SpringMVC+BUI实现文件上传实例

package com.luo.controller; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.Map; import javax.servlet.http.HttpServletRequest; 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.ResponseBody; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; import org.springframework.web.servlet.ModelAndView; @Controller public class UserController { private final String SAVE_DIR = "C:/Users/luoguohui/Desktop/save/"; @RequestMapping("/index.jhtml") public ModelAndView getIndex(HttpServletRequest request) throws IOException { ModelAndView mav = new ModelAndView("index"); return mav; } @RequestMapping(value="/uploadFlie.json", method=RequestMethod.POST) @ResponseBody public String uploadFlie(HttpServletRequest request) throws IOException { MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; Map<String, MultipartFile> fileMap = multipartRequest.getFileMap(); String fileName = null; for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) { MultipartFile myfile = entity.getValue(); fileName = myfile.getOriginalFilename(); byte[] bs = myfile.getBytes(); File file = new File(SAVE_DIR + fileName); FileOutputStream fos = new FileOutputStream(file); fos.write(bs); fos.close(); } return "{\"url\" : \"" + SAVE_DIR + fileName + "\"}"; } }