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

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 {@Overridepublic 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

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

测试controller

@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);
}