- pom.xml中添加依赖
<!-- 文件上传所依赖的jar包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
- application.properties中添加允许上传的最大值
#上传文件最大值
spring.servlet.multipart.max-file-size=100Mb
#单个请求的最大值
spring.servlet.multipart.max-request-size=100Mb
- 进行使用
@RequestMapping("/doUpload")
public String doUpload(HttpSession session, HttpServletRequest request) throws IOException {
long startTime = System.currentTimeMillis();
//获取存储app文件夹的路径
String appPath = session.getServletContext().getRealPath("/app");
File appRootDir = new File(appPath);
if (!appRootDir.exists()) {
System.out.println("存储app的文件夹不存在 appPath= " + appPath);
appRootDir.mkdirs();
} else {
System.out.println("存储app的文件夹存在 appPath= " + appPath);
}
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
if (multipartResolver.isMultipart(request)) {
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
Iterator<String> names = multiRequest.getFileNames();
while (names.hasNext()) {
MultipartFile file = multiRequest.getFile(names.next().toString());
if (file != null) {
File appFile = new File(appRootDir, file.getOriginalFilename());
file.transferTo(appFile);
}
}
}
long endTime = System.currentTimeMillis();
System.out.println("上传时间：" + String.valueOf(endTime - startTime) + "ms");
return "home";
}
}
