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【知了堂学习笔记】_springMVC_文件上传_错误_Required CommonsMultipartFile parameter 'file' is not present

2017-11-23 16:29 871 查看
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今天的学习了文件上传出现了:

Required CommonsMultipartFile parameter ‘file’ is not present

开始一直以为是@RequestParm(“file”)参数的传递问题:

public void singleFlieUpload(@RequestParam("file") CommonsMultipartFile commonsMultipartFile, HttpServletRequest request, HttpServletResponse response) {
...}


<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

<form action="/ssm/upload/singlefileupload.do" method="post" enctype="multipart/form-data">
<input type="file" name="file"><input type="submit">
</form>

</body>
</html>


粘贴复制很多遍以后发现,还是不行,百度之后,得到灵感

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:maxUploadSize="5242880"
p:maxInMemorySize="4096"
p:defaultEncoding="UTF-8">

</bean>


配置文件中的id是不能随便更改的,必须是multipartResolver

以此记录!!
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标签:  spring mvc
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