一、无依赖其他任何jar
<build> <plugins> <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.think.TestMain</mainClass> </manifest> </archive> </configuration> </plugin> </plugins> </build>
运行:mvn clean package,在target中找到打包出来的,命令后运行java -jar xxx.jar即可,但是如果程序有依赖其他包,比如程序依赖jdbc去查询db,这时候再执行就会出现找不到jdbc依赖,因为我们并没有将依赖包打进去
二、解决依赖其他包时,可执行jar的打包
1、
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.3</version> <configuration> <appendAssemblyId>false</appendAssemblyId> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> <archive> <manifest> <mainClass>com.think.TestMain</mainClass> </manifest> </archive> </configuration> <executions> <execution> <id>make-assembly</id> <phase>package</phase> <goals> <goal>assembly</goal> </goals> </execution> </executions> </plugin> </plugins> </build>
但以上方式用的比较少,因为我们依赖的jar,也会打进到我们最终生成的jar,这样不太好,假如你生成的jar要给别人使用,最好给一个纯净的。
一般用assembly会再用他另外一个功能,将我们的jar归档,打包成一个zip
2、打成一个zip包,发布项目的时候,将zip包copy到服务器上,直接unzip xxx.zip,里面包含要运行到jar以及依赖的lib,还有配置的config文件,即可直接启动服务
<build> <resources> <!-- 控制资源文件的拷贝 --> <resource> <directory>src/main/resources</directory> <targetPath>${project.build.directory}/classes</targetPath> </resource> </resources> <plugins> <!-- 设置源文件编码方式 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> <encoding>UTF-8</encoding> </configuration> </plugin> <!-- The configuration of maven-jar-plugin --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.4</version> <!-- The configuration of the plugin --> <configuration> <!-- Configuration of the archiver --> <archive> <!-- 生成的jar中,不要包含pom.xml和pom.properties这两个文件 --> <addMavenDescriptor>false</addMavenDescriptor> <!-- Manifest specific configuration --> <manifest> <!-- 是否要把第三方jar放到manifest的classpath中 --> <addClasspath>true</addClasspath> <!-- 生成的manifest中classpath的前缀,因为要把第三方jar放到lib目录下,所以classpath的前缀是lib/ --> <classpathPrefix>lib/</classpathPrefix> <!-- 应用的main class --> <mainClass>com.think.TestMain</mainClass> </manifest> </archive> <!-- 过滤掉不希望包含在jar中的文件 --> <!--<excludes>--> <!--<exclude>${project.basedir}/xml/*</exclude>--> <!--</excludes>--> </configuration> </plugin> <!-- The configuration of maven-assembly-plugin --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.4</version> <!-- The configuration of the plugin --> <configuration> <!-- Specifies the configuration file of the assembly plugin --> <descriptors> <descriptor>src/main/assembly/assembly.xml</descriptor> </descriptors> </configuration> <executions> <execution> <id>make-assembly</id> <phase>package</phase> <goals> <goal>single</goal> </goals> </execution> </executions> </plugin> </plugins> </build>
还有一个重要的文件,名字可以随便起,我上面用的是 src/main/assembly/assembly.xml
<assembly> <id>bin</id> <includeBaseDirectory>false</includeBaseDirectory> <!-- 最终打包成一个用于发布的zip文件 --> <formats> <format>zip</format> </formats> <!-- Adds dependencies to zip package under lib directory --> <dependencySets> <dependencySet> <!-- 不使用项目的artifact,第三方jar不要解压,打包进zip文件的lib目录 --> <useProjectArtifact>false</useProjectArtifact> <!--<outputDirectory>lib</outputDirectory>--> <unpack>false</unpack> </dependencySet> </dependencySets> <fileSets> <!-- 把项目相关的说明文件,打包进zip文件的根目录 --> <!--<fileSet>--> <!--<directory>${project.basedir}</directory>--> <!--<outputDirectory>/</outputDirectory>--> <!--</fileSet>--> <!-- 把项目的配置文件,打包进zip文件的config目录 --> <fileSet> <directory>${deploy.dir}/classes/</directory> <outputDirectory>/conf</outputDirectory> <includes> <include>*.xml</include> <include>*.properties</include> </includes> </fileSet> <!-- 把项目自己编译出来的jar文件,打包进zip文件的根目录 --> <fileSet> <directory>${project.build.directory}</directory> <outputDirectory></outputDirectory> <includes> <include>*.jar</include> </includes> </fileSet> </fileSets> </assembly>
