springboot 读取配置参数

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;

@PropertySource(value = {"classpath:system.properties"})
@ConfigurationProperties(prefix = "http")
@Component
@Data
public class SystemConfig {

    private String baseUrl;


}

system.properties
　　http.baseUrl=http://xxx.com

@Autowired
protected SystemConfig systemConfig;


systemConfig.getBaseUrl()