Java code is added

java/FileUploadController.java

@@ -0,0 +1,28 @@
+import java.util.Iterator;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.multipart.MultipartHttpServletRequest;
+
+@Controller
+public class FileUploadController {
+
+    @RequestMapping(value="/upload", method=RequestMethod.POST)
+		public String handleFileUpload(MultipartHttpServletRequest request){
+			Iterator<String> iterator = request.getFileNames();
+
+			while (iterator.hasNext()) {
+					String fileName = iterator.next();
+					MultipartFile multipartFile = request.getFile(fileName);
+					byte[] file = multipartFile.getBytes();
+
+					// do stuff...
+
+			}
+
+			// do stuff...
+
+		}
+}