支付流程

1. 前端选择商品，调用paypal支付

2. 支付完成，paypal会返回payment信息，将payment的id返回给自己服务端

3. 服务端根据paymentId,调paypal，查询支付是否完成

准备

前往https://www.paypal.com/注册商家账号
前往https://developer.paypal.com/，使用刚注册的商家账号登录
点击右上角名字，选择Dashboard
在左边的导航栏中点击 Sandbox 下的 Accounts
进入Acccouts界面后，可以看到系统有两个已经生成好的测试账号，但是我们不要用系统给的测试账号，自己创建两个，一个是商家账号，一个是个人账号
1. 点击右上角的“Create Account”，创建测试用户
2. 先创建一个“ PERSONAL”类型的用户，国家一定要选“China”，账户余额自己填写（邮箱地址可以随便写，自己好记就行）
3. 接着创建一个“BUSINESS”类型的用户，国家一定要选“China”，账户余额自己填写（邮箱地址可以随便写，自己好记就行）
4. 创建好之后可以点击测试账号下的”Profile“，可以查看信息，如果没加载出来，刷新
5. 用测试账号登录测试网站查看，注意！这跟paypal官网不同！不是同一个地址，在浏览器输入：https://www.sandbox.paypal.com 在这里登陆测试账户
创建应用，生成用于测试的clientID 和密钥
1. 点击左边导航栏Dashboard下的My Apps & Credentials，创建一个Live账号
2. 然后再到下边创建App
  3.点击刚刚创建好的App，注意看到”ClientID“ 和”Secret“(Secret如果没显示，点击下面的show就会看到，点击后show变为hide)

开始撸代码

Android，以下内容出自：`http://www.jianshu.com/p/7a064f2fbfa0`

添加依赖

`compile('com.paypal.sdk:paypal-android-sdk:2.15.1')
{ exclude group: 'io.card' }//禁止通过信用卡直接支付，如果不禁止可以直接去掉这一句`

强制在你的编译版本上执行编译操作（编译不过的时候才建议添加）
<uses-sdk android:minSdkVersion="这里填写你需要的编译版本" tools:overrideLibrary="com.paypal.android.sdk.payments" />

