下载：
1.在spring-mvc中配置(用于100M以下的文件下载)
下载文件代码
@RequestMapping("/file/{name.rp}")
public ResponseEntity fileDownLoad(@PathVariable("name.rp")String name, HttpServletRequest request,HttpServletResponse response) {
// @PathVariable String name,
// @RequestParam("name")String name,
// System.out.println(""+name);
// System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
ResponseEntity re = null;
try {
//下载防止静态加载干扰
Feelutile f=new Feelutile();
name=f.getfileformat(name);
String pathString="C:\tempDirectory\"+name;
File file=new File(pathString);
HttpHeaders headers=new HttpHeaders();
//String filename=URLEncoder.encode(name, "UTF-8");//为了解决中文名称乱码问题
String filename=new String(name.getBytes("utf-8"),"utf-8");
byte[] by=FileUtils.readFileToByteArray(file);
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
//URLEncoder.encode(filename, "UTF-8")
headers.setContentDispositionFormData("attachment",filename);
headers.setContentLength(by.length);
re=new ResponseEntity(by, headers, HttpStatus.CREATED);
} catch (Exception e) {
e.printStackTrace();
try {
request.getRequestDispatcher("/error/404.jsp").forward(request, response);
} catch (ServletException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
return re;
}
上传文件:
1在spring-mvc中配置
UTF-8 1048576000 40960
在controller中代码如下
@RequestMapping(value="/upload", method = RequestMethod.POST)
@ResponseBody
public Json upload(Doc doc, @RequestParam("uploadFile") CommonsMultipartFile file) {
Json j = new Json();
try {
String realpath = this.servletContext.getRealPath("/upload");
String uploadFileFileName = file.getOriginalFilename();
String uploadFileFileNameWithoutSpace = uploadFileFileName.replaceAll(" ", "");
String fileType = uploadFileFileNameWithoutSpace.substring(uploadFileFileNameWithoutSpace.lastIndexOf("."));
File targetFile = new File(realpath+File.separator, uploadFileFileNameWithoutSpace);
if (targetFile.exists()) {
targetFile.delete();
}
file.getFileItem().write(targetFile);
docService.upload(doc,uploadFileFileNameWithoutSpace);
j.setSuccess(true);
j.setMsg("Upload manual successfully");
}catch (Exception e) {
logger.error(ExceptionUtil.getExceptionMessage(e));
j.setMsg("Upload manual unsuccessfully");
}
return j;
}
以上所述是小编给大家介绍的Java Spring MVC 上传下载文件配置及controller方法详解，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对考高分网网站的支持！
