JavaScript Ajax 请求 vs jQuery $.ajax

问题描述

注意:我粘贴了比 ajax 调用更多的代码，以防代码是(部分)导致问题的原因.但是，我不认为是这样，因此您最好将注意力集中在 ajax 和 jAjax 函数上.
另请注意，由于对此问题的评论(带有赞成票)说我的代码难以破译，我很乐意澄清需要澄清的内容，如果这可以证明是找到问题的关键.
谢谢.

NOTE: I've pasted more code than just the ajax calls, on the off chance that code is (part of) what's causing the problem. I don't think it is, however, so you're probably better off focussing on the ajax and jAjax functions a bit further down.
Also note that, since there's a comment (with upvote) on this question saying my code is hard to decipher, I'd happily clarify what needs clarifying if that could prove to be the key in finding the problem.
Thanks.

事情就是这样.我正在尝试放弃 jQuery，因为我唯一使用的是 $.ajax() 方法，并且包括像 jQuery 这样的整个库仅用于 1 个功能是 IMO 疯狂的.我什至不需要 $.ajax 方法的全部功能，因此我编写了自己的 ajax 函数.

Here's the thing. I'm trying to ditch jQuery, since the only thing I use is the $.ajax() method, and including an entire lib like jQuery for just 1 feature is IMO crazy. I don't even need the full functionality of the $.ajax method anyway, hence I wrote my own ajax function.

问题是:它不起作用，我似乎无法弄清楚原因.我正在尝试将对象发送到服务器(特别是:控制器中的 ajaxAction - 使用 Zend FW).下面是 javascript 代码，以及 firebug 控制台告诉我的内容的摘要.

The problem is: it's not working, and I can't seem to figure out why. I'm trying to send objects to the server (specifically: ajaxAction in the controller - using Zend FW). Below is the javascript code, and a summary of what the firebug console tells me.

if (!String.prototype.trim)
{
    String.prototype.trim = function()
    {
        "use strict";
        return this.replace(/^ss*/, '').replace(/ss*$/, '');
    };
}

function getUrl(action,controller)
{
    var base,uri;
    base = window.location.href.replace('http://'+window.location.host,'');
    if (base.length > 1)
    {
        base = base.substring(1,base.length).split('/');
        controller = controller || base[0];
        base[0] = controller || base[0];
        base[1] = action || base[1];
        return '/'+base.join('/');
    }
    controller = controller || 'index';
    action = action || 'ajax';
    return base+controller+'/'+action;
}

function formalizeObject(obj,recursion)
{
    recursion = recursion || false;
    if (typeof obj !== 'object')
    {
        throw new Error('no object provided');
    }
    var ret = '';
    for (var i in obj)
    {
        if (!obj.hasOwnProperty(i) || typeof obj[i] === 'function')
        {
            continue;
        }
        if (recursion)
        {
            ret +='['+i+']';
        }
        else
        {
            ret += (ret.length > 0 ? '&' : '') + i.toString(); 
        }
        if (typeof obj[i] === 'object')
        {
            ret += formalizeObject(obj[i],true);
            continue;
        }
        ret += '='+obj[i].toString();
    }
    if (recursion)
    {
        return ret;
    }
    return encodeURI(ret);
}

function success()
{
    if (this.readyState===4 && this.status===200)
    {
        console.log(this.responseText);
    }
}

function ajax(str,url,method,json)
{
    var ret;
    json = json || false;
    str = str || {};
    method = method || 'POST';
    url = url || getUrl();
    str = 
    str = (typeof str === 'object' ? str : {data:str});
    try
    {
        ret = new XMLHttpRequest();
    }
    catch (error)
    {
        try
        {
            ret= new ActiveXObject('Msxml2.XMLHTTP');
        }
        catch(error)
        {
            try
            {
                ret= new ActiveXObject('Microsoft.XMLHTTP');
            }
            catch(error)
            {
                throw new Error('no Ajax support?');
            }
        }
    }
    if (typeof ret !== 'object')
    {
        throw new Error('No Ajax, FFS');
    }
    ret.open(method, url, true);
    ret.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    ret.setRequestHeader('Content-type', (json ? 'application/json' : 'application/x-www-form-urlencode'));
    ret.onreadystatechange = success;
    ret.send((json ? JSON.stringify(str) : formalizeObject(str)));
    return true;
}

function jAjax(str,url)
{
    $.ajax(
    {
        url : url,
        data: str,
        type: 'POST',
        success: function(res)
        {
            console.log(res);
        }
    });
}

我尝试发出 Ajax 请求的四种方式:

Four ways in which I've tried to make the Ajax request:

jAjax({data:{foo:'bar'}},getUrl());//1
jAjax({data:{foo:'bar'}},getUrl(),true);//2
ajax({data:{foo:'bar'}},getUrl());//3
ajax({data:{foo:'bar'}},getUrl(),true);//4

1. jAjax({data:{foo:'bar'}},getUrl());:这很好用:

[]{"ajax":true,"controller":"index","action":"ajax","module":"default","identity":{},"data":{"foo:酒吧"}}参数:data[foo] 'bar' 来源:data%5Bfoo%5D=Bar(来自 FB 控制台的 POST 选项卡)头文件:application/x-www-form-urlencoded；字符集=UTF-8
所有这些都发送到以下网址:http://www.foo.bar/index/ajax?data%5Bfoo%5D=bar

[]{"ajax":true,"controller":"index","action":"ajax","module":"default","identity":{},"data":{"foo":"Bar"}} Parameters: data[foo] 'bar' And Source: data%5Bfoo%5D=Bar (from POST tab in FB console) Header: application/x-www-form-urlencoded; charset=UTF-8
All of this was sent to the following url: http://www.foo.bar/index/ajax?data%5Bfoo%5D=bar

public function ajaxAction()
{
    $this->_helper->layout->disableLayout();
    $this->getHelper('viewRenderer')->setNoRender();
    $this->_helper->getHelper('AjaxContext')->addActionContext( 'ajax' , 'json' )
                                            ->initContext('json');
    if($this->getRequest()->isPost() && $this->getRequest()->isXmlHttpRequest())
    {
        echo json_encode(array_merge(array('ajax'=>true),$this->_getAllParams()));
    }
    else
    {
        throw new Exception('no ajax call made??');
    }
}

ret.setRequestHeader('Content-type', 'application/x-www-form-urlencode');

ret.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');