首先，作為一個菜鳥表示，雖然網上的集成框架很多，但是我要自己寫，就算被坑的死去活來也要自己寫。

1. 支付寶
這個支付寶的文檔是個好東西，挺簡單，挺容易看懂的，其次還有沙箱測試，表示支付寶一次通過很開心。 支付沙箱聯調指南
首先導包，這里使用 20170710 的包，提前說明如果使用沙箱需要在支付的activity中添加
EnvUtils.setEnv(EnvUtils.EnvEnum.SANDBOX);
支付的賬號和密碼去沙箱中獲取，支付沙箱聯調指南頁面的最下方，點擊沙箱工具，跳轉過后，頁面左側研發服務-沙箱賬號

@Overrideprotected void onCreate(Bundle savedInstanceState) {EnvUtils.setEnv(EnvUtils.EnvEnum.SANDBOX);super.onCreate(savedInstanceState);setContentView(R.layout.activity_pay);initView();}

這個直接上代碼：ALiPay.java

public class AliPay {// 2017/7/20 沙盒測試通過 代碼無誤//支付寶支付業務：沙箱使用app_idpublic static final String APPID = "2016102200739552";//支付寶支付業務：沙箱使用RSA2_PRIVATEpublic static final String RSA2_PRIVATE = "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";private static AliPay mAliPay;private Activity mContext;private PayListener mPayListener;private String orderTradeNo;private AliPay(Activity context) {mContext = context;}public static AliPay getInstance(Activity context) {if (mAliPay == null) {synchronized (AliPay.class) {if (mAliPay == null) {mAliPay = new AliPay(context);}}}return mAliPay;}public void startAliPay(final String signOrderInfo, PayListener listener) {mPayListener = listener;Runnable payRunnable = new Runnable() {@Overridepublic void run() {PayTask alipay = new PayTask(mContext);Map<String, String> result = alipay.payV2(signOrderInfo, true);Message msg = new Message();msg.obj = result;mHandler.sendMessage(msg);}};Thread payThread = new Thread(payRunnable);payThread.start();}private Handler mHandler = new Handler(Looper.getMainLooper()) {@SuppressWarnings("unchecked")public void handleMessage(Message msg) {PayResult payResult = new PayResult((Map<String, String>) msg.obj);String resultStatus = payResult.getResultStatus();String resultInfo = payResult.getResult();Log.i("resultinfo", resultInfo);if (mPayListener == null) {return;}// https://doc.open.alipay.com/doc2/detail.htm?spm=a219a.7629140.0.0.xN1NnL&treeId=204&articleId=105302&docType=1if (payResult == null) {mPayListener.onPayError("結果解析錯誤");return;}if (TextUtils.equals(resultStatus, "9000")) {//支付成功mPayListener.onPaySuccess();} else if (TextUtils.equals(resultStatus, "8000")) {//正在處理中，支付結果未知（有可能已經支付成功），請查詢商戶訂單列表中訂單的支付狀態mPayListener.onPayError("正在處理結果中");} else if (TextUtils.equals(resultStatus, "6001")) {//支付取消mPayListener.onPayCancel();} else if (TextUtils.equals(resultStatus, "6002")) {//網絡連接出錯mPayListener.onPayError("網絡連接出錯");} else if (TextUtils.equals(resultStatus, "4000")) {//支付錯誤mPayListener.onPayError("訂單支付失敗");} else {mPayListener.onPayError(resultInfo);}}};/*** 使用支付寶創建訂單信息* 這個簽名工作要放在后臺服務器中進行處理* 前端將 付訂單參數信息 上傳到服務器 后臺進行簽名處理后，將簽名后的訂單信息發回來** @param itemName* @param itemDescribe* @param itemPrice*/public Map createOrderParamMap(String itemName, String itemDescribe, double itemPrice, String itemTradeNo) {//這里默認使用rsa2私鑰Map<String, String> params = buildOrderParamMap(APPID, itemName, itemDescribe, itemPrice, itemTradeNo, true);return params;}public String createOrderInfo(Map<String, String> params) {return buildOrderParam(params);}/*** 構造支付訂單參數列表** @param app_id* @param itemName 商品名稱* @param itemDecribe 商品詳情* @param itemPrice 商品價格* @param rsa2 是否使用rsa2 建議true；* @return*/private Map<String, String> buildOrderParamMap(String app_id, String itemName, String itemDecribe, double itemPrice, String itemTradeNo, boolean rsa2) {Map<String, String> keyValues = new HashMap<String, String>();keyValues.put("app_id", app_id);keyValues.put("biz_content", "{\"timeout_express\":\"30m\",\"product_code\":\"QUICK_MSECURITY_PAY\",\"total_amount\":\"" + itemPrice + "\",\"subject\":\"" + itemName + "\",\"body\":\"" + itemDecribe + "\",\"out_trade_no\":\"" + itemTradeNo + "\"}");keyValues.put("charset", "utf-8");keyValues.put("method", "alipay.trade.app.pay");keyValues.put("sign_type", rsa2 ? "RSA2" : "RSA");keyValues.put("timestamp", Comm.formatNowTime());keyValues.put("version", "1.0");return keyValues;}/*** 構造支付訂單參數信息** @param map 支付訂單參數* @return*/private String buildOrderParam(Map<String, String> map) {List<String> keys = new ArrayList<String>(map.keySet());StringBuilder sb = new StringBuilder();StringBuilder s = new StringBuilder();for (int i = 0; i < keys.size() - 1; i++) {String key = keys.get(i);String value = map.get(key);sb.append(buildKeyValue(key, value, true));sb.append("&");s.append(key);s.append("=");s.append(value);s.append("&");}String tailKey = keys.get(keys.size() - 1);String tailValue = map.get(tailKey);sb.append(buildKeyValue(tailKey, tailValue, true));s.append(tailKey);s.append("=");s.append(tailValue);Log.i("orderinfo",s.toString());return sb.toString();}/*** 拼接鍵值對** @param key* @param value* @param isEncode* @return*/private static String buildKeyValue(String key, String value, boolean isEncode) {StringBuilder sb = new StringBuilder();sb.append(key);sb.append("=");if (isEncode) {try {sb.append(URLEncoder.encode(value, "UTF-8"));} catch (UnsupportedEncodingException e) {sb.append(value);}} else {sb.append(value);}return sb.toString();}/*** 要求外部訂單號必須唯一。** @return*/public String getOutTradeNo() {SimpleDateFormat format = new SimpleDateFormat("MMddHHmmss", Locale.getDefault());Date date = new Date();String key = format.format(date);Random r = new Random();key = key + r.nextInt();key = key.substring(0, 15);orderTradeNo = key;return key;}/*** 對支付參數信息進行簽名** @param map 待簽名授權信息* @return*/public String getSign(Map<String, String> map) {List<String> keys = new ArrayList<String>(map.keySet());// key排序Collections.sort(keys);StringBuilder authInfo = new StringBuilder();for (int i = 0; i < keys.size() - 1; i++) {String key = keys.get(i);String value = map.get(key);authInfo.append(buildKeyValue(key, value, false));authInfo.append("&");}String tailKey = keys.get(keys.size() - 1);String tailValue = map.get(tailKey);authInfo.append(buildKeyValue(tailKey, tailValue, false));String oriSign = SignUtils.sign(authInfo.toString(), RSA2_PRIVATE, true);String encodedSign = "";try {encodedSign = URLEncoder.encode(oriSign, "UTF-8");} catch (UnsupportedEncodingException e) {e.printStackTrace();}return "sign=" + encodedSign;} }

