Pan*_*arn 3 pom.xml maven spring-boot
您好,我需要知道如何通过 mavan install 一次性构建 war 和 jar 文件
我需要使用war文件在google应用程序引擎上进行部署,并使用jar文件通过命令在jenkin上执行(java -jar ....)
这是 pom.xml 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>org.demo</groupId>
<artifactId>gae-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.0.BUILD-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-legacy</artifactId>
<version>1.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>net.kindleit</groupId>
<artifactId>gae-runtime</artifactId>
<version>${gae.version}</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-labs</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<start-class>demo.Application</start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.7</java.version>
<m2eclipse.wtp.contextRoot>/</m2eclipse.wtp.contextRoot>
<gae.version>1.8.8</gae.version>
<gae.home>${settings.localRepository}/com/google/appengine/appengine-java-sdk/${gae.version}/appengine-java-sdk-${gae.version}</gae.home>
<gae.application.version>test</gae.application.version>
</properties>
<build>
<plugins>
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
<executions>
<execution>
<phase>deploy</phase>
<goals>
<goal>deploy-file</goal>
</goals>
<configuration>
<packaging>jar</packaging>
<generatePom>true</generatePom>
<url>${project.distributionManagement.repository.url}</url>
<artifactId>${project.artifactId}</artifactId>
<groupId>${project.groupId}</groupId>
<version>${project.version}</version>
<file>${project.build.directory}/${project.artifactId}-${project.version}.jar</file>
</configuration>
</execution>
</executions>
</plugin>
...
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这个 pom.xml 可以创建 war 和 jar 文件但是如果我尝试通过这个命令执行 jar 文件 java -jar ...它显示错误
Exception in thread "main" java.lang.NoClassDefFoundError: org.springframework/boot/SpringApplication
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问题是 Spring Boot 的 Maven 插件不参与 jar 的创建,因此它没有被设置为可执行文件。
当 Spring Boot 重新打包一个 war 文件时,它就可以执行了。这意味着,与其尝试构建 jar 和 war,您只需使用java -jar.
@andywilkenson 的答案绝对是我这样做的首选方法,但无论如何,这里是如何做到这一点:D
您需要决定哪个可交付成果是“主要”工件。我建议使用 jar,因为使用 war 文件作为依赖项没有任何意义(使用 SpringBoot 可执行 jar 作为依赖项也没有任何意义)。
脚步
最后结果
<?xml version="1.0" encoding="UTF-8"?>
<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">
<!--snip-->
<packaging>jar</packaging>
<!--snip-->
<build>
<plugins>
<!--snip-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<executions>
<execution>
<id>war</id>
<goals>
<goal>war</goal>
</goals>
<!--No Explicit phase needed-->
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<classifier>war</classifier>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<!--
Do not declare an execution for jar, since it is the main artifact.
Doing so makes maven think you are trying to add another
supplemental file.
-->
</plugin>
</plugins>
</build>
<!--snip-->
</project>
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完毕。
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