Word文档下载 流

后台

public void DownFiletemple(string filepath)
        {
            FileInfo fileInfo = new FileInfo(filepath);
            Response.Clear();
            Response.ClearContent();
            Response.ClearHeaders();
            logger.Trace("测试1：···" + fileInfo.FullName);
            Response.AddHeader("Content-Disposition", "attachment;filename=" + fileInfo.FullName);
            Response.AddHeader("Content-Length", fileInfo.Length.ToString());
            logger.Trace("测试2：··Content-Length/·" + fileInfo.Length.ToString());
            Response.AddHeader("Content-Transfer-Encoding", "binary");
            Response.AddHeader("Connection", "Keep-Alive");

            Response.ContentType = "application/octet-stream";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
            logger.Trace("测试3");
            Response.WriteFile(fileInfo.FullName);
            logger.Trace("成功");
            Response.Flush();
            Response.End();

           
        }

异步请求

function btnfiledwon(){
    
        
    var url = 'vshop_CheckOut.aspx?type=ajax&action=FileDown';
 
   var xhr = new XMLHttpRequest();

   xhr.open('POST', url, true);        // 也可以使用POST方式，根据接口

   xhr.responseType = "blob";    // 返回类型blob

   // 定义请求完成的处理函数，请求前也可以增加加载框/禁用下载按钮逻辑

   xhr.onload = function () {
       // 请求完成

       if (this.status === 200) {
           // 返回200

           var blob = this.response;

           var reader = new FileReader();

           reader.readAsDataURL(blob);    // 转换为base64，可以直接放入a表情href

           reader.onload = function (e) {

               // 转换完成，创建一个a标签用于下载

               var a = document.createElement('a');

               a.download = '订单合同.docx';

               a.href = e.target.result;

               $("body").append(a);    // 修复firefox中无法触发click

               a.click();

               $(a).remove();

           }

       }

   };

   // 发送ajax请求

   xhr.send()
    }