然后自定義一個支付結果接口: PayListener

public interface PayListener {//支付成功void onPaySuccess();//支付失敗void onPayError(String resultStatus);//支付取消void onPayCancel(); }

然后調用：
注意：
1、這里的signOrderInfo必須要從服務器獲取，我的后臺這里還是給力的，上傳訂單id就把signOrderInfo傳過來了，都不用自己寫，多虧了我的口才。
2、這里的orderInfo是是進行 URLEncoder.encode() 轉碼的（鍵為原文，值進行轉碼），具體內容可以打印出來看下，然后加密sign內容是使用原文（沒有進行轉碼）進行加密
3、這里的Base64.java PayResult.java SignUtils.java 去支付寶的demo中獲取（測試階段）
這里的Base64.java PayResult.java SignUtils.java 去支付寶的demo中獲取（測試階段）
這里的Base64.java PayResult.java SignUtils.java 去支付寶的demo中獲取（測試階段）

這里就是Demo的下載地址了 https://docs.open.alipay.com/54/104509

自己測試的時候可以這么寫：

AliPay aliPay = AliPay.getInstance(this); Map orderParamMap = aliPay.createOrderParamMap("商品名字", "商品描述", 0.01, "123123123123123"); String orderInfo = aliPay.createOrderInfo(orderParamMap); String sign = aliPay.getSign(orderParamMap); String signOrderInfo = orderInfo + "&" + sign;AliPay.getInstance(PayActivity.this).startAliPay(signOrderInfo, new PayListener() {@Overridepublic void onPaySuccess() {Comm.Tip(mContext, "支付成功");}@Overridepublic void onPayError(String resultStatus) {Comm.Tip(mContext, "支付失敗");}@Overridepublic void onPayCancel() {Comm.Tip(mContext, "支付取消");}});

