当使用Django 做接口时,被html5 或者app访问时 存在跨域问题 导致无法请求到数据,具体解决办法如下;
跨域问题解决 安装pip install django-cors-headers
修改Django下setting.py
INSTALLED_APPS = [
...
'corsheaders',
...
] MIDDLEWARE = (
...
'corsheaders.middleware.CorsMiddleware',
'django.middleware.common.CommonMiddleware', # 注意顺序
...
)
#跨域增加忽略
CORS_ALLOW_CREDENTIALS = True
CORS_ORIGIN_ALLOW_ALL = True
CORS_ORIGIN_WHITELIST = (
'*'
) CORS_ALLOW_METHODS = (
'DELETE',
'GET',
'OPTIONS',
'PATCH',
'POST',
'PUT',
'VIEW',
) CORS_ALLOW_HEADERS = (
'XMLHttpRequest',
'X_FILENAME',
'accept-encoding',
'authorization',
'content-type',
'dnt',
'origin',
'user-agent',
'x-csrftoken',
'x-requested-with',
'Pragma',
)
测试html代码
<script src="https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
function copyText(){
$.ajax({
type: 'GET',
dataType:'jsonp',
jsonp:"callback",
url: 'http://127.0.0.1:8000/hello',
success: function (data) {
console.log(data)
},
error: function () {
console.log("有问题1111")
}
});
}
</script> <button onclick="copyText()">复制文本</button> 当ajax采用jsonp时 需要用以下调用方式
from django.http import HttpResponse
import json
def hello(request):
callback = request.GET['callback']
response = HttpResponse('{0}({1})'.format(callback,json.dumps({"key":"value"})))
return response
或者报 SyntaxError: unexpected token: ':' 或者 SyntaxError: missing ; before statement