自动更新Java项目中的属性文件值

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

public class PropertyFileUpdater {
    public static void main(String[] args) {
        String propertyFilePath = "path/to/property/file.properties";
        String keyToUpdate = "key";
        String newValue = "new value";

        // 读取属性文件
        Properties properties = new Properties();
        try (FileInputStream fis = new FileInputStream(propertyFilePath)) {
            properties.load(fis);
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 获取属性值
        String oldValue = properties.getProperty(keyToUpdate);
        System.out.println("旧值：" + oldValue);

        // 更新属性值
        properties.setProperty(keyToUpdate, newValue);

        // 写回属性文件
        try (FileOutputStream fos = new FileOutputStream(propertyFilePath)) {
            properties.store(fos, null);
        } catch (IOException e) {
            e.printStackTrace();
        }

        System.out.println("属性文件已更新！");
    }
}