基于ssm产品项目+源代码+文档说明

package cn.bdqn.controller; import org.apache.commons.io.FileUtils; import org.apache.commons.io.FilenameUtils; import org.apache.log4j.Logger; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; 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.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import java.io.File; import java.io.IOException; import java.io.UnsupportedEncodingException; /** * @author: 赵林 * @Date: 2019/9/6 8:49 * @Description: */ @Controller @RequestMapping("/f") public class fileManagerController { private Logger logger=Logger.getLogger(fileManagerController.class); @RequestMapping(value = "/upload.do",method = RequestMethod.GET) public String toFile(){ return "fileUpload"; } /** *单文件上传 * @return */ @RequestMapping(value = "/one.html",method = RequestMethod.POST) public String fileupload(HttpServletRequest request, @RequestParam(value = "file",required = false) MultipartFile file) throws IOException { //判断是否有上传的文件 if (!file.isEmpty()) { //输出文件的名字 logger.debug("文件的名称:==============="+file.getOriginalFilename()); logger.debug("文件的大小:==============="+file.getSize()/1024+"k"); logger.debug("文件的后缀:==============="+FilenameUtils.getExtension(file.getOriginalFilename())); //设置文件上传的目录(完整名+文件名) String uploadPath=request.getServletContext().getRealPath("/downloads/")+File.separator +System.currentTimeMillis()+file.getOriginalFilename(); logger.debug("文件上传的目录================>"+uploadPath); //目标文件 File fileptah=new File(uploadPath); //上传文件 FileUtils.copyInputStreamToFile(file.getInputStream(),fileptah); } return "上传成功!"; } /** *单文件上传 * @return */ @RequestMapping(value = "/two.html",method = RequestMethod.POST) public String fileupload2(HttpServletRequest request, @RequestParam MultipartFile[] files) throws IOException { //判断是否有上传的文件 if (files.length!=0) { for (MultipartFile file : files) { //输出文件的名字 logger.debug("文件的名称:==============="+file.getOriginalFilename()); logger.debug("文件的大小:==============="+file.getSize()/1024+"k"); logger.debug("文件的后缀:==============="+FilenameUtils.getExtension(file.getOriginalFilename())); //设置文件上传的目录(完整名+文件名) String uploadPath=request.getServletContext().getRealPath("/downloads/")+File.separator +System.currentTimeMillis()+file.getOriginalFilename(); logger.debug("文件上传的目录================>"+uploadPath); //目标文件 File fileptah=new File(uploadPath); //上传文件 FileUtils.copyInputStreamToFile(file.getInputStream(),fileptah); } } return "上传成功!"; } @RequestMapping(value = "/down.html") public String toDown(){ return "download"; } @RequestMapping(value = "/download.html") public ResponseEntity<byte[]> download(@RequestParam String fileName,HttpServletRequest request) throws IOException { //获取文件在服务器上的目录 String realPath = request.getServletContext().getRealPath("/WEB-INF/jsp/img/"); //最终生成全路径名 File file=new File(realPath+File.separator+fileName); //定义请求头 HttpHeaders httpHeaders=new HttpHeaders(); //下载完成后显示文件名（中文乱码） String downloadFileName=new String( fileName.getBytes("UTF-8"), "ISO-8859-1"); //通知浏览器以附件形式下载文件 httpHeaders.setContentDispositionFormData("attachment",downloadFileName); //定义以二进制流形式下载返回文件数据 httpHeaders.setContentType(MediaType.APPLICATION_OCTET_STREAM); //下载：返回ResponseEntity对象 return new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(file),httpHeaders,HttpStatus.CREATED); } }