Spring-web-3.0.6.release.jar (Org.springframework.web.multipart.MultipartFile)
Commons-fileupload-1.3.1.jar
Commons-logging-1.0.4.jar
<!DOCTYPE HTML><HTMLLang= "en"><Head><MetaCharSet= "Utf-8"><title>Upload</title><styletype= "Text/css"></style></Head><Body> <formenctype= "Multipart/form-data"Action= "/kingtool/file/upload.do"Method= "POST">File:<inputtype= "File"name= "File" /> <inputtype= "Submit"value= "Submit" /> </form></Body></HTML>Background
PackageCom.bobo.code.web.controller;ImportJava.io.File;Importjava.io.IOException;ImportJava.math.BigDecimal;Importjavax.servlet.http.HttpServletRequest;ImportJavax.servlet.http.HttpServletResponse;Importjavax.servlet.http.HttpSession;ImportOrg.springframework.stereotype.Controller;ImportOrg.springframework.ui.ModelMap;Importorg.springframework.web.bind.annotation.RequestMapping;ImportOrg.springframework.web.bind.annotation.RequestMethod;ImportOrg.springframework.web.bind.annotation.RequestParam;Importorg.springframework.web.multipart.MultipartFile; @Controller @requestmapping ({"File/*" }) Public classLogincontroller {/*** Underwriting Document Upload * *@paramSession*/@RequestMapping (Value= "Upload.do", method ={requestmethod.post, requestmethod.get}) Public voidFileUpload (HttpSession session, Modelmap Modelmap, httpservletresponse response, httpservletrequest request, @ Requestparam ("file") Multipartfile file)throwsException, IOException {String ret= ""; Request.setcharacterencoding ("UTF-8");//encoding Format processing//Get file nameString FileName =File.getoriginalfilename (); System.out.println ("FileName:------------------------------------------------------" +fileName); //get File size KBBigDecimal fileSize =NewBigDecimal (File.getsize ()). Divide (NewBigDecimal (1024), 2, BIGDECIMAL.ROUND_HALF_UP); String StartFileName= filename.substring (0, Filename.indexof ("."))); String Endfilename= Filename.substring (Filename.lastindexof ("."))); //New file nameString NewFileName = StartFileName + "_" + math.random () +Endfilename; //File Save pathString Parentpath = Request.getsession (). Getservletcontext (). Getrealpath ("/") + "upload/"; String FilePath= Parentpath +NewFileName; System.out.println ("FilePath:-----------------------------------------------------------" +FilePath); System.out.println ("System.setproperty (' sun.jnu.encoding ')--------" + system.getproperty ("sun.jnu.encoding"))); System.setproperty ("Sun.jnu.encoding", "Utf-8"); System.out.println ("System.setproperty (' sun.jnu.encoding ')--------" + system.getproperty ("sun.jnu.encoding"))); File NewFile=NewFile (Parentpath); if(!newfile.exists ()) {//determine if a folder is created, create a new folder without creating itNewfile.mkdirs (); } BooleanUploadFile =true; //Compare upload file size to more than 10M if(Filesize.compareto (NewBigDecimal (1024x768)) > 0) {UploadFile=false; RET= "The size of the uploaded file cannot exceed 10Mb, please re-select!"; } if(uploadfile) {Try{File.transferto (NewFile (FilePath));//Dump Filesret = "Upload succeeded!"; } Catch(Exception e) {ret= "Upload failed!"; } } Try{Response.setcontenttype ("Text/html;charset=utf-8"); Response.getwriter (). write (ret); Response.getwriter (). Flush (); } Catch(IOException e) {e.printstacktrace (); } }}
Spring Bean Configuration
<BeanID= "Multipartresolver"class= "Org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!--maxuploadsize: The maximum file upload value is in bytes - < Propertyname= "Maxuploadsize"value= "1024000"></ Property> < Propertyname= "Defaultencoding"value= "GBK"></ Property> </Bean>
If not configured, the following error may be reported org.springframework.web.bind.MissingServletRequestParameterException:Required Multipartfile Parameter ' file ' is not present
Using spring's multipartfile to implement file upload "original"
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