add h2 and save user info to db

src/main/java/com/xuxd/kafka/console/dao/KafkaUserMapper.java

@@ -0,0 +1,15 @@
+package com.xuxd.kafka.console.dao;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.xuxd.kafka.console.beans.dos.KafkaUserDO;
+
+/**
+ * kafka-console-ui.
+ *
+ * @author xuxd
+ * @date 2021-09-06 15:12:19
+ **/
+public interface KafkaUserMapper extends BaseMapper<KafkaUserDO> {
+
+
+}