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      Proguard使用最新,最全教程,親自試驗(yàn)

       aaie_ 2016-01-23

      最近公司有一個(gè)項(xiàng)目,是外包項(xiàng)目,由于對(duì)方也有技術(shù)人員,出于技術(shù)上的保密,需要對(duì)class文件進(jìn)行二次處理,于是網(wǎng)上找了好久,只發(fā)現(xiàn)Proguard是用的最廣泛而且網(wǎng)上資料最多的。由于不是純JAVA項(xiàng)目,而是WEB項(xiàng)目,涉及到大量的配置文件,所以用這個(gè)工具稍顯吃力,于是開(kāi)始研究這玩意,花了好長(zhǎng)一段時(shí)間,重復(fù)試驗(yàn)了N次,終于整出來(lái)了,下面總結(jié)一下我的經(jīng)驗(yàn)。。

      首先我介紹下我要混淆的項(xiàng)目框架是jeecg+easyui+spring(包含xml配置文件,導(dǎo)致部分class文件不能直接混淆)。下面開(kāi)始說(shuō)詳細(xì)的操作步奏:

      1)將web項(xiàng)目的src目錄的java文件打包,只需要選擇java文件即可,其他配置文件什么的都不用選擇,如圖


      2)http://proguard./下載proguard,目前我下載并使用的是proguard5.1(注:本人下載頻道也有proguard5.1)。

      3)解壓proguard5.1,執(zhí)行 bin目錄下的proguardgui.bat


      然后會(huì)彈出如下圖所示窗口


      4)點(diǎn)擊左邊“input/output”菜單,然后點(diǎn)擊右邊的“Add input”按鈕,添加需要混淆的jar包,我這里是test.jar,然后點(diǎn)擊“add output”,選擇輸出的路徑和包名。


      5)下面開(kāi)始添加支持庫(kù),這個(gè)地方很重要,很多同學(xué)剛開(kāi)始使用這個(gè)工具的時(shí)候就是這里老是出問(wèn)題。
         點(diǎn)擊右邊的“add”。

      說(shuō)明一下,這里最好把你的eclipse里java project里的libraries所有Library的jar包,包含web項(xiàng)目lib下面的包,jdk中jre下面的包和servlet.jar包等copy到一個(gè)目錄,然后在這里加入這些jar包。系統(tǒng)默認(rèn)會(huì)帶上rt.jar,這里我們可以先remove掉,然后到j(luò)re下面copy所有的包。


      6)點(diǎn)擊“shrinking”,設(shè)置成如圖所示。


      7)點(diǎn)擊“obfuscation”,設(shè)置如圖所示


      8)點(diǎn)擊“optimization”設(shè)置如圖所示

      9)點(diǎn)擊information,設(shè)置如圖所示,注意選擇jdk版本(Target


      10) 點(diǎn)擊“process”,再點(diǎn)擊“save configuration”,在彈出的對(duì)話框中,輸入要保存的配置文件名稱(chēng)(這里我的是1111111.pro),最后點(diǎn)擊保存”.



      11) 設(shè)置基本完成,關(guān)掉proguard窗口,找到剛剛保存的配置文件,開(kāi)始手動(dòng)修改部分配置。

      以下是我的配置文件,經(jīng)測(cè)試通過(guò),手動(dòng)修改的部分為紅色字體

      -injars Test\test.jar

      -outjars Test\test--.jar

       

      -libraryjars 'D:\jdk1.6.0_45\jre\lib\rt.jar'

