Spring MVC uploads files

Step one: Springmvc.xml join the configuration Multipartresolver processor. You can add attribute restrictions to uploaded files here.

<bean id="multipartresolver" class= "Org.springframework.web.multipart.commons.CommonsMultipart Resolver ">

<property name="defaultencoding" value="Utf-8"></property>

<!--The maximum number of uploaded files--

<property name="maxuploadsize" value="10485760000"></property>

<!--cache Size-

<property name="maxinmemorysize" value="40960"></property>

</bean>

Step two: Prepare the foreground form. Note enctype= "Multipart/form-data" and <input type= "file" name= "* * *"/>

<form action="udload/upload.do" method="POST" enctype="Multipart/form-data " >

Select: <input type="file" name="myfile" id= "myfile" ><br/>

<input type=" submit" value=" submission">

</form>

Step three: Add the Multipartfile parameter to the controller's method. This parameter is used to receive the contents of the file component in the form

@RequestMapping ("/upload")

Public String upload (model model, multipartfile multipartfile)

Throws IOException {

Gets the path of the uploaded file save

String path = Request.getsession (). Getservletcontext (). Getrealpath ("Upload");

Get the name of the uploaded file

String filename = multipartfile. Getoriginalfilename ();

Create a folder upload

File TargetFile = new file (path, filename);

Determine if the folder already exists, and if it already exists, re-build

if (!targetfile.exists ()) {

Targetfile.mkdirs ();

}

multipartfile. TransferTo (TargetFile);

return "Votecount/result";

}

Spring MVC uploads files