前台页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>文件上传</title>
</head>
<body>
<br>
<div>
<form action="file.do" method="post" enctype="multipart/form-data" >
<h4><strong>文件上传：</strong> </h4>
<br>
<input style="width: 350px;float: left" type="file" name="file">
<input type="submit" value="提交">
</form>
</div>
</body>
</html>
框架是springMVC
后台代码
@RequestMapping({ "/file.do" })
public ModelAndView file(HttpServletRequest request, HttpServletResponse response) {
ModelAndView mv = new ModelAndView();
boolean isMutipart = ServletFileUpload.isMultipartContent(request);
if (!isMutipart) {
String error="未检测到导入的文件";
mv.addObject("error",error);
mv.setViewName("result.jsp");
}
//解析请求，将文件信息放到迭代器里
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
Iterator<String> iter = multiRequest.getFileNames();
//迭代文件，存放到某一路径里
while (iter.hasNext()) {
try {
//取得上传文件
MultipartFile file = multiRequest.getFile(iter.next());
//创建DiskFileItemFactory对象
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(1024*1024*100);
factory.setRepository(new File("C:\\tmp\\"));
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setSizeMax(200000000);
//设置本地文件路径
File newFile = new File("C:\\tmp\\"+file.getOriginalFilename());
//保存到本地
file.transferTo(newFile);
newFile.createNewFile();
//最后用完之后删除
newFile.delete();
} catch (Exception e1) {
e1.printStackTrace();
}
return mv;
}
}