Redis-黑马点评项目-01-postman测试-时间戳-localDate序列化问题

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已于 2025-05-21 20:38:37 修改

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分类专栏： Redis 文章标签： redis postman 数据库

于 2025-05-19 17:02:54 首次发布

本文链接：https://blog.youkuaiyun.com/csdn_l_z/article/details/148068239

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1、遇到的问题

安装postman后发送请求地址和请求体中，采用 RestFul 风格,修改采用put
Body：

{
 "area":"大关",
"openHours":"10:00-22:00",
"sold":4215,
"images":"https://qcloud.dpfile.com/pc/jiclIsCKmOI2arxKN1Uf0Hx3PucIJH8q0QSz-Z8llzcN56-_QiKuOvyio1OOxsRtFoXqu0G3iT2T27qat3WhLVEuLYk00OmSS1IdNpm8K8sG4JN9RIm2mTKcbLtc2o2vfCF2ubeXzk49OsGrXt_KYDCngOyCwZK-s3fqawWswzk.jpg,https://qcloud.dpfile.com/pc/IOf6VX3qaBgFXFVgp75w-KKJmWZjFc8GXDU8g9bQC6YGCpAmG00QbfT4vCCBj7njuzFvxlbkWx5uwqY2qcjixFEuLYk00OmSS1IdNpm8K8sG4JN9RIm2mTKcbLtc2o2vmIU_8ZGOT1OjpJmLxG6urQ.jpg",
"address":"金华路锦昌文华苑29号",
"comments":3035,"avgPrice":80,
"updateTime":1642066339000,
"score":37,
"createTime":1640167839000,
"name":"102茶餐厅",
"x":120.149192,
"y":30.316078,
"typeId":1,
"id":1}

在这里插入图片描述
IDEA报错：
2025-05-19 16:19:14.191 ERROR 15912 — [nio-8081-exec-7] com.hmdp.config.WebExceptionAdvice : org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: raw timestamp (1642066339000) not allowed for java.time.LocalDateTime: need additional information such as an offset or time-zone (see class Javadocs); nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: raw timestamp (1642066339000) not allowed for java.time.LocalDateTime: need additional information such as an offset or time-zone (see class Javadocs)
at [Source: (PushbackInputStream); line: 8, column: 14] (through reference chain: com.hmdp.entity.Shop[“updateTime”])

在这里插入图片描述
原来是Jackson无法将时间戳转换为LocalDateTime 类型数据。

2、修改如下

2.1 pom.xml文件增加配置依赖：

    <!--解析前端传来的json 时间戳串 序列化为 LocalDateTime-->
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-jsr310</artifactId>
        </dependency>

2.2 增加配置类

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

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

@Configuration
public class JacksonConfig {

    @Bean
    public ObjectMapper objectMapper() {
        ObjectMapper mapper = new ObjectMapper();

        // 注册 Java 8 时间模块，支持 LocalDateTime 等
        JavaTimeModule module = new JavaTimeModule();

        // 添加自定义的 LocalDateTime 反序列化器（把时间戳转为 LocalDateTime）
        module.addDeserializer(LocalDateTime.class, new JsonDeserializer<LocalDateTime>() {
            @Override
            public LocalDateTime deserialize(JsonParser p, DeserializationContext ctxt)
                    throws IOException {
                // 从 JSON 中读取时间戳（毫秒值）
                long timestamp = p.getLongValue();

                // 转为 LocalDateTime（使用系统默认时区）
                return LocalDateTime.ofInstant(Instant.ofEpochMilli(timestamp), ZoneId.systemDefault());
            }
        });

        // 注册模块
        mapper.registerModule(module);

        return mapper;
    }
}