经常碰见这问题，就记录一下吧

起因

首先，我想要在工具类的静态方法里面调用获取这个属性，所以我把这个改成static 修饰的，重新生成了set，get方法，然后就获取不到了

原因

@ConfigurationProperties只会调用 非静态的set方法

解决方法

将set方法改成非静态

实例代码

package com.ruoyi.common.config;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

/**
 * 七牛云相关配置
 * @author surfingCat
 * @date 2023/9/19 14:57
 */
@Component
@ConfigurationProperties(prefix = "qiniuyun")
public class QiNiuYunConfig {

    private static String accessKey;

    private static String secretKey;

    private static String bucket;

    public static String getAccessKey() {
        return accessKey;
    }

    public void setAccessKey(String accessKey) {
        QiNiuYunConfig.accessKey = accessKey;
    }

    public static String getSecretKey() {
        return secretKey;
    }

    public void setSecretKey(String secretKey) {
        QiNiuYunConfig.secretKey = secretKey;
    }

    public static String getBucket() {
        return bucket;
    }

    public void setBucket(String bucket) {
        QiNiuYunConfig.bucket = bucket;
    }
}