java - 如何将DEX反编译成Java源代码？

Question

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

Answer 1

很简单

获取这些工具:

1. dex2jar将dex文件翻译成jar文件

2. jd-gui查看jar中的java文件

由于dex2jar做了一些优化，源代码可读性很强。

程序:

下面是如何反编译的过程:

第 1 步:

将test_apk-debug.apk中的classes.dex转换为test_apk-debug_dex2jar.jar

d2j-dex2jar.sh -f -o output_jar.jar apk_to_decompile.apk
d2j-dex2jar.sh -f -o output_jar.jar dex_to_decompile.dex

Note 1: In the Windows machines all the .sh scripts are replaced by .bat scripts

Note 2: On linux/mac don't forget about sh or bash. The full command should be:

sh d2j-dex2jar.sh -f -o output_jar.jar apk_to_decompile.apk 

Note 3: Also, remember to add execute permission to dex2jar-X.X directory e.g. sudo chmod -R +x dex2jar-2.0

dex2jar documentation

第 2 步:

在JD-GUI中打开jar