封装好的工具类

`import android.app.Activity;import android.content.Context;import android.content.Intent;import android.util.Log;import com.globalegrow.app.gearbest.network.HttpCallBack;import com.globalegrow.app.gearbest.widget.CustomToast;import com.paypal.android.sdk.payments.PayPalAuthorization;import com.paypal.android.sdk.payments.PayPalConfiguration;import com.paypal.android.sdk.payments.PayPalFuturePaymentActivity;import com.paypal.android.sdk.payments.PayPalItem;import com.paypal.android.sdk.payments.PayPalPayment;import com.paypal.android.sdk.payments.PayPalPaymentDetails;import com.paypal.android.sdk.payments.PayPalProfileSharingActivity;import com.paypal.android.sdk.payments.PayPalService;import com.paypal.android.sdk.payments.PaymentActivity;import com.paypal.android.sdk.payments.PaymentConfirmation;import org.json.JSONException;import org.json.JSONObject;import java.io.IOException;import java.math.BigDecimal;/*** Create by Moosen on 09/11/2016*/public class PayPalHelper {private static final String TAG = "PayPalHelper";//配置何种支付环境，一般沙盒，正式private static final String CONFIG_ENVIRONMENT = PayPalConfiguration.ENVIRONMENT_SANDBOX;// note that these credentials will differ between live & sandbox environments.//你所注册的APP Idprivate static final String CONFIG_CLIENT_ID = "";private static final int REQUEST_CODE_PAYMENT = 1;private static final int REQUEST_CODE_FUTURE_PAYMENT = 2;private static final int REQUEST_CODE_PROFILE_SHARING = 3;private static PayPalConfiguration config = new PayPalConfiguration().environment(CONFIG_ENVIRONMENT).clientId(CONFIG_CLIENT_ID);//以下配置是授权支付的时候用到的//            .merchantName("Example Merchant")//            .merchantPrivacyPolicyUri(Uri.parse("https://www.example.com/privacy"))//            .merchantUserAgreementUri(Uri.parse("https://www.example.com/legal"));private static PayPalHelper payPalHelper;private PayPalHelper() {}public static PayPalHelper getInstance() {if (payPalHelper == null) {synchronized (PayPalHelper.class) {payPalHelper = new PayPalHelper();}}return payPalHelper;}/*** 启动PayPal服务** @param context*/public void startPayPalService(Context context) {Intent intent = new Intent(context, PayPalService.class);intent.putExtra(PayPalService.EXTRA_PAYPAL_CONFIGURATION, config);context.startService(intent);}/*** 停止PayPal服务  sdfsdfsdssaaass** @param context*/public void stopPayPalService(Context context) {context.stopService(new Intent(context, PayPalService.class));}/*** 开始执行支付操作** @param context*/public void doPayPalPay(Context context) {/** PAYMENT_INTENT_SALE will cause the payment to complete immediately.* Change PAYMENT_INTENT_SALE to*   - PAYMENT_INTENT_AUTHORIZE to only authorize payment and capture funds later.*   - PAYMENT_INTENT_ORDER to create a payment for authorization and capture*     later via calls from your server.** Also, to include additional payment details and an item list, see getStuffToBuy() below.*/PayPalPayment thingToBuy = getStuffToBuy(PayPalPayment.PAYMENT_INTENT_SALE);/** See getStuffToBuy(..) for examples of some available payment options.*/Intent intent = new Intent(context, PaymentActivity.class);// send the same configuration for restart resiliencyintent.putExtra(PayPalService.EXTRA_PAYPAL_CONFIGURATION, config);intent.putExtra(PaymentActivity.EXTRA_PAYMENT, thingToBuy);((Activity) context).startActivityForResult(intent, REQUEST_CODE_PAYMENT);}/** This method shows use of optional payment details and item list.** 直接给PP创建支付的信息，支付对象实体信息*/private PayPalPayment getStuffToBuy(String paymentIntent) {//--- include an item list, payment amount details//具体的产品信息列表PayPalItem[] items ={new PayPalItem("sample item #1", 2, new BigDecimal("0.50"), "USD","sku-12345678"),new PayPalItem("free sample item #2", 1, new BigDecimal("0.00"),"USD", "sku-zero-price"),new PayPalItem("sample item #3 with a longer name", 6, new BigDecimal("0.99"),"USD", "sku-33333")};BigDecimal subtotal = PayPalItem.getItemTotal(items);BigDecimal shipping = new BigDecimal("0.21");BigDecimal tax = new BigDecimal("0.67");PayPalPaymentDetails paymentDetails = new PayPalPaymentDetails(shipping, subtotal, tax);BigDecimal amount = subtotal.add(shipping).add(tax);PayPalPayment payment = new PayPalPayment(amount, "USD", "sample item", paymentIntent);payment.items(items).paymentDetails(paymentDetails);//--- set other optional fields like invoice_number, custom field, and soft_descriptorpayment.custom("This is text that will be associated with the payment that the app can use.");return payment;}/*** 处理支付之后的结果** @param context* @param requestCode* @param resultCode* @param data*/public void confirmPayResult(final Context context, int requestCode, int resultCode, Intent data, final DoResult doResult) {if (requestCode == REQUEST_CODE_PAYMENT) {if (resultCode == Activity.RESULT_OK) {PaymentConfirmation confirm =data.getParcelableExtra(PaymentActivity.EXTRA_RESULT_CONFIRMATION);if (confirm != null) {try {Log.i(TAG, confirm.toJSONObject().toString(4));Log.i(TAG, confirm.getPayment().toJSONObject().toString(4));/***  TODO: send 'confirm' (and possibly confirm.getPayment() to your server for verification* or consent completion.