FROM openjdk:8-jdk-alpine
ARG JAR_FILE=target/*.jar
ARG SCRIPT_FILE=src/main/resources/script/test.py
COPY ${JAR_FILE} app.jar
COPY ${SCRIPT_FILE} test.py
ENTRYPOINT ["java","-jar","/app.jar"]

String interpretor = "python";
String scriptFile = "test.py";
String arguments = "ping";
String[] cmd = {interpretor,scriptFile,arguments};
try {
    Process p = Runtime.getRuntime().exec(cmd);
    ...
}
**异常：**

任何帮助都会感激。谢谢。
<details>
<summary>英文:</summary>
i am new to docker and trying to dockerize a java app, which in turn calls a python script
Dockerfile :
    FROM openjdk:8-jdk-alpine
    ARG JAR_FILE=target/*.jar
    ARG SCRIPT_FILE=src/main/resources/script/test.py
    
    COPY ${JAR_FILE} app.jar
    COPY ${SCRIPT_FILE} test.py
    ENTRYPOINT [&quot;java&quot;,&quot;-jar&quot;,&quot;/app.jar&quot;]
Now my App has a line of code which executes a python script, something like this :
Code snippet : 
            String interpretor = &quot;python&quot;;
            String scriptFile = &quot;test.py&quot;;
            String arguments = &quot;ping&quot;;
            String[] cmd = {interpretor,scriptFile,arguments};
          	
          	try {
                Process p = Runtime.getRuntime().exec(cmd);
                ...
            
**Exception:**

Any help appreciated.
Thanks
</details>
# 答案1
**得分**: 1
Python运行时在基础镜像`openjdk:8-jdk-alpine`中不存在，您需要在调用Python脚本之前首先安装它。
您可以尝试以下操作：
```Dockerfile
FROM openjdk:8-jdk-alpine
RUN apk add --no-cache python
ARG JAR_FILE=target/*.jar
ARG SCRIPT_FILE=src/main/resources/script/test.py
COPY ${JAR_FILE} app.jar
COPY ${SCRIPT_FILE} test.py
ENTRYPOINT ["java","-jar","/app.jar"]