Android App接入支付功能——支付宝支付

接入前准备

接入APP支付能力前，开发者需要完成以下前置步骤。

本文档展示了如何从零开始，使用支付宝开放平台服务端 SDK 快速接入App支付产品，完成与支付宝对接的部分。

接入准备——支付宝开发能力

一.下载官方sdk，将sdk放入自己工程libs文件中：

并且在我们的app/build.gradle里配置一下

    // 支付宝 SDK AAR 包所需的配置
    compile (name: 'alipaysdk-15.8.03.210428205839', ext: 'aar')
    //这里alipaysdk-15.8.03.210428205839必须和导入的sdk名字一样

二.配置清单文件AndroidManifest.xml：
①添加Activity声明：

②添加权限声明：

如果想混淆代码，在工程proguard-rules.pro添加如下代码：

-keep class com.alipay.android.app.IAlixPay{*;}
-keep class com.alipay.android.app.IAlixPay$Stub{*;}
-keep class com.alipay.android.app.IRemoteServiceCallback{*;}
-keep class com.alipay.android.app.IRemoteServiceCallback$Stub{*;}
-keep class com.alipay.sdk.app.PayTask{ public *;}
-keep class com.alipay.sdk.app.AuthTask{ public *;}
-keep class com.alipay.sdk.app.H5PayCallback {
;
;
}
-keep class com.alipay.android.phone.mrpc.core.** { *; }
-keep class com.alipay.apmobilesecuritysdk.** { *; }
-keep class com.alipay.mobile.framework.service.annotation.** { *; }
-keep class com.alipay.mobilesecuritysdk.face.** { *; }
-keep class com.alipay.tscenter.biz.rpc.** { *; }
-keep class org.json.alipay.** { *; }
-keep class com.alipay.tscenter.** { *; }
-keep class com.ta.utdid2.** { *;}
-keep class com.ut.device.** { *;}

三.支付接口调用 PayDemoActivity.java

public class PayDemoActivity extends AppCompatActivity {



	public static int price=100;
	
	
	public static final String APPID = "************";
	
	
	public static final String PID = "************";

	
	public static final String TARGET_ID = "************";

	
	public static final String RSA2_PRIVATE = "************";//密钥
	public static final String RSA_PRIVATE = "";
	
	private static final int SDK_PAY_FLAG = 1;
	private static final int SDK_AUTH_FLAG = 2;

	@SuppressLint("HandlerLeak")
	private Handler mHandler = new Handler() {
		@SuppressWarnings("unused")
		public void handleMessage(Message msg) {
			switch (msg.what) {
			case SDK_PAY_FLAG: {
				@SuppressWarnings("unchecked")
				PayResult payResult = new PayResult((Map) msg.obj);
				
				String resultInfo = payResult.getResult();// 同步返回需要验证的信息
				String resultStatus = payResult.getResultStatus();
				// 判断resultStatus 为9000则代表支付成功
				if (TextUtils.equals(resultStatus, "9000")) {
					// 该笔订单是否真实支付成功，需要依赖服务端的异步通知。
					showalert(PayDemoActivity.this, getString(R.string.pay_success) + payResult);
				} else {
					// 该笔订单真实的支付结果，需要依赖服务端的异步通知。
					showalert(PayDemoActivity.this, getString(R.string.pay_failed) + payResult);
				}
				break;
			}
			}
		};
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
//		EnvUtils.setEnv(EnvUtils.EnvEnum.SANDBOX);//沙箱环境需要的代码
		super.onCreate(savedInstanceState);
		setContentView(R.layout.pay_main);
		Button button = findViewById(R.id.payV2);
		button.setonClickListener(new View.onClickListener() {
			@Override
			public void onClick(View v) {
				payV2(v);
			}
		});
	}
	
	public void payV2(View v) {
		if (TextUtils.isEmpty(APPID) || (TextUtils.isEmpty(RSA2_PRIVATE) && TextUtils.isEmpty(RSA_PRIVATE))) {
			showalert(this, getString(R.string.error_missing_appid_rsa_private));
			return;
		}
	
		
        boolean rsa2 = (RSA2_PRIVATE.length() > 0);
		Map params = OrderInfoUtil2_0.buildOrderParamMap(APPID, rsa2,price);


		String orderParam = OrderInfoUtil2_0.buildOrderParam(params);

		String privateKey = rsa2 ? RSA2_PRIVATE : RSA_PRIVATE;

		String sign = OrderInfoUtil2_0.getSign(params, privateKey, rsa2);
		final String orderInfo = orderParam + "&" + sign;
		
		final Runnable payRunnable = new Runnable() {

			@Override
			public void run() {
				PayTask alipay = new PayTask(PayDemoActivity.this);
				Map result = alipay.payV2(orderInfo, true);
				Log.i("msp", result.toString());
				
				Message msg = new Message();
				msg.what = SDK_PAY_FLAG;
				msg.obj = result;
				mHandler.sendMessage(msg);
			}
		};

		// 必须异步调用
		Thread payThread = new Thread(payRunnable);
		payThread.start();
	}




	private static void showalert(Context ctx, String info) {
		showalert(ctx, info, null);
	}

	private static void showalert(Context ctx, String info, DialogInterface.onDismissListener onDismiss) {
		new alertDialog.Builder(ctx)
				.setMessage(info)
				.setPositiveButton(R.string./confirm/i, null)
				.setonDismissListener(onDismiss)
				.show();
	}

	private static void showToast(Context ctx, String msg) {
		Toast.makeText(ctx, msg, Toast.LENGTH_LONG).show();
	}

	private static String bundleToString(Bundle bundle) {
		if (bundle == null) {
			return "null";
		}
		final StringBuilder sb = new StringBuilder();
		for (String key: bundle.keySet()) {
			sb.append(key).append("=>").append(bundle.get(key)).append("n");
		}
		return sb.toString();
	}
}

