基于@ConfigurationProperties动态自定义配置

有时候我们需要一些全局的常量进行配置，除了定义为全局常量外还可以通过读取配置的方式进行动态修改

application.yaml

jili:
  weixin:
    appId: wx00001
    appSecret: abbcccccc
  push:
    badge: 1
    sound: default

Myproperties.java

package com.jili.redistest.config;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
 * @author: Jili
 * @date: Created on 2021/7/12 11:17
 */
@Data
@Component
@ConfigurationProperties(prefix = "jili",ignoreUnknownFields = false)
public class Myproperties {
    private final Weixin weixin= new Weixin();
    private final Push push = new Push();
    @Data
    public static class Weixin{
        private String appId;
        private String appSecret;
    }
    @Data
    public static class Push{
        private String badge;
        private String sound;
    }
}

• ignoreUnknownFields = false 告诉 Spring Boot 在有属性不能匹配到声明的域的时候抛出异常
• prefix 用来选择哪个属性的prefix名字来绑定

test.java

@Test
    void test1(){
        System.out.println(myproperties.getWeixin().getAppId());
        myproperties.getWeixin().setAppId("123456");
        System.out.println(myproperties.getWeixin().getAppId());
    }

wx00001
123456