下面的java代码将标准输入和输出重定向到文件:
FileInputStream fin=new FileInputStream("In.txt");
System.setIn(fin); //Standard input will be taken from file In.txt
FileOutputStream fout=new FileOutputStream("Out.txt");
PrintStream p=new PrintStream(fout);
System.setOut(p); //Standard output of the progr
我正在尝试为我的项目设置一个Dockerfile,并且不确定如何在容器中设置一个JAVA_HOME。
FROM python:3.6
# Set the working directory to /app
WORKDIR /app
# Copy the current directory contents into the container at /app
COPY . /app
# Install any needed packages specified in requirements.txt
RUN pip install --trusted-host pypi.python.org