ssm实现简单的文件上传

方式一：（单文件上传）

jsp页面：

<form action="${pageContext.request.contextPath}/uploadFile" method="post" enctype="multipart/form-data">
        <table>
            <tr>
                <td>文件1:</td>
                <td><input type="file" name="files"/></td>
            </tr>
            <tr>
                <td>文件2:</td>
                <td><input type="file" name="files"/></td>
            </tr>
            <tr>
                <td colspan="2"><input type="submit" value="上传"/></td>
            </tr>
        </table>
    </form>

controller页面：

 @RequestMapping("uploadFile")
    public String uploadFile(@RequestParam("files")MultipartFile[] files, HttpServletRequest request) throws IOException {
        String path = request.getServletContext().getRealPath("/WEB-INF/upload/");
        File dir = new File(path);
        if (!dir.exists()) {
            dir.mkdir();
        }
        for (MultipartFile file : files) {
            String name = file.getName();
            String originalName = file.getOriginalFilename();
            System.out.println("name:" + name + ",originalName:" + originalName);
            file.transferTo(new File(path+originalName));
        }
        return "user/success";
    }

效果图：


文件上传成功。

方式二：(多文件上传)

jsp页面：

 <form action="${pageContext.request.contextPath}/uploadFile" method="post" enctype="multipart/form-data">
        <table>
             <tr>
                  <td>文件:</td>
                  <td><input type="file" name="files" multiple/>(支持多文件上传)</td>
              </tr>
            <tr>
                <td colspan="2"><input type="submit" value="上传"/></td>
            </tr>
        </table>
    </form>

controller页面

@RequestMapping("uploadFile")
    public String uploadFile(@RequestParam("files")MultipartFile[] files, HttpServletRequest request) throws IOException {
        String path = request.getServletContext().getRealPath("/WEB-INF/upload/");
        File dir = new File(path);
        if (!dir.exists()) {
            dir.mkdir();
        }
        for (MultipartFile file : files) {
            String name = file.getName();
            String originalName = file.getOriginalFilename();
            System.out.println("name:" + name + ",originalName:" + originalName);
            file.transferTo(new File(path+originalName));
        }
        return "user/success";
    }

效果图：