MybatisPlus更新时部分失败的问题解决

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>3.4.0</version>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.0</version>
        </dependency>

@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("dev_student") // 表名
public class Student {
    // 主键
    @TableId
    private String id;
    private String score;
    private String name;
    private Integer age;
    private Date creatTime;
    private String desc;
}

    @Test
    public void testUpdateById(){
        // 参数从前端传递,此处模拟获取
        Student student = new Student();
        student.setId("1111");
        student.setName("小明");
        student.setAge(18);
        student.setCreatTime(new Date());
        // 模拟前端更新 删除了备注信息
        student.setDesc("");
        // 模拟前端更新 将字段指为空传递
        student.setScore(null);
        studentMapper.updateById(student);
    }

mybatis-plus:
  global-config:
    db-config:
      update-strategy: IGNORED

@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("dev_student")
public class Student {
    @TableId
    private String id;
    private String score;
    private String name;
    private Integer age;
    private Date creatTime;
    // 更新时 忽略 不做判空和null校验
    @TableField(updateStrategy = FieldStrategy.IGNORED)
    private String desc;
}