需求：
（django）使用XMLHttpRequest和jQuery实现Ajax加法运算
url.py:
from django.conf.urls import url
from hello import views
urlpatterns = [
url(r‘add/‘, views.add, name=‘add‘),
url(r‘add_number/‘, views.add_number, name=‘add_number‘),
]
add.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<h1>XMLHttpRequest-Ajax请求</h1>
<input type="button" onclick="XmlRequest();" value="发送请求">
<h1>jQuery-Ajax请求</h1>
<input type="button" onclick="JqRequest();" value="发送请求">
<script src="http://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript">
function XmlRequest() {
var xhr = new XMLHttpRequest();
// 定义回调函数
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
//已经接收到全部响应数据，执行以下操作
var data = xhr.responseText;
console.log(data);
}
};
// 指定连接方式和地址--文件方式
xhr.open(‘POST‘, {% url ‘add_number‘ %}, true);
// 设置请求头
xhr.setRequestHeader(‘Content-Type‘, ‘application/x-www-form-urlencoded;charset=UTF-8‘);
// 发送请求
xhr.send(‘n1=2;n2=4;‘);
}
function JqRequest() {
$.post({
url: {% url ‘add_number‘ %},
data: {"n1": 222, "n2": 444},
dataType: ‘text‘,
success: function (data, statusText, xmlHttpRequest) {
console.log(data);
}
});
}
</script>
</body>
</html>
views.py
from django.http import HttpResponse
from django.shortcuts import render
from django.views.decorators.csrf import csrf_exempt
def add(request):
return render(request, ‘add.html‘)
@csrf_exempt
def add_number(request):
method = request.method
n1 = request.POST.get(‘n1‘)
n2 = request.POST.get(‘n2‘)
result = int(n1) + int(n2)
content = ‘{"method":%s,"result":%s}‘ % (method, result)
return HttpResponse(content)
测试结果如：
时间： 2024-10-16 02:17:48