使用 AJAX POST POST 数据 [英] POST data using AJAX POST
本文介绍了使用 AJAX POST POST 数据的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
是否可以使用 jQuery 的 ajax post 方法发布图像文件.如果我只是将文件数据放在 POST 请求的数据"参数中,它会起作用吗?
Is it possible to post image file using the jQuery's ajax post method. Would it work if I just put the file data in the POST request's 'data' parameter?
我正在使用 Django 框架.这是我的第一次尝试:
I am using django framework. This is my first attempt:
$('#edit_user_image').change(function(){
var client = new XMLHttpRequest();
var file = document.getElementById("edit_user_image");
var csrftoken = document.getElementsByName('csrfmiddlewaretoken')[0].value
/* Create a FormData instance */
var formData = new FormData();
formData.append("upload", file.files[0]);
client.open("post", "/upload-image/", true);
client.setRequestHeader("X-CSRFToken", csrftoken);
client.setRequestHeader("Content-Type", "multipart/form-data; charset=UTF-8; boundary=frontier");
client.send(formData); /* Send to server */
});
问题在于我没有在我的views.py"中的服务器端获得request.FILES"对象.
The problem with this is that I don't get the'request.FILES' object on the serer side in my 'views.py'.
我也试过用 ajax post 来做,但它也不起作用.
I also tried doing it with ajax post but it doesn't work either.
$('#edit_user_image').change(function(){
var data = {csrfmiddlewaretoken: document.getElementsByName('csrfmiddlewaretoken')[0].value,
content:document.getElementById("edit_user_image").files[0],}
$.post("/upload-image/", data, function(){
});
});
从答案之一进行
$('#edit_user_image').change(function(){
var formData = new FormData($("#edit_user_image")[0]);
$.ajax({
type: "POST",
url: "/upload-image/",
xhr: function() { // custom xhr
// If you want to handling upload progress, modify below codes.
myXhr = $.ajaxSettings.xhr();
if(myXhr.upload){ // check if upload property exists
myXhr.upload.addEventListener('progress', yourProgressHandlingFunction, false); // for handling the progress of the upload
}
return myXhr;
},
data: formData,
// Options to tell JQuery not to process data or worry about content-type
cache: false,
contentType: false,
processData: false,
beforeSend: function(xhr) {
// If you want to make it possible cancel upload, register cancel button handler.
$("#yourCancelButton").click(xhr.abort);
},
success: function( data ) {
// Something to do after upload success.
alert('File has been successfully uploaded.');
location.reload();
},
error : function(xhr, textStatus) {
// Something to do after upload failed.
alert('Failed to upload files. Please contact your system administrator. - ' + xhr.responseText);
}
});
});
推荐答案
这是我最终的工作解决方案:
This is my final working solution:
$('#edit_user_image').change(function(){
var csrftoken = document.getElementsByName('csrfmiddlewaretoken')[0].value
var formData = new FormData($("#edit_user_image")[0]);
var formData = new FormData();
formData.append("file", $('#edit_user_image')[0].files[0]);
formData.append("csrfmiddlewaretoken", csrftoken);
$.ajax({
type: "POST",
url: "/upload-image/",
data: formData,
contentType: false,
processData: false,
});
});
这篇关于使用 AJAX POST POST 数据的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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