java代码混淆

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如果你不想让别人知道你太多的实现细节，那么可以通过proguard对自己的代码进行混淆。jdk版本支持1.7，不支持jdk1.8.
下面是pom.xml中响应的配置，您在http://mvnrepository.com/中是找不到net.sf.proguard4.8的版本的，告诉大家一个地址：proguard48jar，这个地址不经可以下载proguard-4.8.jar，还可以下载其他的文件。也是偶然的机会，我才发现了此地址。

<build>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-resources-plugin</artifactId>            </plugin>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-source-plugin</artifactId>                <executions>                    <execution>                        <phase>compile</phase>                        <goals>                            <goal>jar</goal>                        </goals>                    </execution>                </executions>            </plugin>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <configuration>                    <encoding>UTF-8</encoding>                    <source>${java.compile.version}</source>                    <target>${java.compile.version}</target>                </configuration>            </plugin>            <plugin>                <groupId>com.pyx4me</groupId>                <artifactId>proguard-maven-plugin</artifactId>                <executions>                    <execution>                        <phase>package</phase>                        <goals>                            <goal>proguard</goal>                        </goals>                    </execution>                </executions>                <configuration>                    <obfuscate>true</obfuscate>                    <proguardInclude>${basedir}/proguard.conf</proguardInclude>                    <libs>                        <lib>D:/Program Files/Java/jre7/lib/rt.jar</lib>                    </libs>                    <addMavenDescriptor>false</addMavenDescriptor>                </configuration>                <dependencies>                    <dependency>                        <groupId>net.sf.proguard</groupId>                        <artifactId>proguard</artifactId>                        <version>4.8</version>                        <scope>runtime</scope>                    </dependency>                </dependencies>            </plugin>        </plugins>    </build>

注意下方的目录结构，在工程的根目录添加proguard.conf文件，这个文件就是混淆的配置信息

下面是proguard.conf的内容信息：

 #忽略警告信息 ignorewarnings#不做 shrink -dontshrink#指定不去忽略包可见的库类的成员-dontskipnonpubliclibraryclassmembers#  通过指定数量的优化能执行-optimizationpasses 3#      指定不去忽略非公共的库类-dontskipnonpubliclibraryclasses#      输出生成信息-verbose#混淆时应用侵入式重载 -overloadaggressively#优化时允许访问并修改有修饰符的类和类的成员-allowaccessmodification#确定统一的混淆类的成员名称来增加混淆-useuniqueclassmembernames#这里添加你不需要混淆的类 # --------- 保护类中的所有方法名 ------------ -keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,LocalVariable*Table,*Annotation*,Synthetic,EnclosingMethod-keepclasseswithmembers public class * {    public static void main(java.lang.String[]);}-keepclassmembers enum  * {    public static **[] values();    public static ** valueOf(java.lang.String);}

执行mvn install命令，执行后的日志

 [proguard]   Number of removed local variables:           3 [proguard]   Number of removed exception blocks:          0 [proguard]   Number of optimized local variable frames:   0 [proguard] Obfuscating... [proguard] Printing mapping to [F:\ccbwork\dzmsoft-framework-base\target\proguard_map.txt]... [proguard] Preverifying... [proguard] Writing output... [proguard] Preparing output jar [F:\ccbwork\dzmsoft-framework-base\target\com.dzmsoft.framework.base-2.0.1.jar] [proguard]   Copying resources from program jar [F:\ccbwork\dzmsoft-framework-base\target\com.dzmsoft.framework.base-2.0.1_proguard_base.jar] (filtered)[INFO] [INFO] --- maven-install-plugin:2.4:install (default-install) @ com.dzmsoft.framework.base ---[INFO] Installing F:\ccbwork\dzmsoft-framework-base\target\com.dzmsoft.framework.base-2.0.1.jar to D:\Program Files (x86)\apache-maven-3.1.1\repository\com\dzmsoft\com.dzmsoft.framework.base\2.0.1\com.dzmsoft.framework.base-2.0.1.jar[INFO] Installing F:\ccbwork\dzmsoft-framework-base\pom.xml to D:\Program Files (x86)\apache-maven-3.1.1\repository\com\dzmsoft\com.dzmsoft.framework.base\2.0.1\com.dzmsoft.framework.base-2.0.1.pom[INFO] Installing F:\ccbwork\dzmsoft-framework-base\target\com.dzmsoft.framework.base-2.0.1-sources.jar to D:\Program Files (x86)\apache-maven-3.1.1\repository\com\dzmsoft\com.dzmsoft.framework.base\2.0.1\com.dzmsoft.framework.base-2.0.1-sources.jar[INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS

通过jd-gui工具查看，混淆后的结果如下图所示，是不是很爽，不过这么混淆工具类，自己估计也会受不了，下一步就需要调优配置，既达到隐藏细节的作用，又还能方便使用。

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