我有一个spring boot gradle app,我可以在我的电脑上成功运行:
heroku local
当我去的时候,它也可以成功部署在heroku上:
git push heroku master
这是我的结果:
Counting objects: 17, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (5/5), done.
Writing objects: 100% (9/9), 596 bytes | 0 bytes/s, done.
Total 9 (delta 3), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Fetching set buildpack https://github.com/heroku/heroku-buildpack-gradle... done
remote: -----> Gradle app detected
remote: -----> Installing OpenJDK 1.8... done
remote: -----> Building Gradle app...
remote: WARNING: The Gradle buildpack is currently in Beta.
remote: -----> executing ./gradlew build
remote: :compileJavaNote: Some input files use unchecked or unsafe operations.
remote: Note: Recompile with -Xlint:unchecked for details.
remote:
remote: :processResources
remote: :classes
remote: :jar
remote: :bootRepackage
remote: :assemble
remote: :compileTestJava UP-TO-DATE
remote: :processTestResources UP-TO-DATE
remote: :testClasses UP-TO-DATE
remote: :test UP-TO-DATE
remote: :check UP-TO-DATE
remote: :build
remote:
remote: BUILD SUCCESSFUL
remote:
remote: Total time: 11.935 secs
remote:
remote: -----> Discovering process types
remote: Procfile declares types -> web
remote:
remote: -----> Compressing... done, 72.3MB
remote: -----> Launching... done, v9
remote: https://myapp.herokuapp.com/ deployed to Heroku
remote:
remote: Verifying deploy... done.
To https://git.heroku.com/myapp.git
6326429..291326d master -> master
但是当我尝试在heroku上访问它时,它会崩溃。 heroku日志说:
2015-12-11T17:05:46.096985+00:00 heroku[api]: Deploy 291326d by xxx@gmail.com
2015-12-11T17:05:46.097021+00:00 heroku[api]: Release v9 created by xxx@gmail.com
2015-12-11T17:05:46.378258+00:00 heroku[slug-compiler]: Slug compilation started
2015-12-11T17:05:46.378269+00:00 heroku[slug-compiler]: Slug compilation finished
2015-12-11T17:05:46.755655+00:00 heroku[web.1]: State changed from crashed to starting
2015-12-11T17:05:53.121398+00:00 heroku[web.1]: Starting process with command `java -Dserver.port=5000 -jar build/libs/myapp.jar`
2015-12-11T17:05:54.260741+00:00 app[web.1]: Error: Unable to access jarfile build/libs/myapp.jar
2015-12-11T17:05:54.784064+00:00 heroku[web.1]: State changed from starting to crashed
2015-12-11T17:05:54.773714+00:00 heroku[web.1]: Process exited with status 1
2015-12-11T17:05:54.788248+00:00 heroku[web.1]: State changed from crashed to starting
为什么Unable to access jarfile build/libs/myapp.jar
?
当我导航到本地PC上的那个文件夹时,jar文件就在那里。
我对如何解决这个问题的想法不足。
答案 0 :(得分:3)
我最终在这里找到了一个非常有用的帖子:Running Spring app built with gradle on Heroku
这帮助了我解决了我的问题 - 这个帖子似乎比Heroku的官方指南更详细。
您必须将以下代码添加到build.gradle文件中:
task stage(type: Copy, dependsOn: [clean, build]) {
from jar.archivePath
into project.rootDir
rename {
'app.jar'
}
}
stage.mustRunAfter(clean)
clean << {
project.file('app.jar').delete()
}
然后,将您的Procfile指向app.jar:
web: java $JAVA_OPTS -jar app.jar
答案 1 :(得分:3)
您无需为此修改舞台任务。
在gradle.build文件中,请确保为您构建的工件命名。
jar {
baseName = 'app'
version = '0.0.1'
}
完成了这项工作,以及Procfile
中的以下内容,它应该可以正常运行。
web: java -Dserver.port=$PORT $JAVA_OPTS -jar build/libs/app-0.0.1.jar
我发现如果没有明确定义名称,heroku似乎将该工件命名为build-{buildNumber}.jar
,并且难怪它永远不会找到app.jar
。
此外,如果尚未设置,则需要设置构建包。
heroku config:set GRADLE_TASK="build"
答案 2 :(得分:1)
Gradle buildpack将自动检测Spring Boot和Ratpack Web框架的使用。
仅在需要时才应覆盖web
命令。如果您使用的是Spring Boot,则根本不需要指定Procfile
。
删除它,让您的应用无需进一步配置即可运行。