Springmvc Uploading Images

Package Controller;import Java.io.file;import Java.io.ioexception;import javax.servlet.http.HttpServletRequest; Import Org.apache.commons.lang.xwork.randomstringutils;import Org.springframework.stereotype.controller;import Org.springframework.web.bind.annotation.requestmapping;import Org.springframework.web.servlet.ModelAndView; Import Pojo. Uploadedimagefile; The second parameter of the @Controllerpublic class Uploadcontroller {@RequestMapping ("/uploadimage")//Method Uploa Dedimagefile has been injected with the image public Modelandview upload (httpservletrequest request, uploadedimagefile file) th Rows IllegalStateException, IOException {//via Randomstringutils.randomalphanumeric (10); Get a random file name.        Because the user may upload files of the same file name, in order not to overwrite the original file, a random file name method to circumvent String name = Randomstringutils.randomalphanumeric (10);                String NewFileName = name + ". jpg"; Request.getservletcontext (). Getrealpath ("/image")//According to Request.getservletcontext (). Getrealpath get to the web directory Image directory, which is used to store the uploadedFile.                                  File NewFile = new file (Request.getservletcontext (). Getrealpath ("/image"), NewFileName);        System.out.println (NewFile);        System.out.println (Newfile.getparentfile ());                Newfile.getparentfile (). Mkdirs (); Call File.getimage (). TransferTo (NewFile);        Copy file File.getimage (). TransferTo (NewFile);        Modelandview Mav = new Modelandview ("Showuploadedfile");        Mav.addobject ("ImageName", NewFileName);    return MAV; }}

The above 2 output statements are printed as follows

信息: Starting ProtocolHandler ["http-bio-8080"]六月 01, 2018 5:12:52 下午 org.apache.coyote.AbstractProtocol start信息: Starting ProtocolHandler ["ajp-bio-8009"]六月 01, 2018 5:12:52 下午 org.apache.catalina.startup.Catalina start信息: Server startup in 4227 msC:\Users\chen\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\springmvc\image\x6Cf5WOFyZ.jpgC:\Users\chen\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\springmvc\image

New class Uploadcontroller as upload controller
Preparation method upload Map upload path/uploadimage

1. The second parameter of the Uploadedimagefile method has been injected with the image
2. by Randomstringutils.randomalphanumeric (10); Gets a random file name. Because the user may upload files of the same file name, in order not to overwrite the original file, through the random file name method to circumvent
3. According to Request.getservletcontext (). Getrealpath Gets the image directory under the WebContent directory, which is used to store the uploaded file.
4. Call File.getimage (). TransferTo (NewFile); Copying files
5. Submits the generated random file name to the view for subsequent display

Springmvc Uploading Images