dubbo-executable jar package using MAVEN to build Dubbo services

First, why build the executable jar package for the Dubbo service?

　　1.1 Dubbo Service Operating mode comparison

? Run with the servlet container (Tomcat, jetty, etc.)--- not available

- Cons: increased complexity (more ports for containers)

Waste memory resources, servlet runs to occupy a certain amount of memory

The self-built main () method to run the Spring container--- is not available (local debugging is free)

- Disadvantage:The advanced features provided by Dubbo itself are useless

Writing startup classes yourself can be flawed

? Use the Dubbo framework to provide the main () method to run the Spring container--- recommended

--Advantages: provided by the framework itself (Com.alibaba.dubbo.container.Main)

Graceful shutdown Possible (Shutdownhook)

　　1.2 Official Document View

Http://dubbo.io/books/dubbo-user-book/demos/service-container.html

"6.40 Container Service " section

　　so to build the executable jar package for the Dubbo service (Say a nonsense, steal laughter!!) )

Second, how to build?

　　2.1 See the Project catalogue

This is the project we're going to pack into a Dubbo service.

　　2.2 Maven Plugin

<Resources>  <Resource>    <TargetPath>${project.build.directory}/classes</TargetPath>    <Directory>Src/main/resources</Directory>    <filtering>True</filtering>    <includes>      <include>**/*.xml</include>      <include>**/*.properties</include>    </includes>  </Resource>  <!--combined with Com.alibaba.dubbo.container.Main -  <Resource>
 　　  <!--to package files under the Resources/spring directory into the classpath metainf/spring directory--    <TargetPath>${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>  <Plugins>    <!--resolves a series of lifecycle-induced conflicts in the MAVEN plug-in implemented within Eclipse -    <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>  <!--when packaging a jar file, configure the manifest file to include the jar dependency of the Lib package -  <plugin>    <groupId>Org.apache.maven.plugins</groupId>    <Artifactid>Maven-jar-plugin</Artifactid>    <Configuration>      <classesdirectory>target/classes/</classesdirectory>      <Archive>        <Manifest>          <MainClass>Com.alibaba.dubbo.container.Main</MainClass>          <!--MANIFEST when packing. MF file does not record the timestamp version -          <useuniqueversions>False</useuniqueversions>          <Addclasspath>True</Addclasspath>          <Classpathprefix>lib/</Classpathprefix>        </Manifest>        <manifestentries>          <Class-path>.</Class-path>        </manifestentries>      </Archive>    </Configuration>  </plugin>  <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>          <useuniqueversions>False</useuniqueversions>          <outputdirectory>${project.build.directory}/lib</outputdirectory>        </Configuration>      </Execution>    </executions>  </plugin></Plugins>

　　2.3 Maven Package

　　　　MVN Clean Package

　　And then you can see it in the target directory of the project.

　　

Open the Edu-service-user.jar directory and look at the structure.

　　2.4 Running the jar package:

Run Java-jar Edu-service-user.jar in the directory of the jar file

　　2.4 Points of attention:

Add "classpath:" where import introduces other XML configuration files.

Dubbo-an executable jar package that uses MAVEN to build Dubbo services