springboot 全局 Date参数接收 String格式转换异常报错

超、凢脫俗 2023-09-23 21:17 61阅读 0赞

报错：

> .w.s.m.s.DefaultHandlerExceptionResolver : Resolved \[org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type \`java.util.Date\` from String "2022-12-13 11:22:11": not a valid representation (error: Failed to parse Date value '2022-12-13 11:22:11': Cannot parse date "2022-12-13 11:22:11": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSX', parsing fails (leniency? null)); nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type \`java.util.Date\` from String "2022-12-13 11:22:11": not a valid representation (error: Failed to parse Date value '2022-12-13 11:22:11': Cannot parse date "2022-12-13 11:22:11": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSX', parsing fails (leniency? null))<EOL> at \[Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 4, column: 14\] (through reference chain: com.example.doatest.pojo.Car\["createDate"\])\]  
>

原因：  
json序列化 类没对上， 参数接收用的Date ,传参拿到是 String 。需要做个转换。

场景：  
接收参数是 Date类型

![efff4c43d83d4eb7b1ce684d4452a669.png][]

![90931b7c57d34c49891f04ffd85df3a5.png][]

传参是 String格式 ：

![7e3db5a410674dc5bf9cb78094d02ea6.png][]

这个其实已经是很久很久很久之前就已经做过解决方案介绍了：

[Springboot 全局日期格式化，只需要几行小代码\_小目标青年的博客-CSDN博客\_spring 日期格式][Springboot _-CSDN_spring]

我还是推荐 yml配置的方案 ：

>     #时区，默认为格林尼治时间，即少8小时，所以我们需要+8
>     spring.jackson.time-zone=GMT+8
>     #时间格式转换定义
>     spring.jackson.date-format=yyyy-MM-dd HH:mm:ss

![f7b0ca8a29a64833b8e9a25a21a5e2a4.png][]

轻松搞掂：  
  
![34f84c22cb6b40a08b060e06eb003d51.png][]

可能有人就是执拗啊，就是不想写配置，就是喜欢写代码， 然后又要全局生效转换，那怎么办？

也很好办，复制粘贴代码送给你：

import com.fasterxml.jackson.databind.ObjectMapper;
    import com.fasterxml.jackson.databind.module.SimpleModule;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.http.converter.HttpMessageConverter;
    import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    import java.text.SimpleDateFormat;
    import java.util.List;
    
    /**
     * @Author: JCccc
     * @Date: 2022-4-11 18:45
     * @Description:
     */
    @Configuration
    public class MyWebMvcConfigurer implements WebMvcConfigurer {
    
        @Override
        public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
            MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
            ObjectMapper objectMapper = jackson2HttpMessageConverter.getObjectMapper();
            objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
            SimpleModule simpleModule = new SimpleModule();
            objectMapper.registerModule(simpleModule);
            jackson2HttpMessageConverter.setObjectMapper(objectMapper);
            converters.add(0, jackson2HttpMessageConverter);
        }
        
    }

直接把这个类丢到你的项目里面：  
![2dc403073a264bd8afada3a70767276e.png][]

轻松解决：  
![fc2dd677ba234da7bee2e8dc7b729fa6.png][]

[efff4c43d83d4eb7b1ce684d4452a669.png]: https://img-blog.csdnimg.cn/efff4c43d83d4eb7b1ce684d4452a669.png
[90931b7c57d34c49891f04ffd85df3a5.png]: https://img-blog.csdnimg.cn/90931b7c57d34c49891f04ffd85df3a5.png
[7e3db5a410674dc5bf9cb78094d02ea6.png]: https://img-blog.csdnimg.cn/7e3db5a410674dc5bf9cb78094d02ea6.png
[Springboot _-CSDN_spring]: https://blog.csdn.net/qq_35387940/article/details/107249735
[f7b0ca8a29a64833b8e9a25a21a5e2a4.png]: https://img-blog.csdnimg.cn/f7b0ca8a29a64833b8e9a25a21a5e2a4.png
[34f84c22cb6b40a08b060e06eb003d51.png]: https://img-blog.csdnimg.cn/34f84c22cb6b40a08b060e06eb003d51.png
[2dc403073a264bd8afada3a70767276e.png]: https://img-blog.csdnimg.cn/2dc403073a264bd8afada3a70767276e.png
[fc2dd677ba234da7bee2e8dc7b729fa6.png]: https://img-blog.csdnimg.cn/fc2dd677ba234da7bee2e8dc7b729fa6.png