用ajax下载文件_ATHER Shu(A.S)的Blog

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
  if (this.readyState == 4 && this.status == 200){
    //创建隐藏的下载链接
    console.log(this.response, typeof this.response);
    var downloadLink = document.createElement('a');
    downloadLink.style.display = 'none';
    downloadLink.download = "测试.xls";
    var URL = window.URL || window.webkitURL;
    downloadLink.href = URL.createObjectURL(this.response);
    document.body.appendChild(downloadLink);
    //触发click
    var event = document.createEvent("MouseEvents");
    event.initMouseEvent(
      "click", true, false, window, 0, 0, 0, 0, 0
      , false, false, false, false, 0, null
    );
    downloadLink.dispatchEvent(event);
    //URL.revokeObjectURL(iframe.src);
  }
}
xhr.open('POST', url);
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
xhr.responseType = 'blob';
xhr.send($.param({name:'test'}));