      -libraryjars hunxiao\a\activation-1.1.jar

      -libraryjars hunxiao\a\activiti-cxf-5.10.jar

      -libraryjars hunxiao\a\activiti-engine-5.10.jar

      -libraryjars hunxiao\a\activiti-spring-5.10.jar

      -libraryjars hunxiao\a\alt-rt.jar

      -libraryjars hunxiao\a\alt-string.jar

      -libraryjars hunxiao\a\aopalliance-1.0.jar

      -libraryjars hunxiao\a\c3p0-0.9.1.2.jar

      -libraryjars hunxiao\a\charsets.jar

      -libraryjars hunxiao\a\commons-beanutils-1.9.1.jar

      -libraryjars hunxiao\a\commons-codec-1.9.jar

      -libraryjars hunxiao\a\commons-collections-3.2.1.jar

      -libraryjars hunxiao\a\commons-digester-1.7.jar

      -libraryjars hunxiao\a\commons-digester3-3.2.jar

      -libraryjars hunxiao\a\commons-io-2.0.1.jar

      -libraryjars hunxiao\a\commons-lang3-3.3.jar

      -libraryjars hunxiao\a\commons-logging-1.1.3.jar

      -libraryjars hunxiao\a\cos-26Dec2008.jar

      -libraryjars hunxiao\a\deploy.jar

      -libraryjars hunxiao\a\dom4j-1.6.1.jar

      -libraryjars hunxiao\a\druid-0.2.6.jar

      -libraryjars hunxiao\a\edtftpj.jar

      -libraryjars hunxiao\a\ehcache-core-2.5.2.jar

      -libraryjars hunxiao\a\fastjson-1.2.0.jar

      -libraryjars hunxiao\a\fprzMock.jar

      -libraryjars hunxiao\a\freemarker-2.3.16.jar

      -libraryjars hunxiao\a\groovy-all-1.5.5.jar

      -libraryjars hunxiao\a\guava-16.0.1.jar

      -libraryjars hunxiao\a\hessian-4.0.7.jar

      -libraryjars hunxiao\a\itext-2.1.7.jar

      -libraryjars hunxiao\a\iTextAsian-2.1.jar

      -libraryjars hunxiao\a\jasperreports-3.7.4.jar

      -libraryjars hunxiao\a\javaws.jar

      -libraryjars hunxiao\a\javax.servlet.jsp.jstl-1.2.0.v201105211821.jar

      -libraryjars hunxiao\a\jce.jar

      -libraryjars hunxiao\a\jfinal-1.6-bin-with-src.jar

      -libraryjars hunxiao\a\jfinal-ext-eu.jar

      -libraryjars hunxiao\a\jna-4.1.0.jar

      -libraryjars hunxiao\a\jna-platform-4.1.0.jar

      -libraryjars hunxiao\a\joda-time-2.1.jar

      -libraryjars hunxiao\a\joor-0.9.3.jar

      -libraryjars hunxiao\a\jsse.jar

      -libraryjars hunxiao\a\jxls-core-0.9.9.jar

      -libraryjars hunxiao\a\kaptcha-2.3.2.jar

      -libraryjars hunxiao\a\log4j-1.2.16.jar

      -libraryjars hunxiao\a\management-agent.jar

      -libraryjars hunxiao\a\mybatis-3.1.1.jar

      -libraryjars hunxiao\a\mysql-connector-java-5.1.20-bin.jar

      -libraryjars hunxiao\a\ojdbc6.jar

      -libraryjars hunxiao\a\org.apache.taglibs.standard.glassfish-1.2.0.v201112081803.jar

      -libraryjars hunxiao\a\org.springframework.aop-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.asm-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.aspects-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.beans-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.context-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.context.support-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.core-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.expression-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.instrument-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.instrument.tomcat-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.jdbc-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.jms-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.org.apache.commons.logging-1.1.1.jar

      -libraryjars hunxiao\a\org.springframework.orm-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.oxm-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.test-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.transaction-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.web-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.web.portlet-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\org.springframework.web.servlet-3.1.1.RELEASE.jar

      -libraryjars hunxiao\a\plugin.jar

      -libraryjars hunxiao\a\poi-3.9.jar

      -libraryjars hunxiao\a\quartz-1.8.6.jar

      -libraryjars hunxiao\a\resources.jar

      -libraryjars hunxiao\a\rt.jar

      -libraryjars hunxiao\a\servlet-api.jar

      -libraryjars hunxiao\a\shiro-all-1.2.3.jar

      -libraryjars hunxiao\a\slf4j-api-1.6.1.jar

      -libraryjars hunxiao\a\slf4j-log4j12-1.6.1.jar

      -libraryjars hunxiao\a\sqlite-jdbc-3.7.2.jar

      -libraryjars hunxiao\a\ssosdk-2.0-SNAPSHOT.jar

      -libraryjars hunxiao\a\TaxWsBean.jar

       

