Jsonp实现跨域请求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\') 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), ],**settings) if __name__ == "__main__": application.listen(8000) tornado.ioloop.IOLoop.instance().start()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <input type="button" value="Jsonp" onclick="DoJsonpAjax();"> <script src="{{static_url(\'jquery-3.1.1.js\')}}"></script> <script> function xxoo(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", 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>
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\') 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), ],**settings) if __name__ == "__main__": application.listen(8001) tornado.ioloop.IOLoop.instance().start()
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