Android支付接入（一）：支付宝
时间：2014-07-17 13:06:58
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原地址：http://blog.csdn.net/simdanfeg/article/details/9011603
转载之前我想深深地感谢屌丝哥
相信相同过App获取利润的都会需要接入计费SDK，下边就跟大家走一遍完整的支付宝SDK接入，支付系列均通过计费Button触发，计费所有代码均放到一个java文件实现，这样虽然会有点违背java面向对象及封装性，但这样做的一个好处是可以快速集成到不同的游戏中，将改动的文件降到最低，各有利弊吧，如果大家有什么更好的方法，望一起交流，好了，废话不多说了，开始干活。
PS：初次写博文，各方面还不够完善，看到此博文的朋友有什么意见或者建议请回复或者留言，你们的支持是我最大的动力。
注意事项
1.添加android.permission.INTERNET权限和android.permission.ACCESS_NETWORK_STATE权限
2.代码中出现注释的地方重点看，没注释的地方可以不看
3.想获取支付宝合作商户ID，及支付宝公钥请点击支付宝链接，生成密钥及PKCS8转码工具在文档中
代码
MainActivity：
package com.example.blogforzfb; import android.os.Bundle; import android.view.View; import android.app.Activity; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); findViewById(R.id.button1).setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub // 拿到Fiap对象并传入容器 Fiap fiap = new Fiap(MainActivity.this); // 调用支付方法，并传入支付金额 fiap.android_pay(0.01); } }); } }
Fiap.java（支付逻辑所在文件）
package com.example.blogforzfb; // 支付宝应用支付 // 2012-09-20 14:41:47 // (c) 2012 Catcap import java.io.BufferedReader; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.InetSocketAddress; import java.net.Proxy; import java.net.URL; import java.net.URLEncoder; import java.security.KeyFactory; import java.security.PrivateKey; import java.security.PublicKey; import java.security.spec.PKCS8EncodedKeySpec; import java.security.spec.X509EncodedKeySpec; import java.util.ArrayList; import java.util.List; import javax.net.ssl.HostnameVerifier; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLSession; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import com.alipay.android.app.IAlixPay; import com.alipay.android.app.IRemoteServiceCallback; import android.annotation.SuppressLint; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.ComponentName; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.ServiceConnection; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.os.RemoteException; import android.util.Log; import android.view.KeyEvent; import android.widget.Toast; @SuppressLint ("HandlerLeak") public class Fiap{ Activity mActivity = null; // =================================== // JAVA 的接口 // =================================== public Fiap(Activity activity){ mActivity = activity; } //这里传过来的是想支付多少钱(最好定义成double的，方便调试，毕竟每次测试都支付几元大洋不是每个人都负担的起的) public void android_pay (double coin){ //支付宝支付必须依赖网络，所以在这里必须加网络判定 if (!is_can_internet (mActivity)){ fiapHandler.sendEmptyMessage(1); return; } Message msg = new Message (); Bundle bundle = new Bundle(); bundle.putDouble("coin", coin); msg.setData(bundle); msg.what = 1; fss.sendMessage (msg); } private Handler fiapHandler = new Handler(){ public void handleMessage(Message msg) { if (msg.what == 1) { new AlertDialog.Builder (mActivity).setTitle ("提示").setMessage ("连接不到网络。").setPositiveButton ("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Intent intent = new Intent( "android.settings.WIFI_SETTINGS"); mActivity.startActivity(intent); } }).create ().show (); } }; }; // =================================== // 支付宝 // =================================== public class PartnerConfig { //以下配置涉及到公司内容，所以略去，需自己配置 // 合作商户ID。用签约支付宝账号登录ms.alipay.com后，在账户信息页面获取。 public static final String PARTNER = ""; // 商户收款的支付宝账号 public static final String SELLER = ""; // 商户（RSA）私钥(注意一定要转PKCS8格式，否则在Android4.0及以上系统会支付失败) public static final String RSA_PRIVATE = ""; // 支付宝（RSA）公钥用签约支付宝账号登录ms.alipay.com后，在密钥管理页面获取。 