Gradle:使用Spring Boot依赖项构建“胖罐" [英] Gradle: Build 'fat jar' with Spring Boot Dependencies

问题描述

我正在使用Gradle将非常简单的spring boot应用程序(99％静态内容)构建并打包到带有嵌入式tomcat的jar中.

I am using Gradle to build and package a very simple spring boot application (99% static content) into a jar with embedded tomcat.

我尝试创建该jar，起初结果是86k，但没有启动，因为它缺少一些Spring引导类.我得出的结论是，我制作的这个jar不包含应用程序的任何依赖项，并且由于我确实想要一个完全独立的jar，因此我应该做更多的研究.

I tried creating said jar, at first the result was 86k and did not launch, because it was missing some Spring boot classes. I concluded this jar I made contained none of the application's dependencies, and since I did want a completely self-contained jar, I should do more research.

这是当我发现将from {configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }部分添加到'jar'的建议时，导致它引入所有依赖项的建议. (我希望).我熟悉三元运算符的概念，可以在这里看到它的作用.

This is when I discovered the advice to add the from {configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } section to the 'jar' which causes it to pull in all of the dependencies. (I hope). I'm familiar with the idea of the ternary operator and I can see what it's trying to do here.

不幸的是，它仍然无法正常工作！这是我启动时遇到的错误，下面是我的build.gradle.

Unfortunately it is still not working! Here is the error I get on launch, and below is my build.gradle.

我想要一个在罐子中完全包含嵌入式tomcat的Spring Boot应用程序.我是否在做一些非常规的事情?
在这一点上的任何帮助将不胜感激.

I want a spring boot application with embedded tomcat fully contained in a jar. Am I doing something highly unconventional?
Any help at this point would be greatly appreciated.

(About 80 lines of successful Spring Boot launch messages followed immediately by:
18:16:54.890 [main] WARN  o.s.b.c.e.AnnotationConfigEmbeddedWebApplicationContext - Exception encountered during context initialization - cancelling refresh attempt
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132) [SpringWsTest1.jar:na]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474) ~[SpringWsTest1.jar:na]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:117) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:689) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:969) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:958) [SpringWsTest1.jar:na]
    at ws.Application.main(Application.java:11) [SpringWsTest1.jar:na]
Caused by: org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getEmbeddedServletContainerFactory(EmbeddedWebApplicationContext.java:182) [SpringWsTest1.jar:na]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:155) [SpringWsTest1.jar:na]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:129) [SpringWsTest1.jar:na]
    ... 7 common frames omitted
18:16:54.891 [main] DEBUG o.s.b.f.s.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3b084709: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,application,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor,demoController,greetingController,org.springframework.boot.autoconfigure.AutoConfigurationPackages]; root of factory hierarchy
18:16:54.891 [main] ERROR o.s.boot.SpringApplication - Application startup failed
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132) ~[SpringWsTest1.jar:na]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474) ~[SpringWsTest1.jar:na]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:117) ~[SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:689) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:969) [SpringWsTest1.jar:na]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:958) [SpringWsTest1.jar:na]
    at ws.Application.main(Application.java:11) [SpringWsTest1.jar:na]
Caused by: org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getEmbeddedServletContainerFactory(EmbeddedWebApplicationContext.java:182) ~[SpringWsTest1.jar:na]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:155) ~[SpringWsTest1.jar:na]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:129) ~[SpringWsTest1.jar:na]
    ... 7 common frames omitted
Exception in thread "main" org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:117)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:689)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:969)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:958)
    at ws.Application.main(Application.java:11)
Caused by: org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getEmbeddedServletContainerFactory(EmbeddedWebApplicationContext.java:182)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:155)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:129)
    ... 7 more

build.gradle我正在使用:

build.gradle I am using:

println System.getProperty("java.home")

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.2.7.RELEASE")
    }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'spring-boot'


jar {
    manifest {
        attributes 'Main-Class': 'ws.Application'
    }

    from {
        configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
    }
}


repositories {
    mavenCentral()
}


dependencies {
    compile("org.springframework.boot:spring-boot-starter-web")
    testCompile("junit:junit")
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.3'
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

推荐答案

由于使用了gradle spring boot插件，因此无需为构建spring-boot应用程序的胖罐构件而进行额外的gradle配置.它已经有一个任务bootRepackage为您完成.您可以在官方用户指南

You don't need to make yourself additional gradle configurations for building a fat-jar artifact of spring-boot application, since you use a gradle spring boot plugin. It already has a task bootRepackage to do it for you. You can read about it in official user guide here and here.

只需删除您所做的所有操作以解压缩依赖项内容，然后使用此任务即可在您的应用程序中获取单个jar文件.

Just delete all you've done to unzip dependencies content and use this task to get a single jar file with your application.

顺便说一句，您可能有兴趣查看其他解决方案，它可能会提供更好的存档大小，您可以阅读其中一种名为Capsule的信息，

By the way, you may be interested to look at some other solution, which possibly could provide a better archive sizes, you can read about one of them, called Capsule, in this article.

这篇关于Gradle:使用Spring Boot依赖项构建“胖罐"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！