如何使用proguard来混淆带有依赖项的jar文件(how to obfuscate jar file with dependencies by using proguard)

 我在Idea IDE中构建了一个与maven有两个依赖关系（fastjson和volley）的jar，现在我想混淆我的jar但没有混淆两个依赖jar，我试过在proguardgui中做这个，我的proguard.pro内容如下： 
 
-injars android_video_tv_sdk_player-1.0.0-SNAPSHOT-shaded.jar
-outjars android_video_tv_sdk_player-1.0.0-SNAPSHOT-proguard.jar

-libraryjars 'C:\Users\hangl\IDE\sdk\platforms\android-16\android.jar'
-libraryjars 'C:\Users\hangl\IDE\sdk\extras\android\support\v4\android-support-v4.jar'

-dontoptimize
-dontusemixedcaseclassnames
-dontpreverify
-verbose
-dontwarn com.alibaba.**,com.android.volley.**


-keep class com.ifeng.exception.InvalidParamsException

-keep class com.ifeng.media.** {
    <fields>;
    <methods>;
}

-keep class com.alibaba.** {
    <fields>;
    <methods>;
}

-keep class com.android.volley.** {
    <fields>;
    <methods>;
}

# Keep - Applications. Keep all application classes, along with their 'main'
# methods.
-keepclasseswithmembers public class * {
    public static void main(java.lang.String[]);
}

# Also keep - Enumerations. Keep the special static methods that are required in
# enumeration classes.
-keepclassmembers enum  PlayState {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

# Keep names - Native method names. Keep all native class/method names.
-keepclasseswithmembers,allowshrinking class * {
    native <methods>;
}

# Remove - System method calls. Remove all invocations of System
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.System {
    public static long currentTimeMillis();
    static java.lang.Class getCallerClass();
    public static int identityHashCode(java.lang.Object);
    public static java.lang.SecurityManager getSecurityManager();
    public static java.util.Properties getProperties();
    public static java.lang.String getProperty(java.lang.String);
    public static java.lang.String getenv(java.lang.String);
    public static java.lang.String mapLibraryName(java.lang.String);
    public static java.lang.String getProperty(java.lang.String,java.lang.String);
}
 
 我的超级jar的主要包是com.ifeng.media，我想在这个包下保持类，并在其他包中混淆其他类，但在我处理混淆了我的jar之后，我发现混淆类中的大多数方法和文件都消失了！ 这是一个例子，我定义了类LogUtils.java，这里是代码： 
 
/**
 * Created by hangl on 2014/9/19.
 */
public class LogUtils {

    private static boolean isDebug = true;

    public static void d(String tag, String msg) {
        if (isDebug) {
            Log.d(tag, msg);
        }
    }

    public static void v(String tag, String msg) {
        if (isDebug) {
            Log.v(tag, msg);
        }
    }

    public static void i(String tag, String msg) {
        if (isDebug) {
            Log.i(tag, msg);
        }
    }
    public static void e(String tag, String msg) {
        if (isDebug) {
            Log.e(tag, msg);
        }
    }
    public static void w(String tag, String msg) {
        if (isDebug) {
            Log.w(tag, msg);
        }
    }
}
 
 在混淆之后，它变成了类a.class，现在它的代码变成你现在看到的： 
 
import android.util.Log;

public class a
{
  private static boolean a = true;

  public static void a(String paramString1, String paramString2)
  {
    if (a) {
      Log.d(paramString1, paramString2);
    }
  }

  public static void b(String paramString1, String paramString2)
  {
    if (a) {
      Log.e(paramString1, paramString2);
    }
  }
}
 
 我不知道为什么，其他类中也存在同样的情况，我的proguard.pro文件有问题吗？ 谁能告诉我我需要做什么？ 如果你有其他方法来达到目标​​，比如在maven pom.xml中安装插件来混淆maven mudule（我已经尝试了这个，但我遇到同样的问题），请告诉我你的方式。 谢谢！ 

I'm build a jar which has two dependencies(fastjson and volley) with maven in Idea IDE, now I want to obfuscate my jar but without obfuscate two dependencies jars, I've tried to do this in proguardgui, my proguard.pro content as follow:
 
-injars android_video_tv_sdk_player-1.0.0-SNAPSHOT-shaded.jar
-outjars android_video_tv_sdk_player-1.0.0-SNAPSHOT-proguard.jar

-libraryjars 'C:\Users\hangl\IDE\sdk\platforms\android-16\android.jar'
-libraryjars 'C:\Users\hangl\IDE\sdk\extras\android\support\v4\android-support-v4.jar'

-dontoptimize
-dontusemixedcaseclassnames
-dontpreverify
-verbose
-dontwarn com.alibaba.**,com.android.volley.**


-keep class com.ifeng.exception.InvalidParamsException

-keep class com.ifeng.media.** {
    <fields>;
    <methods>;
}

-keep class com.alibaba.** {
    <fields>;
    <methods>;
}

-keep class com.android.volley.** {
    <fields>;
    <methods>;
}

# Keep - Applications. Keep all application classes, along with their 'main'
# methods.
-keepclasseswithmembers public class * {
    public static void main(java.lang.String[]);
}

# Also keep - Enumerations. Keep the special static methods that are required in
# enumeration classes.
-keepclassmembers enum  PlayState {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

# Keep names - Native method names. Keep all native class/method names.
-keepclasseswithmembers,allowshrinking class * {
    native <methods>;
}

# Remove - System method calls. Remove all invocations of System
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.System {
    public static long currentTimeMillis();
    static java.lang.Class getCallerClass();
    public static int identityHashCode(java.lang.Object);
    public static java.lang.SecurityManager getSecurityManager();
    public static java.util.Properties getProperties();
    public static java.lang.String getProperty(java.lang.String);
    public static java.lang.String getenv(java.lang.String);
    public static java.lang.String mapLibraryName(java.lang.String);
    public static java.lang.String getProperty(java.lang.String,java.lang.String);
}
 
my uber jar's main package is com.ifeng.media, I want keep class under this package and obfuscate other classes in other packages, but after I process obfuscate my jar, I found most methods and fileds in obfuscated class just gone! Here's an example, I define class LogUtils.java, here's the code:
 
/**
 * Created by hangl on 2014/9/19.
 */
public class LogUtils {

    private static boolean isDebug = true;

    public static void d(String tag, String msg) {
        if (isDebug) {
            Log.d(tag, msg);
        }
    }

    public static void v(String tag, String msg) {
        if (isDebug) {
            Log.v(tag, msg);
        }
    }

    public static void i(String tag, String msg) {
        if (isDebug) {
            Log.i(tag, msg);
        }
    }
    public static void e(String tag, String msg) {
        if (isDebug) {
            Log.e(tag, msg);
        }
    }
    public static void w(String tag, String msg) {
        if (isDebug) {
            Log.w(tag, msg);
        }
    }
}
 
after obfuscate,it became class a.class, now its code became what you see now:
 
import android.util.Log;

public class a
{
  private static boolean a = true;

  public static void a(String paramString1, String paramString2)
  {
    if (a) {
      Log.d(paramString1, paramString2);
    }
  }

  public static void b(String paramString1, String paramString2)
  {
    if (a) {
      Log.e(paramString1, paramString2);
    }
  }
}
 
I don't know why,same situation exist in other classes, Is there something wrong with my proguard.pro file? can anyone tell me what I need to do? If you have other method to reach the goal, like install plugins in maven pom.xml to obfuscate maven mudule(I've already tried this but I face same problem), please show me your way. Thanks!

原文：https://stackoverflow.com/questions/25995733