多文件上传

1. <form id="fileupload" action="/rest/pic/upload" method="POST" enctype="multipart/form-data">  
2.         <!-- Redirect browsers with JavaScript disabled to the origin page -->  
3.         <noscript><input type="hidden" name="redirect" value="https://blueimp.github.io/jQuery-File-Upload/"></noscript>  
4.         <!-- The fileupload-buttonbar contains buttons to add/delete files and start/cancel the upload -->  
5.         <div class="row fileupload-buttonbar">  
6.             <div class="col-lg-7">  
7.                 <!-- The fileinput-button span is used to style the file input field as button -->  
8.                 <span class="btn btn-success fileinput-button">  
9.                     <i class="glyphicon glyphicon-plus"></i>  
10.                     <span>选择文件(多选)</span>  
11.                     <input type="file" name="uploadFile" multiple="multiple">  
12.                 </span>  
13.                 <button type="submit" class="btn btn-primary start">  
14.                     <i class="glyphicon glyphicon-upload"></i>  
15.                     <span>开始上传</span>  
16.                 </button>  
17.                 <button type="reset" class="btn btn-warning cancel">  
18.                     <i class="glyphicon glyphicon-ban-circle"></i>  
19.                     <span>取消上传</span>  
20.                 </button>  
21.                 <button type="button" class="btn btn-danger delete">  
22.                     <i class="glyphicon glyphicon-trash"></i>  
23.                     <span>删除</span>  
24.                 </button>   
25.                 <input type="checkbox" class="toggle" title="全选">  
26.                 <!-- The global file processing state -->  
27.                 <span class="fileupload-process"></span>  
28.             </div>  
29.             <!-- The global progress state -->  
30.             <div class="col-lg-5 fileupload-progress fade">  
31.                 <!-- The global progress bar -->  
32.                 <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100">  
33.                     <div class="progress-bar progress-bar-success" style="width:0%;"></div>  
34.                 </div>  
35.                 <!-- The extended global progress state -->  
36.                 <div class="progress-extended"> </div>  
37.             </div>  
38.         </div>  
39.         <!-- The table listing the files available for upload/download -->  
40.         <table role="presentation" class="table table-striped"><tbody class="files"></tbody></table>  
41.     </form>  

Controller  层

1. @Controller  
2. @RequestMapping("pic")  
3. public class FileUploadUtil{  
4.       
5.     private static final Logger LOGGER = Logger.getLogger(FileUploadUtil.class);  
6.        @Value(value = "${IMAGE_BASE_URL}")  
7.         private String IMAGE_BASE_URL;  
8.         private String REPOSITORY_PATH;  
9.         private static final ObjectMapper mapper = new ObjectMapper();  
10.   
11.         @Autowired  
12.         private ExportService exportService;  
13.         // 允许上传的格式  
14.         private static final String[] IMAGE_TYPE = new String[] { ".bmp", ".jpg", ".jpeg", ".gif", ".png" };  
15.   
16.         @RequestMapping(value = "/upload", method = RequestMethod.POST)  
17.         @ResponseBody  
18.         public String upload(@RequestParam("uploadFile") MultipartFile[] uploadFile , HttpServletRequest request,HttpServletResponse response) throws Exception {  
19.             REPOSITORY_PATH = request.getSession().getServletContext().getRealPath("upload");  
20.             MultipartFile multipartFile = null;  
21.             boolean isLegal = false;  
22.             List<PicUploadResult> fileUploadResult = new ArrayList<>();  
23.             PicUploadResult pic = null;  
24.             ExportExcelConfig eec = new ExportExcelConfig();  
25.             String urls = "";  
26.             for (int i = 0; i < uploadFile.length; i++) {  
27.                 multipartFile = uploadFile[i];  
28.                 // 校验图片格式  
29.                 for (String type : IMAGE_TYPE) {  
30.                     if (StringUtils.endsWithIgnoreCase(multipartFile.getOriginalFilename(), type)) {  
31.                         isLegal = true;  
32.                         break;  
33.                     }  
34.                 }  
35.   
36.                 // 封装Result对象，并且将文件的byte数组放置到result对象中  
37.                 pic = new PicUploadResult();  
38.   
39.                 // 状态  
40.                 pic.setError(isLegal ? 0 : 1);  
41.   
42.                 // 文件新路径  
43.                 String filePath = getFilePath(multipartFile.getOriginalFilename());  
44.   
45.                 if (LOGGER.isDebugEnabled()) {  
46.                     LOGGER.debug("Pic file upload .[{}] to [{}] ."+multipartFile.getOriginalFilename());  
47.                 }  
48.   
49.                 // 生成图片的绝对引用地址  
50.                 String picUrl = StringUtils.replace(StringUtils.substringAfter(filePath,REPOSITORY_PATH), "\\", "/");  
51.                 pic.setUrl(IMAGE_BASE_URL + picUrl);  
52.   
53.                 File newFile = new File(filePath);  
54.   
55.                 // 写文件到磁盘  
56.                 multipartFile.transferTo(newFile);  
57.   
58.                 // 校验图片是否合法  
59.                 isLegal = false;  
60.                 try {  
61.                     BufferedImage image = ImageIO.read(newFile);  
62.                     if (image != null) {  
63.                         pic.setWidth(image.getWidth() + "");  
64.                         pic.setHeight(image.getHeight() + "");  
65.                         isLegal = true;  
66.                     }  
67.                 } catch (IOException e) {  
68.                 }  
69.   
70.                 // 状态  
71.                 pic.setError(isLegal ? 0 : 1);  
72.                 if(pic.getError()==0){  
73.                     urls+=pic.getUrl();  
74.                     if(i<2)  
75.                     urls+=",";  
76.                 }  
77.                 if (!isLegal) {  
78.                     // 不合法，将磁盘上的文件删除  
79.                     newFile.delete();  
80.                 }  
81.                 fileUploadResult.add(pic);  
82.             }   
83.             eec.setUrl(urls);  
84.             eec.setCreateTime(new Date());  
85.             exportService.addConfigInfo(eec);  
86.             response.setContentType(MediaType.TEXT_HTML_VALUE);  
87.             return mapper.writeValueAsString(fileUploadResult);  
88.         }  
89.   
90.         private String getFilePath(String sourceFileName) {  
91.             String baseFolder = REPOSITORY_PATH;  
92.             Date nowDate = new Date();  
93.             // yyyy/MM/dd  
94.             String fileFolder = baseFolder + File.separator + new DateTime(nowDate).toString("yyyy") + File.separator + new DateTime(nowDate).toString("MM") + File.separator  
95.                     + new DateTime(nowDate).toString("dd");  
96.             File file = new File(fileFolder);  
97.             if (!file.isDirectory()) {  
98.                 // 如果目录不存在，则创建目录  
99.                 file.mkdirs();  
100.             }  
101.             // 生成新的文件名  
102.             String fileName = new DateTime(nowDate).toString("yyyyMMddhhmmssSSSS") + RandomUtils.nextInt(100, 9999) + "." + StringUtils.substringAfterLast(sourceFileName, ".");  
103.             return fileFolder + File.separator + fileName;  
104.         }  
105. }