jQuery $ .post表单数据未定义

Question

我有这个代码:

var d = [];
$('.sortable li').each( function() {
    var book_id = $(this).attr('book-id');
    var order = $(this).index() + 1;
    d.push({'book_id': book_id, 'order': order});
});
console.log(d);
$.post('/books/reorder', d, function(resp) {
    alert(resp);
});

当我做的console.log(d);每件事看起来都很棒但是当我把它发布到我的服务器时,请求表单数据是空的.

这里有什么我想念的吗？

谢谢!

Answer 1

该文件指出,数据只需要PlainObject或字符串

Type: PlainObject or String
A plain object or string that is sent to the server with the request.

您正在尝试发送数组.如果将其作为对象,则可以将其传递

$.post('/books/reorder', {data:d},function(resp) {

如果您在data属性上阅读jquery.ajax文档

data
Type: PlainObject or String
Data to be sent to the server. It is converted to a query string, if not already a string. 
It's appended to the url for GET-requests. See processData option to prevent this automatic
processing. Object must be Key/Value pairs. If value is an Array, jQuery serializes 
multiple values with same key based on the value of the traditional setting

重要的是 Object must be Key/Value pairs.