🔄Update: 添加 @MapperScan 注解

src/main/java/cn/hezhaohui/thumb/Application.java

@@ -1,8 +1,10 @@
 package cn.hezhaohui.thumb;
 
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+@MapperScan("cn.hezhaohui.thumb.mapper")
 @SpringBootApplication
 public class Application {
     public static void main(String[] args) {