      -target 1.6

      -dontshrink

      -useuniqueclassmembernames

      -keeppackagenames

      -keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,LocalVariable*Table,*Annotation*,Synthetic,EnclosingMethod

      -keepparameternames

       

      #保留單個(gè)類(lèi)

      -keep public class net.easyunion.common.shiro.ShiroDbRealm

      -keep public class net.easyunion.common.filters.SetCharacterEncodingFilter

      -keep public class net.easyunion.common.queue.MakeQueue

       

      #保留所有控制類(lèi)(如果是SSH三大框架,由于頁(yè)面發(fā)出請(qǐng)求到struts核心攔截器攔截之后,找到配置文件,配置文件必須對(duì)應(yīng)action里面的類(lèi)和方法,這里就不能混淆類(lèi)和方法,所以所有的action類(lèi)包括里面的方法都不需要混淆,按照如下方式設(shè)置就行,保留所有的Action類(lèi)名和方法名)

      -keep public class net.easyunion.app.invoice.controller.* {*;}

      -keep public class net.easyunion.app.sysseting.controller.* {*;}

      -keep public class net.easyunion.app.system.controller.* {*;}

      -keep public class net.easyunion.app.system.model.* {*;}

      -keep public class net.easyunion.app.supplier.controller.*  {*;}

      -keep public class net.easyunion.common.controller.*  {*;}

       

      -keep public class net.easyunion.app.Config

       

       

      # Keep names - Native method names. Keep all native class/method names.

      -keepclasseswithmembers,includedescriptorclasses,allowshrinking class * {

          native <methods>;

      }

       

      # Keep names - _class method names. Keep all .class method names. This may be

      # useful for libraries that will be obfuscated again with different obfuscators.

      -keepclassmembers,allowshrinking class * {

          java.lang.Class class$(java.lang.String);

          java.lang.Class class$(java.lang.String,boolean);

      }

       

      # 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);

      }

       

      # Remove - Math method calls. Remove all invocations of Math

      # methods without side effects whose return values are not used.

      -assumenosideeffects public class java.lang.Math {

          public static double sin(double);

          public static double cos(double);

          public static double tan(double);

          public static double asin(double);

          public static double acos(double);

          public static double atan(double);

          public static double toRadians(double);

          public static double toDegrees(double);

          public static double exp(double);

          public static double log(double);

          public static double log10(double);

          public static double sqrt(double);

          public static double cbrt(double);

          public static double IEEEremainder(double,double);

          public static double ceil(double);

          public static double floor(double);

          public static double rint(double);

          public static double atan2(double,double);

          public static double pow(double,double);

          public static int round(float);

          public static long round(double);

          public static double random();

          public static int abs(int);

          public static long abs(long);

          public static float abs(float);

          public static double abs(double);

          public static int max(int,int);

          public static long max(long,long);

          public static float max(float,float);

          public static double max(double,double);

          public static int min(int,int);

          public static long min(long,long);

          public static float min(float,float);

          public static double min(double,double);

          public static double ulp(double);

          public static float ulp(float);

          public static double signum(double);

          public static float signum(float);

          public static double sinh(double);

          public static double cosh(double);

          public static double tanh(double);

          public static double hypot(double,double);

          public static double expm1(double);

          public static double log1p(double);

      }

       

      # Remove - Number method calls. Remove all invocations of Number

      # methods without side effects whose return values are not used.

      -assumenosideeffects public class java.lang.* extends java.lang.Number {

          public static java.lang.String toString(byte);

          public static java.lang.Byte valueOf(byte);

          public static byte parseByte(java.lang.String);

          public static byte parseByte(java.lang.String,int);

          public static java.lang.Byte valueOf(java.lang.String,int);

          public static java.lang.Byte valueOf(java.lang.String);

          public static java.lang.Byte decode(java.lang.String);

          public int compareTo(java.lang.Byte);

          public static java.lang.String toString(short);

          public static short parseShort(java.lang.String);

          public static short parseShort(java.lang.String,int);

          public static java.lang.Short valueOf(java.lang.String,int);

          public static java.lang.Short valueOf(java.lang.String);

          public static java.lang.Short valueOf(short);

          public static java.lang.Short decode(java.lang.String);

