SpringBoot项目Jar包加密防止反编译详细讲解（值得珍藏）

在SpringBoot项目中，为了防止Jar包被反编译，我们可以对Jar包进行加密和解密操作。以下是一个简化的例子，展示了如何使用Java代码和SpringBoot配置来实现Jar包加密。

1. 使用maven-shade-plugin插件在构建过程中加密Jar包。

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.2.4</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <transformers>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>com.example.MainClass</mainClass>
                            </transformer>
                            <transformer implementation="com.github.jengelman.gradle.plugins.shadow.transformers.AppendingTransformer">
                                <resource>META-INF/spring.handlers</resource>
                            </transformer>
                            <transformer implementation="com.github.jengelman.gradle.plugins.shadow.transformers.AppendingTransformer">
                                <resource>META-INF/spring.schemas</resource>
                            </transformer>
                        </transformers>
                        <filters>
                            <filter>
                                <artifact>*:*</artifact>
                                <excludes>
                                    <exclude>META-INF/*.SF</exclude>
                                    <exclude>META-INF/*.DSA</exclude>
                                    <exclude>META-INF/*.RSA</exclude>
                                </excludes>
                            </filter>
                        </filters>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

2. 在SpringBoot应用启动时解密Jar包。

import org.springframework.boot.SpringApplication;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.core.env.ConfigurableEnvironment