【JavaWeb】SpringMvc 文件上传

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1. 添加上传文件组件支持

    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>

2. Controller部分

@RequestMapping("upload.do")    public String upload(@RequestParam("file") MultipartFile file)            throws IllegalStateException, IOException {        String basePath = "xxx";            String path = "";            if (!file.isEmpty()) {                if (file.getOriginalFilename().endsWith("txt"))                    path = basePath + "doc";                 else if (file.getOriginalFilename().endsWith("jpg") || file.getOriginalFilename().endsWith("gif")                        || file.getOriginalFilename().endsWith("png"))                    path = basePath + "img";                else                    path = basePath + "other";                String fileName = f.getOriginalFilename();                File tarFile = new File(path, fileName);                file.transferTo(tarFile);            }        return "index.jsp";    }

3. html部分

<form action="upload.do" enctype="multipart/form-data" method="post">        <input type="file" name="file">        <input type="submit" value="上传">    </form>

4. 多文件上传

@RequestMapping("upload.do")    public String upload(@RequestParam("file") MultipartFile[] file, HttpServletRequest req)            throws IllegalStateException, IOException {        String basePath = "xxx";        for (MultipartFile f : file) {            String path = "";            if (!f.isEmpty()) {                if (f.getOriginalFilename().endsWith("txt"))                    path = basePath + "doc";                 else if (f.getOriginalFilename().endsWith("jpg") || f.getOriginalFilename().endsWith("gif")                        || f.getOriginalFilename().endsWith("png"))                    path = basePath + "img";                else                    path = basePath + "other";                String fileName = f.getOriginalFilename();                File tarFile = new File(path, fileName);                f.transferTo(tarFile);            }        }        return "index.jsp";

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