在近期,公司需要開發一個關于線上支付的子產品,是以需要用到第三方支付平台
轉載請注明出處:http://blog.csdn.net/ht_android/article/details/45307165
經過一周多的時間對這兩種支付平台的研究,完成功能後将經驗分享給大家,希望能幫助到有需求的朋友。
首先是支付寶的開發資料方面:
接口申請url
https://b.alipay.com/order/productDetail.htm?productId=2014110308141993
API開發文檔
http://download.alipay.com/public/api/base/WS_MOBILE_PAY_SDK_BASE.zip
申請流程
注冊支付寶賬号——進行實名認證——送出稽核資料——稽核通過
備注:申請通過後會獲得:合作者身份ID(PID),該ID在項目配置中需要用到
開發流程:
第一步:
下載下傳API開發文檔後,即可擷取官方Demo,該Demo中需要将稽核通過後擷取的PID替換,并且輸入支付寶收款賬戶即可。這裡非常簡單,就不過多叙述。
第二步:
官方Api開發文檔中,存在一個openssl的檔案夾,該檔案夾主要是用于生成支付寶所需要用到的公鑰以及私鑰。打開該檔案夾可以看到詳細的生成方式,根據提示生成公鑰及私鑰,請注意,密鑰需要經過pkcs8二次加密。
第三步:
将生成的公鑰和私鑰配置到Demo中。
第四步(可省略):
為了友善後期維護,建議将支付寶相關的方法及配置項抽取出來做為單獨的一個類,後期需要使用直接調用即可。代碼如下:
<code class="hljs java has-numbering"><span class="hljs-keyword">package</span> com.alipay.pay;
<span class="hljs-keyword">import</span> java.io.UnsupportedEncodingException;
<span class="hljs-keyword">import</span> java.net.URLEncoder;
<span class="hljs-keyword">import</span> java.text.DecimalFormat;
<span class="hljs-keyword">import</span> java.text.SimpleDateFormat;
<span class="hljs-keyword">import</span> java.util.Date;
<span class="hljs-keyword">import</span> java.util.Locale;
<span class="hljs-keyword">import</span> java.util.Random;
<span class="hljs-keyword">import</span> android.app.Activity;
<span class="hljs-keyword">import</span> android.os.Handler;
<span class="hljs-keyword">import</span> android.os.Message;
<span class="hljs-keyword">import</span> android.support.v4.app.FragmentActivity;
<span class="hljs-keyword">import</span> android.view.View;
<span class="hljs-keyword">import</span> android.widget.Toast;
<span class="hljs-keyword">import</span> com.alipay.sdk.app.PayTask;
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Alipay</span> {</span>
<span class="hljs-comment">// 商戶PID</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> String PARTNER = <span class="hljs-string">"******"</span>;
<span class="hljs-comment">// 商戶收款賬号</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> String SELLER = <span class="hljs-string">"***@alipay.com"</span>;
<span class="hljs-comment">// 商戶私鑰,pkcs8格式</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> String RSA_PRIVATE = <span class="hljs-string">"*****"</span>;
<span class="hljs-comment">// 支付寶公鑰</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> String RSA_PUBLIC = <span class="hljs-string">"******"</span>;
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> <span class="hljs-keyword">int</span> SDK_PAY_FLAG = <span class="hljs-number">1</span>;
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> <span class="hljs-keyword">int</span> SDK_CHECK_FLAG = <span class="hljs-number">2</span>;
<span class="hljs-keyword">private</span> Handler mHandler;
<span class="hljs-keyword">private</span> Activity activity;
<span class="hljs-keyword">private</span> String orderNo;
<span class="hljs-keyword">public</span> <span class="hljs-title">Alipay</span>(Handler handler, Activity activity) {
mHandler = handler;
<span class="hljs-keyword">this</span>.activity = activity;
}
<span class="hljs-javadoc">/**
* call alipay sdk pay. 調用SDK支付
*
*/</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">pay</span>(PayInfo payinfo) {
<span class="hljs-comment">// 訂單</span>
DecimalFormat df = <span class="hljs-keyword">new</span> DecimalFormat(<span class="hljs-string">"0.00"</span>);
String orderInfo = getOrderInfo(payinfo.getName(), payinfo.getDesc()
+ <span class="hljs-string">" "</span>, df.format(payinfo.getPrice() * payinfo.getRate()));
<span class="hljs-comment">// 對訂單做RSA 簽名</span>
