package com.xiaopeng.common.core.utils;


import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;

@Component
public class ConfigUtils {


    // 1. 正常注入非静态字段
    @Value("${token.secret}")
    private String secret;


    private static ConfigUtils instance;

    @PostConstruct
    public void init() {
        System.err.println("ConfigUtils init");
        instance = this;
    }

    // 3. 提供静态方法供外部调用
    public static String getMyConfigValue() {
        if (instance == null) {
            throw new IllegalStateException("ConfigUtils has not been initialized by Spring yet.");
        }
        return instance.secret;
    }

    // 如果需要修改值，也可以提供静态 setter (视需求而定)
    public static void setMyConfigValue(String value) {
        if (instance != null) {
            instance.secret = value;
        }
    }
}