官方文档： https://developers.facebook.com/docs/reference/dialogs/pay/
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="https://www.facebook.com/2008/fbml"> <head> <title>Facebook Credits Demo</title> </head> <body> <h2>Buy something...</h2> <button onclick="buy()">Buy</button> <div id="fb-ui-return-data"></div> <div id="fb-root"></div> <script src="http://connect.facebook.net/en_US/all.js"></script> <script> FB.init({appId: "YOUR_APP_ID", status: true, cookie: true}); // 这里初始化FB的接口，接入你的应用 // The dialog only opens if you've implemented the // Credits Callback payments_get_items. function buy() { var obj = { method: 'pay', // FB.UI调用的弹窗类型。这里定义为支付弹窗 action: 'buy_item', // 支付的动作。其他为buy_item（买商品）,buy_credits（买平台币）,earn_credits（赚取平台币）,earn_currency. // You can pass any string, but your payments_get_items must // be able to process and respond to this data. order_info: {'item_id': '1a'}, // 买商品的话是商品的信息 dev_purchase_params: {'oscif': true} // 这里不太清楚，好像是商品的价格是否用当地的货币价显示 }; FB.ui(obj, js_callback); // FB的UI调用，obj为参数，js_callback为回调函数 } // This JavaScript callback handles FB.ui's return data and differs // from the Credits Callbacks. var js_callback = function(data) { if (data['order_id']) { // 当订单成功的时候，会返回商品在FB平台的商品id // Facebook only returns an order_id if you've implemented // the Credits Callback payments_status_update and settled // the user's placed order. // Notify the user that the purchased item has been delivered // without a complete reload of the game. write_callback_data( "<br><b>Transaction Completed!</b> </br></br>" + "Data returned from Facebook: </br>" + "Order ID: " + data['order_id'] + "</br>" + "Status: " + data['status']); } else if (data['error_code']) { // 出现某X非支付成功操作的时候，例如：点击支付窗口的取消按钮 // Appropriately alert the user. write_callback_data( "<br><b>Transaction Failed!</b> </br></br>" + "Error message returned from Facebook:</br>" + data['error_code'] + " - " + data['error_message']); } else { // 其他未知名错误 // Appropriately alert the user. write_callback_data("<br><b>Transaction failed!</b>"); } }; function write_callback_data(str) { document.getElementById('fb-ui-return-data').innerHTML=str; } </script> </body> </html>