springboot 静态注入 单例

package com.b2q.web_push.util;
 
import io.goeasy.GoEasy;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
 
@Component
public class GoEasyUtil {
 
    private static String regionHost; //服务商网址
    private static String appkey ;//官网appkey
 
    @Value("${regionHost}")
    public void setregionHost(String regionHost){
        GoEasyUtil.regionHost = regionHost;
    }
    public static String getregionHost() {
        return regionHost;
    }
 
    @Value("${appkey}")
    public void setappkey(String appkey){
        GoEasyUtil.appkey = appkey;
    }
    public static String getappkey() {
        return appkey;
    }
    private static class GoEasyUtil1
    {
        public final static GoEasy instance = new GoEasy(regionHost,appkey);
    }
 
    public static GoEasy getGoEasy()
    {
        return GoEasyUtil1.instance;
    }
 
}