          public static short reverseBytes(short);

          public int compareTo(java.lang.Short);

          public static java.lang.String toString(int,int);

          public static java.lang.String toHexString(int);

          public static java.lang.String toOctalString(int);

          public static java.lang.String toBinaryString(int);

          public static java.lang.String toString(int);

          public static int parseInt(java.lang.String,int);

          public static int parseInt(java.lang.String);

          public static java.lang.Integer valueOf(java.lang.String,int);

          public static java.lang.Integer valueOf(java.lang.String);

          public static java.lang.Integer valueOf(int);

          public static java.lang.Integer getInteger(java.lang.String);

          public static java.lang.Integer getInteger(java.lang.String,int);

          public static java.lang.Integer getInteger(java.lang.String,java.lang.Integer);

          public static java.lang.Integer decode(java.lang.String);

          public static int highestOneBit(int);

          public static int lowestOneBit(int);

          public static int numberOfLeadingZeros(int);

          public static int numberOfTrailingZeros(int);

          public static int bitCount(int);

          public static int rotateLeft(int,int);

          public static int rotateRight(int,int);

          public static int reverse(int);

          public static int signum(int);

          public static int reverseBytes(int);

          public int compareTo(java.lang.Integer);

          public static java.lang.String toString(long,int);

          public static java.lang.String toHexString(long);

          public static java.lang.String toOctalString(long);

          public static java.lang.String toBinaryString(long);

          public static java.lang.String toString(long);

          public static long parseLong(java.lang.String,int);

          public static long parseLong(java.lang.String);

          public static java.lang.Long valueOf(java.lang.String,int);

          public static java.lang.Long valueOf(java.lang.String);

          public static java.lang.Long valueOf(long);

          public static java.lang.Long decode(java.lang.String);

          public static java.lang.Long getLong(java.lang.String);

          public static java.lang.Long getLong(java.lang.String,long);

          public static java.lang.Long getLong(java.lang.String,java.lang.Long);

          public static long highestOneBit(long);

          public static long lowestOneBit(long);

          public static int numberOfLeadingZeros(long);

          public static int numberOfTrailingZeros(long);

          public static int bitCount(long);

          public static long rotateLeft(long,int);

          public static long rotateRight(long,int);

          public static long reverse(long);

          public static int signum(long);

          public static long reverseBytes(long);

          public int compareTo(java.lang.Long);

          public static java.lang.String toString(float);

          public static java.lang.String toHexString(float);

          public static java.lang.Float valueOf(java.lang.String);

          public static java.lang.Float valueOf(float);

          public static float parseFloat(java.lang.String);

          public static boolean isNaN(float);

          public static boolean isInfinite(float);

          public static int floatToIntBits(float);

          public static int floatToRawIntBits(float);

          public static float intBitsToFloat(int);

          public static int compare(float,float);

          public boolean isNaN();

          public boolean isInfinite();

          public int compareTo(java.lang.Float);

          public static java.lang.String toString(double);

          public static java.lang.String toHexString(double);

          public static java.lang.Double valueOf(java.lang.String);

          public static java.lang.Double valueOf(double);

          public static double parseDouble(java.lang.String);

          public static boolean isNaN(double);

          public static boolean isInfinite(double);

          public static long doubleToLongBits(double);

          public static long doubleToRawLongBits(double);

          public static double longBitsToDouble(long);

          public static int compare(double,double);

          public boolean isNaN();

          public boolean isInfinite();

          public int compareTo(java.lang.Double);

          public byte byteValue();

          public short shortValue();

          public int intValue();

          public long longValue();

          public float floatValue();

          public double doubleValue();

          public int compareTo(java.lang.Object);

          public boolean equals(java.lang.Object);

          public int hashCode();

          public java.lang.String toString();

      }

       

