case 1
<form method="POST" action="uploadFile" enctype="multipart/form-data">
File to upload: <input type="file" name="file"><br />
Name: <input type="text" name="name"><br /> <br />
<input type="submit" value="Upload"> Press here to upload the file!
</form>
case 2
<form method="POST" action="uploadMultipleFile" enctype="multipart/form-data">
File1 to upload: <input type="file" name="file"><br />
Name1: <input type="text" name="name"><br /> <br />
File2 to upload: <input type="file" name="file"><br />
Name2: <input type="text" name="name"><br /> <br />
<input type="submit" value="Upload"> Press here to upload the file!
</form>
package com.journaldev.spring.controller; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; /** * Handles requests for the application file upload requests */ @Controller public class FileUploadController { private static final Logger logger = LoggerFactory .getLogger(FileUploadController.class); /** * Upload single file using
Spring Controller */ @RequestMapping(value = "/uploadFile", method = RequestMethod.POST) public @ResponseBody String uploadFileHandler(@RequestParam("name") String name, @RequestParam("file") MultipartFile file) { if (!file.isEmpty()) { try { byte[] bytes = file.getBytes(); // Creating the directory to store file String rootPath = System.getProperty("catalina.home"); File dir = new File(rootPath + File.separator + "tmpFiles"); if (!dir.exists()) dir.mkdirs(); // Create the file on server File serverFile = new File(dir.getAbsolutePath() + File.separator + name); BufferedOutputStream stream = new BufferedOutputStream( new FileOutputStream(serverFile)); stream.write(bytes); stream.close(); logger.info("Server File Location=" + serverFile.getAbsolutePath()); return "You successfully uploaded file=" + name; } catch (Exception e) { return "You failed to upload " + name + " => " + e.getMessage(); } } else { return "You failed to upload " + name + " because the file was empty."; } } /** * Upload multiple file using
Spring Controller
*/
@RequestMapping(value = "/uploadMultipleFile", method = RequestMethod.POST) public @ResponseBody String uploadMultipleFileHandler(@RequestParam("name") String[] names, @RequestParam("file") MultipartFile[] files) { if (files.length != names.length) return "Mandatory information missing"; String message = ""; for (int i = 0; i < files.length; i++) { MultipartFile file = files[i]; String name = names[i]; try { byte[] bytes = file.getBytes(); // Creating the directory to store file String rootPath = System.getProperty("catalina.home"); File dir = new File(rootPath + File.separator + "tmpFiles"); if (!dir.exists()) dir.mkdirs(); // Create the file on server File serverFile = new File(dir.getAbsolutePath() + File.separator + name); BufferedOutputStream stream = new BufferedOutputStream( new FileOutputStream(serverFile)); stream.write(bytes); stream.close(); logger.info("Server File Location=" + serverFile.getAbsolutePath()); message = message + "You successfully uploaded file=" + name + " "; } catch (Exception e) { return "You failed to upload " + name + " => " + e.getMessage(); } } return message; } }
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