spring boot自定义配置

1. 创建自定义配置文件application-custom.yml，与application.yml文件同一目录（新创建的yml文件需要application前缀）

spring:
  custom:
    sip: 127.0.0.1
    port: 54321
    users:
      - username: test1
        password: 123456
      - username: test2
        password: 223456

2. 在application.yml中激活application-custom.yml

spring:
  profiles:
    active: custom

3. 创建自定义配置类

@Data
@Configuration
@ConfigurationProperties(prefix = "spring.custom")
public class CustomConfig {
    private String sip;
    private String port;
    private List<UserInfo> users;
}

@Data
public class UserInfo {
    private String username;
    private String password;
}

4. 测试

    @Autowired
    CustomConfig config;
    
    // 省略其他代码，仅保留测试代码
    System.out.println(config.getSip());
    System.out.println(config.getPort());
    for (UserInfo user : config.getUsers()) {
        System.out.println("name: " + user.getUsername() + ", password: " + user.getPassword());
    }

5. 测试结果

127.0.0.1
54321
name: test1, password: 123456
name: test2, password: 223456