https://www.cnblogs.com/lw5946/p/11769298.html
1.项目中引入依耐
<!-- 引入相关依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<!--lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
2.添加配置文件
import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Configuration; @Configuration @ConfigurationProperties(prefix = "file.upload") @Data public class FileUploadConfig { /** Maximum number of bytes per file */ private String maxSize = "1024M"; /** 不允许的文件后缀 */ private String rejectSuffix; }
import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Configuration; import java.util.Map; @Configuration @ConfigurationProperties("map.test") @Data public class MapTestConfig { /** 测试Map类型数据的提示 */ private Map<String, Object> data; }
3.把项目 maven compile