2.微信支付
微信支付滿滿的都是坑，特別是官方Demo，看的我頭暈，然后還是沒弄好，很尷尬。
首先注意一個大坑：我們后臺申請接入時候簽名填寫錯誤，我就想說ios沒有簽名，安卓要簽名，然后導致了ios成功，安卓失敗，我找了一下午的原因。
注意：微信開發平臺的申請的應用簽名，如果在手機上安裝debug包獲取的簽名，那么只能debug包才能調用微信支付，如果是release包獲取的簽名，那么只有release包才能調用微信支付，當然，微信開發平臺上的簽名和包名都是可以更換的。
首先導個包，gradle方式也可以，然而我用AS下不下來，只好導包
簡單粗暴上代碼：WechatPay.java

public class WechatPay {private static WechatPay wechatPay;private Context mContext;private IWXAPI mIWXAPI;private PayListener mPayListener;private WechatPay(Activity context) {mContext = context;}public static WechatPay getInstance(Activity context) {if (wechatPay == null) {synchronized (WechatPay.class) {if (wechatPay == null) {wechatPay = new WechatPay(context);}}}return wechatPay;}/*** 初始化微信支付接口** @param appId*/public void init(String appId) {mIWXAPI = WXAPIFactory.createWXAPI(mContext, null);mIWXAPI.registerApp(appId);}/*** 獲取微信接口** @return*/public IWXAPI getWXApi() {return mIWXAPI;}/*** 調起支付** @param appId* @param partnerId* @param prepayId* @param nonceStr* @param timeStamp* @param sign*/public void startWeChatPay(String appId, String partnerId, String prepayId,String nonceStr, String timeStamp, String sign, PayListener listener) {mPayListener = listener;init(appId);if (!checkWx()) {if (listener != null) {listener.onPayError("未安裝微信或者微信版本過低");}return;}PayReq request = new PayReq();request.appId = appId;request.partnerId = partnerId;request.prepayId = prepayId;request.packageValue = "Sign=WXPay";request.nonceStr = nonceStr;request.timeStamp = timeStamp;request.sign = sign;mIWXAPI.sendReq(request);}/*** 響應支付回調** @param error_code* @param message*/public void onResp(int error_code, String message) {if (error_code == 0) {//支付成功mPayListener.onPaySuccess();} else if (error_code == -1) {//支付異常mPayListener.onPayError(message);} else if (error_code == -2) {//支付取消mPayListener.onPayCancel();}mPayListener = null;}//檢測微信客戶端是否支持微信支付private boolean checkWx() {return isWeixinAvilible() && mIWXAPI.isWXAppInstalled() && mIWXAPI.getWXAppSupportAPI() >= Build.PAY_SUPPORTED_SDK_INT;}/*** 判斷微信是否安裝** @return*/private boolean isWeixinAvilible() {return appIsAvilible("com.tencent.mm");}/*** 判斷app是否安裝** @param packageName* @return*/private boolean appIsAvilible(String packageName) {final PackageManager packageManager = mContext.getPackageManager();// 獲取packagemanagerList<PackageInfo> pinfo = packageManager.getInstalledPackages(0);// 獲取所有已安裝程序的包信息if (pinfo != null) {for (int i = 0; i < pinfo.size(); i++) {String pn = pinfo.get(i).packageName;if (pn.equals(packageName)) {return true;}}}return false;} }

其次是：WXPayEntryActivity .java

public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);if (WechatPay.getInstance(this) != null) {WechatPay.getInstance(this).getWXApi().handleIntent(getIntent(), this);} else {finish();}}@Overrideprotected void onNewIntent(Intent intent) {super.onNewIntent(intent);setIntent(intent);if (WechatPay.getInstance(this) != null) {WechatPay.getInstance(this).getWXApi().handleIntent(intent, this);}}@Overridepublic void onReq(BaseReq baseReq) {}@Overridepublic void onResp(BaseResp baseResp) {if (baseResp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {if (WechatPay.getInstance(this) != null) {WechatPay.getInstance(this).onResp(baseResp.errCode, baseResp.errStr);finish();}}} }

再來清單文件中：
改下第二行和最后一行的地址

<!-- 微信 --><activity android:name=".Controller.wxapi.WXPayEntryActivity"android:configChanges="orientation|keyboardHidden|navigation|screenSize"android:launchMode="singleTop"android:theme="@android:style/Theme.Translucent.NoTitleBar"/><activity-alias android:name=".wxapi.WXPayEntryActivity"android:exported="true"android:targetActivity=".Controller.wxapi.WXPayEntryActivity"/>

好的，現在開始調用：
我的order類當然也是后臺發給我的嘍

WechatPay.getInstance(PayActivity.this).startWeChatPay(order.getAppid(), order.getPartid(), order.getPrepayid(), order.getNoncestr(), order.getTimestamp(), order.getSign(), new PayListener() {@Overridepublic void onPaySuccess() {Comm.Tip(mContext, "支付成功");}@Overridepublic void onPayError(String resultStatus) {Comm.Tip(mContext, "支付失敗");}@Overridepublic void onPayCancel() {Comm.Tip(mContext, "支付取消");}});

好的，打完收工，完成之后發現，其實也就是那么回事。

總結

以上是生活随笔為你收集整理的记录自己的支付集成（微信支付宝）的全部內容，希望文章能夠幫你解決所遇到的問題。

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