【发布时间】：2020-09-02 08:47:33
【问题描述】：
当我在 IntelliJ 或在 cli 中使用 $ java -jar demo-0.0.1-SNAPSHOT.jar 启动 spring boot 应用程序/服务器时，它在本地工作，heroku 构建也成功，但是当我转到 url 时，它显示 Application Error。关于为什么 heroku 没有显示我的网站的任何想法？
我已经完成了在其他 stackoverflow 问题 (Heroku cannot deploy Java 11 Spring Boot App) 中找到的提示：
1.我确定java版本是一样的：
在我的 pom.xml 文件中：
<?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 https://maven.apache.org/xsd/maven-
4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version> <!-- =HERE is version 11 -->
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
-
我在根目录中创建了一个 Procfile，其中包含：
网页：java -jar target/demo-0.0.1-SNAPSHOT.jar
我检查了SDK设置为11：
- 我检查了 Java 编译器设置为 11：
另外，这是我的 maven 版本：
这些是我的路径系统变量：
所有这些实际上也在我的 git hub 上：https://github.com/gkromer/test2 这是 Heroku 到我的应用程序的链接：https://nameless-chamber-03761.herokuapp.com/
我还使用 heroku 入门页面上的简单演示对其进行了测试。效果很好，没问题。因此，我认为问题出在我的 IntelliJ 或 Maven 中，因为对于 heroku 中的示例，我不需要它（示例中的所有内容都可以使用 CLI 完成）。 信息：我的 spring 应用程序中没有数据库。
当我跑步时：
这是我的 heroku 日志尾巴：
$ heroku logs --tail
``2020-05-16T01:25:00.761021+00:00 app[web.1]: ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
2020-05-16T01:25:00.761097+00:00 app[web.1]: \\/ ___)| |_)| | | | | || (_| | ) ) ) )
2020-05-16T01:25:00.761171+00:00 app[web.1]: ' |____| .__|_| |_|_| |_\__, | / / / /
2020-05-16T01:25:00.761271+00:00 app[web.1]: =========|_|==============|___/=/_/_/_/
2020-05-16T01:25:00.762564+00:00 app[web.1]: :: Spring Boot :: (v2.3.0.RELEASE)
2020-05-16T01:25:00.762662+00:00 app[web.1]:
2020-05-16T01:25:01.061558+00:00 app[web.1]: 2020-05-16 01:25:01.058 INFO 4 --- [
main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on
0e5ba3e8-29ec-44ea-b140-f4c7d9fbefe9 with PID 4 (/app/target/demo-0.0.1-SNAPSHOT.jar started
by u23518 in /app)
2020-05-16T01:25:01.062689+00:00 app[web.1]: 2020-05-16 01:25:01.062 INFO 4 --- [
main] com.example.demo.DemoApplication : No active profile set, falling back to
default profiles: default
2020-05-16T01:25:02.824876+00:00 app[web.1]: 2020-05-16 01:25:02.824 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-05-16T01:25:02.847429+00:00 app[web.1]: 2020-05-16 01:25:02.847 INFO 4 --- [
main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-16T01:25:02.847833+00:00 app[web.1]: 2020-05-16 01:25:02.847 INFO 4 --- [
main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache
Tomcat/9.0.35]
2020-05-16T01:25:02.940699+00:00 app[web.1]: 2020-05-16 01:25:02.940 INFO 4 --- [
main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded
WebApplicationContext
2020-05-16T01:25:02.940837+00:00 app[web.1]: 2020-05-16 01:25:02.940 INFO 4 --- [
main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization
completed in 1789 ms
2020-05-16T01:25:03.219257+00:00 app[web.1]: 2020-05-16 01:25:03.218 INFO 4 --- [
main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService
'applicationTaskExecutor'
2020-05-16T01:25:03.409097+00:00 app[web.1]: 2020-05-16 01:25:03.408 INFO 4 --- [
main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: ServletContext resource
[/index.html]
2020-05-16T01:25:03.579270+00:00 app[web.1]: 2020-05-16 01:25:03.578 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with
context path ''
2020-05-16T01:25:03.611887+00:00 app[web.1]: 2020-05-16 01:25:03.611 INFO 4 --- [
main] com.example.demo.DemoApplication : Started DemoApplication in 3.485 seconds
(JVM running for 4.243)
2020-05-16T01:26:27.841081+00:00 heroku[web.1]: State changed from starting to crashed
2020-05-16T07:01:26.964378+00:00 heroku[web.1]: State changed from crashed to starting
2020-05-16T07:01:32.866428+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno
size. Custom settings will override them.
