Spring mvc uploadifive 檔案上傳實踐（轉自 https //segmentfault com/a/
阿新 • • 發佈：2018-11-14
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1、前臺頁面： 引入js和css
全選複製放進筆記<link type="text/css" rel="stylesheet" href="<%=basePath%>static/js/uploadifive/uploadifive.css"
2、控制元件初始化：
全選複製放進筆記<script type="text/javascript"
3、body頁面內容：
全選複製放進筆記<div id="uploadqueue"><input id="file_upload" name="file_upload" type="file" multiple="true"><a href="javascript:$('#file_upload').uploadifive('upload')">上傳檔案</a> | <a href="javascript:$('#file_upload').uploadifive('stop')">停止上傳!</a></div>
4、後臺Controller:
全選複製放進筆記@RequestMapping(value = "/uploadfiles") @ResponseBody public JSONArray uploadFile(HttpServletRequest request){ Calendar calendar=Calendar.getInstance(); List<String> filePathList = new ArrayList<String>(); String filePath= SysConstant.UPLOADPATH; String filePathUrl=SysConstant.UPLOADPATHURL+"/"+calendar.get(Calendar.YEAR)+calendar.get(Calendar.MONTH); filePath=filePath+File.separatorChar+calendar.get(Calendar.YEAR)+calendar.get(Calendar.MONTH); try { filePathList = FileUploadUtil.uploadFile(request, filePath,filePathUrl); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch(Exception ex){ ex.printStackTrace(); } if(filePathList.size() == 0){ //return "系統錯誤"; } return JSONArray.fromObject(filePathList); }
5、上傳類FileUploadUtil.java
全選複製放進筆記
public class FileUploadUtil { private static final Logger log = LoggerFactory.getLogger(FileUploadUtil.class); public static List<String> uploadFile(HttpServletRequest request, String filePath,String filePathUrl) throws FileNotFoundException { List<String> filePathList = new ArrayList<String>(); MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; Map<String, MultipartFile> fileMap = multipartRequest.getFileMap(); String fileName = null; for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) { MultipartFile mf = entity.getValue(); fileName = mf.getOriginalFilename(); String newfilepath; newfilepath = filePath + File.separatorChar + fileName; System.out.println("newfilepath=" + newfilepath); File dest = new File(filePath); if (!dest.exists()) { dest.mkdirs(); } File uploadFile = new File(newfilepath); if (uploadFile.exists()) { uploadFile.delete(); } try { log.info("start upload file: " + fileName); FileCopyUtils.copy(mf.getBytes(), uploadFile); } catch (IOException e) { // TODO Auto-generated catch block // e.printStackTrace(); log.info("upload failed. filename: " + fileName + e.getMessage()); return null; } filePathList.add(filePathUrl+"/"+fileName); } return filePathList; }}6、配置spring-mvc.xml檔案：
<!-- 檔案上傳表單的檢視解析器 --><bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- set the max upload size100MB --> <property name="maxUploadSize"> <value>104857600</value> </property> <property name="maxInMemorySize"> <value>4096</value> </property> </bean>
7、需要增加的jar檔案：
全選複製放進筆記<dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency>
總結：這次上傳花了一點時間，遇到幾個小問題。所以留下來供大家參考。
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