打jar包执行main函数依赖问题

一些系统服务是经过java -jar xx.jar xx.xxx.Aaa param1 param2来启动服务,问题就接踵而来了,
xx.jar的jar包依赖怎么解决?java

解决方式一:
一、经过配置maven依赖,将全部依赖打成一个jar包;
该方式存在问题,若是某些依赖须要经过<scope>system</scope><systemPath>${project.basedir}/lib/neo4j-server-1.9.2-static-web.jar</systemPath>解决,
将全部依赖打成一个jar包就会有问题linux

<dependency>
    <groupId>org.neo4j.app</groupId>
    <artifactId>neo4j-server-web</artifactId>
    <version>1.9.2</version>
    
    <scope>system</scope>
    <systemPath>${project.basedir}/lib/neo4j-server-1.9.2-static-web.jar</systemPath>
</dependency>

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <descriptorRefs>
              <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
          <archive>
            <manifest>
                <mainClass>com.sniper.neo4j.util.Neo4jServerUtil</mainClass>
            </manifest>
          </archive>
      </configuration>
      <executions>
        <execution>
              <id>make-assembly</id>
              <phase>package</phase>
              <goals>
                <goal>single</goal>
              </goals>
           </execution>
      </executions>
</plugin>

二、经过maven插件打包的时候设置classpath路径,将依赖的jar包打成路径放到MANIFEST.MF中,可是system方式的依赖一样存在问题web

<plugin>  
    <groupId>org.apache.maven.plugins</groupId>  
    <artifactId>maven-jar-plugin</artifactId>  
    <version>2.4</version>  
    <configuration>  
        <archive>  
            <manifest>  
                <addClasspath>true</addClasspath>  
                <classpathPrefix>lib/</classpathPrefix>  
                <mainClass>com.sniper.neo4j.util.Neo4jServerUtil</mainClass>  
            </manifest>  
        </archive>  
    </configuration>  
</plugin>

 

三、经过java -cp .;lib/* xx.xx.Aaa的方式运行就能够解决
只要将打成的jar包、依赖的jar包都拷贝到lib文件夹下就能够apache

注意,windows下的分割符是分号;,linux下的分隔符是冒号:windows

<!-- 打包时将依赖jar包拷贝到指定目录 -->
<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-dependency-plugin</artifactId>
	<version>2.8</version>
	<executions>
		<execution>
			<id>copy-dependencies</id>
			<phase>package</phase>
			<goals>
				<goal>copy-dependencies</goal>
			</goals>
			<configuration>
				<!-- 若是不设置路径,默认将依赖jar包导出到:target/dependency,可自定义路径,好比:target/export -->
				<!--  
				<outputDirectory>target</outputDirectory>
				-->
				<excludeTransitive>false</excludeTransitive>
				<stripVersion>false</stripVersion>
			</configuration>
		</execution>
	</executions>
</plugin>
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