SpringBoot对Jar包进行加密的示例代码

# proguard-rules.pro

# Keep entry points in the application
-keep class com.example.Application {
    public static void main(java.lang.String[]);
}

# Keep Android activities
-keep class com.example.android.** { *; }

# Keep all classes in a package
-keep class com.example.model.** { *; }

# Keep all public and protected methods in a class (including fields)
-keepclassmembers class com.example.model.MyClass {
    public protected *;
}

import com.sermo.JCryptor.AES;
import com.sermo.JCryptor.CryptorException;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;

public class JarEncryptor {

    private static final String ENCRYPTION_KEY = "MyEncryptionKey123"; // 替换为自己的密钥

    public static void encryptJar(String inputJarPath, String outputJarPath) {
        try {
            byte[] inputBytes = Files.readAllBytes(Path.of(inputJarPath));
            byte[] encryptedBytes = AES.encrypt(inputBytes, ENCRYPTION_KEY);

            Files.write(Path.of(outputJarPath), encryptedBytes, StandardOpenOption.CREATE);
            System.out.println("Jar file encrypted successfully!");
        } catch (IOException | CryptorException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        encryptJar("original.jar", "encrypted.jar");
    }
}

import com.sermo.JCryptor.AES;
import com.sermo.JCryptor.CryptorException;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;

public class JarDecryptor {

    private static final String ENCRYPTION_KEY = "MyEncryptionKey123"; // 替换为加密时使用的密钥

    public static void decryptJar(String inputJarPath, String outputJarPath) {
        try {
            byte[] encryptedBytes = Files.readAllBytes(Path.of(inputJarPath));
            byte[] decryptedBytes = AES.decrypt(encryptedBytes, ENCRYPTION_KEY);

            Files.write(Path.of(outputJarPath), decryptedBytes, StandardOpenOption.CREATE);
            System.out.println("Jar file decrypted successfully!");
        } catch (IOException | CryptorException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        decryptJar("encrypted.jar", "decrypted.jar");
        // 然后执行解密后的Jar文件
        // java -jar decrypted.jar
    }
}