2020-05-16T07:01:32.872188+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS:
-XX:+UseContainerSupport -Xmx300m -Xss512k -XX:CICompilerCount=2 -Dfile.encoding=UTF-8
2020-05-16T07:01:34.924230+00:00 app[web.1]:
2020-05-16T07:01:34.924383+00:00 app[web.1]: . ____ _ __ _ _
2020-05-16T07:01:34.924501+00:00 app[web.1]: /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
2020-05-16T07:01:34.924566+00:00 app[web.1]: ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
2020-05-16T07:01:34.924676+00:00 app[web.1]: \\/ ___)| |_)| | | | | || (_| | ) ) ) )
2020-05-16T07:01:34.924759+00:00 app[web.1]: ' |____| .__|_| |_|_| |_\__, | / / / /
2020-05-16T07:01:34.924858+00:00 app[web.1]: =========|_|==============|___/=/_/_/_/
2020-05-16T07:01:34.926470+00:00 app[web.1]: :: Spring Boot :: (v2.3.0.RELEASE)
2020-05-16T07:01:34.926515+00:00 app[web.1]:
2020-05-16T07:01:35.320062+00:00 app[web.1]: 2020-05-16 07:01:35.315 INFO 4 --- [
main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on
00e45ce7-7952-453c-a8f1-ed845e4c193e with PID 4 (/app/target/demo-0.0.1-SNAPSHOT.jar started
by u31109 in /app)
2020-05-16T07:01:35.321331+00:00 app[web.1]: 2020-05-16 07:01:35.321 INFO 4 --- [
main] com.example.demo.DemoApplication : No active profile set, falling back to
default profiles: default
2020-05-16T07:01:37.629271+00:00 app[web.1]: 2020-05-16 07:01:37.628 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-05-16T07:01:37.676253+00:00 app[web.1]: 2020-05-16 07:01:37.675 INFO 4 --- [
main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-16T07:01:37.676721+00:00 app[web.1]: 2020-05-16 07:01:37.676 INFO 4 --- [
main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache
Tomcat/9.0.35]
2020-05-16T07:01:37.821137+00:00 app[web.1]: 2020-05-16 07:01:37.820 INFO 4 --- [
main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded
WebApplicationContext
2020-05-16T07:01:37.821463+00:00 app[web.1]: 2020-05-16 07:01:37.821 INFO 4 --- [
main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization
completed in 2305 ms
2020-05-16T07:01:38.276493+00:00 app[web.1]: 2020-05-16 07:01:38.273 INFO 4 --- [
main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService
'applicationTaskExecutor'
2020-05-16T07:01:38.454977+00:00 app[web.1]: 2020-05-16 07:01:38.454 INFO 4 --- [
main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: ServletContext resource
[/index.html]
2020-05-16T07:01:38.736300+00:00 app[web.1]: 2020-05-16 07:01:38.735 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with
context path ''
2020-05-16T07:01:38.759357+00:00 app[web.1]: 2020-05-16 07:01:38.759 INFO 4 --- [
main] com.example.demo.DemoApplication : Started DemoApplication in 4.771 seconds
(JVM running for 5.887)
2020-05-16T07:03:01.250095+00:00 heroku[web.1]: State changed from starting to crashed
2020-05-16T12:14:30.369161+00:00 heroku[router]: at=error code=H10 desc="App crashed"
method=GET path="/" host=nameless-chamber-03761.herokuapp.com request_id=71365728-accd-48fa-
a5ed-d4f420b6cd3c fwd="77.181.100.181" dyno= connect= service= status=503 bytes=
protocol=https
2020-05-16T12:14:30.742408+00:00 heroku[router]: at=error code=H10 desc="App crashed"
method=GET path="/favicon.ico" host=nameless-chamber-03761.herokuapp.com
request_id=24919523-0763-42f4-a9d2-8d148cdb97b8 fwd="77.181.100.181" dyno= connect= service=
status=503 bytes= protocol=https
2020-05-16T12:16:03.537987+00:00 heroku[router]: at=error code=H10 desc="App crashed"
method=GET path="/" host=nameless-chamber-03761.herokuapp.com request_id=5b7fb6ff-8868-4fc1-
b382-134f167bf327 fwd="77.181.100.181" dyno= connect= service= status=503 bytes=
protocol=https
2020-05-16T12:28:00.000000+00:00 app[api]: Build started by user ****
2020-05-16T12:28:23.062523+00:00 heroku[web.1]: State changed from crashed to starting
2020-05-16T12:28:22.893597+00:00 app[api]: Deploy 0e0889cc by user ****
2020-05-16T12:28:22.893597+00:00 app[api]: Release v4 created by user
****
2020-05-16T12:28:27.000000+00:00 app[api]: Build succeeded
2020-05-16T12:28:29.021898+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno
size. Custom settings will override them.