* See https://developer.paypal.com/webapps/developer/docs/integration/mobile/verify-mobile-payment/* for more details.** For sample mobile backend interactions, see* https://github.com/paypal/rest-api-sdk-python/tree/master/samples/mobile_backend*///                        displayResultText("PaymentConfirmation info received from PayPal");// 这里直接跟服务器确认支付结果，支付结果确认后回调处理结果JSONObject jsonObject = confirm.toJSONObject();if (jsonObject != null) {JSONObject response = jsonObject.optJSONObject("response");if (response != null) {String id = response.optString("id");try {CartManager.getInstance().confirmPayPalPayPrice(context, id, new HttpCallBack<String>() {@Overridepublic void onSuccess(String responseString) {if (responseString != null) {try {JSONObject jsonObject = new JSONObject(responseString);if (jsonObject != null) {int resultcode = jsonObject.optInt("_resultcode");String msg = jsonObject.optString("_msg");if (200 == resultcode) {doResult.confirmSuccess();Log.i(TAG, "dddddddd");} else {Log.i(TAG, "ssssssss");CustomToast.getInstance(context).showToast(msg);doResult.confirmNetWorkError();}CustomToast.getInstance(context).showToast(msg);}} catch (JSONException e) {e.printStackTrace();doResult.confirmNetWorkError();}}}@Overridepublic void onFailure(IOException e) {Log.i(TAG, "aaaaaaaa");doResult.confirmNetWorkError();}});} catch (Exception e) {e.printStackTrace();doResult.confirmNetWorkError();}}}} catch (JSONException e) {Log.e(TAG, "an extremely unlikely failure occurred: ", e);doResult.confirmNetWorkError();}}} else if (resultCode == Activity.RESULT_CANCELED) {Log.i(TAG, "The user canceled.");doResult.customerCanceled();} else if (resultCode == PaymentActivity.RESULT_EXTRAS_INVALID) {doResult.invalidPaymentConfiguration();Log.i(TAG,"An invalid Payment or PayPalConfiguration was submitted. Please see the docs.");}} else if (requestCode == REQUEST_CODE_FUTURE_PAYMENT) {if (resultCode == Activity.RESULT_OK) {PayPalAuthorization auth =data.getParcelableExtra(PayPalFuturePaymentActivity.EXTRA_RESULT_AUTHORIZATION);if (auth != null) {try {doResult.confirmFuturePayment();Log.i("FuturePaymentExample", auth.toJSONObject().toString(4));String authorization_code = auth.getAuthorizationCode();Log.i("FuturePaymentExample", authorization_code);//                        sendAuthorizationToServer(auth);//                        displayResultText("Future Payment code received from PayPal");} catch (JSONException e) {doResult.confirmNetWorkError();Log.e("FuturePaymentExample", "an extremely unlikely failure occurred: ", e);}}} else if (resultCode == Activity.RESULT_CANCELED) {Log.i("FuturePaymentExample", "The user canceled.");doResult.customerCanceled();} else if (resultCode == PayPalFuturePaymentActivity.RESULT_EXTRAS_INVALID) {doResult.invalidPaymentConfiguration();Log.i("FuturePaymentExample","Probably the attempt to previously start the PayPalService had an invalid PayPalConfiguration. Please see the docs.");}} else if (requestCode == REQUEST_CODE_PROFILE_SHARING) {if (resultCode == Activity.RESULT_OK) {PayPalAuthorization auth =data.getParcelableExtra(PayPalProfileSharingActivity.EXTRA_RESULT_AUTHORIZATION);if (auth != null) {try {Log.i("ProfileSharingExample", auth.toJSONObject().toString(4));String authorization_code = auth.getAuthorizationCode();Log.i("ProfileSharingExample", authorization_code);//                        sendAuthorizationToServer(auth);//                        displayResultText("Profile Sharing code received from PayPal");} catch (JSONException e) {Log.e("ProfileSharingExample", "an extremely unlikely failure occurred: ", e);}}} else if (resultCode == Activity.RESULT_CANCELED) {Log.i("ProfileSharingExample", "The user canceled.");} else if (resultCode == PayPalFuturePaymentActivity.RESULT_EXTRAS_INVALID) {Log.i("ProfileSharingExample","Probably the attempt to previously start the PayPalService had an invalid PayPalConfiguration. Please see the docs.");}}}/*** c处理完结果之后回调*/public interface DoResult {//与服务确认支付成功void confirmSuccess();//网络异常或者json返回有问题void confirmNetWorkError();//用户取消支付void customerCanceled();//授权支付void confirmFuturePayment();//订单支付验证无效void invalidPaymentConfiguration();}}
`