      # Remove - String method calls. Remove all invocations of String

      # methods without side effects whose return values are not used.

      -assumenosideeffects public class java.lang.String {

          public static java.lang.String copyValueOf(char[]);

          public static java.lang.String copyValueOf(char[],int,int);

          public static java.lang.String valueOf(boolean);

          public static java.lang.String valueOf(char);

          public static java.lang.String valueOf(char[]);

          public static java.lang.String valueOf(char[],int,int);

          public static java.lang.String valueOf(double);

          public static java.lang.String valueOf(float);

          public static java.lang.String valueOf(int);

          public static java.lang.String valueOf(java.lang.Object);

          public static java.lang.String valueOf(long);

          public boolean contentEquals(java.lang.StringBuffer);

          public boolean endsWith(java.lang.String);

          public boolean equalsIgnoreCase(java.lang.String);

          public boolean equals(java.lang.Object);

          public boolean matches(java.lang.String);

          public boolean regionMatches(boolean,int,java.lang.String,int,int);

          public boolean regionMatches(int,java.lang.String,int,int);

          public boolean startsWith(java.lang.String);

          public boolean startsWith(java.lang.String,int);

          public byte[] getBytes();

          public byte[] getBytes(java.lang.String);

          public char charAt(int);

          public char[] toCharArray();

          public int compareToIgnoreCase(java.lang.String);

          public int compareTo(java.lang.Object);

          public int compareTo(java.lang.String);

          public int hashCode();

          public int indexOf(int);

          public int indexOf(int,int);

          public int indexOf(java.lang.String);

          public int indexOf(java.lang.String,int);

          public int lastIndexOf(int);

          public int lastIndexOf(int,int);

          public int lastIndexOf(java.lang.String);

          public int lastIndexOf(java.lang.String,int);

          public int length();

          public java.lang.CharSequence subSequence(int,int);

          public java.lang.String concat(java.lang.String);

          public java.lang.String replaceAll(java.lang.String,java.lang.String);

          public java.lang.String replace(char,char);

          public java.lang.String replaceFirst(java.lang.String,java.lang.String);

          public java.lang.String[] split(java.lang.String);

          public java.lang.String[] split(java.lang.String,int);

          public java.lang.String substring(int);

          public java.lang.String substring(int,int);

          public java.lang.String toLowerCase();

          public java.lang.String toLowerCase(java.util.Locale);

          public java.lang.String toString();

          public java.lang.String toUpperCase();

          public java.lang.String toUpperCase(java.util.Locale);

          public java.lang.String trim();

      }

       

      # Remove - StringBuffer method calls. Remove all invocations of StringBuffer

      # methods without side effects whose return values are not used.

      -assumenosideeffects public class java.lang.StringBuffer {

          public java.lang.String toString();

          public char charAt(int);

          public int capacity();

          public int codePointAt(int);

          public int codePointBefore(int);

          public int indexOf(java.lang.String,int);

          public int lastIndexOf(java.lang.String);

          public int lastIndexOf(java.lang.String,int);

          public int length();

          public java.lang.String substring(int);

          public java.lang.String substring(int,int);

      }

       

      # Remove - StringBuilder method calls. Remove all invocations of StringBuilder

      # methods without side effects whose return values are not used.

      -assumenosideeffects public class java.lang.StringBuilder {

          public java.lang.String toString();

          public char charAt(int);

          public int capacity();

          public int codePointAt(int);

          public int codePointBefore(int);

          public int indexOf(java.lang.String,int);

          public int lastIndexOf(java.lang.String);

          public int lastIndexOf(java.lang.String,int);

          public int length();

          public java.lang.String substring(int);

          public java.lang.String substring(int,int);

      }


      12)手動(dòng)設(shè)置完成后保存,然后重新打開(kāi)progrard,執(zhí)行 bin目錄下的proguardgui.bat。

         點(diǎn)擊第一個(gè)選項(xiàng)“Proguard”,再點(diǎn)擊“Load configuration”,選擇我們剛才保存的“1111111.pro”進(jìn)行加載。



      13然后點(diǎn)擊Process,然后點(diǎn)擊View configuration查看是否是已經(jīng)修改過(guò)后的配置文件。


      14) 確認(rèn)是最新修改過(guò)的配置文件,然后點(diǎn)擊process!開(kāi)始混淆。。

      如下圖,表示混淆成功。。



      15)我們可以用jd-gui反編譯工具看看混淆后的效果??梢钥吹剑霸O(shè)置不混淆的類(lèi)都沒(méi)有更換類(lèi)名,而混淆的類(lèi)都自動(dòng)更換為a,b,c等類(lèi)名了。到此,整個(gè)java項(xiàng)目混淆就成功了,然后把混淆成功的class文件拷貝到自己的web項(xiàng)目中,替換原先的class文件,然后用tomcat跑項(xiàng)目,發(fā)現(xiàn)和正常的class文件運(yùn)行效果一樣,項(xiàng)目正常運(yùn)行。



