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

1. package com.haier.configure.config;
3. import org.apache.commons.lang3.StringUtils;
4. import org.springframework.boot.SpringApplication;
5. import org.springframework.boot.env.EnvironmentPostProcessor;
6. import org.springframework.boot.env.OriginTrackedMapPropertySource;
7. import org.springframework.core.env.ConfigurableEnvironment;
8. import org.springframework.core.env.MutablePropertySources;
9. import org.springframework.core.env.PropertySource;
11. import java.util.HashMap;
12. import java.util.Map;
14. /**
15. * @author A200
16. * @date 2024/12/18 16:58
17. */
18. public class MyEnvPostProcessor implements EnvironmentPostProcessor {
20.     @Override
21.     public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
22.         System.out.println("开始打印....");
23.         Map<String, Object> bootstrapSource = new HashMap<>();
24.         Map<String, Object> applicationSource = new HashMap<>();
25.         MutablePropertySources propertySources = environment.getPropertySources();
26.         for (PropertySource<?> propertySource : propertySources) {
27.             String propertySourceName = propertySource.getName();
28.             System.out.println("名称:"+propertySourceName);
29.             if (StringUtils.containsIgnoreCase(propertySourceName, "bootstrap.yml")) {
30.                 System.out.println("bootstrap配置文件打印：");
31.                 Map<String,Object> map = (Map<String,Object>)propertySource.getSource();
32.                 bootstrapSource.putAll(map);
33.                 bootstrapSource.put("wei.age","18");
35.                 propertySources.remove(propertySourceName);
36.                 propertySources.addLast(new OriginTrackedMapPropertySource(propertySourceName, bootstrapSource));
37.                 continue;
38.             }
40.             if (StringUtils.containsIgnoreCase(propertySourceName, "application.yml")) {
41.                 System.out.println("application配置文件打印：");
42.                 Map<String,Object> map = (Map<String,Object>)propertySource.getSource();
43.                 applicationSource.putAll(map);
44.                 applicationSource.put("wei.name","longlonglong");
45.                 applicationSource.put("wei.flag","true");
47.                 propertySources.remove(propertySourceName);
48.                 propertySources.addLast(new OriginTrackedMapPropertySource(propertySourceName, applicationSource));
50.             }
51.         }
52.     }
53. }

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spring.factories文件

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

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测试controller

1. @Value("${wei.age}")
2. private Integer weiage;
3. @Value("${wei.name}")
4. private String weiname;
5. @Value("${wei.flag}")
6. private Boolean weiflag;
8. @PostConstruct
9. public void init(){
10.     System.out.println("打印配置哦:"+weiage);
11.     System.out.println("打印配置哦:"+weiname);
12.     System.out.println("打印配置哦:"+weiflag);
13. }

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