docker run启动spring boot程序报错 Error: Could not find or load main class ‐jar

Question

我的Dockerfile如下：

FROM java
WORKDIR /app
ADD /app/tailf-web-1.2.1-SNAPSHOT.jar /app/
ADD /app/classes/application.yaml /app/log/
# ENTRYPOINT ["java","-version"]
# ENTRYPOINT ["ls","/app"]
# ENTRYPOINT ["echo ==============================="]
# ENTRYPOINT ["ls","/app/log"]
CMD ["java", "‐jar", "/app/tailf-web-1.2.1-SNAPSHOT.jar"] 

构建的镜像

现象

使用run命令会报错

[root@registry ~]# docker run -p 8087:8087 -it 192.168.126.99:5000/tailf-web:1.2.1-SNAPSHOT
Error: Could not find or load main class ‐jar

在run 后面手动覆盖启动命令又是正常的

[root@registry ~]# docker run -p 8087:8087 -it 192.168.126.99:5000/tailf-web:1.2.1-SNAPSHOT java -jar /app/tailf-web-1.2.1-SNAPSHOT.jar
LOGBACK: No context given for c.q.l.core.rolling.SizeAndTimeBasedRollingPolicy@1537358694
 
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.2.2.RELEASE)

• 不知道这是为什么会出现这个问题，我看了仓库里镜像详情是带有启动命令
  

  

Answer 1

改成如下试一下，如有帮助，请采纳

FROM java
WORKDIR /app
ADD /app/tailf-web-1.2.1-SNAPSHOT.jar /app/
ADD /app/classes/application.yaml /app/log/
# ENTRYPOINT ["java","-version"]
# ENTRYPOINT ["ls","/app"]
# ENTRYPOINT ["echo ==============================="]
# ENTRYPOINT ["ls","/app/log"]
ENTRYPOINT["java", "‐jar", "/app/tailf-web-1.2.1-SNAPSHOT.jar"]