Question

$.ajax({
  xhr: function()
  {
    var xhr = new window.XMLHttpRequest();
    //Upload progress
    xhr.upload.addEventListener("progress", function(evt){
      if (evt.lengthComputable) {
        var percentComplete = evt.loaded / evt.total;
        //Do something with upload progress
        console.log(percentComplete);
      }
    }, false);
    //Download progress
    xhr.addEventListener("progress", function(evt){
      if (evt.lengthComputable) {
        var percentComplete = evt.loaded / evt.total;
        //Do something with download progress
        console.log(percentComplete);
        }
      }, false);
    return xhr;
  },
  type: 'POST',
  url: "/",
  data: {},
  success: function(data){
    //Do something success-ish
  }
});

这对jQuery 1.5+不起作用，因为xhr被jqXHR（即原始XHR的高级版本）所取代。现在的问题是如何让它与jqXHR一起工作...... 有谁知道怎么做？

Answer 1

试试这个

$.ajax({
    url: path,
    xhr: function () {
        var xhr = $.ajaxSettings.xhr();
        xhr.upload.onprogress = function (e) {
            if (e.lengthComputable) {
                console.log(e.loaded / e.total);
            }
        };
        return xhr;
    }
}).done(function (e) {

})

Answer 2

我制作了一个jquery插件，以便以简单的方式处理上传或下载进度事件。使用任何jquery ajax方法，如$ .ajax，$。get，$ getJSON，$ .post等。您可以从这里下载它：https://github.com/cvelazquez/jquery.ajax.progress

var jqXHR = $.post('www.somedomain.com', {data:"real long data, o maybe a file upload"}, function(response){
    /* do anything on finish */
});

$(jqXHR).on('uploading', function(proxyEvent, event){
    if (event.lengthComputable) {
        // You can do anything here
        console.log("Uploaded " + parseInt( (event.loaded / event.total * 100), 10) + "%");
    }
});

Answer 3

搜索文档和其他问题，似乎有一个插件来监视jquery ajax进度：https://github.com/hiddentao/jquery.ajaxprogress

有没有办法让jQuery ajax上传进度？

3 个答案: