如何在spring boot中将创建的文件保存到application.properties文件中指定的路径

Question

I have a method which creates new file after every execution I don't want to hardcode file path in code so I added a new property in application.properties file like

jmeter.jmx.path=D:\\\\PerformanceTesting\\\\JMXFiles\\\\

and instance variable which holds value like

  @Value("${jmeter.jmx.path}")
  private String jmxPath;

want to get the value of a variable inside method

public void saveAsJmxFile(HashTree projectTree, String fileName) throws IOException {
    //TODO 
    SaveService.saveTree(projectTree, new FileOutputStream(jmxPath+fileName+".jmx"));
}

its not woking for me, but if i hardcode then it i'll work.

public void saveAsJmxFile(HashTree projectTree, String fileName) throws IOException {
          //TODO  remove hardcoded jmxPath
           SaveService.saveTree(projectTree, new 
           FileOutputStream("D:\\PerformanceTesting\\JMXFiles\\"+fileName+".jmx"));
    }

Answer 1

just make sure that the directory is exist

    Files.createDirectories(Paths.get(jmxPath));

i'm using java8+ nio here