将Java项目打包为可执行JAR 文件的四种方法

<build>
    <plugins>
        <!-- 编译插件 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        
        <!-- 创建可执行 JAR 的插件 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>3.2.0</version>
            <configuration>
                <archive>
                    <manifest>
                        <addClasspath>true</addClasspath>
                        <mainClass>com.example.demo.DesktopFileSearch</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>
        
        <!-- 包含依赖的插件（可选） -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly-plugin</artifactId>
            <version>3.3.0</version>
            <configuration>
                <archive>
                    <manifest>
                        <mainClass>com.example.demo.DesktopFileSearch</mainClass>
                    </manifest>
                </archive>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>
            </configuration>
            <executions>
                <execution>
                    <id>make-assembly</id>
                    <phase>package</phase>
                    <goals>
                        <goal>single</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

mvn clean package

plugins {
    id 'java'
    id 'application'
}

application {
    mainClassName = 'com.example.demo.DesktopFileSearch'
}

jar {
    manifest {
        attributes 'Main-Class': 'com.example.demo.DesktopFileSearch'
    }
    
    // 包含所有依赖（可选）
    from {
        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
    }
}

gradle clean build

javac -d target/classes src/main/java/com/example/demo/*.java

Manifest-Version: 1.0
Main-Class: com.example.demo.DesktopFileSearch
Class-Path: .

jar cfm target/your-app.jar META-INF/MANIFEST.MF -C target/classes .

java -jar your-app.jar

jarsigner -keystore mykeystore.jks -storepass password -keypass password your-app.jar mykey