最终执行命令:mvn clean package,出来的是这样的
解压zip包,我们看到我们想要的,good
3、还有一种打包方式,上面相当于把我们想要的东西打成一个zip包,全部放到一起,看着整洁好看,但有点繁琐,我们其实可以用另外一个插件来完成,不打包,即看到上图解压后的文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.test</groupId> <artifactId>myTestJar</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <name>myTestJar</name> <url>http://maven.apache.org</url> <properties> <deploy.dir>./target/</deploy.dir> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.9</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.32</version> </dependency> </dependencies> <build> <finalName>myTest</finalName> <sourceDirectory>src/main/java</sourceDirectory> <resources> <!-- 控制资源文件的拷贝 --> <resource> <directory>src/main/resources</directory> <targetPath>${project.build.directory}</targetPath> </resource> </resources> <plugins> <!-- 设置源文件编码方式 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <defaultLibBundleDir>lib</defaultLibBundleDir> <source>1.6</source> <target>1.6</target> <encoding>UTF-8</encoding> </configuration> </plugin> <!-- 打包jar文件时,配置manifest文件,加入lib包的jar依赖 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <classpathPrefix>lib/</classpathPrefix> <mainClass>com.think.TestMain</mainClass> </manifest> </archive> </configuration> </plugin> <!-- 拷贝依赖的jar包到lib目录 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <executions> <execution> <id>copy</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <!-- ${project.build.directory}是maven变量,内置的,表示target目录,如果不写,将在跟目录下创建/lib --> <outputDirectory>${project.build.directory}/lib</outputDirectory> <!-- excludeTransitive:是否不包含间接依赖包,比如我们依赖A,但是A又依赖了B,我们是否也要把B打进去 默认不打--> <excludeTransitive>true</excludeTransitive> <!-- 复制的jar文件去掉版本信息 --> <stripVersion>true</stripVersion> </configuration> </execution> </executions> </plugin> <!-- 解决资源文件的编码问题 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.3</version> <configuration> <encoding>UTF-8</encoding> </configuration> </plugin> <!-- 打包source文件为jar文件 --> <plugin> <artifactId>maven-source-plugin</artifactId> <version>2.1</version> <configuration> <attach>true</attach> <encoding>UTF-8</encoding> </configuration> <executions> <execution> <phase>compile</phase> <goals> <goal>jar</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>
这里采用的是maven-dependency-plugin插件,进行资源的copy。
4、
<build> <resources> <resource> <targetPath>${project.build.directory}/classes</targetPath> <directory>src/main/resources</directory> <filtering>true</filtering> <includes> <include>**/*.xml</include> </includes> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.0</version> <configuration> <source>1.6</source> <target>1.6</target> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <version>2.0</version> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <transformers> <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> <mainClass>com.think.TestMain</mainClass> </transformer> <!--<transformer--> <!--implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">--> <!--<resource>applicationContext.xml</resource>--> <!--</transformer>--> </transformers> <shadedArtifactAttached>true</shadedArtifactAttached> <shadedClassifierName>executable</shadedClassifierName> </configuration> </execution> </executions> </plugin> </plugins> </build>
这种方式打出来是柔和到一起,成为一个jar,
可以直接java -jar xxx.jar运行。
我们可以根据不同需要来打包,如果暴露给外面,可以采用第4种,如果是自己公司项目打包,建议2,3种,因为有时候只是改了个配置文件,不需要打包,直接把配置文件复制进去即可
时间: 2024-10-04 16:37:28