Spring-MVC上传文件出现错误

最新推荐文章于 2024-04-22 17:04:59 发布

原创最新推荐文章于 2024-04-22 17:04:59 发布 · 657 阅读

0 ·

CC 4.0 BY-SA版权

Spring 专栏收录该内容

9 篇文章

订阅专栏

本文详细解析了在Spring框架中处理文件上传时遇到的MultipartFile参数缺失异常问题。通过对比代码与HTML表单，发现name属性不一致导致的问题，并提供了正确的修改方案。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

一、问题描述

Resolving exception from handler [public java.lang.String com.online.education.opt.controller.CourseSectionController.doImport(java.lang.Long,org.springframework.web.multipart.MultipartFile)]: org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'courseSectionExcel' is not present
 [04/12 17:53] Resolving exception from handler [public java.lang.String com.online.education.opt.controller.CourseSectionController.doImport(java.lang.Long,org.springframework.web.multipart.MultipartFile)]: org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'courseSectionExcel' is not present
 [04/12 17:53] Resolving exception from handler [public java.lang.String com.online.education.opt.controller.CourseSectionController.doImport(java.lang.Long,org.springframework.web.multipart.MultipartFile)]: org.springframework.web.bind.MissingServletRequestParameterException: Required MultipartFile parameter 'courseSectionExcel' is not present
 [04/12 17:53] Null ModelAndView returned to DispatcherServlet with name 'app-servlet': assuming HandlerAdapter completed request handling
 [04/12 17:53] Cleaning up multipart file [file] with original filename [导入课程章节模板.xlsx], stored in memory
 [04/12 17:53]

二、问题解决

1、

有的说 true改成false，但这是掩耳盗铃

public String doImport(Long courseId,
			@RequestParam(value = "courseSectionExcel", required = true) MultipartFile excelFile) {
}

2、name值与value值不同

<div class="layui-input-block">
		<input type="file"  name="file" id="courseSectionExcel" name="courseSectionExcel"  "fileChange();">
</div>

两个name去掉前面那个。