Java Spring文件上传，Java文件上传，Java通用文件上传，

Java Spring文件上传，Java文件上传，Java通用文件上传，

Java Spring文件上传，Java文件上传，Java通用文件上传

 

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©Copyright 蕃薯耀 2018年9月20日

http://fanshuyao.iteye.com/

 

一、文件上传主代码：

/**
	 * 通用文件上传
	 * @param request HttpServletRequest
	 * @param dirPath String 文件的绝对目录（c:/a/b/）或者相对路径的目录（aa/bb/）
	 */
	public List<FileBean> uploadFile(HttpServletRequest request, String dirPath){
		List<FileBean> files = new ArrayList<FileBean>();
		try{
			CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
			if(commonsMultipartResolver.isMultipart(request)){
				//强制转换需要在xml配置文件上传解析bean：CommonsMultipartResolver，且bean的id必须是multipartResolver
				MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;
				@SuppressWarnings("unchecked")
				Iterator<String> fileNames =  multipartHttpServletRequest.getFileNames();
				
				logger.info("=====dirPath="+ dirPath);
				String defaultDir = "H:/scan/ghyw/";
				if(!StringUtils.isBlank(dirPath)){
					dirPath = dirPath.trim();
					if(dirPath.indexOf(":") > -1){
						defaultDir = dirPath;
					}else{
						defaultDir = defaultDir + dirPath;
					}
					String lastCode = defaultDir.substring(defaultDir.length() - 1);
					if(!"/".equals(lastCode)){
						defaultDir = defaultDir + "/";
					}
					File dir = new File(defaultDir);
					if(!dir.exists()){
						dir.mkdirs();
					}
				}
				logger.info("=====dirPath last="+ defaultDir);
				
				MultipartFile multipartFile = null;
				FileBean fileBean = null;
				
				while(fileNames.hasNext()){
					multipartFile = multipartHttpServletRequest.getFile(fileNames.next());
					String originalName = multipartFile.getOriginalFilename();
					if(!StringUtils.isBlank(originalName)){
						originalName = new String(originalName.getBytes(), "UTF-8");
					}
					
					fileBean = new FileBean();
					String uuid = UUID.randomUUID().toString().replaceAll("-", "");
					String suffix = originalName.substring(originalName.lastIndexOf("."));
					fileBean.setSuffix(suffix);
					
					fileBean.setFileName(uuid + suffix);
					fileBean.setOriginalName(originalName);
					fileBean.setFileSize(multipartFile.getSize()/1024 + "KB");
					fileBean.setFileType(multipartFile.getContentType());
					String absolutePath = defaultDir + uuid + suffix;
					fileBean.setAbsolutePath(absolutePath);
					FileCopyUtils.copy(multipartFile.getBytes(), new FileOutputStream(absolutePath));
					files.add(fileBean);
					logger.info("=====multipartFile file name = "+ originalName);
					logger.info("=====multipartFile file name last = "+ fileBean.getFileName());
				}
			}
		}catch(Exception e){
			e.printStackTrace();
			logger.info("=====上传文件发生错误：" + e.getMessage());
		}
		return files;
	}

 

 

二、文件上传属性Bean

public class FileBean {

	/**
	 * 文件名
	 */
	private String fileName;
	/**
	 * 原始文件名
	 */
	private String originalName;
	/**
	 * 文件大小
	 */
	private String fileSize;
	/**
	 * 文件类型
	 */
	private String fileType;
	/**
	 * 后缀
	 */
	private String suffix;
	/**
	 * 绝对路径
	 */
	private String absolutePath;
	
	public String getFileName() {
		return fileName;
	}
	public void setFileName(String fileName) {
		this.fileName = fileName;
	}
	public String getOriginalName() {
		return originalName;
	}
	public void setOriginalName(String originalName) {
		this.originalName = originalName;
	}
	public String getFileSize() {
		return fileSize;
	}
	public void setFileSize(String fileSize) {
		this.fileSize = fileSize;
	}
	public String getFileType() {
		return fileType;
	}
	public String getSuffix() {
		return suffix;
	}
	public void setSuffix(String suffix) {
		this.suffix = suffix;
	}
	public void setFileType(String fileType) {
		this.fileType = fileType;
	}
	public String getAbsolutePath() {
		return absolutePath;
	}
	public void setAbsolutePath(String absolutePath) {
		this.absolutePath = absolutePath;
	}
	
	
	
}

 

三、Action调用方法：

public void fileUpload(HttpServletRequest request, HttpServletResponse response){
	Map<String, Object> map = new HashMap<String, Object>();
	try{
		List<FileBean> fileBeans = this.uploadFile(request, request.getParameter("dirPath"));
		map.put("files", fileBeans);
		map.put("size", fileBeans == null ? 0: fileBeans.size());
	}catch (Exception e) {
		e.printStackTrace();
	}finally{
		try {
			writeJson(response, JsonUtils.toJson(map));
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

 

 Java通用文件下载地址：

http://fanshuyao.iteye.com/blog/2425604

 

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©Copyright 蕃薯耀 2018年9月20日

http://fanshuyao.iteye.com/