mybatis-plus IdWorker生成的Id和返回给前台的不一致的解决

package net.mshome.twisted.tmall.entity;

import com.baomidou.mybatisplus.annotation.FieldFill;

import com.baomidou.mybatisplus.annotation.IdType;

import com.baomidou.mybatisplus.annotation.TableField;

import com.baomidou.mybatisplus.annotation.TableId;

import lombok.AllArgsConstructor;

import lombok.Data;

import lombok.NoArgsConstructor;

import java.io.Serializable;

import java.time.LocalDateTime;

/**

  * 数据库实体类的父类，必需字段

  *

  * @author tangjizhouchn@foxmail测试数据

  * @date 2019/9/6

  */

@Data

@NoArgsConstructor

@AllArgsConstructor

public class BaseEntity implements Serializable {

   private static final long serialVersionUID = 236424297319280526L;

   /**

    * 数据表主键，此处采用mybatis-plus自带的IdType.ID_WORKER策略

    */

   @TableId (value = "id" , type = IdType.ID_WORKER)

   protected Long id;

   /**

    * 数据创建时间

    */

   @TableField (fill = FieldFill.INSERT)

   protected LocalDateTime createTime;

   /**

    * 数据更新时间

    */

   @TableField (fill = FieldFill.INSERT_UPDATE)

   protected LocalDateTime updateTime;

}

package net.mshome.twisted.tmall.entity;

import com.baomidou.mybatisplus.annotation.FieldFill;

import com.baomidou.mybatisplus.annotation.IdType;

import com.baomidou.mybatisplus.annotation.TableField;

import com.baomidou.mybatisplus.annotation.TableId;

import com.fasterxml.jackson.databind.annotation.JsonSerialize;

import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;

import lombok.AllArgsConstructor;

import lombok.Data;

import lombok.NoArgsConstructor;

import java.io.Serializable;

import java.time.LocalDateTime;

/**

  * 数据库实体类的父类，必需字段

  *

  * @author tangjizhouchn@foxmail测试数据

  * @date 2019/9/6

  */

@Data

@NoArgsConstructor

@AllArgsConstructor

public class BaseEntity implements Serializable {

   private static final long serialVersionUID = 236424297319280522L;

   /**

    * 数据表主键

    */

   @TableId (value = "id" , type = IdType.ID_WORKER)

   @JsonSerialize (using = ToStringSerializer. class )

   protected Long id;

   /**

    * 数据创建时间

    */

   @TableField (fill = FieldFill.INSERT)

   protected LocalDateTime createTime;

   /**

    * 数据更新时间

    */

   @TableField (fill = FieldFill.INSERT_UPDATE)

   protected LocalDateTime updateTime;

}

package net.mshome.twisted.tmall.configuration;

import com.fasterxml.jackson.databind.ObjectMapper;

import com.fasterxml.jackson.databind.module.SimpleModule;

import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;

import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;

import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;

import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;

import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

import java.time.LocalDate;

import java.time.LocalDateTime;

import java.time.format.DateTimeFormatter;

/**

  * 系统通用简单配置

  *

  * @author tangjizhouchn@foxmail测试数据

  * @date 2019/10/16

  */

@Configuration

public class TmallConfiguration {

   /**

    * 方式一：此方式可以灵活配置任意类型的序列化反序列化

    */

   @Bean

   public Jackson2ObjectMapperBuilderCustomizer builderCustomizer() {

     DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern( "yyyy-MM-dd" );

     DateTimeFormatter dateTimeSerializeFormatter = DateTimeFormatter.ofPattern( "yyyy-MM-dd HH:mm:ss" );

     DateTimeFormatter dateTimeDeserializeFormatter = DateTimeFormatter.ofPattern( "yyyy-MM-dd HH:mm" );

     return builder -> {

       // 所有Long类型转换成String到前台

       builder.serializerByType(Long. class , ToStringSerializer.instance);

       builder.serializerByType(LocalDate. class , new LocalDateSerializer(dateFormatter));

       builder.serializerByType(LocalDateTime. class , new LocalDateTimeSerializer(dateTimeSerializeFormatter));

       builder.deserializerByType(LocalDateTime. class , new LocalDateTimeDeserializer(dateTimeDeserializeFormatter));

     };

   }

   /**

    *

    * 方式二：采用objectMapper注入

    */

   @Bean

   public ObjectMapper objectMapper (Jackson2ObjectMapperBuilder builder) {

     ObjectMapper objectMapper = builder.createXmlMapper( false ).build();

     SimpleModule simpleModule = new SimpleModule();

     // 直接将所有的Long类型转换为String

     simpleModule.addSerializer(Long. class , ToStringSerializer.instance);

     simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);

     objectMapper.registerModule(simpleModule);

     return objectMapper;

   }

}