google.com/p/dex2jar/ , after extracted, in command prompt you have to mention like, [D:\\dex2jar-0.09>dex2jar somefilename.dex] (Keep in mind that your somefilename.dex must be inside the same folder where you have keep your dex2jar.) 要做到这一点，你需要“dex2jar”（你可以从http://code.google.com/p/dex2jar/下载，解压后，在命令提示符中你必须提到， [D：\\ dex2jar-0.09> dex2jar somefilename.dex] （请记住，somefilename.dex必须位于保存dex2jar的同一文件夹中。）
4. Download jad from http://www.viralpatel.net/blogs/download/jad/jad.zip and extract it. 从http://www.viralpatel.net/blogs/download/jad/jad.zip下载jad并解压缩。 Once extracted you can see two files like "jad.exe" and "Readme.txt" (sometimes "jad.txt" may there instead of "jad.exe", so just rename its extension as.exe to run) 提取后你可以看到两个文件，如“jad.exe”和“Readme.txt”（有时候“jad.txt”可能代替“jad.exe”，所以只需将其扩展名as.exe重命名即可运行）
5. Finally, in command prompt you have to mention like [D:\\jad>jad -sjava yourfilename.class] it will parse your class file into editable java document. 最后，在命令提示符中你必须提到像[D：\\ jad> jad -sjava yourfilename.class]它会将你的类文件解析为可编辑的java文档。

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#3楼

I'd actually recommend going here: https://github.com/JesusFreke/smali 我实际上建议你去这里： https ： //github.com/JesusFreke/smali

It provides BAKSMALI, which is a most excellent reverse-engineering tool for DEX files. 它提供了BAKSMALI，这是DEX文件最优秀的逆向工程工具。 It's made by JesusFreke, the guy who created the fameous ROMs for Android. 它是由JesusFreke制作的，他为Android创造了成名的ROM。

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#4楼

With Dedexer , you can disassemble the .dex file into dalvik bytecode ( .ddx ). 使用Dedexer ，您可以将.dex文件反汇编为dalvik字节码（ .ddx ）。

Decompiling towards Java isn't possible as far as I know. 据我所知，不可能对Java进行反编译。
You can read about dalvik bytecode here . 你可以在这里阅读dalvik字节码。

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#5楼

Sometimes you get broken code, when using dex2jar / apktool , most notably in loops. 当使用dex2jar / apktool ，有时你会破坏代码，最明显的是在循环中。 To avoid this, use jadx , which decompiles dalvik bytecode into java source code, without creating a .jar / .class file first as dex2jar does (apktool uses dex2jar I think). 为了避免这种情况，使用jadx ，它将dalvik字节码反编译成java源代码，而不是像dex2jar那样创建.jar / .class文件（我认为apktool使用dex2jar）。 It is also open-source and in active development. 它也是开源和积极的开发。 It even has a GUI, for GUI-fanatics. 它甚至还有一个GUI，用于GUI狂热分子。 Try it! 试试吧！

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#6楼

If you're not looking to download dex2jar, then just use the apk_grabber python script to decompile any apk into jar files. 如果你不想下载dex2jar，那么只需使用apk_grabber python脚本将任何apk反编译成jar文件。 Then you read them with jd-gui. 然后你用jd-gui读它们。