diff --git a/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java b/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java
index 4320ebf..431adcb 100644
--- a/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java
+++ b/springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java
@@ -1,10 +1,7 @@
 package com.inmind.mapper;
 
 import com.inmind.pojo.Emp;
-import org.apache.ibatis.annotations.Delete;
-import org.apache.ibatis.annotations.Insert;
-import org.apache.ibatis.annotations.Mapper;
-import org.apache.ibatis.annotations.Options;
+import org.apache.ibatis.annotations.*;
 
 @Mapper
 public interface EmpMapper {
@@ -26,4 +23,13 @@ public interface EmpMapper {
     @Insert("insert into emp (username, name, gender, image, job, entrydate, dept_id, create_time, update_time)" +
             "values (#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
     public void insert(Emp emp);
+
+/*
+update emp set username = '11', name = '22', gender = 1, image = '1.jpg', job = 2
+             , entrydate = '2008-01-01', dept_id = 1,update_time = now() where id = 21
+ */
+    //更新员工
+    @Update("update emp set username = #{username}, name = #{name}, gender = #{gender}, image = #{image}, job = #{job}" +
+            ", entrydate = #{entrydate}, dept_id = #{deptId},update_time = #{updateTime} where id = #{id}")
+    public void update(Emp emp);
 }
diff --git a/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java b/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java
index 7d33f76..3a53d6d 100644
--- a/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java
+++ b/springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java
@@ -40,4 +40,20 @@ class SpringbootMybatisCrudApplicationTests {
         System.out.println(emp);
         System.out.println("主键id:"+emp.getId());
     }
+
+
+    @Test
+    void testUpdate(){
+        Emp emp = new Emp();
+        emp.setId(21);
+        emp.setUsername("ls3");
+        emp.setName("李四3");
+        emp.setGender((short) 1);
+        emp.setImage("1.jpg");
+        emp.setJob((short) 1);
+        emp.setEntrydate(LocalDate.of(2015,1,1));
+        emp.setDeptId(1);
+        emp.setUpdateTime(LocalDateTime.now());
+        empMapper.update(emp);
+    }
 }