2020-05-16T12:28:29.029074+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS:
-XX:+UseContainerSupport -Xmx300m -Xss512k -XX:CICompilerCount=2 -Dfile.encoding=UTF-8
2020-05-16T12:28:31.896036+00:00 app[web.1]:
2020-05-16T12:28:31.896107+00:00 app[web.1]: . ____ _ __ _ _
2020-05-16T12:28:31.896138+00:00 app[web.1]: /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
2020-05-16T12:28:31.896262+00:00 app[web.1]: ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
2020-05-16T12:28:31.896402+00:00 app[web.1]: \\/ ___)| |_)| | | | | || (_| | ) ) ) )
2020-05-16T12:28:31.896555+00:00 app[web.1]: ' |____| .__|_| |_|_| |_\__, | / / / /
2020-05-16T12:28:31.896661+00:00 app[web.1]: =========|_|==============|___/=/_/_/_/
2020-05-16T12:28:31.899913+00:00 app[web.1]: :: Spring Boot :: (v2.3.0.RELEASE)
2020-05-16T12:28:31.899975+00:00 app[web.1]:
2020-05-16T12:28:32.281294+00:00 app[web.1]: 2020-05-16 12:28:32.276 INFO 4 --- [
main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on
5452f1b4-a278-48c5-98e1-c75bdd084232 with PID 4 (/app/target/demo-0.0.1-SNAPSHOT.jar started
by u10860 in /app)
2020-05-16T12:28:32.284125+00:00 app[web.1]: 2020-05-16 12:28:32.283 INFO 4 --- [
main] com.example.demo.DemoApplication : No active profile set, falling back to
default profiles: default
2020-05-16T12:28:34.522151+00:00 app[web.1]: 2020-05-16 12:28:34.521 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8090 (http)
2020-05-16T12:28:34.554953+00:00 app[web.1]: 2020-05-16 12:28:34.554 INFO 4 --- [
main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-16T12:28:34.555253+00:00 app[web.1]: 2020-05-16 12:28:34.555 INFO 4 --- [
main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache
Tomcat/9.0.35]
2020-05-16T12:28:34.675183+00:00 app[web.1]: 2020-05-16 12:28:34.674 INFO 4 --- [
main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded
WebApplicationContext
2020-05-16T12:28:34.675374+00:00 app[web.1]: 2020-05-16 12:28:34.675 INFO 4 --- [
main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization
completed in 2266 ms
2020-05-16T12:28:35.086773+00:00 app[web.1]: 2020-05-16 12:28:35.084 INFO 4 --- [
main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService
'applicationTaskExecutor'
2020-05-16T12:28:35.242152+00:00 app[web.1]: 2020-05-16 12:28:35.241 INFO 4 --- [
main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: ServletContext resource
[/index.html]
2020-05-16T12:28:35.547679+00:00 app[web.1]: 2020-05-16 12:28:35.547 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8090 (http) with
context path ''
2020-05-16T12:28:35.599875+00:00 app[web.1]: 2020-05-16 12:28:35.599 INFO 4 --- [
main] com.example.demo.DemoApplication : Started DemoApplication in 4.748 seconds
(JVM running for 6.57)
2020-05-16T12:29:57.002062+00:00 heroku[web.1]: State changed from starting to crashed
2020-05-16T12:29:57.005306+00:00 heroku[web.1]: State changed from crashed to starting
2020-05-16T12:30:02.809205+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno
size. Custom settings will override them.
