❤️java实体类读取属性文件，并赋值

package com.stu.oss.utils;

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

//项目启动，spring接口，spring加载之后，执行接口一个方法
@Component
public class ConstantPropertiesUtil implements InitializingBean {

    //读取配置文件的内容

    @Value("${aliyun.oss.file.endpoint}")
    private String endpoint;
    @Value("${aliyun.oss.file.keyid}")
    private String keyid;
    @Value("${aliyun.oss.file.keysecret}")
    private String keysecret;
    @Value("${aliyun.oss.file.bucketname}")
    private String bucketname;

    //定义一些静态常量
    public  static String END_POINT;
    public  static String KEY_ID;
    public  static String KEY_SECRET;
    public  static String BUCKET_NAME;

    //上边赋值完成后，会执行afterPropertiesSet方法，这是spring机制
    @Override
    public void afterPropertiesSet() throws Exception {
        END_POINT = endpoint;
        KEY_ID = keyid;
        KEY_SECRET = keysecret;
        BUCKET_NAME = bucketname;


    }
}

String endPoint = ConstantPropertiesUtil.END_POINT;
String accessKeyId = ConstantPropertiesUtil.KEY_ID;
String accessKeySecret = ConstantPropertiesUtil.KEY_SECRET;
String bucketName = ConstantPropertiesUtil.BUCKET_NAME;