diff --git a/src/main/resources/mapping/ItemDOMapper.xml b/src/main/resources/mapping/ItemDOMapper.xml
index 215f6ef..ef23c51 100644
--- a/src/main/resources/mapping/ItemDOMapper.xml
+++ b/src/main/resources/mapping/ItemDOMapper.xml
@@ -42,7 +42,7 @@
     delete from item_info
     where id = #{id,jdbcType=INTEGER}
   </delete>
-  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemDO">
+  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemDO" useGeneratedKeys="true" keyProperty="id">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
@@ -55,7 +55,7 @@
       #{description,jdbcType=VARCHAR}, #{sales,jdbcType=INTEGER}, #{imgUrl,jdbcType=VARCHAR}
       )
   </insert>
-  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemDO">
+  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemDO" useGeneratedKeys="true" keyProperty="id">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
diff --git a/src/main/resources/mapping/ItemStockDOMapper.xml b/src/main/resources/mapping/ItemStockDOMapper.xml
index b083cb6..d1008f0 100644
--- a/src/main/resources/mapping/ItemStockDOMapper.xml
+++ b/src/main/resources/mapping/ItemStockDOMapper.xml
@@ -39,7 +39,7 @@
     delete from item_stock
     where id = #{id,jdbcType=INTEGER}
   </delete>
-  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemStockDO">
+  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemStockDO" useGeneratedKeys="true" keyProperty="id">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
@@ -50,7 +50,7 @@
     values (#{id,jdbcType=INTEGER}, #{stock,jdbcType=INTEGER}, #{itemId,jdbcType=INTEGER}
       )
   </insert>
-  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemStockDO">
+  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.ItemStockDO" useGeneratedKeys="true" keyProperty="id">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
diff --git a/src/main/resources/mapping/UserDOMapper.xml b/src/main/resources/mapping/UserDOMapper.xml
index ddf366c..8eda3cf 100644
--- a/src/main/resources/mapping/UserDOMapper.xml
+++ b/src/main/resources/mapping/UserDOMapper.xml
@@ -43,7 +43,7 @@
     delete from user_info
     where id = #{id,jdbcType=INTEGER}
   </delete>
-  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.UserDO">
+  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.UserDO" keyProperty="id" useGeneratedKeys="true">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
@@ -56,7 +56,7 @@
       #{age,jdbcType=INTEGER}, #{telephone,jdbcType=VARCHAR}, #{registerMode,jdbcType=VARCHAR}, 
       #{thirdPartyId,jdbcType=VARCHAR})
   </insert>
-  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.UserDO">
+  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.UserDO" keyProperty="id" useGeneratedKeys="true">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
diff --git a/src/main/resources/mapping/UserPasswordDOMapper.xml b/src/main/resources/mapping/UserPasswordDOMapper.xml
index 3608fdf..4adbc84 100644
--- a/src/main/resources/mapping/UserPasswordDOMapper.xml
+++ b/src/main/resources/mapping/UserPasswordDOMapper.xml
@@ -39,7 +39,7 @@
     delete from user_password
     where id = #{id,jdbcType=INTEGER}
   </delete>
-  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.UserPasswordDO">
+  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.UserPasswordDO" keyProperty="id" useGeneratedKeys="true">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
@@ -50,7 +50,7 @@
     values (#{id,jdbcType=INTEGER}, #{encryptPassword,jdbcType=VARCHAR}, #{userId,jdbcType=INTEGER}
       )
   </insert>
-  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.UserPasswordDO">
+  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.UserPasswordDO" keyProperty="id" useGeneratedKeys="true">
     <!--
       WARNING - @mbg.generated
       This element is automatically generated by MyBatis Generator, do not modify.
diff --git a/src/main/resources/mybatis-generator.xml b/src/main/resources/mybatis-generator.xml
index 56bab23..34248a1 100644
--- a/src/main/resources/mybatis-generator.xml
+++ b/src/main/resources/mybatis-generator.xml
@@ -41,18 +41,18 @@
         <!--selectByExampleQueryId="false"-->
 
         <!-- 生成对应表及其类名 -->
-        <table tableName="user_info" domainObjectName="UserDO" enableCountByExample="false"
-               enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
-               selectByExampleQueryId="false"></table>
-        <table tableName="user_password" domainObjectName="UserPasswordDO" enableCountByExample="false"
-               enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
-               selectByExampleQueryId="false"></table>
-        <table tableName="item_info" domainObjectName="ItemDO" enableCountByExample="false"
-               enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
-               selectByExampleQueryId="false"></table>
-        <table tableName="item_stock" domainObjectName="ItemStockDO" enableCountByExample="false"
-               enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
-               selectByExampleQueryId="false"></table>
+        <!--<table tableName="user_info" domainObjectName="UserDO" enableCountByExample="false"-->
+        <!--       enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
+        <!--       selectByExampleQueryId="false"></table>-->
+        <!--<table tableName="user_password" domainObjectName="UserPasswordDO" enableCountByExample="false"-->
+        <!--       enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
+        <!--       selectByExampleQueryId="false"></table>-->
+        <!--<table tableName="item_info" domainObjectName="ItemDO" enableCountByExample="false"-->
+        <!--       enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
+        <!--       selectByExampleQueryId="false"></table>-->
+        <!--<table tableName="item_stock" domainObjectName="ItemStockDO" enableCountByExample="false"-->
+        <!--       enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
+        <!--       selectByExampleQueryId="false"></table>-->
 
     </context>
 </generatorConfiguration>
\ No newline at end of file