diff --git a/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/domain/KeyTest.java b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/domain/KeyTest.java
new file mode 100644
index 0000000..7d11064
--- /dev/null
+++ b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/domain/KeyTest.java
@@ -0,0 +1,40 @@
+package com.wyl.springbootmybatis.mybatis.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import lombok.Data;
+
+/**
+ * 联合唯一索引更新测试
+ * @TableName key_test
+ */
+@TableName(value ="key_test")
+@Data
+public class KeyTest implements Serializable {
+    /**
+     * 
+     */
+    @TableId(value = "id", type = IdType.AUTO)
+    private Integer id;
+
+    /**
+     * 
+     */
+    @TableField(value = "sku_code")
+    private String skuCode;
+
+    /**
+     * 
+     */
+    @TableField(value = "w_code")
+    private String wCode;
+
+    @TableField(value = "data")
+    private String data;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}
\ No newline at end of file
diff --git a/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/mapper/KeyTestMapper.java b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/mapper/KeyTestMapper.java
new file mode 100644
index 0000000..068aa8c
--- /dev/null
+++ b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/mapper/KeyTestMapper.java
@@ -0,0 +1,23 @@
+package com.wyl.springbootmybatis.mybatis.mapper;
+
+import com.wyl.springbootmybatis.mybatis.domain.KeyTest;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+* @author wyl
+* @description 针对表【key_test(联合唯一索引更新测试)】的数据库操作Mapper
+* @createDate 2022-05-18 22:54:18
+* @Entity com.wyl.springbootmybatis.mybatis.domain.KeyTest
+*/
+public interface KeyTestMapper extends BaseMapper<KeyTest> {
+    void updateOrsave(@Param("sku_code")String sku_code,@Param("w_code")String w_code,@Param("data")String data);
+
+    void batchSaveOrUpdate(List<KeyTest>list);
+}
+
+
+
+
diff --git a/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/service/KeyTestService.java b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/service/KeyTestService.java
new file mode 100644
index 0000000..2979a4a
--- /dev/null
+++ b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/service/KeyTestService.java
@@ -0,0 +1,13 @@
+package com.wyl.springbootmybatis.mybatis.service;
+
+import com.wyl.springbootmybatis.mybatis.domain.KeyTest;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+* @author wyl
+* @description 针对表【key_test(联合唯一索引更新测试)】的数据库操作Service
+* @createDate 2022-05-18 22:54:18
+*/
+public interface KeyTestService extends IService<KeyTest> {
+
+}
diff --git a/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/service/impl/KeyTestServiceImpl.java b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/service/impl/KeyTestServiceImpl.java
new file mode 100644
index 0000000..c5d5a11
--- /dev/null
+++ b/spring-boot/spring-boot-mybatis/src/main/java/com/wyl/springbootmybatis/mybatis/service/impl/KeyTestServiceImpl.java
@@ -0,0 +1,22 @@
+package com.wyl.springbootmybatis.mybatis.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.wyl.springbootmybatis.mybatis.domain.KeyTest;
+import com.wyl.springbootmybatis.mybatis.service.KeyTestService;
+import com.wyl.springbootmybatis.mybatis.mapper.KeyTestMapper;
+import org.springframework.stereotype.Service;
+
+/**
+* @author wyl
+* @description 针对表【key_test(联合唯一索引更新测试)】的数据库操作Service实现
+* @createDate 2022-05-18 22:54:18
+*/
+@Service
+public class KeyTestServiceImpl extends ServiceImpl<KeyTestMapper, KeyTest>
+    implements KeyTestService{
+
+}
+
+
+
+
diff --git a/spring-boot/spring-boot-mybatis/src/main/resources/mapper/KeyTestMapper.xml b/spring-boot/spring-boot-mybatis/src/main/resources/mapper/KeyTestMapper.xml
new file mode 100644
index 0000000..d9b03d9
--- /dev/null
+++ b/spring-boot/spring-boot-mybatis/src/main/resources/mapper/KeyTestMapper.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.wyl.springbootmybatis.mybatis.mapper.KeyTestMapper">
+
+    <resultMap id="BaseResultMap" type="com.wyl.springbootmybatis.mybatis.domain.KeyTest">
+        <id property="id" column="id" jdbcType="INTEGER"/>
+        <result property="skuCode" column="sku_code" jdbcType="VARCHAR"/>
+        <result property="wCode" column="w_code" jdbcType="VARCHAR"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id
+        ,sku_code,w_code
+    </sql>
+    <update id="updateOrsave">
+        insert into key_test (key_test, w_code, data)
+        values (#{sku_code}, #{w_code}, #{data}) on duplicate key
+        update sku_code =#{sku_code},
+            w_code =#{w_code},
+            data =#{data}
+    </update>
+
+    <insert id="batchSaveOrUpdate" parameterType="java.util.List">
+        insert into key_test (
+        sku_code,
+        w_code,
+        data
+        )
+        values
+        <foreach collection="list" item="item" index="index" separator=",">
+             (
+            #{item.skuCode},
+            #{item.wCode},
+            #{item.data}
+            )
+        </foreach>
+        on duplicate key update
+        sku_code = VALUES (sku_code),
+        w_code = VALUES (w_code),
+        data = VALUES (data)
+    </insert>
+</mapper>