建立maven專案，利用maven專案生成可執行jar，需要使用maven-assembly-plugin外掛來完成，pom.xml檔案配置如下

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
 
>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.test</groupId>
    <artifactId>demo</artifactId>
    <version>1.0</version>
    <packaging>jar</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding
 
>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.5.5</version>
                <configuration
 
>
                    <finalName>helloworld</finalName>
                    <archive>
                        <manifest>
                    <mainClass>com.test.HelloWorld</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>
</project>

按如上配置完成後，將專案打包成war，再cmd命令中使用如下命令執行即可

java -Xms512m -Xmx1024m -jar D:/jar/helloworld-jar-with-dependencies.jar

如果有引數可以再後面追加你的引數，筆者是將jar包上傳到了linux伺服器，並使用shell指令碼的方式來執行，shell指令碼如下

#!/bin/bash
start_time=`date +%s`
java -Xms512m -Xmx1024m -jar /root/jar/helloworld-jar-with-dependencies.jar
end_time=`date +%s`
elapse_time=$((${end_time}-${start_time}))
echo -e "\n exec jar takes ${elapse_time} seconds\n"

執行如下sh命令執行shell指令碼，執行結果如下

Hello World...

 exec jar takes 0 seconds