MybatisPlus中insert方法与insertAllColumn方法的区别

左手的ㄟ右手 2023-10-18 17:25 16阅读 0赞

## 场景 ##

项目搭建专栏：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/column/info/37194][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_column_info_37194]

## 实现 ##

insert方法在插入时，会根据实体类的每个属性进行非空判断，只有非空的属性所对应的字段才会出现在SQL语句中。

insertAllColumn方法在插入时，不管属性是否为空，属性所对应的字段都会出现在

SQL语句中。

测试insert插入语句：

/***
      * 测试insert
      */
     @Test
     public void testInsert() {
      Employee employee = new Employee();
      employee.setName("insert测试");
      employee.setAge(23);
      int result = employeeMapper.insert(employee);
      System.out.println("************************"+result);
      Integer id = employee.getId();
      System.out.println("*********************"+id);
     }

结果：

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

测试insertAllColumn插入：

/***
      * 测试insertAllColumn
      */
     @Test
     public void testInsertAllColumn() {
      Employee employee = new Employee();
      employee.setName("insertAllColumn测试");
      employee.setAge(23);
      int result = employeeMapper.insertAllColumn(employee);
      System.out.println("************************"+result);
      Integer id = employee.getId();
      System.out.println("*********************"+id);
     }

结果：

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

数据库中对比效果：

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 2][]

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_column_info_37194]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/column/info/37194
[Image 1]: 
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