Django 解决同源跨域问题
目录由于浏览器具有同源策略的限制：在发送Ajax请求时，如果当前浏览器的URL是a.com，而页面中向b.com发送ajax请求，请求可以正常方法，但数据回到浏览器时，浏览器就会阻止。在b.com中设置一个响应头就可以解决问题。
1 site a
1.1 urls 配置
from django.urls import path,re_path
from app01 import views
urlpatterns = [
# path('admin/', admin.site.urls),
re_path('^index/$',views.IndexView.as_view()),
re_path('^hello/$',views.HelloView.as_view()),
]
1.2 app01.views配置
from django.shortcuts import render, HttpResponse
from django.views import View
# Create your views here.
class IndexView(View):
def get(self, request, *args, **kwargs):
return render(request=request, template_name='index.html')
class HelloView(View):
def get(self, request, *args, **kwargs):
return HttpResponse('hello, it is a.com.')
1.3 index.html配置
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>a.com</h1>
<input type="button" value="b.com" onclick="localSite()">
<pre></pre>
<input type="button" value="b.com" onclick="remoteSite()">
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.4/jquery.min.js"></script>
<script>
function localSite() {
$.ajax({
url:"http://127.0.0.1:8001/hello/",
type:"get",
success: function (result) {
console.log(result);
},
error: function () {
console.log('Send Request Failed!');
}
})
}
function remoteSite() {
$.ajax({
url: "http://127.0.0.1:8002/hello/",
type: "get",
success: function (result) {
console.log(result);
},
error: function () {
console.log('Send Request Failed...')
}
})
}
</script>
</body>
</html>
2 site b
2.1 urls 配置
from django.urls import path,re_path
from app01 import views
urlpatterns = [
# path('admin/', admin.site.urls),
re_path(r'hello/$',views.helloView),
]
2.2 app01.views配置
from django.shortcuts import render,HttpResponse
# Create your views here.
def helloView(request):
if request.method == 'GET':
result = HttpResponse('it is b.com')
# 以下两种方式都可以，让浏览器放行
# result.headers['Access-Control-Allow-Origin'] = "*"
# result['Access-Control-Allow-Origin'] = "*"
return result