maven-常用plugin备忘

tomcat

<plugin>   <groupId>org.apache.tomcat.maven</groupId>   <artifactId>tomcat7-maven-plugin</artifactId>   <version>2.1</version>   <configuration>      <path>/device-manager-provider</path>      <uriEncoding>utf-8</uriEncoding>      <port>8001</port>      <server>tomcat</server>      <systemProperties>         <systemProperty>            <name>JAVA_OPTS</name>            <value>-Xms256m -Xmx768m -XX:+UseConcMarkSweepGC               -XX:MaxPermSize=256m -XX:NewRatio=6               -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled            </value>         </systemProperty>      </systemProperties>   </configuration></plugin>

dependency

maven-dependency-plugin是处理与依赖相关的插件。它有很多可用的goal，大部分是和依赖构建、分析和解决相关的goal，这部分goal可以直接用maven的命令操作，例如：mvn dependency:tree、mvn dependency:analyze；这类操作在平时的maven应用中很少会用到。这里主要介绍除此之外的、用得最多的几个操作：copy, copy-dependencies和它们对应的unpack, unpack-dependencies

<plugin>   <artifactId>maven-dependency-plugin</artifactId>   <executions>      <execution>         <id>unpack</id>         <phase>package</phase>  <!--在打包的的生命周期中，绑定unpack goal-->         <goals>            <goal>unpack</goal>  <!--goal 为解压-->         </goals>         <configuration>            <artifactItems>               <artifactItem>   <!--指定解压的jar包-->                  <groupId>com.alibaba</groupId>                  <artifactId>dubbo</artifactId>                  <version>${project.parent.version}</version>                   <!--把解压出来的包中的指定文件输出到指定目录，${project.build.directory}默认为target -->                  <outputDirectory>${project.build.directory}/dubbo</outputDirectory                   <!--把解压出来的包中的指定文件输出到指定目录-->                    <includes>META-INF/assembly/**</includes>               </artifactItem>            </artifactItems>         </configuration>      </execution>   </executions></plugin>

<build>      <plugins>          <plugin>              <groupId>org.apache.maven.plugins</groupId>              <artifactId>maven-dependency-plugin</artifactId>              <version>2.8</version>              <executions>                  <execution>                      <phase>package</phase>  <!--在打包的生命周期中完成copy的goal-->                    <goals>                          <goal>copy</goal>                      </goals>                      <configuration>                          <artifactItems>  <!--要copy的内容-->                            <artifactItem>                                  <groupId>junit</groupId>                                  <artifactId>junit</artifactId>                                  <version>4.11</version>                              </artifactItem>                              <artifactItem>                                  <groupId>org.slf4j</groupId>                                  <artifactId>slf4j-log4j12</artifactId>                                  <version>1.7.7</version>                                  <outputDirectory>lib2</outputDirectory>                              </artifactItem>                          </artifactItems>                          <outputDirectory>lib</outputDirectory>                      </configuration>                </execution>              </executions>          </plugin>      </plugins>  </build>   <plugin>      <groupId>org.apache.maven.plugins</groupId>      <artifactId>maven-dependency-plugin</artifactId>      <version>2.8</version>      <executions>          <execution>              <!--这里没有指定任何配置，所有的参数都用默认值，               则当前工程的所有依赖（直接、间接的）都会被拷到target/dependency目录下>            <phase>package</phase>              <goals>                  <goal>copy-dependencies</goal>              </goals>          </execution>      </executions>  </plugin> <!--要排除所有camel的依赖--><configuration>     <excludeGroupIds>org.apache.camel</excludeGroupIds>  </configuration>  <!--要排除除camel-spring外的所有其他依赖--> <configuration>      <includeArtifactIds>camel-spring</includeArtifactIds>  </configuration>

assembly打包

assembly-plugin 打包，把需要打包的jar包，资源都复制到目标文件中，jar包之间不会合并

<plugin>     <artifactId>maven-assembly-plugin</artifactId>     <!--assembly.xml配置文件路径-->     <configuration>        <descriptor>src/main/assembly/assembly.xml</descriptor>     </configuration>     <executions>       <execution>       <id>make-assembly</id>       <phase>package</phase>       <goals><goal>single</goal></goals>     </execution>   </executions></plugin>
assembly.xml
<assembly><id>assembly</id><formats><format>tar.gz</format></formats><includeBaseDirectory>true</includeBaseDirectory><fileSets><fileSet><!--把target/dubbo/META-INF/assembly/bin  输出到bin 目录--><directory>${project.build.directory}/dubbo/META-INF/assembly/bin</directory><outputDirectory>bin</outputDirectory><fileMode>0755</fileMode></fileSet><fileSet><!--把src/main/assembly/conf 输出到conf 目录--><directory>src/main/assembly/conf</directory><outputDirectory>conf</outputDirectory><fileMode>0644</fileMode></fileSet></fileSets><!--把依赖包输出到lib目录--><dependencySets><dependencySet><outputDirectory>lib</outputDirectory></dependencySet></dependencySets></assembly>
发布包到仓库 distributionManagement 
pom:
<distributionManagement>        <repository>            <id>xxx-releases</id>            <name>Nexus Release Repository</name>            <url>http://192.168.41.25:8081/nexus/content/repositories/releases</url>        </repository>        <snapshotRepository>            <id>xxx-snapshots</id>            <name>Nexus Snapshot Repository</name>            <url>http://192.168.41.25:8081/nexus/content/repositories/snapshots</url>        </snapshotRepository>    </distributionManagement>

maven settings.xml
   <server>      <id>xxx-releases</id>      <username>deployment</username>      <password>xxx</password>    </server>     <server>      <id>xxx-snapshots</id>      <username>deployment</username>      <password>xxx</password>    </server>   </servers>
maven-shade-plugin 打包
shade-plugin把所有依赖的包，文件都整合到一个jar包中
<plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-shade-plugin</artifactId><version>1.4</version><executions><execution><phase>package</phase><goals><goal>shade</goal></goals><configuration><createSourcesJar>true</createSourcesJar><promoteTransitiveDependencies>true</promoteTransitiveDependencies><artifactSet><!--jar中包含的lib--><includes><include>com.alibaba:hessian-lite</include><include>com.alibaba:dubbo-common</include><include>com.alibaba:dubbo-remoting-api</include><include>com.alibaba:dubbo-remoting-netty</include><include>com.alibaba:dubbo-remoting-mina</include></includes><!--jar中排除的lib--><excludes>  <exclude>junit:junit</exclude>  <exclude>jmock:*</exclude>  <exclude>*:xml-apis</exclude>  <exclude>org.apache.maven:lib:tests</exclude>  <exclude>log4j:log4j:jar:</exclude></excludes></artifactSet><transformers><!-- 是否生成含有main函数的可执行jar <transformers>   <transformer implementation = "org.apache.maven.plugins.shade.resource.MainifestResourceTransformer">   <mainClass>mainclass</mainClass>   </transformer>  --><!--加入资源文件--><transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"><resource>META-INF/dubbo/internal/com.alibaba.dubbo.common.compiler.Compiler</resource></transformer><transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"><resource>META-INF/dubbo/internal/com.alibaba.dubbo.common.extension.ExtensionFactory</resource></transformer></transformers></configuration></execution></executions></plugin>