SpringMVC 多文件上传

Posted 2020-06-08

springMVC.xml 配置

<bean id="multipartResolver"  class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="uft-8" /> <!-- 默认编码 (ISO-8859-1) -->
        <property name="maxInMemorySize" value="10240" /> <!-- 最大内存大小 (10240)-->
        <property name="uploadTempDir" value="/upload/" /> <!-- 上传后的目录名 (WebUtils#TEMP_DIR_CONTEXT_ATTRIBUTE) -->
        <property name="maxUploadSize" value="-1" /> <!-- 最大文件大小，-1为无限止(-1) -->
        </bean>

jsp代码

 

 <form action="spring/upload2"  enctype="multipart/form-data" method="post">
        上传文件1：<input name="file" type="file"/><br/>
        上传文件2：<input name="file" type="file"/><br/>
        <input type="submit" value="提交">
    </form>

 

后台代码

 

@RequestMapping(value = "/upload2")
    public String filesUpload(@RequestParam("file") MultipartFile[] files,
            HttpServletRequest request) throws IOException {
        String message = "";
        try {

            for (int i = 0; i < files.length; i++) {
                if (!files[i].isEmpty()) {
                    // 开始上传时间
                    int startTime = (int) System.currentTimeMillis();
                    // 拿到文件名称
                    String fileName = files[i].getOriginalFilename();
                    // 上传路径
                    String path = "G:/" + fileName;
                    System.out.println("文件名：" + fileName);
                    // 上传
                    files[i].transferTo(new File(path));
                    message = "上传成功";
                    request.getSession().setAttribute("message", message);
                    int endTime = (int) System.currentTimeMillis();
                    // 计算上传时间
                    System.out.println(endTime - startTime + "ms");
                }
                message = "上传成功";
                request.getSession().setAttribute("message", message);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

        return "forward:/WEB-INF/jsp/FileUpload/result.jsp";
    }