SSM文件上传

SSM文件上传 第一步：添加Maven依赖

	
 	
        commons-io
        commons-io
        2.4
    
    
        commons-fileupload
        commons-fileupload
        1.4
        
            
                commons-io
                commons-io
            
        
    
    
        commons-codec
        commons-codec
        1.13
    

springmvc.xml中添加文件上传的配置

上传文件的网页

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

处理文件上传的控制器

@Controller
@RequestMapping("/file")
public class FileUploadController {

    @PostMapping("/upload")
    public ModelAndView fileUpload(@RequestParam("file") MultipartFile multipartFile, ModelAndView mav) {
        String originalFilename = multipartFile.getOriginalFilename();    //获取原文件名
        String newFilename = UUID.randomUUID() + "_" + originalFilename;    //使用UUID避免重名

        File filePath = new File("D:/" + newFilename);
        try {
            multipartFile.transferTo(filePath);
        } catch (IllegalStateException|IOException e) {
            e.printStackTrace();
            mav.addObject("msg", "上传失败");
            mav.setViewName("show");
            return mav;
        }
        mav.addObject("msg", "上传成功");
        mav.setViewName("show");
        return mav;
    }
 }