SpringMVC 文件上传 详解
SpringMVC 为文件上传提供直接支持，通过 MultipartResolver 实现
配置 MultipartResolver，在 spring-mvc.xml 文件中
<!-- 文件上传 -->
<bean
id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:defaultEncoding="UTF-8"
p:maxUploadSize="104857600"
p:maxInMemorySize="4096"
p:uploadTempDir="upload/temp"/>
在 Controller 中
RequestMapping(value =
"/uploadPage")
public
String updatePage() {
return "uploadPage";
}
@RequestMapping(value =
"/upload")
public
String updateThumb(@RequestParam("name") String name, @RequestParam("file")
MultipartFile file) throws
Exception {
if (!file.isEmpty()) {
file.transferTo(new
File("d:/temp/"
+ file.getOriginalFilename()));// 将上传文件保存到一个目标文件中
return "redirect:success.html";
}
else {
return "redirect:fail.html";
}
}
在 uploadPage.jsp 中
<%@
page
language="java"
contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<html>
<head>
<title>请上传用户头像</title>
</head>
<body>
<h1>请选择上传的头像文件</h1>
<form
method="post"
action="<c:url
value="/user/upload.html"/>"
enctype="multipart/form-data">
<input
type="text"
name="name"
/>
<input
type="file"
name="file"
/>
<input
type="submit"
/>
</form>
</body>
</html>
MultipartFile 常用方法