Maven打包可执行Jar的集中方法

来源:互联网 发布:漏洞提交平台 知乎 编辑:程序博客网 时间:2024/05/18 20:50

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
0 0
原创粉丝点击