Mybatis-Plus自动填充更新操作相关字段的实现

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import hw.topevery.basis.runtime.UserRuntime;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;
import java.util.Objects;

/**
 * 更新相关字段处理器
 *
 * @author whw
 * @date 2020/1/3 16:41
 */
@Component
public class UpdateRelatedFieldsMetaHandler implements MetaObjectHandler {

  /**
   * 新增操作
   *
   * @param metaObject
   */
  @Override
  public void insertFill(MetaObject metaObject) {
    this.strictInsertFill(metaObject, "createId", String.class, getCurrentUserId());
    this.strictInsertFill(metaObject, "createTime", LocalDateTime.class, LocalDateTime.now());
    this.strictInsertFill(metaObject, "updateId", String.class, getCurrentUserId());
    this.strictInsertFill(metaObject, "updateTime", LocalDateTime.class, LocalDateTime.now());
  }

  /**
   * 更新操作
   *
   * @param metaObject
   */
  @Override
  public void updateFill(MetaObject metaObject) {
    this.strictUpdateFill(metaObject, "updateId", String.class, getCurrentUserId());
    this.strictUpdateFill(metaObject, "updateTime", LocalDateTime.class, LocalDateTime.now());
  }

  /**
   * 获取当前登录用户ID
   *
   * @return
   */
  private String getCurrentUserId() {
    return "当前登录用户ID";
  }
}

import com.baomidou.mybatisplus.core.config.GlobalConfig;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import hw.topevery.kunming.wapi.handler.UpdateRelatedFieldsMetaHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * Mybatis-Plus配置类
 *
 * @author whw
 * @date 2020/1/3 16:41
 */
@Configuration
public class MybatisPlusConfig {

  @Bean
  public GlobalConfig globalConfig() {
    GlobalConfig globalConfig = new GlobalConfig();
    globalConfig.setMetaObjectHandler(new UpdateRelatedFieldsMetaHandler());
    return globalConfig;
  }
}

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.TableField;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;

import java.io.Serializable;
import java.time.LocalDateTime;

/**
 * 基础实体类
 *
 * @author whw
 * @date 2020/1/3 17:37
 */
@Data
public class BaseEntity implements Serializable {

  private static final long serialVersionUID = 1L;

  @ApiModelProperty(value = "创建用户ID")
  @TableField(value = "c_create_id", fill = FieldFill.INSERT)
  private String createId;

  @ApiModelProperty(value = "创建时间")
  @TableField(value = "c_create_time", fill = FieldFill.INSERT)
  private LocalDateTime createTime;

  @ApiModelProperty(value = "更新用户ID")
  @TableField(value = "c_update_id", fill = FieldFill.INSERT_UPDATE)
  private String updateId;

  @ApiModelProperty(value = "更新时间")
  @TableField(value = "c_update_time", fill = FieldFill.INSERT_UPDATE)
  private LocalDateTime updateTime;
}