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django ajax 请求记录

关于csrf是什么东西请看这里，我们需要知道它是一种安全机制。ajax的解决方式原理上面的链接已经说的很清楚。下面开始记录

get请求

前端

$('#btn_get').click(function () {
    $.get('/get/', {'key1': 'value1'}, function (data,status) {
        alert(data+" status :"+status)
    })
});

django 处理

def deal_get(request):
if request.method == 'GET':
    value = request.GET['key1']
    context = {'key': value, 'method': 'get'}
    return HttpResponse(json.dumps(context))

post请求

post请求和get请求方式大同小异，但是需要注意一个的就是django的csrf跨站点防护。

前端，和get无差别

$('#btn_post').click(function () {
    $.post('/post/', {'key1': 'value1'}, function (data,status) {
        alert(data+" status :"+status)
    })
});

需要注意的是，需要在$(document).ready()方法调用如下方法获取cookie中的csrf cookie。

/*====================django ajax ======*/
jQuery(document).ajaxSend(function (event, xhr, settings) {
    function getCookie(name) {
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }

    function sameOrigin(url) {
        // url could be relative or scheme relative or absolute
        var host = document.location.host; // host + port
        var protocol = document.location.protocol;
        var sr_origin = '//' + host;
        var origin = protocol + sr_origin;
        // Allow absolute or scheme relative URLs to same origin
        return (url == origin || url.slice(0, origin.length + 1) == origin + '/') ||
            (url == sr_origin || url.slice(0, sr_origin.length + 1) == sr_origin + '/') ||
            // or any other URL that isn't scheme relative or absolute i.e relative.
            !(/^(\/\/|http:|https:).*/.test(url));
    }

    function safeMethod(method) {
        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
    }

    if (!safeMethod(settings.type) && sameOrigin(settings.url)) {
        xhr.setRequestHeader("X-CSRFToken", getCookie('csrftoken'));
    }
});
/*===============================django ajax end===*/

后台

def deal_post(request):
if request.method == 'POST':
    value = request.POST['key1']
    context = {'key': value, 'method': 'post'}
    return HttpResponse(json.dumps(context))

很简单的功能，记录下来以备后记。源码地址：https://github.com/loopq/django_ajax_imple

django + ajax 请求过程记录

"django ajax 请求记录"

django ajax 请求记录

get请求

post请求

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