1.Spring-mybatis-新增实现-主键回显

springboot-mybatis-crud/src/main/java/com/inmind/mapper/EmpMapper.java

@@ -1,7 +1,10 @@
 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;
 
 @Mapper
 public interface EmpMapper {
@@ -16,4 +19,11 @@ public interface EmpMapper {
 //    public void delete(Integer id);
     @Delete("delete from  emp where id = #{id};")
     public int delete(Integer id);
+
+
+    //添加员工
+    @Options(useGeneratedKeys = true,keyProperty = "id")//获取自增长的主键值，赋值给参数Emp对象的id属性
+    @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);
 }

springboot-mybatis-crud/src/main/java/com/inmind/pojo/Emp.java

@@ -17,7 +17,7 @@ public class Emp {
     private String name;//姓名
     private Short gender;//性别 1:男 2：女
     private String image; //头像URL
-    private String job; // 职位 1:班主任 2:讲师 3:学工主管 4:教研主管 5:咨询师
+    private Short job; // 职位 1:班主任 2:讲师 3:学工主管 4:教研主管 5:咨询师
     private LocalDate entrydate; // 入职日期
     private Integer deptId; // 部门ID
     private LocalDateTime createTime;

springboot-mybatis-crud/src/test/java/com/inmind/SpringbootMybatisCrudApplicationTests.java

@@ -1,10 +1,14 @@
 package com.inmind;
 
 import com.inmind.mapper.EmpMapper;
+import com.inmind.pojo.Emp;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
 @SpringBootTest
 class SpringbootMybatisCrudApplicationTests {
     @Autowired
@@ -20,4 +24,20 @@ class SpringbootMybatisCrudApplicationTests {
         System.out.println(count);
     };
 
+    @Test
+    void testInsert(){
+        Emp emp = new Emp();
+        emp.setUsername("ls2");
+        emp.setName("李四2");
+        emp.setGender((short) 1);
+        emp.setImage("1.jpg");
+        emp.setJob((short) 1);
+        emp.setEntrydate(LocalDate.of(2005,1,1));
+        emp.setDeptId(1);
+        emp.setCreateTime(LocalDateTime.now());
+        emp.setUpdateTime(LocalDateTime.now());
+        empMapper.insert(emp);
+        System.out.println(emp);
+        System.out.println("主键id:"+emp.getId());
+    }
 }