MybatisPlus中@TableLogic注解的使用实现

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>最新版本</version>
</dependency>

import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableLogic;
import com.baomidou.mybatisplus.annotation.TableName;
import java.io.Serializable;

@TableName("user")
public class User implements Serializable {

    private static final long serialVersionUID = 1L;

    private Long id;
    private String name;
    private Integer age;

    @TableLogic
    @TableField("is_deleted") // 数据库中的字段名
    private Integer deleted; // 标记字段，0表示未删除，1表示已删除

    // 省略 getters 和 setters

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public Integer getDeleted() {
        return deleted;
    }

    public void setDeleted(Integer deleted) {
        this.deleted = deleted;
    }
}

@Autowired
private UserMapper userMapper;

public void deleteUser(Long id) {
    userMapper.deleteById(id); // 这会将 `deleted` 字段设置为 1
}

public void restoreUser(Long id) {
    User user = userMapper.selectById(id);
    if (user != null) {
        user.setDeleted(0); // 设置为0表示未删除
        userMapper.updateById(user);
    }
}