public function submit()
{
//请求业务参数详细
$req_data = '<direct_trade_create_req><notify_url>' . $this->notify_url . '</notify_url><call_back_url>' . $this->call_back_url . '</call_back_url><seller_account_name>' . $this->seller_email . '</seller_account_name><out_trade_no>' . $this->out_trade_no . '</out_trade_no><subject>' . $this->subject . '</subject><total_fee>' . $this->total_fee . '</total_fee></direct_trade_create_req>';
//必填
//构造要请求的参数数组，无需改动
$para_token = array("service" => "alipay.wap.trade.create.direct", "partner" => trim($this->alipay_config['partner']), "sec_id" => trim($this->alipay_config['sign_type']), "format" => $this->format, "v" => $this->v, "req_id" => $this->req_id, "req_data" => $req_data, "_input_charset" => trim(strtolower($this->alipay_config['input_charset'])));
//建立请求
$alipaySubmit = new AlipaySubmit($this->alipay_config);
$html_text = $alipaySubmit->buildRequestHttp($para_token);
//URLDECODE返回的信息
$html_text = urldecode($html_text);
//解析远程模拟提交后返回的信息
$para_html_text = $alipaySubmit->parseResponse($html_text);
//获取request_token
$request_token = $para_html_text['request_token'];
/**************************根据授权码token调用交易接口alipay.wap.auth.authAndExecute**************************/
//业务详细
$req_data = '<auth_and_execute_req><request_token>' . $request_token . '</request_token></auth_and_execute_req>';
//必填
//构造要请求的参数数组，无需改动
$parameter = array("service" => "alipay.wap.auth.authAndExecute", "partner" => trim($this->alipay_config['partner']), "sec_id" => trim($this->alipay_config['sign_type']), "format" => $this->format, "v" => $this->v, "req_id" => $this->req_id, "req_data" => $req_data, "_input_charset" => trim(strtolower($this->alipay_config['input_charset'])));
//建立请求
$alipaySubmit = new AlipaySubmit($this->alipay_config);
$html_text = $alipaySubmit->buildRequestForm($parameter, 'get', '正在跳转支付页面...');
return '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>支付宝即时到账交易接口接口</title>
</head>' . $html_text . '
</body>
</html>';
}