官方文档

https://baomidou.com/guide/logic-delete.html#%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95%EF%BC%9A (opens new window)

步骤1:

配置com.baomidou.mybatisplus.core.config.GlobalConfig$DbConfig

• 例: application.yml

mybatis-plus:
  global-config:
    db-config:
      logic-delete-field: flag  # 全局逻辑删除的实体字段名(since 3.3.0,配置后可以忽略不配置步骤2)
      logic-delete-value: 1 # 逻辑已删除值(默认为 1)
      logic-not-delete-value: 0 # 逻辑未删除值(默认为 0)

步骤2:

实体类字段上加上@TableLogic注解

@TableLogic
private Integer deleted;

如果某张表，逻辑删除跟该微服务的全局逻辑删除配置相反，还可以自定义。

源码：

/*
 * Copyright (c) 2011-2020, baomidou (jobob@qq.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.baomidou.mybatisplus.annotation;

import java.lang.annotation.*;

/**
 * 表字段逻辑处理注解（逻辑删除）
 *
 * @author hubin
 * @since 2017-09-09
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.ANNOTATION_TYPE})
public @interface TableLogic {

    /**
     * 默认逻辑未删除值（该值可无、会自动获取全局配置）
     */
    String value() default "";

    /**
     * 默认逻辑删除值（该值可无、会自动获取全局配置）
     */
    String delval() default "";
}

也就是说，问只需要在字段上指明已删除和未删除的值

/**
  * 是否显示[0-不显示，1显示] 
  */
@TableLogic(delval = "0",value = "1")
private Integer showStatus;