2020-05-16T12:30:02.814414+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS:
-XX:+UseContainerSupport -Xmx300m -Xss512k -XX:CICompilerCount=2 -Dfile.encoding=UTF-8
2020-05-16T12:30:04.767929+00:00 app[web.1]:
2020-05-16T12:30:04.768123+00:00 app[web.1]: . ____ _ __ _ _
2020-05-16T12:30:04.768241+00:00 app[web.1]: /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
2020-05-16T12:30:04.768352+00:00 app[web.1]: ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
2020-05-16T12:30:04.768464+00:00 app[web.1]: \\/ ___)| |_)| | | | | || (_| | ) ) ) )
2020-05-16T12:30:04.768619+00:00 app[web.1]: ' |____| .__|_| |_|_| |_\__, | / / / /
2020-05-16T12:30:04.768732+00:00 app[web.1]: =========|_|==============|___/=/_/_/_/
2020-05-16T12:30:04.770504+00:00 app[web.1]: :: Spring Boot :: (v2.3.0.RELEASE)
2020-05-16T12:30:04.770574+00:00 app[web.1]:
2020-05-16T12:30:05.278180+00:00 app[web.1]: 2020-05-16 12:30:05.273 INFO 4 --- [
main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on
39dcf1b4-d45d-48df-9410-0e6628be2d64 with PID 4 (/app/target/demo-0.0.1-SNAPSHOT.jar started
by u20284 in /app)
2020-05-16T12:30:05.279551+00:00 app[web.1]: 2020-05-16 12:30:05.279 INFO 4 --- [
main] com.example.demo.DemoApplication : No active profile set, falling back to
default profiles: default
2020-05-16T12:30:05.652996+00:00 heroku[router]: at=error code=H20 desc="App boot timeout"
method=GET path="/" host=nameless-chamber-03761.herokuapp.com request_id=5bdbb8c6-a22f-446f-
ac6f-a1c6aec362f5 fwd="77.181.100.181" dyno= connect= service= status=503 bytes=
protocol=https
2020-05-16T12:30:07.744043+00:00 app[web.1]: 2020-05-16 12:30:07.743 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8090 (http)
2020-05-16T12:30:07.768880+00:00 app[web.1]: 2020-05-16 12:30:07.768 INFO 4 --- [
main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-16T12:30:07.769379+00:00 app[web.1]: 2020-05-16 12:30:07.769 INFO 4 --- [
main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache
Tomcat/9.0.35]
2020-05-16T12:30:07.898340+00:00 app[web.1]: 2020-05-16 12:30:07.898 INFO 4 --- [
main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded
WebApplicationContext
2020-05-16T12:30:07.898510+00:00 app[web.1]: 2020-05-16 12:30:07.898 INFO 4 --- [
main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization
completed in 2476 ms
2020-05-16T12:30:08.282317+00:00 app[web.1]: 2020-05-16 12:30:08.281 INFO 4 --- [
main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService
'applicationTaskExecutor'
2020-05-16T12:30:08.498359+00:00 app[web.1]: 2020-05-16 12:30:08.497 INFO 4 --- [
main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: ServletContext resource
[/index.html]
2020-05-16T12:30:08.728759+00:00 app[web.1]: 2020-05-16 12:30:08.728 INFO 4 --- [
main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8090 (http) with
context path ''
2020-05-16T12:30:08.759592+00:00 app[web.1]: 2020-05-16 12:30:08.759 INFO 4 --- [
main] com.example.demo.DemoApplication : Started DemoApplication in 4.84 seconds (JVM
running for 5.945)
2020-05-16T12:31:05.938961+00:00 heroku[router]: at=error code=H20 desc="App boot timeout"
method=GET path="/" host=nameless-chamber-03761.herokuapp.com request_id=d5d37773-f24c-408f-
bc44-5db520817e47 fwd="77.181.100.181" dyno= connect= service= status=503 bytes=
protocol=https
2020-05-16T12:31:30.779513+00:00 heroku[web.1]: State changed from starting to crashed
2020-05-16T12:31:32.503518+00:00 heroku[router]: at=error code=H10 desc="App crashed"
method=GET path="/" host=nameless-chamber-03761.herokuapp.com request_id=a8c93999-1d2c-4fe1-
ba38-520eeeaced15 fwd="77.181.100.181" dyno= connect= service= status=503 bytes=
protocol=https
【问题讨论】：
-
日志显示 heroku 正在检查应用程序的状态（健康检查）：
eroku[web.1]: State changed from starting to crashed 2020-05-16T12:29:57.005306+00:00 heroku[web.1]: State changed from crashed to starting并且根据代码，您的应用程序不包含健康检查，这会告诉 heroku 您的应用程序正在运行很好…… -
好的，谢谢，我添加了执行器，localhost:8080/actuator/health 现在显示
status: UP。但它仍然不适用于heroku。入门示例也不包括健康检查，不是吗？ -
我发现了另一件事。当我运行`mvn deploy 时，它失败并说我没有添加distributionManagement。所以我在没有真正理解的情况下添加到我的 pom.xml：
-
false corp1 Corporate Repository git.heroku.com/nameless-chamber-03761.git</url> default <url>似乎是错误的。mvn deploy再次显示错误：无法部署工件：在 corp1 中找不到工件 com.example:demo:jar:0.0.1-20200516.174655-1 (git.heroku.com/nameless-chamber-03761.git) 需要什么存储库？ -
我认为您应该查看 heroku 的文档如何配置您的应用程序部署。我认为问题很简单，heroku 无法识别您的应用程序已正确启动，只是重试几次，然后关闭。部署/分发管理不是这里的问题。
标签： java spring spring-boot maven heroku