OrderInfoUtil2_0.java

public class OrderInfoUtil2_0 {

	
	public static Map buildAuthInfoMap(String pid, String app_id, String target_id, boolean rsa2) {
		Map keyValues = new HashMap();

		// 商户签约拿到的app_id，如：2013081700024223
		keyValues.put("app_id", app_id);

		// 商户签约拿到的pid，如：2088102123816631
		keyValues.put("pid", pid);

		// 服务接口名称， 固定值
		keyValues.put("apiname", "com.alipay.account.auth");

		// 服务接口名称， 固定值
		keyValues.put("methodname", "alipay.open.auth.sdk.code.get");

		// 商户类型标识， 固定值
		keyValues.put("app_name", "mc");

		// 业务类型， 固定值
		keyValues.put("biz_type", "openservice");

		// 产品码， 固定值
		keyValues.put("product_id", "APP_FAST_LOGIN");

		// 授权范围， 固定值
		keyValues.put("scope", "kuaijie");

		// 商户唯一标识，如：kkkkk091125
		keyValues.put("target_id", target_id);

		// 授权类型， 固定值
		keyValues.put("auth_type", "AUTHACCOUNT");

		// 签名类型
		keyValues.put("sign_type", rsa2 ? "RSA2" : "RSA");

		return keyValues;
	}

	
	public static Map buildOrderParamMap(String app_id, boolean rsa2,int price) {
		Map keyValues = new HashMap();

		keyValues.put("app_id", app_id);

		keyValues.put("biz_content", "{"timeout_express":"30m","product_code":"QUICK_MSECURITY_PAY","total_amount":""+price+"","subject":"1","body":"我是测试数据","out_trade_no":"" + getOutTradeNo() +  ""}");

		keyValues.put("charset", "utf-8");

		keyValues.put("method", "alipay.trade.app.pay");

		keyValues.put("sign_type", rsa2 ? "RSA2" : "RSA");

		keyValues.put("timestamp", "2016-07-29 16:55:53");

		keyValues.put("version", "1.0");

		return keyValues;
	}

	
	public static String buildOrderParam(Map map) {
		List keys = new ArrayList(map.keySet());

		StringBuilder sb = 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("&");
		}

		String tailKey = keys.get(keys.size() - 1);
		String tailValue = map.get(tailKey);
		sb.append(buildKeyValue(tailKey, tailValue, true));

		return sb.toString();
	}

	
	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();
	}

	
	public static String getSign(Map map, String rsaKey, boolean rsa2) {
		List keys = new ArrayList(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(), rsaKey, rsa2);
		String encodedSign = "";

		try {
			encodedSign = URLEncoder.encode(oriSign, "UTF-8");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		return "sign=" + encodedSign;
	}

	
	private static 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);
		return key;
	}

}

工具类 1.SignUtils.java

public class SignUtils {

	private static final String ALGORITHM = "RSA";

	private static final String SIGN_ALGORITHMS = "SHA1WithRSA";

	private static final String SIGN_SHA256RSA_ALGORITHMS = "SHA256WithRSA";

	private static final String DEFAULT_CHARSET = "UTF-8";

	private static String getAlgorithms(boolean rsa2) {
		return rsa2 ? SIGN_SHA256RSA_ALGORITHMS : SIGN_ALGORITHMS;
	}
	
	public static String sign(String content, String privateKey, boolean rsa2) {
		try {
			PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(
					base64.decode(privateKey));
			KeyFactory keyf = KeyFactory.getInstance(ALGORITHM);
			PrivateKey priKey = keyf.generatePrivate(priPKCS8);

			java.security.Signature signature = java.security.Signature
					.getInstance(getAlgorithms(rsa2));

			signature.initSign(priKey);
			signature.update(content.getBytes(DEFAULT_CHARSET));

			byte[] signed = signature.sign();

			return base64.encode(signed);
		} catch (Exception e) {
			e.printStackTrace();
		}

		return null;
	}

}

2.PayResult.java

public class PayResult {
	private String resultStatus;
	private String result;
	private String memo;

	public PayResult(Map rawResult) {
		if (rawResult == null) {
			return;
		}

		for (String key : rawResult.keySet()) {
			if (TextUtils.equals(key, "resultStatus")) {
				resultStatus = rawResult.get(key);
			} else if (TextUtils.equals(key, "result")) {
				result = rawResult.get(key);
			} else if (TextUtils.equals(key, "memo")) {
				memo = rawResult.get(key);
			}
		}
	}

	@Override
	public String toString() {
		return "resultStatus={" + resultStatus + "};memo={" + memo
				+ "};result={" + result + "}";
	}

	
	public String getResultStatus() {
		return resultStatus;
	}

	
	public String getMemo() {
		return memo;
	}

	
	public String getResult() {
		return result;
	}
}

3.ExternalFragment.java

public class ExternalFragment extends Fragment {

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		return inflater.inflate(R.layout.pay_external, container, false);
	}
}

4.在 Android_Demo中移过来这三个

五.布局文件 pay_external.xml

pay_main.xml

本方法调用的返回结果，参数说明见"客户端同步返回参数说明"。至此，支付宝支付代码已完成！

Android App接入支付功能——支付宝支付

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