单控件文件上传DEMO

js根据ID java根据name

<input type="file" name="editMyimg" id="editMyimg">

js:

$.ajaxFileUpload({
    url: '${home}/party/admin/article.json',
    dataType: 'json',
    secureuri: false,
    data: {
    action: "updateData",
    title: title,
    briefInfo: briefInfo,
    id: id
    },
    fileElementId: 'editMyimg',
    success: function () {
    backcall()
        }
});

java (springMVC) :

@RequestMapping
public ActionResult updateData(PartyArticleQuery partyArticleQuery, @RequestParam("editMyimg") MultipartFile file) {
    ActionResult actionResult = ActionResult.ok();

    String img = "";
if (!file.isEmpty()) {
if (!StrUtils.empty(file.getOriginalFilename())) {
            File toFile = null;
try {
                                   toFile = PathUtils.getUpload(PathUtils.PATH_PARTY_ARTICLE, file.getOriginalFilename(), StrUtils.getUUID());
                file.transferTo(toFile);
            } catch (IOException e) {
                PathUtils.delFile(toFile);
return ActionResult.error("图片上传失败");
            }
            img = PathUtils.getUploadPath(toFile);
            partyArticleQuery.setImg(img);
        }
    }
    Integer integer = partyArticleService.updateData(partyArticleQuery);
return actionResult;
}