public static final String RSA_ALIPAY_PUBLIC = ""; } private ProgressDialog mProgress = null; public static class AlixOnCancelListener implements DialogInterface.OnCancelListener { Activity mcontext; AlixOnCancelListener (Activity context){ mcontext = context; } public void onCancel (DialogInterface dialog){ mcontext.onKeyDown (KeyEvent.KEYCODE_BACK, null); } } private Handler fss = new Handler (){ @SuppressWarnings ("deprecation") public void handleMessage (Message msg){ MobileSecurePayHelper mspHelper = new MobileSecurePayHelper (mActivity); boolean isMobile_spExist = mspHelper.detectMobile_sp (); if (!isMobile_spExist) return; // 根据订单信息开始进行支付 try{ // 准备订单信息 Bundle bundle = msg.getData(); double _coin = bundle.getDouble("coin"); String orderInfo = getOrderInfo(_coin); // 这里根据签名方式对订单信息进行签名 String signType = getSignType (); String strsign = sign (signType, orderInfo); // 对签名进行编码 strsign = URLEncoder.encode (strsign); // 组装好参数 String info = orderInfo + "&sign=" + """ + strsign + """ + "&" + getSignType (); // 调用pay方法进行支付 MobileSecurePayer msp = new MobileSecurePayer (); boolean bRet = msp.pay (info, mHandler, AlixId.RQF_PAY, mActivity); if (bRet){ // 显示“正在支付”进度条 closeProgress (); mProgress = BaseHelper.showProgress (mActivity, null, "正在支付", false, true); } } catch (Exception ex){ ex.printStackTrace (); } } }; private Handler mHandler = new Handler (){ public void handleMessage (Message msg){ try{ String strRet = (String) msg.obj; switch (msg.what){ case AlixId.RQF_PAY:{ // closeProgress (); // 处理交易结果 try{ // 获取交易状态码，具体状态代码请参看文档 String tradeStatus = "resultStatus={"; int imemoStart = strRet.indexOf ("resultStatus="); imemoStart += tradeStatus.length (); int imemoEnd = strRet.indexOf ("};memo="); tradeStatus = strRet.substring (imemoStart, imemoEnd); //先验签通知 ResultChecker resultChecker = new ResultChecker (strRet); int retVal = resultChecker.checkSign (); if (retVal == ResultChecker.RESULT_CHECK_SIGN_FAILED){ BaseHelper.showDialog (mActivity, "提示", "您的订单信息已被非法篡改。", android.R.drawable.ic_dialog_alert); } else{ if (tradeStatus.equals ("9000")){ //程序到这里表示支付已经成功了，想干什么就在这里干吧 -v- Toast.makeText(mActivity, "支付成功",Toast.LENGTH_LONG).show(); Log.i("result of this pay:", "successful"); } else if (!tradeStatus.equals ("4000")){ //程序到这里表示此次支付失败，查看具体原因可以从这里打印个log Toast.makeText(mActivity, "支付失败,交易状态码为:" + tradeStatus, Toast.LENGTH_LONG).show(); Log.e("result of this pay", "falied"); } } } catch (Exception e){ e.printStackTrace (); } } break; } super.handleMessage (msg); } catch (Exception e){ e.printStackTrace (); } } }; String getSignType (){ String getSignType = "sign_type=" + """ + "RSA" + """; return getSignType; } void closeProgress (){ try{ if (mProgress != null){ mProgress.dismiss (); mProgress = null; } } catch (Exception e){ e.printStackTrace (); } } String getOrderInfo (double position){ String strOrderInfo = "partner=" + """ + PartnerConfig.PARTNER + """; strOrderInfo += "&"; strOrderInfo += "seller=" + """ + PartnerConfig.SELLER + """; strOrderInfo += "&"; strOrderInfo += "out_trade_no=" + """ + get_order_id () + """; strOrderInfo += "&"; //这里是显示到支付宝支付界面上的付费信息提示（这里一定要严格按照此格式填写） strOrderInfo += "subject=" + ""猫币""; strOrderInfo += "&"; strOrderInfo += "body=" + ""购买猫币""; strOrderInfo += "&"; strOrderInfo += "total_fee=" + """ + position + """; strOrderInfo += "&"; strOrderInfo += "notify_url=" + """ + "http://notify.java.jpxx.org/index.jsp" + """; return strOrderInfo; } String sign (String signType, String content){ return Rsa.sign (content, PartnerConfig.RSA_PRIVATE); } public boolean is_can_internet (final Context context){ try{ ConnectivityManager manger = (ConnectivityManager) context.getSystemService (Context.CONNECTIVITY_SERVICE); NetworkInfo info = manger.getActiveNetworkInfo (); return (info != null && info.isConnected ()); } catch (Exception e){ return false; } } public String get_order_id (){ long ran1 = get_round (1111, 9999); long ran2 = get_round (1111, 9999); //注掉的这里是返回的渠道号（我们用的友盟）+随机数和当前系统时间组合 //return android_get_umeng_channel () + "_" + ran1 + System.currentTimeMillis () + ran2; return "_"+ran1 + System.currentTimeMillis () + ran2; } public long get_round (int min, int max){ return Math.round (Math.random () * (max - min) + min); } ================================================================================================= // // 支付宝不用动的 // ================================================================================================== public final class AlixId { public static final int BASE_ID = 0; public static final int RQF_PAY = BASE_ID + 1; public static final int RQF_INSTALL_CHECK = RQF_PAY + 1; } final class AlixDefine { public static final String IMEI = "imei"; public static final String IMSI = "imsi"; public static final String KEY = "key"; public static final String USER_AGENT = "user_agent"; public static final String VERSION = "version"; public static final String DEVICE = "device"; public static final String SID = "sid"; public static final String partner = "partner"; public static final String charset = "charset"; public static final String sign_type = "sign_type"; public static final String sign = "sign"; public static final String URL = "URL"; public static final String split = "&"; public static final String AlixPay = "AlixPay"; public static final String action = "action"; public static final String actionUpdate = "update"; public static final String data = "data"; public static final String platform = "platform"; } public static final class Base64 { static private final int BASELENGTH = 128; static private final int LOOKUPLENGTH = 64; static private final int TWENTYFOURBITGROUP = 24; static private final int EIGHTBIT = 8; static private final int SIXTEENBIT = 16; static private final int FOURBYTE = 4; static private final int SIGN = -128; static private final char PAD = ‘=‘; static private final boolean fDebug = false; static final private byte[] base64Alphabet = new byte[BASELENGTH]; static final private char[] lookUpBase64Alphabet = new char[LOOKUPLENGTH]; static{ for (int i = 0; i < BASELENGTH; ++i){ base64Alphabet[i] = -1; } for (int i = ‘Z‘; i >= ‘A‘; i--){ base64Alphabet[i] = (byte) (i - ‘A‘); } for (int i = ‘z‘; i >= ‘a‘; i--){ base64Alphabet[i] = (byte) (i - ‘a‘ + 26); } for (int i = ‘9‘; i >= ‘0‘; i--){ base64Alphabet[i] = (byte) (i - ‘0‘ + 52); } base64Alphabet[‘+‘] = 62; base64Alphabet[‘/‘] = 63; for (int i = 0; i <= 25; i++){ lookUpBase64Alphabet[i] = (char) (‘A‘ + i); } for (int i = 26, j = 0; i <= 51; i++, j++){ lookUpBase64Alphabet[i] = (char) (‘a‘ + j); } for (int i = 52, j = 0; i <= 61; i++, j++){ lookUpBase64Alphabet[i] = (char) (‘0‘ + j); } lookUpBase64Alphabet[62] = (char) ‘+‘; lookUpBase64Alphabet[63] = (char) ‘/‘; } private static boolean isWhiteSpace (char octect){ return (octect == 0x20 || octect == 0xd || octect == 0xa || octect == 0x9); } private static boolean isPad (char octect){ return (octect == PAD); } private static boolean isData (char octect){ return (octect < BASELENGTH && base64Alphabet[octect] != -1); } public static String encode (byte[] binaryData){ if (binaryData == null){ return null; } int lengthDataBits = binaryData.length * EIGHTBIT; if (lengthDataBits == 0){ return ""; } int fewerThan24bits = lengthDataBits % TWENTYFOURBITGROUP; int numberTriplets = lengthDataBits / TWENTYFOURBITGROUP; int numberQuartet = fewerThan24bits != 0? numberTriplets + 1 : numberTriplets; char encodedData[] = null; encodedData = new char[numberQuartet * 4]; byte k = 0, l = 0, b1 = 0, b2 = 0, b3 = 0; int encodedIndex = 0; int dataIndex = 0; if (fDebug){ System.out.println ("number of triplets = " + numberTriplets); } for (int i = 0; i < numberTriplets; i++){ b1 = binaryData[dataIndex++]; b2 = binaryData[dataIndex++]; b3 = binaryData[dataIndex++]; if (fDebug){ System.out.println ("b1= " + b1 + ", b2= " + b2 + ", b3= " + b3); } l = (byte) (b2 & 0x0f); k = (byte) (b1 & 0x03); byte val1 = ((b1 & SIGN) == 0)? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0); byte val2 = ((b2 & SIGN) == 0)? (byte) (b2 >> 4) : (byte) ((b2) >> 4 ^ 0xf0); byte val3 = ((b3 & SIGN) == 0)? (byte) (b3 >> 6) : (byte) ((b3) >> 6 ^ 0xfc); if (fDebug){ System.out.println ("val2 = " + val2); System.out.println ("k4 = " + (k << 4)); System.out.println ("vak = " + (val2 | (k << 4))); } encodedData[encodedIndex++] = lookUpBase64Alphabet[val1]; encodedData[encodedIndex++] = lookUpBase64Alphabet[val2 | (k << 4)]; encodedData[encodedIndex++] = lookUpBase64Alphabet[(l << 2) | val3]; encodedData[encodedIndex++] = lookUpBase64Alphabet[b3 & 0x3f]; } // form integral number of 6-bit groups if (fewerThan24bits == EIGHTBIT){ b1 = binaryData[dataIndex]; k = (byte) (b1 & 0x03); if (fDebug){ System.out.println ("b1=" + b1); System.out.println ("b1<<2 = " + (b1 >> 2)); } byte val1 = ((b1 & SIGN) == 0)? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0); encodedData[encodedIndex++] = lookUpBase64Alphabet[val1]; encodedData[encodedIndex++] = lookUpBase64Alphabet[k << 4]; encodedData[encodedIndex++] = PAD; encodedData[encodedIndex++] = PAD; } else if (fewerThan24bits == SIXTEENBIT){ b1 = binaryData[dataIndex]; b2 = binaryData[dataIndex + 1]; l = (byte) (b2 & 0x0f); k = (byte) (b1 & 0x03); byte val1 = ((b1 & SIGN) == 0)? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0); byte val2 = ((b2 & SIGN) == 0)? (byte) (b2 >> 4) : (byte) ((b2) >> 4 ^ 0xf0); encodedData[encodedIndex++] = lookUpBase64Alphabet[val1]; encodedData[encodedIndex++] = lookUpBase64Alphabet[val2 | (k << 4)]; encodedData[encodedIndex++] = lookUpBase64Alphabet[l << 2]; encodedData[encodedIndex++] = PAD; } return new String (encodedData); } public static byte[] decode (String encoded){ if (encoded == null){ return null; } char[] base64Data = encoded.toCharArray (); // remove white spaces int len = removeWhiteSpace (base64Data); if (len % FOURBYTE != 0){ return null;// should be divisible by four } int numberQuadruple = (len / FOURBYTE); if (numberQuadruple == 0){ return new byte[0]; } byte decodedData[] = null; byte b1 = 0, b2 = 0, b3 = 0, b4 = 0; char d1 = 0, d2 = 0, d3 = 0, d4 = 0; int i = 0; int encodedIndex = 0; int dataIndex = 0; decodedData = new byte[(numberQuadruple) * 3]; for (; i < numberQuadruple - 1; i++){ if (!isData ((d1 = base64Data[dataIndex++])) || !isData ((d2 = base64Data[dataIndex++])) || !isData ((d3 = base64Data[dataIndex++])) || !isData ((d4 = base64Data[dataIndex++]))){ return null; }// if found "no data" just return null b1 = base64Alphabet[d1]; b2 = base64Alphabet[d2]; b3 = base64Alphabet[d3]; b4 = base64Alphabet[d4]; decodedData[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4); decodedData[encodedIndex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)); decodedData[encodedIndex++] = (byte) (b3 << 6 | b4); } if (!isData ((d1 = base64Data[dataIndex++])) || !isData ((d2 = base64Data[dataIndex++]))){ return null;// if found "no data" just return null } b1 = base64Alphabet[d1]; b2 = base64Alphabet[d2]; d3 = base64Data[dataIndex++]; d4 = base64Data[dataIndex++]; if (!isData ((d3)) || !isData ((d4))){// Check if they are PAD characters if (isPad (d3) && isPad (d4)){ if ((b2 & 0xf) != 0)// last 4 bits should be zero { return null; } byte[] tmp = new byte[i * 3 + 1]; System.arraycopy (decodedData, 0, tmp, 0, i * 3); tmp[encodedIndex] = (byte) (b1 << 2 | b2 >> 4); return tmp; } else if (!isPad (d3) && isPad (d4)){ b3 = base64Alphabet[d3]; if ((b3 & 0x3) != 0)// last 2 bits should be zero { return null; } byte[] tmp = new byte[i * 3 + 2]; System.arraycopy (decodedData, 0, tmp, 0, i * 3); tmp[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4); tmp[encodedIndex] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)); return tmp; } else{ return null; } } else{ // No PAD e.g 3cQl b3 = base64Alphabet[d3]; b4 = base64Alphabet[d4]; decodedData[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4); decodedData[encodedIndex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)); decodedData[encodedIndex++] = (byte) (b3 << 6 | b4); } return decodedData; } private static int removeWhiteSpace (char[] data){ if (data == null){ return 0; } // count characters that‘s not whitespace int newSize = 0; int len = data.length; for (int i = 0; i < len; i++){ if (!isWhiteSpace (data[i])){ data[newSize++] = data[i]; } } return newSize; } } public static class BaseHelper { public static String convertStreamToString (InputStream is){ BufferedReader reader = new BufferedReader (new InputStreamReader (is)); StringBuilder sb = new StringBuilder (); String line = null; try{ while ((line = reader.readLine ()) != null){ sb.append (line); } } catch (IOException e){ e.printStackTrace (); } finally{ try{ is.close (); } catch (IOException e){ e.printStackTrace (); } } return sb.toString (); } public static void showDialog (Activity context, String strTitle, String strText, int icon){ AlertDialog.Builder tDialog = new AlertDialog.Builder (context); tDialog.setIcon (icon); tDialog.setTitle (strTitle); tDialog.setMessage (strText); tDialog.setPositiveButton ("确定", null); tDialog.show (); } public static void log (String tag, String info){ // Log.d(tag, info); } public static void chmod (String permission, String path){ try{ String command = "chmod " + permission + " " + path; Runtime runtime = Runtime.getRuntime (); runtime.exec (command); } catch (IOException e){ e.printStackTrace (); } } // // show the progress bar. public static ProgressDialog showProgress (Context context, CharSequence title, CharSequence message, boolean indeterminate, boolean cancelable){ ProgressDialog dialog = new ProgressDialog (context); dialog.setTitle (title); dialog.setMessage (message); dialog.setIndeterminate (indeterminate); dialog.setCancelable (false); // dialog.setDefaultButton(false); dialog.setOnCancelListener (new Fiap.AlixOnCancelListener ((Activity) context)); dialog.show (); return dialog; } public static JSONObject string2JSON (String str, String split){ JSONObject json = new JSONObject (); try{ String[] arrStr = str.split (split); for (int i = 0; i < arrStr.length; i++){ String[] arrKeyValue = arrStr[i].split ("="); json.put (arrKeyValue[0], arrStr[i].substring (arrKeyValue[0].length () + 1)); } } catch (Exception e){ e.printStackTrace (); } return json; } } public class Constant { public final static String server_url = "https://msp.alipay.com/x.htm"; } public class MobileSecurePayer { Integer lock = 0; IAlixPay mAlixPay = null; boolean mbPaying = false; Activity mActivity = null; // 和安全支付服务建立连接 private ServiceConnection mAlixPayConnection = new ServiceConnection (){ public void onServiceConnected (ComponentName className, IBinder service){ // // wake up the binder to continue. // 获得通信通道 synchronized (lock){ mAlixPay = IAlixPay.Stub.asInterface (service); lock.notify (); } } public void onServiceDisconnected (ComponentName className){ mAlixPay = null; } }; public boolean pay (final String strOrderInfo, final Handler callback, final int myWhat, final Activity activity){ if (mbPaying) return false; mbPaying = true; // mActivity = activity; // bind the service. // 绑定服务 if (mAlixPay == null){ // 绑定安全支付服务需要获取上下文环境， // 如果绑定不成功使用mActivity.getApplicationContext().bindService // 解绑时同理 mActivity.getApplicationContext ().bindService (new Intent (IAlixPay.class.getName ()), mAlixPayConnection, Context.BIND_AUTO_CREATE); } // else ok. // 实例一个线程来进行支付 new Thread (new Runnable (){ public void run (){ try{ // wait for the service bind operation to completely // finished. // Note: this is important,otherwise the next mAlixPay.Pay() // will fail. // 等待安全支付服务绑定操作结束 // 注意：这里很重要，否则mAlixPay.Pay()方法会失败 synchronized (lock){ if (mAlixPay == null) lock.wait (); } // register a Callback for the service. // 为安全支付服务注册一个回调 mAlixPay.registerCallback (mCallback); // call the MobileSecurePay service. // 调用安全支付服务的pay方法 String strRet = mAlixPay.Pay (strOrderInfo); // set the flag to indicate that we have finished. // unregister the Callback, and unbind the service. // 将mbPaying置为false，表示支付结束 // 移除回调的注册，解绑安全支付服务 mbPaying = false; mAlixPay.unregisterCallback (mCallback); mActivity.getApplicationContext ().unbindService (mAlixPayConnection); // send the result back to caller. // 发送交易结果 Message msg = new Message (); msg.what = myWhat; msg.obj = strRet; callback.sendMessage (msg); } catch (Exception e){ e.printStackTrace (); // send the result back to caller. // 发送交易结果 Message msg = new Message (); msg.what = myWhat; msg.obj = e.toString (); callback.sendMessage (msg); } } }).start (); return true; } private IRemoteServiceCallback mCallback = new IRemoteServiceCallback.Stub (){ public void startActivity (String packageName, String className, int iCallingPid, Bundle bundle) throws RemoteException{ Intent intent = new Intent (Intent.ACTION_MAIN, null); if (bundle == null) bundle = new Bundle (); // else ok. try{ bundle.putInt ("CallingPid", iCallingPid); intent.putExtras (bundle); } catch (Exception e){ e.printStackTrace (); } intent.setClassName (packageName, className); mActivity.startActivity (intent); } @Override public boolean isHideLoadingScreen () throws RemoteException{ return false; } @Override public void payEnd (boolean arg0, String arg1) throws RemoteException{ } }; } public class MobileSecurePayHelper { static final String TAG = "MobileSecurePayHelper"; private ProgressDialog mProgress = null; Context mContext = null; public MobileSecurePayHelper (Context context){ this.mContext = context; } public boolean detectMobile_sp (){ boolean isMobile_spExist = isMobile_spExist (); if (!isMobile_spExist){ // 获取系统缓冲绝对路径获取/data/data//cache目录 File cacheDir = mContext.getCacheDir (); final String cachePath = cacheDir.getAbsolutePath () + "/temp.apk"; mProgress = BaseHelper.showProgress (mContext, null, "正在检测安全支付服务版本", false, true); // 实例新线程检测是否有新版本进行下载 new Thread (new Runnable (){ public void run (){ // 检测是否有新的版本。 String newApkdlUrl = checkNewUpdate (); closeProgress (); // 动态下载 if (newApkdlUrl != null) retrieveApkFromNet (mContext, newApkdlUrl, cachePath); showInstallConfirmDialog (mContext, cachePath); } }).start (); } return isMobile_spExist; } public void showInstallConfirmDialog (final Context context, final String cachePath){ Looper.prepare (); AlertDialog.Builder tDialog = new AlertDialog.Builder (context); tDialog.setTitle ("安装提示"); tDialog.setMessage ("为保证您的交易安全，需要您安装支付宝安全支付服务，才能进行付款。\n\n点击确定，立即安装。"); tDialog.setPositiveButton ("确定", new DialogInterface.OnClickListener (){ public void onClick (DialogInterface dialog, int which){ // // 修改apk权限 BaseHelper.chmod ("777", cachePath); // // install the apk. // 安装安全支付服务APK Intent intent = new Intent (Intent.ACTION_VIEW); intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK); intent.setDataAndType (Uri.parse ("file://" + cachePath), "application/vnd.android.package-archive"); context.startActivity (intent); } }); tDialog.setNegativeButton ("取消", new DialogInterface.OnClickListener (){ public void onClick (DialogInterface dialog, int which){} }); tDialog.show (); Looper.loop (); } public boolean isMobile_spExist (){ PackageManager manager = mContext.getPackageManager (); List<PackageInfo> pkgList = manager.getInstalledPackages (0); for (int i = 0; i < pkgList.size (); i++){ PackageInfo pI = pkgList.get (i); if (pI.packageName.equalsIgnoreCase ("com.alipay.android.app")) return true; } return false; } public boolean retrieveApkFromAssets (Context context, String fileName, String path){ boolean bRet = false; try{ InputStream is = context.getAssets ().open (fileName); File file = new File (path); file.createNewFile (); FileOutputStream fos = new FileOutputStream (file); byte[] temp = new byte[1024]; int i = 0; while ((i = is.read (temp)) > 0){ fos.write (temp, 0, i); } fos.close (); is.close (); bRet = true; } catch (IOException e){ e.printStackTrace (); } return bRet; } public PackageInfo getApkInfo (Context context, String archiveFilePath){ PackageManager pm = context.getPackageManager (); PackageInfo apkInfo = pm.getPackageArchiveInfo (archiveFilePath, PackageManager.GET_META_DATA); return apkInfo; } public String checkNewUpdate (){ String url = null; try{ // JSONObject resp = sendCheckNewUpdate (packageInfo.versionName); JSONObject resp = sendCheckNewUpdate("1.0.0"); if (resp.getString ("needUpdate").equalsIgnoreCase ("true")){ url = resp.getString ("updateUrl"); } // else ok. } catch (Exception e){ e.printStackTrace (); } return url; } public JSONObject sendCheckNewUpdate (String versionName){ JSONObject objResp = null; try{ JSONObject req = new JSONObject (); req.put (AlixDefine.action, AlixDefine.actionUpdate); JSONObject data = new JSONObject (); data.put (AlixDefine.platform, "android"); data.put (AlixDefine.VERSION, versionName); data.put (AlixDefine.partner, ""); req.put (AlixDefine.data, data); objResp = sendRequest (req.toString ()); } catch (JSONException e){ e.printStackTrace (); } return objResp; } public JSONObject sendRequest (final String content){ NetworkManager nM = new NetworkManager (this.mContext); // JSONObject jsonResponse = null; try{ String response = null; synchronized (nM){ // response = nM.SendAndWaitResponse (content, Constant.server_url); } jsonResponse = new JSONObject (response); } catch (Exception e){ e.printStackTrace (); } // if (jsonResponse != null) BaseHelper.log (TAG, jsonResponse.toString ()); return jsonResponse; } public boolean retrieveApkFromNet (Context context, String strurl, String filename){ boolean bRet = false; try{ NetworkManager nM = new NetworkManager (this.mContext); bRet = nM.urlDownloadToFile (context, strurl, filename); } catch (Exception e){ e.printStackTrace (); } return bRet; } // // close the progress bar void closeProgress (){ try{ if (mProgress != null){ mProgress.dismiss (); mProgress = null; } } catch (Exception e){ e.printStackTrace (); } } } public class NetworkManager { static final String TAG = "NetworkManager"; private int connectTimeout = 30 * 1000; private int readTimeout = 30 * 1000; Proxy mProxy = null; Context mContext; public NetworkManager (Context context){ this.mContext = context; setDefaultHostnameVerifier (); } @SuppressWarnings ("deprecation") private void detectProxy (){ ConnectivityManager cm = (ConnectivityManager) mContext.getSystemService (Context.CONNECTIVITY_SERVICE); NetworkInfo ni = cm.getActiveNetworkInfo (); if (ni != null && ni.isAvailable () && ni.getType () == ConnectivityManager.TYPE_MOBILE){ String proxyHost = android.net.Proxy.getDefaultHost (); int port = android.net.Proxy.getDefaultPort (); if (proxyHost != null){ final InetSocketAddress sa = new InetSocketAddress (proxyHost, port); mProxy = new Proxy (Proxy.Type.HTTP, sa); } } } private void setDefaultHostnameVerifier (){ // HostnameVerifier hv = new HostnameVerifier (){ public boolean verify (String hostname, SSLSession session){ return true; } }; HttpsURLConnection.setDefaultHostnameVerifier (hv); } public String SendAndWaitResponse (String strReqData, String strUrl){ // detectProxy (); String strResponse = null; ArrayList<BasicNameValuePair> pairs = new ArrayList<BasicNameValuePair> (); pairs.add (new BasicNameValuePair ("requestData", strReqData)); HttpURLConnection httpConnect = null; UrlEncodedFormEntity p_entity; try{ p_entity = new UrlEncodedFormEntity (pairs, "utf-8"); URL url = new URL (strUrl); if (mProxy != null){ httpConnect = (HttpURLConnection) url.openConnection (mProxy); } else{ httpConnect = (HttpURLConnection) url.openConnection (); } httpConnect.setConnectTimeout (connectTimeout); httpConnect.setReadTimeout (readTimeout); httpConnect.setDoOutput (true); httpConnect.addRequestProperty ("Content-type", "application/x-www-form-urlencoded;charset=utf-8"); httpConnect.connect (); OutputStream os = httpConnect.getOutputStream (); p_entity.writeTo (os); os.flush (); InputStream content = httpConnect.getInputStream (); strResponse = BaseHelper.convertStreamToString (content); BaseHelper.log (TAG, "response " + strResponse); } catch (IOException e){ e.printStackTrace (); } finally{ httpConnect.disconnect (); } return strResponse; } public boolean urlDownloadToFile (Context context, String strurl, String path){ boolean bRet = false; // detectProxy (); try{ URL url = new URL (strurl); HttpURLConnection conn = null; if (mProxy != null){ conn = (HttpURLConnection) url.openConnection (mProxy); } else{ conn = (HttpURLConnection) url.openConnection (); } conn.setConnectTimeout (connectTimeout); conn.setReadTimeout (readTimeout); conn.setDoInput (true); conn.connect (); InputStream is = conn.getInputStream (); File file = new File (path); file.createNewFile (); FileOutputStream fos = new FileOutputStream (file); byte[] temp = new byte[1024]; int i = 0; while ((i = is.read (temp)) > 0){ fos.write (temp, 0, i); } fos.close (); is.close (); bRet = true; } catch (IOException e){ e.printStackTrace (); } return bRet; } } public class ResultChecker { public static final int RESULT_INVALID_PARAM = 0; public static final int RESULT_CHECK_SIGN_FAILED = 1; public static final int RESULT_CHECK_SIGN_SUCCEED = 2; String mContent; public ResultChecker (String content){ this.mContent = content; } int checkSign (){ int retVal = RESULT_CHECK_SIGN_SUCCEED; try{ JSONObject objContent = BaseHelper.string2JSON (this.mContent, ";"); String result = objContent.getString ("result"); result = result.substring (1, result.length () - 1); // 获取待签名数据 int iSignContentEnd = result.indexOf ("&sign_type="); String signContent = result.substring (0, iSignContentEnd); // 获取签名 JSONObject objResult = BaseHelper.string2JSON (result, "&"); String signType = objResult.getString ("sign_type"); signType = signType.replace (""", ""); String sign = objResult.getString ("sign"); sign = sign.replace (""", ""); // 进行验签 返回验签结果 if (signType.equalsIgnoreCase ("RSA")){ if (!Rsa.doCheck (signContent, sign, PartnerConfig.RSA_ALIPAY_PUBLIC)) retVal = RESULT_CHECK_SIGN_FAILED; } } catch (Exception e){ retVal = RESULT_INVALID_PARAM; e.printStackTrace (); } return retVal; } } public static class Rsa { public static final String SIGN_ALGORITHMS = "SHA1WithRSA"; public static String sign (String content, String privateKey){ String charset = "utf-8"; try{ PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec (Base64.decode (privateKey)); KeyFactory keyf = KeyFactory.getInstance ("RSA"); PrivateKey priKey = keyf.generatePrivate (priPKCS8); java.security.Signature signature = java.security.Signature.getInstance (SIGN_ALGORITHMS); signature.initSign (priKey); signature.update (content.getBytes (charset)); byte[] signed = signature.sign (); return Base64.encode (signed); } catch (Exception e){ e.printStackTrace (); } return null; } public static boolean doCheck (String content, String sign, String publicKey){ try{ KeyFactory keyFactory = KeyFactory.getInstance ("RSA"); byte[] encodedKey = Base64.decode (publicKey); PublicKey pubKey = keyFactory.generatePublic (new X509EncodedKeySpec (encodedKey)); java.security.Signature signature = java.security.Signature.getInstance (SIGN_ALGORITHMS); signature.initVerify (pubKey); signature.update (content.getBytes ("utf-8")); boolean bverify = signature.verify (Base64.decode (sign)); return bverify; } catch (Exception e){ e.printStackTrace (); } return false; } } }
以上即为支付宝SDK的接入流程
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