      16)說(shuō)明下配置

      參數(shù): 
       
      -include {filename}    從給定的文件中讀取配置參數(shù) 
      -basedirectory {directoryname}    指定基礎(chǔ)目錄為以后相對(duì)的檔案名稱(chēng) 
      -injars {class_path}    指定要處理的應(yīng)用程序jar,war,ear和目錄 
      -outjars {class_path}    指定處理完后要輸出的jar,war,ear和目錄的名稱(chēng) 
      -libraryjars {classpath}    指定要處理的應(yīng)用程序jar,war,ear和目錄所需要的程序庫(kù)文件 
      -dontskipnonpubliclibraryclasses    指定不去忽略非公共的庫(kù)類(lèi)。 
      -dontskipnonpubliclibraryclassmembers    指定不去忽略包可見(jiàn)的庫(kù)類(lèi)的成員。 

      保留選項(xiàng) 

      -keep {Modifier} {class_specification}    保護(hù)指定的類(lèi)文件和類(lèi)的成員 
      -keepclassmembers {modifier} {class_specification}    保護(hù)指定類(lèi)的成員,如果此類(lèi)受到保護(hù)他們會(huì)保護(hù)的更好
      -keepclasseswithmembers {class_specification}    保護(hù)指定的類(lèi)和類(lèi)的成員,但條件是所有指定的類(lèi)和類(lèi)成員是要存在。 
      -keepnames {class_specification}    保護(hù)指定的類(lèi)和類(lèi)的成員的名稱(chēng)(如果他們不會(huì)壓縮步驟中刪除) 
      -keepclassmembernames {class_specification}    保護(hù)指定的類(lèi)的成員的名稱(chēng)(如果他們不會(huì)壓縮步驟中刪除)
      -keepclasseswithmembernames {class_specification}    保護(hù)指定的類(lèi)和類(lèi)的成員的名稱(chēng),如果所有指定的類(lèi)成員出席(在壓縮步驟之后) 
      -printseeds {filename}    列出類(lèi)和類(lèi)的成員-keep選項(xiàng)的清單,標(biāo)準(zhǔn)輸出到給定的文件 
       
      壓縮 

      -dontshrink    不壓縮輸入的類(lèi)文件 
      -printusage {filename} 
      -whyareyoukeeping {class_specification}     
       
      優(yōu)化 

      -dontoptimize    不優(yōu)化輸入的類(lèi)文件 
      -assumenosideeffects {class_specification}    優(yōu)化時(shí)假設(shè)指定的方法,沒(méi)有任何副作用 
      -allowaccessmodification    優(yōu)化時(shí)允許訪問(wèn)并修改有修飾符的類(lèi)和類(lèi)的成員 
       
      混淆 

      -dontobfuscate    不混淆輸入的類(lèi)文件 
      -printmapping {filename} 
      -applymapping {filename}    重用映射增加混淆 
      -obfuscationdictionary {filename}    使用給定文件中的關(guān)鍵字作為要混淆方法的名稱(chēng) 
      -overloadaggressively    混淆時(shí)應(yīng)用侵入式重載 
      -useuniqueclassmembernames    確定統(tǒng)一的混淆類(lèi)的成員名稱(chēng)來(lái)增加混淆 
      -flattenpackagehierarchy {package_name}    重新包裝所有重命名的包并放在給定的單一包中 
      -repackageclass {package_name}    重新包裝所有重命名的類(lèi)文件中放在給定的單一包中 
      -dontusemixedcaseclassnames    混淆時(shí)不會(huì)產(chǎn)生形形色色的類(lèi)名 
      -keepattributes {attribute_name,...}    保護(hù)給定的可選屬性,例如LineNumberTable, LocalVariableTable, SourceFile, Deprecated, Synthetic, Signature, and InnerClasses. 
      -renamesourcefileattribute {string}    設(shè)置源文件中給定的字符串常量

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