修改springboot的配置文件

1 创建一个类实现EnvironmentPostProcessor

2 resources/META-INFO/spring.factories文件,配置实现类的全路径

以下是代码

实现类

java 复制代码
package com.haier.configure.config;

import org.apache.commons.lang3.StringUtils;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.boot.env.OriginTrackedMapPropertySource;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.MutablePropertySources;
import org.springframework.core.env.PropertySource;

import java.util.HashMap;
import java.util.Map;

/**
 * @author A200
 * @date 2024/12/18 16:58
 */
public class MyEnvPostProcessor implements EnvironmentPostProcessor {

    @Override
    public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
        System.out.println("开始打印....");
        Map<String, Object> bootstrapSource = new HashMap<>();
        Map<String, Object> applicationSource = new HashMap<>();
        MutablePropertySources propertySources = environment.getPropertySources();
        for (PropertySource<?> propertySource : propertySources) {
            String propertySourceName = propertySource.getName();
            System.out.println("名称:"+propertySourceName);
            if (StringUtils.containsIgnoreCase(propertySourceName, "bootstrap.yml")) {
                System.out.println("bootstrap配置文件打印:");
                Map<String,Object> map = (Map<String,Object>)propertySource.getSource();
                bootstrapSource.putAll(map);
                bootstrapSource.put("wei.age","18");

                propertySources.remove(propertySourceName);
                propertySources.addLast(new OriginTrackedMapPropertySource(propertySourceName, bootstrapSource));
                continue;
            }

            if (StringUtils.containsIgnoreCase(propertySourceName, "application.yml")) {
                System.out.println("application配置文件打印:");
                Map<String,Object> map = (Map<String,Object>)propertySource.getSource();
                applicationSource.putAll(map);
                applicationSource.put("wei.name","longlonglong");
                applicationSource.put("wei.flag","true");

                propertySources.remove(propertySourceName);
                propertySources.addLast(new OriginTrackedMapPropertySource(propertySourceName, applicationSource));

            }
        }
    }
}

spring.factories文件

java 复制代码
org.springframework.boot.env.EnvironmentPostProcessor=\
  com.haier.configure.config.BootstrapDecryptEnvironmentPostProcessor,\
  com.haier.configure.config.SystemDecryptEnvironmentPostProcessor,\
  com.haier.configure.config.MyEnvPostProcessor

测试controller

java 复制代码
@Value("${wei.age}")
private Integer weiage;
@Value("${wei.name}")
private String weiname;
@Value("${wei.flag}")
private Boolean weiflag;

@PostConstruct
public void init(){
    System.out.println("打印配置哦:"+weiage);
    System.out.println("打印配置哦:"+weiname);
    System.out.println("打印配置哦:"+weiflag);
}
相关推荐
best_virtuoso16 分钟前
PostgreSQL 常见数组操作函数语法、功能
java·数据结构·postgresql
yudiandian201416 分钟前
02 Oracle JDK 下载及配置(解压缩版)
java·开发语言
Q_Q51100828537 分钟前
python+uniapp基于微信小程序的旅游信息系统
spring boot·python·微信小程序·django·flask·uni-app·node.js
楚韵天工1 小时前
宠物服务平台(程序+文档)
java·网络·数据库·spring cloud·编辑器·intellij-idea·宠物
helloworddm1 小时前
Orleans Stream SubscriptionId 生成机制详解
java·系统架构·c#
失散131 小时前
分布式专题——43 ElasticSearch概述
java·分布式·elasticsearch·架构
ajsbxi1 小时前
【Java 基础】核心知识点梳理
java·开发语言·笔记
Q_Q5110082851 小时前
python基于web的汽车班车车票管理系统/火车票预订系统/高铁预定系统 可在线选座
spring boot·python·django·flask·node.js·汽车·php
AntBlack1 小时前
虽迟但到 :盘一盘 SpringAI 现在发展得怎么样了?
后端·spring·openai
聪明的笨猪猪1 小时前
Java JVM “调优” 面试清单(含超通俗生活案例与深度理解)
java·经验分享·笔记·面试