Spring Boot 将 @Value 绑定到 Enum 不区分大小写

如何使用Spring Boot将@Value绑定到不区分大小写的枚举类型

java
public enum DayOfWeek {
    MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY
}

properties
app.dayOfWeek=Monday

java
@Configuration
public class AppConfig {
    @Value("${app.dayOfWeek}")
    private DayOfWeek dayOfWeek;
    // 其他的配置属性...
    @Bean
    public void printDayOfWeek() {
        System.out.println("Today is " + dayOfWeek);
    }
}

java
@Component
public class CaseInsensitiveEnumConverter> implements Converter {
    private Class enumType;
    public CaseInsensitiveEnumConverter(Class enumType) {
        this.enumType = enumType;
    }
    @Override
    public T convert(String source) {
        return Enum.valueOf(enumType, source.toUpperCase());
    }
}

java
@Configuration
public class AppConfig implements WebMvcConfigurer {
    @Override
    public void addFormatters(FormatterRegistry registry) {
        registry.addConverter(new CaseInsensitiveEnumConverter<>(DayOfWeek.class));
    }
    // 其他的配置属性...
    @Bean
    public void printDayOfWeek(DayOfWeek dayOfWeek) {
        System.out.println("Today is " + dayOfWeek);
    }
}