LocalDateTime与String日期之间序列化问题

前端请求json格式入参，日期字符串反序列化为LocalDateTime类型

package cn.abc.com.util;

import cn.hutool.core.util.StrUtil;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;


public class LocalDateTimeDeserializer extends JsonDeserializer {

    private static final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");

    @Override
    public LocalDateTime deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {

        String dateStr = jsonParser.getText();
        if (StrUtil.isNotBlank(dateStr)) {
            return LocalDateTime.parse(dateStr, dateTimeFormatter);
        }
        return null;
    }
}

后端LocalDateTime类型序列化为日期字符串

package cn.abc.com.util;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.time.LocalDateTime;


public class LocalDateTimeSerializer extends JsonSerializer {

    @Override
    public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException, JsonProcessingException {
        gen.writeString(value.toString());
    }
}

 对象属性上加注解

import cn.abc.com.util.LocalDateTimeDeserializer;
import cn.abc.com.util.LocalDateTimeSerializer;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;    


    @JsonSerialize(using = LocalDateTimeSerializer.class)
    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
    private LocalDateTime createTime;