JAVA后端文件上传，包含图片，Excel，文档等_java 上传后缀图片 word excel-优快云博客

本文详细介绍了一个文件上传处理方法，包括获取上传路径、使用ServletFileUpload解析请求、处理文件乱码及将文件写入指定路径的过程。通过具体代码实现，展示了如何在Java Web应用中处理多部分请求数据。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

	/**处理各种文件上传*/
	public ActionForward fileUpload(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
					throws Exception {
		BaseUser user = (BaseUser) request.getSession().getAttribute("user");
		//获取上传路径
		String uploadPath = request.getSession().getServletContext().getRealPath("/") + File.separator + "upload";
		FileItemFactory factory = new DiskFileItemFactory();
		ServletFileUpload servletFileUpload = new ServletFileUpload(factory);
		servletFileUpload.setHeaderEncoding("UTF-8");// 解决文件名乱码的问题
		List<FileItem> fileItemsList = servletFileUpload.parseRequest(request);
		
		for (FileItem item : fileItemsList) {
			//判断该文件是否是普通的表单类型，该处是file类型进入判断
			if (!item.isFormField()) {
				//上传文件的名称
				String fileName = item.getName();
				uploadPath =uploadPath+"/"+fileName;
				File file = new File(uploadPath);
				item.write(file);
			}
		}
		Map root = new HashMap();
		String path="";
		super.goToFtl(path, root, request, response);
		return null;
	}