SpringMVC框架-22:文件上传

今天药忘吃喽~ 2022-04-25 08:24 264阅读 0赞

# 第一步：引入jar包 #

![20190530180100570.png][]

# 第二步:配置上传 #

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
            
            <property name="defaultEncoding" value="UTF-8"/>
            
            <property name="maxUploadSize" value="32505856"/>
        </bean>

# 第三步:前端代码 #

# 第四步：后端处理 #

@Controller
    public class UpLoad {
        @RequestMapping("/fileUpload")
        public String test1(@RequestParam("file") CommonsMultipartFile file, HttpSession session) throws IOException {
            System.out.println(file.getOriginalFilename());
            //确定上传路径
            ServletContext servletContext = session.getServletContext();
            String realPath = servletContext.getRealPath("/fileUpload");
            //变成程序中的路径
            File uploadPath = new File(realPath);
            System.out.println(uploadPath);
            if (!uploadPath.exists()){ //如果路径不存在，则创建路径
                uploadPath.mkdirs();
            }
    
            //确认最终的路径
            String filename = file.getOriginalFilename(); //获取上传的文件名称
            File realFilePath = new File(uploadPath +"/"+ filename);
    
            //开始上传(即将程序中的文件写入到指定的文件夹中）
            file.transferTo(realFilePath);
            return "success.jsp";
        }
    }

[20190530180100570.png]: /images/20220125/5ba68be8f0f1419ea615e69ddccd9964.png