init: UserBaseService Spring Boot backend

src/main/java/com/yunhai/userbase/common/converter/GenderEnumConverter.java

@@ -0,0 +1,18 @@
+package com.yunhai.userbase.common.converter;
+
+import com.yunhai.userbase.enums.GenderEnum;
+
+import javax.persistence.AttributeConverter;
+
+/**
+ * GenderEnum 专用 JPA 转换器（int &lt;-&gt; 枚举）。<br>
+ * 继承通用基类 CommonIntEnumConverter，仅在构造器绑定枚举 class 即可。
+ *
+ * @author chenx
+ */
+public class GenderEnumConverter extends CommonIntEnumConverter<GenderEnum> {
+
+    public GenderEnumConverter() {
+        super(GenderEnum.class);
+    }
+}