diff --git a/study-springboot-chapter03/src/main/java/com/cbitedu/springboot/StudySpringbootChapter03Application.java b/study-springboot-chapter03/src/main/java/com/cbitedu/springboot/StudySpringbootChapter03Application.java
index 8192d4744d91d8346068048f9002a55382c95ac6..c55f859915b44e564fddb59456b53d08e7c7ce94 100644
--- a/study-springboot-chapter03/src/main/java/com/cbitedu/springboot/StudySpringbootChapter03Application.java
+++ b/study-springboot-chapter03/src/main/java/com/cbitedu/springboot/StudySpringbootChapter03Application.java
@@ -4,6 +4,9 @@ import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+/**
+ * 项目启动类
+ */
 @SpringBootApplication
 @MapperScan(basePackages = "com.cbitedu.springboot.mapper")
 public class StudySpringbootChapter03Application {