为依赖于其他项目的Spring Boot应用程序创建胖jar时发生异常 [英] Exception while creating a fat jar for spring boot application which depends on other project

问题描述

这是我上一个问题的跟进 将gradle多项目转换为springboot fat jar应用程序

This is follow up of my previous question Convert gradle multi project to springboot fat jar application

我有一个http servlet应用程序，它是一个多项目gradle版本，其中我的项目是一个包含gradle的HttpServlet项目，它依赖于其他两个gradle java项目.我将所有3个jar都部署在了tomcat webapps/Web-INF/lib目录中并运行它.

I had a http servlet application which was a multi project gradle build, where my project was a contain gradle HttpServlet project and it depends on the other two gradle java projects. I deployed all the 3 jars in the tomcat webapps/Web-INF/lib directory and run it.

现在我必须将我的应用程序转换为Spring Boot应用程序，而不是3个单独的jars，我必须创建一个应运行它的fat jars.

Now there is a requirement that I have to convert my application as a spring boot application and instead of 3 separate jars I have to create a fat jar which I should run it.

我的代码安排如下

    Rootrepository
      - settings.gradle 
     - build.gradle
      - Springboot project
         - build.gradle
         -src….
    - OtherGardleProject1
        - Src…
    - OtherGardleProject2
        - Src…

Please see `root project’s build.gradle`

version = '1.0.0'
group = ‘myproj’
apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'groovy'
apply plugin: 'eclipse'

subprojects {
    repositories {
        mavenCentral()
            }
    }

    apply plugin: 'java'

    sourceCompatibility = 1.8

    compileJava

    jar {
     from sourceSets.main.allSource
    }
}

subprojects.each { subproject ->
  evaluationDependsOn(subproject.path)
}


task mmJar(type: Jar, dependsOn: subprojects.jar) {
      manifest {
        attributes 'Main-Class': 'org.springframework.boot.loader.JarLauncher'
        attributes 'Start-Class': ‘mypackage.springboot.Application'
    }
  subprojects.each { subproject ->
    from subproject.configurations.archives.artifacts.files.collect {
      zipTree(it)
    }
  }
}


dependencies {
        compile 'junit:junit:4.12'
        compile 'org.slf4j:slf4j-api:1.7.7'
}

请参阅 springboot项目的build.gradle

buildscript {
    ext {
        spring_plugin_version = '2.1.1.RELEASE'
    }

    repositories {
        mavenCentral()
    }

    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:$spring_plugin_version")
        classpath "io.spring.gradle:dependency-management-plugin:1.0.3.RELEASE"

    }
}

apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'



dependencies {
    implementation('org.springframework.boot:spring-boot-starter-quartz')
    implementation('org.springframework.boot:spring-boot-starter-web')

    compile project(‘:otherproject1’)


    compile group: 'com.googlecode.json-simple', name: 'json-simple', version: '1.1'

    compile group: 'commons-io', name: 'commons-io', version: '2.4'
    compile('org.springframework:spring-webmvc')

    runtimeOnly('org.springframework.boot:spring-boot-devtools')
    compileOnly('org.projectlombok:lombok:1.18.8')
    annotationProcessor('org.projectlombok:lombok:1.18.8')

    testCompile('org.springframework.boot:spring-boot-starter-test')
}

然后，我运行了 gradle clean assemble mmJar ，它按预期方式创建了一个胖子罐.

Then I ran gradle clean assemble mmJar and it created a fat jar as expected.

但是当我尝试运行 java -jar build/libs/myproj-1.0.0.jar

Exception in thread "main" java.lang.IllegalStateException: Failed to get nested archive for entry BOOT-INF/lib/JavaEWAH-1.1.6.jar
    at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchive(JarFileArchive.java:108)
    at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchives(JarFileArchive.java:86)
    at org.springframework.boot.loader.ExecutableArchiveLauncher.getClassPathArchives(ExecutableArchiveLauncher.java:70)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:49)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: java.io.IOException: Unable to open nested jar file 'BOOT-INF/lib/JavaEWAH-1.1.6.jar'
    at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:256)
    at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:241)
    at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchive(JarFileArchive.java:103)
    ... 4 more
Caused by: java.lang.IllegalStateException: Unable to open nested entry 'BOOT-INF/lib/JavaEWAH-1.1.6.jar'. It has been compressed and nested jar files must be stored without compression. Please check the mechanism used to create your executable jar file
    at org.springframework.boot.loader.jar.JarFile.createJarFileFromFileEntry(JarFile.java:284)
    at org.springframework.boot.loader.jar.JarFile.createJarFileFromEntry(JarFile.java:264)
    at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:252)
    ... 6 more

有人可以建议我在做什么错吗?

Can someone please suggest what am I doing wrong?

推荐答案

正如@ M.Deinum和我在链接文章中所建议的那样，只需让spring boot gradle插件完成这项工作即可.在根文件夹中，保存 settings.gradle 文件，然后删除 build.gradle .运行

As suggested by @M.Deinum and me in the linked post, just let spring boot gradle plugin do the the job. In your root folder keep the settings.gradle file and remove the build.gradle. Run

gradle clean build

Rootrepository 文件夹中的

.Gradle将构建 settings.gradle 中包含的项目，并在 Springboot project/build/libs 文件夹

in the Rootrepository folder. Gradle will build the projects included in settings.gradle and create the fat jar in the Springboot project/build/libs folder

这篇关于为依赖于其他项目的Spring Boot应用程序创建胖jar时发生异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！