Spring Boot 自动配置

第一配置类：

import org.springframework.boot.context.properties.ConfigurationProperties;

import lombok.Data;

@ConfigurationProperties(prefix = "spring.datasource")

@Data

public class RabbitConfig {

private String id;

}

maven 引入配置

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-configuration-processor</artifactId>

<optional>true</optional>

</dependency>