controller.UploadFileController.java Source code

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Here is the source code for controller.UploadFileController.java

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package controller;

import java.io.File;
import java.io.FileOutputStream;
import java.util.Calendar;
import java.util.Iterator;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.util.FileCopyUtils;
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;
import org.springframework.web.multipart.MultipartHttpServletRequest;

/**
 *
 * @author Minh-IT
 */
@Controller
@RequestMapping(value = "/upload")
public class UploadFileController {
    @RequestMapping(method = RequestMethod.POST)
    public @ResponseBody String upload(@RequestParam(value = "file") MultipartFile mfile, HttpServletResponse res,
            HttpServletRequest req) {
        long time = Calendar.getInstance().getTimeInMillis();
        String fileName = "";
        try {
            fileName = time + mfile.getOriginalFilename();
            File f = new File(req.getServletContext().getRealPath("/images") + "/" + fileName);
            if (!f.exists()) {
                f.createNewFile();
            }
            FileOutputStream out = new FileOutputStream(f);
            FileCopyUtils.copy(mfile.getBytes(), out);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return "<img src='" + req.getContextPath() + "/images/" + fileName + "'/>";

    }
}