Application of Multipartfile multi-file upload

The company's projects in many places to use the file upload, the previous upload is mainly using Apache FileUpload, the use of the feeling is not very good. Try spring Multipartfile today, feel good, the package is relatively concise.

Of course, the middle also ruled out a lot of pits.

1. Configure Commonsmultipartresolver

1     <!--Configure Multipartresolver for file uploads using spring's commosmultipartresolver -2     <BeanID= "Multipartresolver"class= "Org.springframework.web.multipart.commons.CommonsMultipartResolver">3         < Propertyname= "Defaultencoding"value= "UTF-8"/>4         < Propertyname= "Maxuploadsize"value= "209715200"/>5         < Propertyname= "Maxinmemorysize"value= "4096"/>6         < Propertyname= "Uploadtempdir"value= "Fileupload/temp"/>7     </Bean>

Defaultencoding= "UTF-8" is the requested encoding format, the default is Iso-8859-1
Maxuploadsize= "209715200" is the total size of the uploaded file, in bytes, I set the 200M,
Uploadtempdir= "Fileupload/temp" is the temporary path for uploading files

2. Add Apache's FileUpload

1 <Dependency>2     <groupId>Commons-fileupload</groupId>3     <Artifactid>Commons-fileupload</Artifactid>4     <version>1.2.2</version>5 </Dependency>

Should be the multipartfile way to upload the bottom will also use Commons-fileupload

3. The front end uses the jquery file upload

1 <spanclass= "btn btn-success Fileinput-button">2     <Iclass= "Glyphicon glyphicon-plus"></I>3     <span>Select File ...</span>4     <!--The file input field used as target for the file upload widget -5     <inputID= "FileUpload"type= "File"name= "file[]"multiple>6 </span>7#jquery file upload is not uploaded using form form, it is the Ajax way to send the request to the background,
#如果是以表单形式提交上传请求, don't forget to addenctype="Multipart/form-data" 
8 ...9 Ten $ (' #fileupload '). FileUpload ({ OneURL: "<%=Request.getcontextpath ()%>/aaa/upload.do ", A Sequentialuploads:true, - Singlefileuploads:false, - add:function (E, data) { theData.context = $ ('<Button/>'). Text (' Upload ') - . AppendTo (document.body) - . Click (function () { -Data.context = $ ('<P/>'). Text (' uploading ... '). ReplaceAll ($ (this)); + data.submit (); -             }); +     }, A done:function (E, data) { at $.each (data.files, function (index, file) { -$ ('<P/>'). Text (file.name). AppendTo (document.body); -         }); -     } -});

jquery file upload looks good, is the Chinese information or a little bit, the official website look at the head big.

4. Backstage is our focus, in fact, I would like to say that I just want to find a good weekend, beautiful front-end upload plug-in, the results focus on the backstage to come.

File upload request HttpServletRequest will be resolved to Multiparthttpservletrequest because Commonsmultipartresolver is configured

1  /**2 * Multi-File Upload3      *4      * @parammultipartrequest5      * @return6      * @throwsIOException7      */8 @ResponseBody9@RequestMapping (value = "Upload", method =requestmethod.post)Ten      PublicString Handleimport (defaultmultiparthttpservletrequest multipartrequest)throwsIOException { One         if(Multipartrequest! =NULL) { AIterator<string> Iterator =multipartrequest.getfilenames (); -              while(Iterator.hasnext ()) { -  the //                //Single File Upload.  - //multipartfile file = Multipartrequest.getfile (Iterator.next ());//pass one file at a time - //if (Stringutils.hastext (File.getoriginalfilename ())) { - //File.transferto (New file ("E:/upload_" + File.getoriginalfilename ())); + //                } -  +                 //multiple file uploads Alist<multipartfile> fileList = Multipartrequest.getfiles (Iterator.next ());//Select multiple file uploads at a time at                  for(Multipartfile file:filelist) { -                     if(Stringutils.hastext (File.getoriginalfilename ())) { -File.transferto (NewFile ("E:/upload_" +file.getoriginalfilename ())); -                     } -                 } -             } in         } -         return"Success"; to}

Application of Multipartfile multi-file upload