使用maven将项目打成jar包

<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/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<parent>
		<groupId>wusc.edu.common</groupId>
		<artifactId>edu-common-parent</artifactId>
		<version>1.0-SNAPSHOT</version>
		<relativePath>../edu-common-parent</relativePath>
	</parent>

	<groupId>wusc.edu.service</groupId>
	<artifactId>edu-service-user</artifactId>
	<version>${edu-service-user.version}</version>
	<packaging>jar</packaging>

	<name>edu-service-user</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<log4j.leve>debug</log4j.leve>
		<log4j.ale>debug</log4j.ale>
	</properties>

	<build>
		<finalName>edu-service-user</finalName>

		<resources>
		        <!-- 把src/main/resources下的包括xml和properties的文件复制到target/classes下 -->
			<resource>
				<targetPath>${project.build.directory}/classes</targetPath>
				<directory>src/main/resources</directory>
				<filtering>true</filtering>
				<includes>
					<include>**/*.xml</include>
					<include>**/*.properties</include>
				</includes>
			</resource>

			<!-- 把src/main/resources/spring下的spring-context.xml
			文件复制到target/classes/META-INF/spring下 -->
			<resource>
				<targetPath>${project.build.directory}/classes/META-INF/spring</targetPath>
				<directory>src/main/resources/spring</directory>
				<filtering>true</filtering>
				<includes>
					<include>spring-context.xml</include>
				</includes>
			</resource>
		</resources>

		<pluginManagement>
			 <!--这个插件没看懂  似乎和eclipse与mavan生命周期冲突相关  -->
			<plugins>
				<plugin>
					<groupId>org.eclipse.m2e</groupId>
					<artifactId>lifecycle-mapping</artifactId>
					<version>1.0.0</version>
					<configuration>
						<lifecycleMappingMetadata>
							<pluginExecutions>
								<pluginExecution>
									<pluginExecutionFilter>
										<groupId>org.apache.maven.plugins</groupId>
										<artifactId>maven-dependency-plugin</artifactId>
										<versionRange>[2.0,)</versionRange>
										<goals>
											<goal>copy-dependencies</goal>
										</goals>
									</pluginExecutionFilter>
									<action>
										<ignore />
									</action>
								</pluginExecution>
							</pluginExecutions>
						</lifecycleMappingMetadata>
					</configuration>
				</plugin>
			</plugins>
		</pluginManagement>
		<plugins>
			 <!--打jar包范围是rarget/classes  启动类是 com.alibaba.dubbo.container.Main  -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-jar-plugin</artifactId>

				<configuration>
					<classesDirectory>target/classes</classesDirectory>
					<archive>
						<manifest>
							<!-- 不记录版本号 -->
							<useUniqueVersions>false</useUniqueVersions>

							<addClasspath>true</addClasspath>
							<classpathPrefix>lib/</classpathPrefix>
							<mainClass>com.alibaba.dubbo.container.Main</mainClass>
						</manifest>
						<manifestEntries>
							<Class-Paht>.</Class-Paht>
						</manifestEntries>
					</archive>
				</configuration>
			</plugin>

			<!--打jar包 项目本身的依赖包放在lib文件夹下
			(lib与生成的jar在同一目录)  -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-dependency-plugin</artifactId>

				<executions>
					<execution>
						<id>copy-dependencies</id>
						<phase>package</phase>
						<goals>
							<goal>copy-dependencies</goal>
						</goals>
						<configuration>
							<type>jar</type>
							<includeTypes>jar</includeTypes>
							<useUninqeVersions>false</useUninqeVersions>
							<outputDirectory>
								${project.build.directory}/lib
							</outputDirectory>
						</configuration>
					</execution>

				</executions>
			</plugin>
		</plugins>

	</build>

	<dependencies>

		<!-- dubbo 需要的jar start -->
		<dependency>
			<groupId>org.jboss.netty</groupId>
			<artifactId>netty</artifactId>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>dubbo</artifactId>
			<exclusions>
				<exclusion>
					<groupId>org.springframework</groupId>
					<artifactId>spring</artifactId>
				</exclusion>
			</exclusions>
		</dependency>

	</dependencies>

</project>

</pre>如果这个项目本身还依赖另一个项目A,那么我们就得先把项目A打成jar包使用上面的pom,然后在myeclipse中右键,run as maven install最后结果<p>如下图</p><p>lib下存放着edu-service-user运行所需要的jar</p><p>另外,我们之间在命令行下,使用java -jar edu-service-user.jar 即可调用</p><p>com.alibaba.dubbo.container.Main这个类</p><p><img src="http://img.blog.csdn.net/20160502222634711?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

第二种方式

<pre name="code" class="html"><plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>1.2.1</version>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            <configuration>
                <transformers>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                        <mainClass>com.juvenxu.mvnbook.helloworld.HelloWorld</mainClass>
                    </transformer>
                </transformers>
            </configuration>
        </execution>
    </executions>
</plugin>  

运行mvn install 后 会在target下生成两个jar包

original-xxx-0.0.1-snapshot.jar 这里面只有我们自己写的java代码的class文件

xxx-0.0.1-snapshot.jar 这里面我们依赖的jar包(会抽出里面的class文件)会和我们的代码放在一块

如下:

toyprogram里面放的是我们自己写的java代码的class文件

spring就放在org里面

还有一种方式

<plugin>
            <artifactId>maven-assembly-plugin</artifactId>
            <configuration>
                <appendAssemblyId>false</appendAssemblyId>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>
                <archive>
                    <manifest>
                        <mainClass>abc.ef.sdf</mainClass>
                    </manifest>
                </archive>
            </configuration>
            <executions>
                <execution>
                    <id>make-assembly</id>
                    <phase>package</phase>
                    <goals>
                        <goal>assembly</goal>
                    </goals>
                </execution>
            </executions>
</plugin>  

然后在pom文件上右键 run as->maven assembly:assembly

之后在pom的同级目录里会生成你所需要的jar

不知道怎么回事,我的myeclipse里没有maven assembly:assembly

不过可以这样run build... 然后

参考资料

http://www.blogjava.net/qileilove/articles/410887.html

http://www.cnblogs.com/justinzhang/p/4983633.html