Android 集成支付宝支付

String orderInfo = getOrderInfo(order);

/**

• 特别注意，这里的签名逻辑需要放在服务端，切勿将私钥泄露在代码中！

*/

String sign = sign(orderInfo);

try {

/**

• 仅需对sign 做URL编码

*/

sign = URLEncoder.encode(sign, “UTF-8”);

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

/**

• 完整的符合支付宝参数规范的订单信息

*/

final String payInfo = orderInfo + “&sign=”" + sign + “”&" + getSignType();

Runnable payRunnable = new Runnable() {

@Override

public void run() {

// 构造PayTask 对象

PayTask alipay = new PayTask(context);

// 调用支付接口，获取支付结果

String result = alipay.pay(payInfo, true);

Message msg = new Message();

msg.what = SDK_PAY_FLAG;

msg.obj = result;

mHandler.sendMessage(msg);

}

};

// 必须异步调用

Thread payThread = new Thread(payRunnable);

payThread.start();

}

@SuppressLint(“HandlerLeak”)

private Handler mHandler = new Handler() {

@SuppressWarnings(“unused”)

public void handleMessage(Message msg) {

switch (msg.what) {

case SDK_PAY_FLAG: {

PayResult payResult = new PayResult((String) msg.obj);

/**

• 同步返回的结果必须放置到服务端进行验证（验证的规则请看https://doc.open.alipay.com/doc2/

• detail.htm?spm=0.0.0.0.xdvAU6&treeId=59&articleId=103665&

• docType=1) 建议商户依赖异步通知

*/

String resultInfo =