String sign = sign(orderInfo);
<span class="hljs-keyword">try</span> {
<span class="hljs-comment">// 僅需對sign 做URL編碼</span>
sign = URLEncoder.encode(sign, <span class="hljs-string">"UTF-8"</span>);
} <span class="hljs-keyword">catch</span> (UnsupportedEncodingException e) {
e.printStackTrace();
}
<span class="hljs-comment">// 完整的符合支付寶參數規範的訂單資訊</span>
<span class="hljs-keyword">final</span> String payInfo = orderInfo + <span class="hljs-string">"&sign=\""</span> + sign + <span class="hljs-string">"\"&"</span>
+ getSignType();
Runnable payRunnable = <span class="hljs-keyword">new</span> Runnable() {
<span class="hljs-annotation">@Override</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">run</span>() {
<span class="hljs-comment">// 構造PayTask 對象</span>
PayTask alipay = <span class="hljs-keyword">new</span> PayTask(activity);
<span class="hljs-comment">// 調用支付接口,擷取支付結果</span>
String result = alipay.pay(payInfo);
Message msg = <span class="hljs-keyword">new</span> Message();
msg.what = SDK_PAY_FLAG;
msg.obj = result;
mHandler.sendMessage(msg);
}
};
<span class="hljs-comment">// 必須異步調用</span>
Thread payThread = <span class="hljs-keyword">new</span> Thread(payRunnable);
payThread.start();
}
<span class="hljs-javadoc">/**
* check whether the device has authentication alipay account.
* 查詢終端裝置是否存在支付寶認證賬戶
*
*/</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">check</span>(View v) {
Runnable checkRunnable = <span class="hljs-keyword">new</span> Runnable() {
<span class="hljs-annotation">@Override</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">run</span>() {
<span class="hljs-comment">// 構造PayTask 對象</span>
PayTask payTask = <span class="hljs-keyword">new</span> PayTask(activity);
<span class="hljs-comment">// 調用查詢接口,擷取查詢結果</span>
<span class="hljs-keyword">boolean</span> isExist = payTask.checkAccountIfExist();
Message msg = <span class="hljs-keyword">new</span> Message();
msg.what = SDK_CHECK_FLAG;
msg.obj = isExist;
mHandler.sendMessage(msg);
}
};
Thread checkThread = <span class="hljs-keyword">new</span> Thread(checkRunnable);
checkThread.start();
}
<span class="hljs-javadoc">/**
* get the sdk version. 擷取SDK版本号
*
*/</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">getSDKVersion</span>() {
PayTask payTask = <span class="hljs-keyword">new</span> PayTask(activity);
String version = payTask.getVersion();
Toast.makeText(activity, version, Toast.LENGTH_SHORT).show();
}
<span class="hljs-javadoc">/**
* create the order info. 建立訂單資訊
*
*/</span>
<span class="hljs-keyword">public</span> String <span class="hljs-title">getOrderInfo</span>(String subject, String body, String price) {
<span class="hljs-comment">// 簽約合作者身份ID</span>
String orderInfo = <span class="hljs-string">"partner="</span> + <span class="hljs-string">"\""</span> + PARTNER + <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 簽約賣家支付寶賬号</span>
orderInfo += <span class="hljs-string">"&seller_id="</span> + <span class="hljs-string">"\""</span> + SELLER + <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 商戶網站唯一訂單号</span>
orderInfo += <span class="hljs-string">"&out_trade_no="</span> + <span class="hljs-string">"\""</span> + getOutTradeNo() + <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 商品名稱</span>
orderInfo += <span class="hljs-string">"&subject="</span> + <span class="hljs-string">"\""</span> + subject + <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 商品詳情</span>
orderInfo += <span class="hljs-string">"&body="</span> + <span class="hljs-string">"\""</span> + body + <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 商品金額</span>
