自定義form表單的參數及送出方式

我們在上傳檔案或者處理其他一些業務時，需要自定義一些表單，隻用來封存資料，不在界面展示，下面我分享兩種我的處理方式，都是驗證通過的。

第一種：

"click #downloadFile" : function (e,value,row,index)
  {
                var body = $("body");
                //建立表單
                var form = $("<form></form>");
                //設定表單各項屬性
                form.attr("action",hostBase + "downloadFile");
                form.attr("method","get");
                var input = $("<input name='id' />");
                input.attr("value",row.id);
                form.append(input);
                form.hide();
                body.append(form);
                //送出表單
                form.submit();
                form.remove();
            }
           

第二種：

"click #deleteFile" : function (e,value,row,index) {
                var formData = new FormData();
                formData.append("id",row.id);
                $.ajax({
                    type: "post",
                    url: hostBase + "deleteFile",
                    data: formData,
                    cache: false,
                    processData: false,
                    contentType: false,
                    dataType: "text",
                    success: function (data) {
                        if ("success" == data) {
                            alert("删除成功！");
                            $("button[name='refresh']")[0].click();
                        } else {
                            alert("删除失敗！");
                        }
                    },
                    error: function () {
                        alert("删除失敗,請重新整理頁面後,重新删除");
                    }
                });
            }
           

相對應的兩個背景代碼如下：

@RequestMapping(value="/downloadFile",method = RequestMethod.GET)
    public void downloadFile(HttpServletRequest request, HttpServletResponse response,
                      @RequestParam int id)
    {
        Map<String,Object> map = fileHandleService.selectFileInfo(id);
        String fileName = map.get("fileName").toString();
        try {
            response.setContentType("application/force-download");// 設定強制下載下傳不打開
            response.setHeader("Content-Disposition", "attachment;fileName="+ new String(fileName.getBytes("GB2312"),"ISO-8859-1"));
            //response.setHeader("content-Type", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
            BufferedInputStream bis = (BufferedInputStream) map.get("stream");
            OutputStream os = response.getOutputStream();
            byte[] buffer = new byte[1024];
            int len = 0;
            while ((len = bis.read(buffer)) > 0) {
                os.write(buffer, 0, len);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 @RequestMapping(value="/deleteFile",method = RequestMethod.POST)
    public String deleteFile(@RequestParam("id") int id)
    {
        byte[] bytes = null;
        Map<String,Object> map = new HashMap();
        map.put("bytes",bytes);
        map.put("id",id);
        map.put("fileName","");
        String result = fileHandleService.updateFileInfo(map);
        return result;
    }