本地文件上传

朱雀 2022-03-28 15:15 265阅读 0赞

文件上传代码：

/**
    	 * 
    	 * @Title: uploadFile
    	 * @Description: 文件上传
    	 * @param path 文件保存的路径，例：D:/upload/20101010/test.txt
    	 * @param fileInputStream 
    	 * @return boolean 
    	 * @throws IOException 
    	 *
    	 */
    	public synchronized boolean uploadFile(String path,InputStream fileInputStream) throws IOException{
    		boolean result = false;
    		if(path!=null && path!=""){
    			FileOutputStream fos = null;
    			BufferedOutputStream bos = null;
    			BufferedInputStream bis = null;
    			try {
                                    path = path.replaceAll("//","/");
    				String dirs[] = path.split("/");
    				String diretoryUrl = dirs[0];
                                    //循环遍历路径的文件夹(除盘符外)，如果没有文件夹则创建
    				for(int i=1; i<dirs.length-1; i++){
    					diretoryUrl = diretoryUrl + "/" + dirs[i];
    					File fileTemp = new File(diretoryUrl);
    					if(!fileTemp.exists()){
    						fileTemp.mkdirs();
    					}
    				}
    				File file = new File(path);
    				file.createNewFile();
    				fos = new FileOutputStream(file);
    				bos = new BufferedOutputStream(fos);
    				bis = new BufferedInputStream(fileInputStream);
    				byte[] bytes = new byte[1024];
    				int len = 0;
    				while ((len = bis.read(bytes)) != -1) {
    					bos.write(bytes, 0, len);
    				}
    				result = true;
    			} catch (Exception e) {
    				e.printStackTrace();
    			} finally{
    				if(bis!=null){
    					bis.close();
    				}
    				if(bos!=null){
    					bos.close();
    				}
    				if(fos!=null){
    					fos.close();
    				}
    			}
    		}
    		return result;
    	}

文件下载：

@RequestMapping(value="download", method=RequestMethod.GET)
    	public void download(String fileUrl, HttpServletRequest request, HttpServletResponse response) throws Exception{
    		String path= SAVE_URL + fileUrl;
    		System.out.println(path);
    		File file = new File(path);
    		if (!file.isFile()){
    			throw new Exception("要下载或打开的文件不存在！");
    		}
            BufferedInputStream br = null;
            OutputStream out = null;
    		try {
    			String name = file.getName();
                String fileName = new String(name.getBytes("GBK"),"ISO8859-1");
                br = new BufferedInputStream(new FileInputStream(file));
                Integer size = br.available();
                byte[] buf = new byte[2048];
                response.reset();
    			response.addHeader("Content-Disposition", "attachment;filename="  + fileName);
                response.setContentType("application/octet-stream; charset=utf-8");
                response.addHeader("Content-Length", "" + size);
                out = response.getOutputStream();
                int len = 0;
                while ((len = br.read(buf)) != -1) {
                    out.write(buf, 0, len);
                }
    		} catch (Exception e){
    			e.printStackTrace();
    		} finally {
                if (br != null){
                    br.close();
                }
                if (out != null){
                    out.close();
                }
            }
    	}