CORS实现跨域Ajax

Posted 失落的黎明

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客户端

#!/usr/bin/env python
import tornado.ioloop
import tornado.web


class MainHandler(tornado.web.RequestHandler):
    def get(self, *args, **kwargs):
        self.render(\'index.html\')
    def post(self, *args, **kwargs):
        self.render(\'index.html\')

class CorsHandler(tornado.web.RequestHandler):
    def get(self, *args, **kwargs):
        self.render(\'index.html\')
    def post(self, *args, **kwargs):
        self.render(\'index.html\')
settings ={
    \'template_path\':\'views\',#html文件模板路径配置
    \'static_path\':\'statics\',#css,js文件路径配置
    \'static_url_prefix\':\'/sss/\',
}
application = tornado.web.Application([
        (r"/index", MainHandler),
    (r"/cors", CorsHandler),
        ],**settings)
if __name__ == "__main__":
    application.listen(8000)
    tornado.ioloop.IOLoop.instance().start()
app.py
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
     <input type="button" value="Jsonp" onclick="JsonpAjax();">
    <input type="button" value="DOJsonp" onclick="DoJsonpAjax();">
    <script src="{{static_url(\'jquery-3.1.1.js\')}}"></script>
    <script>
/
         function DoJsonpAjax() {
            $.ajax({
            url:\'http://tao.com:8001/cors\',
            type:\'POST\',
            data:{\'k1\':\'v1\'},
            success:function (arg) {
                console.log(arg)
            }
        })
        }
        function JsonpAjax() {
            $.ajax({
            url:\'http://tao.com:8001/cors\',
            type:\'PUT\',
            headers:{\'h1\':\'HH1\'},
            data:{\'k1\':\'v1\'},
            xhrFields:{withCredentials:true},
            success:function (arg) {
                console.log(arg)
            }
        })
        }
//        function DoJsonpAjax() {
////            var tag = document.createElement(\'script\');
////            tag.src = "http://www.jxntv.cn/data/jmd-jxtv2.html?callback=list";
////            document.head.appendChild(tag);
////
////            document.head.removeChild(tag);
//////
//            $.ajax({
//                url: "http://tao.com:8001/index",
//                type:"POST",
//                dataType: \'jsonp\',
//                jsonp:\'callback\',//相当于在url: "http://tao.com:8001/index?callback= xxoo",
//                jsonpCallback: "xxoo"//相当于在url: "http://tao.com:8001/index?callback= xxoo",
//            })
//        }
    </script>
</body>
</html>
index.html

服务端

#!/usr/bin/env python
import tornado.ioloop
import tornado.web


class MainHandler(tornado.web.RequestHandler):
    def get(self, *args, **kwargs):
        callback = self.get_argument(\'callback\')
        self.write("{}([11,22,33])".format(callback))
    def post(self, *args, **kwargs):
        self.write(\'t2.post\')
class CorsHandler(tornado.web.RequestHandler):
    def get(self, *args, **kwargs):
        self.write(\'index.get\')
    def post(self, *args, **kwargs):
        self.set_header("Access-Control-Allow-Origin","http://taochen.com:8000")
        self.write(\'index.post\')
    def options(self, *args, **kwargs):
        self.set_header("Access-Control-Allow-Origin", "http://taochen.com:8000")
        self.set_header("Access-Control-Allow-Methods", "PUT,DELETE")
        self.set_header("Access-Control-Allow-Headers", "h1")
        self.set_header("Access-Control-Allow-Credentials",\'true\')
    def put(self, *args, **kwargs):
        print(self.cookies)
        self.set_cookie(\'kk\',\'kkk2\')
        self.set_header("Access-Control-Allow-Origin", "http://taochen.com:8000")
        self.set_header("Access-Control-Allow-Credentials", \'true\')
        self.write("ok")
settings ={
    \'template_path\':\'views\',#html文件模板路径配置
    \'static_path\':\'statics\',#css,js文件路径配置
    \'static_url_prefix\':\'/sss/\',
}
application = tornado.web.Application([
        (r"/index", MainHandler),
    (r"/cors", CorsHandler),
        ],**settings)
if __name__ == "__main__":
    application.listen(8001)
    tornado.ioloop.IOLoop.instance().start()
app.py

 

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