• Android支付接入(一):支付宝


    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
    3.参考下边代码及附带demo足以让你完成支付宝支付,若想了解支付宝更多相关问题请参考附带文档,demo及文档下载地址:http://pan.baidu.com/share/link?shareid=421254&uk=473193131
    4.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

    好了,开始贴代码
    MainActivity(程序入口文件)
    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。 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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  • 原文地址:https://www.cnblogs.com/riskyer/p/3304063.html
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