如何使用java脚本将动态值存储在本地存储中？

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

public class LocalStorage {
    private static final String FILE_PATH = "dynamic_value.txt";

    public static void storeDynamicValue(String dynamicValue) {
        try {
            File file = new File(FILE_PATH);
            FileWriter fileWriter = new FileWriter(file);
            BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
            bufferedWriter.write(dynamicValue);
            bufferedWriter.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static String getDynamicValue() {
        try {
            File file = new File(FILE_PATH);
            if (file.exists()) {
                // Read the dynamic value from the file
                // and return it
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        String dynamicValue = "This is a dynamic value";
        storeDynamicValue(dynamicValue);
        String retrievedValue = getDynamicValue();
        System.out.println("Retrieved dynamic value: " + retrievedValue);
    }
}