【MANIFEST.MF】 文件到底是个啥？

1  Executable JAR files

2 Define a main class in your JAR's MANIFEST.MF file that defines the executable class. (MANIFEST.MF is the file that Maven generates when packaging your application.)

3 Find all of the libraries on which your project depends.

4 Include those libraries in your MANIFEST.MF file so that your application classes can find them.

MANIFEST.MF is the file that Maven generates when packaging your application.

 

举例：

 MANIFEST.MF

Manifest-Version: 1.0

Premain-Class: com.geekcap.openapm.jvm.agent.Agent

Can-Redefine-Classes: true

Can-Retransform-Classes: true

Can-Set-Native-Method-Prefix: true

 

    org.apache.maven.plugins

    maven-jar-plugin

    

        

            

              src/main/resources/META-INF/MANIFEST.MF

            

            

                true

                lib/

                

                  com.geekcap.openapm.ui.PerformanceAnalyzer

                

            

        

    

 

This is an interesting example because it both defines a Premain-Class that allows the JAR file to work as a Java agent and has a mainClass that allows it to run as an executable JAR file. In this particular example, I've used OpenAPM (a code tracing tool that I built) to define code tracing that will be recorded by the Java agent and a user interface, which will facilitate analysis of recorded traces. In short, the example shows the power of combining an explicit manifest file with dynamic modifications.

 

5 springboot 的Manifest

Manifest-Version: 1.0

Implementation-Title: myproject

Implementation-Version: 0.0.1-SNAPSHOT

Built-By: jenkins

Implementation-Vendor-Id: com.myproject

Spring-Boot-Version: 2.0.6.RELEASE

Main-Class: org.springframework.boot.loader.JarLauncher

Start-Class: com.myproject.VApplication

Spring-Boot-Classes: BOOT-INF/classes/

Spring-Boot-Lib: BOOT-INF/lib/

Created-By: Apache Maven 3.5.2

Build-Jdk: 1.8.0_151

Implementation-URL: https://projects.spring.io/spring-boot/#/spring-bo

ot-starter-parent/myproject

 

6 依赖树

mvn dependency:tree

 

7 环境选择

    

        

            net.fpic

            tomcat-deployer-plugin

            1.0-SNAPSHOT

            

                

                    pos

                    install

                    

                        deploy

                    

                    

                        ${deploymentManagerRestHost}

                        ${deploymentManagerRestPort}

                        ${deploymentManagerRestUsername}

                        ${deploymentManagerRestPassword}

                        

                            address/target/addressservice.war

                        

                    

                

            

        

    

 

    

        dev

        

            10.50.50.52

            58090

            myusername

            mypassword

        

    

    

        qa

        

            10.50.50.50

            58090

            myotherusername

            myotherpassword

        

    

mvn -Pdev clean install

 

8 自定义maven插件：

https://www.ibm.com/developerworks/java/library/j-5things13/index.html?ca=drs-