Springmvc实现文件上传

  
  
  
  

  

  
  
  
  

  
  
    
    jsp">
  

    上传的文件:

    密钥:

    
 

@Controller
@RequestMapping("/test")
public class FileUploadController {
  @RequestMapping("/file")
  public String testFileUpload(HttpServletRequest request, MultipartFile upload) throws IOException { 
     //upload是表单中文件name属性值,必须保持一致
    System.out.println("testFileUpload...");
    String realPath = request.getSession().getServletContext().getRealPath("/uploads");
    File file = new File(realPath);
    if(!file.exists()){
      file.mkdirs();//创建文件夹
    }
    String filename = upload.getOriginalFilename(); //获取文件名
    String name = upload.getName();//获取表单中的name属性值 即upload

    String uuid = UUID.randomUUID().toString().replaceAll("-", "");//生成uuid避免文件名重复导致冲突覆盖
    filename=uuid+"_"+filename;
    upload.transferTo(new File(file,filename));
    return "forward:success.jsp";
}