diff --git a/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/config/MybatisPlusJoinConfiguration.java b/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/config/MybatisPlusJoinConfiguration.java
index 3321a0212..63529ca20 100644
--- a/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/config/MybatisPlusJoinConfiguration.java
+++ b/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/config/MybatisPlusJoinConfiguration.java
@@ -7,6 +7,7 @@ import org.springframework.context.annotation.Configuration;
 
 import java.util.List;
 
+// TODO @升平：是不是作为 YudaoMybatisAutoConfiguration 的 bean 即可呀？然后 getMethodList 不用重写
 @Configuration
 public class MybatisPlusJoinConfiguration extends JoinDefaultSqlInjector {
 
diff --git a/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/mapper/BaseMapperX.java b/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/mapper/BaseMapperX.java
index 56e1deb05..2a7a828df 100644
--- a/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/mapper/BaseMapperX.java
+++ b/yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/mapper/BaseMapperX.java
@@ -17,6 +17,8 @@ import java.util.List;
 
 /**
  * 在 MyBatis Plus 的 BaseMapper 的基础上拓展，提供更多的能力
+ *
+ * 为什么继承 JoinBaseMapper 接口？支持 MyBatis Plus 多表 Join 的能力。
  */
 public interface BaseMapperX<T> extends JoinBaseMapper<T> {
 
diff --git a/yudao-framework/yudao-spring-boot-starter-test/src/main/java/cn/iocoder/yudao/framework/test/core/ut/BaseDbUnitTest.java b/yudao-framework/yudao-spring-boot-starter-test/src/main/java/cn/iocoder/yudao/framework/test/core/ut/BaseDbUnitTest.java
index 1b16ba0d1..fc29a1b78 100644
--- a/yudao-framework/yudao-spring-boot-starter-test/src/main/java/cn/iocoder/yudao/framework/test/core/ut/BaseDbUnitTest.java
+++ b/yudao-framework/yudao-spring-boot-starter-test/src/main/java/cn/iocoder/yudao/framework/test/core/ut/BaseDbUnitTest.java
@@ -38,6 +38,7 @@ public class BaseDbUnitTest {
             YudaoMybatisAutoConfiguration.class, // 自己的 MyBatis 配置类
             MybatisPlusAutoConfiguration.class, // MyBatis 的自动配置类
             MybatisPlusJoinConfiguration.class, // MyBatis 的自动配置类
+            // TODO @升平：看看有没可能去掉下面两个类
             JoinInterceptor.class, // MyBatis 的Join配置类
             JoinInterceptorConfig.class, // MyBatis 的Join配置类
     })