/**
* 输出jsonp
* @param string $js_callback
*/
public function returnJsonp($js_callback = 'callback')
{
//为了支持跨域操作
if (Application::getRequest()->checkIEByUserAgent()) {
//IE
header('Content-type: text/javascript;charset=utf-8');
//解决jsonp种cookie在ie浏览器下被拦截
header("P3P: CP=CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR");
} else {
header('Content-type: application/javascript;charset=utf-8');
}
echo $js_callback . "(" . json_encode($this->json_format) . ");";
exit;
}
