Java 上传文件

上传文件

    @ResponseBody
    @RequestMapping("/doAdd")
    public Object doAdd(HttpServletRequest request, Advert advert, HttpSession session) {
        AjaxResult result = new AjaxResult();
        try {
            MultipartHttpServletRequest mreq = (MultipartHttpServletRequest) request;

            MultipartFile mfile = mreq.getFile("advpic");

            String name = mfile.getOriginalFilename();//java.jpg
            String extname = name.substring(name.lastIndexOf(".")); // .jpg

            String iconpath = UUID.randomUUID().toString() + extname; //232243343.jpg

            ServletContext servletContext = session.getServletContext();
            String realpath = servletContext.getRealPath("/pics");

            String path = realpath + "\adv\" + iconpath;

            mfile.transferTo(new File(path));

            User user = (User) session.getAttribute(Const.LOGIN_USER);
            advert.setUserid(user.getId());
            advert.setStatus("1");
            advert.setIconpath(iconpath);

            int count = advertService.insertAdvert(advert);
            result.setSuccess(count == 1);
        } catch (Exception e) {
            e.printStackTrace();
            result.setSuccess(false);
            result.setMessage(e.getMessage());
            System.out.println(e.getStackTrace());
        }
        return result;
    }

html

                    <form id="advertForm" method="post" action="" enctype="multipart/form-data">
                        <div class="form-group">
                            <label for="name">广告名称</label>
                            <input type="text" class="form-control" id="name" name="name" placeholder="请输入广告名称">
                        </div>
                        <div class="form-group">
                            <label for="url">广告地址</label>
                            <input type="text" class="form-control" id="url" name="url" placeholder="请输入广告地址">
                        </div>
                        <div class="form-group">
                            <label for="advpic">广告图片</label>
                            <input type="file" class="form-control" id="advpic" name="advpic" placeholder="请输入广告图片">
                        </div>
                        <button id="saveBtn" type="button" class="btn btn-success"><i
                                class="glyphicon glyphicon-plus"></i> 新增
                        </button>
                        <button type="button" class="btn btn-danger"><i class="glyphicon glyphicon-refresh"></i> 重置
                        </button>
                    </form>

javascript

<script type="text/javascript">
    $(function () {
        $(".list-group-item").click(function () {
            if ($(this).find("ul")) {
                $(this).toggleClass("tree-closed");
                if ($(this).hasClass("tree-closed")) {
                    $("ul", this).hide("fast");
                } else {
                    $("ul", this).show("fast");
                }
            }
        });
    });
    $(function () {
        $("#saveBtn").click(function () {
            var options = {
                url: "${APP_PATH}/advert/doAdd.do",
                beforeSubmit: function () {
                    loadingIndex = layer.msg('数据正在保存中', {icon: 6});
                    return true; //必须返回true,否则,请求终止.
                },
                success: function (result) {
                    layer.close(loadingIndex);
                    if (result.success) {
                        layer.msg("广告数据保存成功", {time: 1000, icon: 6});
                        setTimeout(function () {
                            window.location.href = "${APP_PATH}/advert/index.htm";
                        }, 1000);
                    } else {
                        console.log(result.message);
                        layer.msg("广告数据保存失败", {time: 1000, icon: 5, shift: 6});
                    }
                }
            };
            $("#advertForm").ajaxSubmit(options); //异步提交
            return;
            <%--$("#advertForm").attr("action", "${APP_PATH}/advert/doAdd.do");--%>
            <%--$("#advertForm").submit();--%>
        });
    });
</script>