SpringBoot通过@Value获取application.yml配置文件的属性值

application.yml实例：

spring:
    redis:
      database: 0
      host: 127.0.0.1

获取方法：

/**
 * @Auther:WangZiBin
 * @Description:
 * @Modified By: */ @Configuration public class JedisConfig{ private Logger jedisConfigLogger= LoggerFactory.getLogger(JedisConfig.class); @Value("${spring.redis.host:#{null}}") private String host; @Value("${spring.redis.port:#{null}}") private Integer port; public String getHost() { return host; } public void setHost(String host) { this.host = host; } public Integer getPort() { return port; } public void setPort(Integer port) { this.port = port; } }

注意@Configuration注解是必须的，@Component同样适用

@Value("${spring.redis.port:#{null}}")

其中

:#{null}

作用为在取不到对应配置值时，采用默认值null赋值