orderInfo += <span class="hljs-string">"&total_fee="</span> + <span class="hljs-string">"\""</span> + price + <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 伺服器異步通知頁面路徑</span>
orderInfo += <span class="hljs-string">"¬ify_url="</span> + <span class="hljs-string">"\""</span> + <span class="hljs-string">"http://notify.msp.hk/notify.htm"</span>
+ <span class="hljs-string">"\""</span>;
<span class="hljs-comment">// 服務接口名稱, 固定值</span>
orderInfo += <span class="hljs-string">"&service=\"mobile.securitypay.pay\""</span>;
<span class="hljs-comment">// 支付類型, 固定值</span>
orderInfo += <span class="hljs-string">"&payment_type=\"1\""</span>;
<span class="hljs-comment">// 參數編碼, 固定值</span>
orderInfo += <span class="hljs-string">"&_input_charset=\"utf-8\""</span>;
<span class="hljs-comment">// 設定未付款交易的逾時時間</span>
<span class="hljs-comment">// 預設30分鐘,一旦逾時,該筆交易就會自動被關閉。</span>
<span class="hljs-comment">// 取值範圍:1m~15d。</span>
<span class="hljs-comment">// m-分鐘,h-小時,d-天,1c-當天(無論交易何時建立,都在0點關閉)。</span>
<span class="hljs-comment">// 該參數數值不接受小數點,如1.5h,可轉換為90m。</span>
orderInfo += <span class="hljs-string">"&it_b_pay=\"30m\""</span>;
<span class="hljs-comment">// extern_token為經過快登授權擷取到的alipay_open_id,帶上此參數使用者将使用授權的賬戶進行支付</span>
<span class="hljs-comment">// orderInfo += "&extern_token=" + "\"" + extern_token + "\"";</span>
<span class="hljs-comment">// 支付寶處理完請求後,目前頁面跳轉到商戶指定頁面的路徑,可空</span>
orderInfo += <span class="hljs-string">"&return_url=\"m.alipay.com\""</span>;
<span class="hljs-comment">// 調用銀行卡支付,需配置此參數,參與簽名, 固定值 (需要簽約《無線銀行卡快捷支付》才能使用)</span>
<span class="hljs-comment">// orderInfo += "&paymethod=\"expressGateway\"";</span>
<span class="hljs-keyword">return</span> orderInfo;
}
<span class="hljs-javadoc">/**
* get the out_trade_no for an order. 生成商戶訂單号,該值在商戶端應保持唯一(可自定義格式規範)
*
*/</span>
<span class="hljs-keyword">public</span> String <span class="hljs-title">getOutTradeNo</span>() {
SimpleDateFormat format = <span class="hljs-keyword">new</span> SimpleDateFormat(<span class="hljs-string">"MMddHHmmss"</span>,
Locale.getDefault());
Date date = <span class="hljs-keyword">new</span> Date();
String key = format.format(date);
Random r = <span class="hljs-keyword">new</span> Random();
key = key + r.nextInt();
key = key.substring(<span class="hljs-number">0</span>, <span class="hljs-number">15</span>);
String md5 = Constants.MD5(key);
<span class="hljs-keyword">this</span>.orderNo = md5;
<span class="hljs-keyword">return</span> md5;
}
<span class="hljs-javadoc">/**
* 擷取已經生産的訂單編号
*
*<span class="hljs-javadoctag"> @return</span>
*/</span>
<span class="hljs-keyword">public</span> String <span class="hljs-title">getOrderNo</span>() {
<span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>.orderNo;
}
<span class="hljs-javadoc">/**
* sign the order info. 對訂單資訊進行簽名
*
*<span class="hljs-javadoctag"> @param</span> content
* 待簽名訂單資訊
*/</span>
<span class="hljs-keyword">public</span> String <span class="hljs-title">sign</span>(String content) {
<span class="hljs-keyword">return</span> SignUtils.sign(content, RSA_PRIVATE);
}
<span class="hljs-javadoc">/**
* get the sign type we use. 擷取簽名方式
*
*/</span>
<span class="hljs-keyword">public</span> String <span class="hljs-title">getSignType</span>() {
<span class="hljs-keyword">return</span> <span class="hljs-string">"sign_type=\"RSA\""</span>;
}
}
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從上面代碼可以看出,程式的主要運作流程是:通過開啟一個子線程去調用支付寶的支付功能,擷取到支付結果後,通過Handler通知UI線程,根據支付結果去顯示不同的。
到這裡基本上整個開發流程已經大緻完成了,具體細節根據需求去修改即可。官方建議支付完成後,将擷取到的支付結果上傳到自己的伺服器,通過官方提供的API進行驗證,建議添加該流程。
如果有疑問,可以通過QQ381959281聯系作者進行交流