package denglu;
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import java.io.*;
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import java.util.Properties;
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public class UserChuShiHua {
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private static Properties userProperties;
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private static final String FILE_PATH = "user.properties";
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// 初始化方法：从文件加载数据到内存
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public static void initialize() {
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userProperties = new Properties();
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try (InputStream input = new FileInputStream(FILE_PATH)) {
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userProperties.load(input);
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System.out.println("用户数据初始化成功！");
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} catch (IOException e) {
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System.err.println("初始化失败，文件未找到或读取错误: " + e.getMessage());
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}
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}
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// 更新属性值并保存到文件
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public static void updateProperty(String key, String value) {
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if (userProperties == null) {
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System.err.println("错误：请先调用 initialize() 方法初始化数据！");
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return;
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}
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userProperties.setProperty(key, value);
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try (OutputStream output = new FileOutputStream(FILE_PATH)) {
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userProperties.store(output, "Updated User Properties");
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} catch (IOException e) {
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System.err.println("更新失败，文件写入错误: " + e.getMessage());
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}
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}
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// 获取属性值（可选辅助方法）
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public static String getProperty(String key) {
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if (userProperties == null) {
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initialize();
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}
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return userProperties.getProperty(key);
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}
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}
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