在你需要调起支付的页面配置支付环境（或者在基类配置相应的支付环境）

`//配置何种支付环境，一般沙盒，正式    private static final String CONFIG_ENVIRONMENT = PayPalConfiguration.ENVIRONMENT_SANDBOX;    // note that these credentials will differ between live & sandbox environments.    //你所注册的APP Id    private static final String CONFIG_CLIENT_ID = "你所注册的CLient Id";   private static final int REQUEST_CODE_PAYMENT = 1;    private static final int REQUEST_CODE_FUTURE_PAYMENT = 2;    private static final int REQUEST_CODE_PROFILE_SHARING = 3;    private static PayPalConfiguration config = new PayPalConfiguration()            .environment(CONFIG_ENVIRONMENT)            .clientId(CONFIG_CLIENT_ID);    //以下配置是授权支付的时候用到的//.merchantName("Example Merchant")// .merchantPrivacyPolicyUri(Uri.parse("https://www.example.com/privacy"))//.merchantUserAgreementUri(Uri.parse("https://www.example.com/legal"));
`

在类的onCreate方法里面调起支付服务

`Intent intent = new Intent(this, PayPalService.class);intent.putExtra(PayPalService.EXTRA_PAYPAL_CONFIGURATION, config);startService(intent);
`

创建支付实体，在需要调起支付的地方调起支付

`public void onBuyPressed(View pressed) {//创建支付对象，用于传过去给PayPal服务器进行收款PayPalPayment thingToBuy = getThingToBuy(PayPalPayment.PAYMENT_INTENT_SALE);Intent intent = new Intent(SampleActivity.this, PaymentActivity.class);intent.putExtra(PayPalService.EXTRA_PAYPAL_CONFIGURATION, config);intent.putExtra(PaymentActivity.EXTRA_PAYMENT, thingToBuy);//这里直接调起PayPal的sdk进行付款操作startActivityForResult(intent, REQUEST_CODE_PAYMENT);}//这里只传一个总价格或者单个产品的信息收款情况private PayPalPayment getThingToBuy(String paymentIntent) {return new PayPalPayment(new BigDecimal("0.01"), "USD", "sample item",paymentIntent);}//这里是购买一系列产品创建购买对象private PayPalPayment getStuffToBuy(String paymentIntent) {PayPalItem[] items ={new PayPalItem("sample item #1", 2, new BigDecimal("87.50"), "USD","sku-12345678"),new PayPalItem("free sample item #2", 1, new BigDecimal("0.00"),"USD", "sku-zero-price"),new PayPalItem("sample item #3 with a longer name", 6, new BigDecimal("37.99"),"USD", "sku-33333")};BigDecimal subtotal = PayPalItem.getItemTotal(items);BigDecimal shipping = new BigDecimal("7.21");BigDecimal tax = new BigDecimal("4.67");PayPalPaymentDetails paymentDetails = new PayPalPaymentDetails(shipping, subtotal, tax);BigDecimal amount = subtotal.add(shipping).add(tax);PayPalPayment payment = new PayPalPayment(amount, "USD", "sample item", paymentIntent);payment.items(items).paymentDetails(paymentDetails);//--- set other optional fields like invoice_number, custom field, and soft_descriptorpayment.custom("This is text that will be associated with the payment that the app can use.");return payment;}
`

在类的onActivityResult 里进行回调结果的处理

`
if (resultCode == Activity.RESULT_OK) {PaymentConfirmation confirm =data.getParcelableExtra(PaymentActivity.EXTRA_RESULT_CONFIRMATION);if (confirm != null) {try {Log.i(TAG, confirm.toJSONObject().toString(4));Log.i(TAG, confirm.getPayment().toJSONObject().toString(4));//这里可以把PayPal带回来的json数据传给服务器以确认你的款项是否收到或者收全//可以直接把 confirm.toJSONObject() 这个带给服务器，//得到服务器返回的结果，你就可以跳转成功页面或者做相应的处理了} catch (JSONException e) {Log.e(TAG, "an extremely unlikely failure occurred: ", e);}}} else if (resultCode == Activity.RESULT_CANCELED) {Log.i(TAG, "The user canceled.");} else if (resultCode == PaymentActivity.RESULT_EXTRAS_INVALID) {Log.i(TAG,"An invalid Payment or PayPalConfiguration was submitted. Please see the docs.");}}

在类的onDestroy 注销服务

`
stopService(new Intent(this, PayPalService.class));
`

服务端，根据前端给的paymentId，判断是否完成付款

`package com.net.pay.paypal.service;import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;import net.sf.json.JSONArray;
import net.sf.json.JSONObject;import org.apache.commons.codec.binary.Base64;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import com.net.crud.dao.RechargeMapper;@Service
public class PayPalVerifyPayment {private static final String TOKEN_URL = "https://api.sandbox.paypal.com/v1/oauth2/token";private static final String PAYMENT_DETAIL = "https://api.sandbox.paypal.com/v1/payments/payment/";private static final String clientId = "clientId";private static final String secret = "secret";/*** 获取token* 了解更多：https://developer.paypal.com/webapps/developer/docs/integration/mobile/verify-mobile-payment/* @return*/private String getAccessToken(){try{URL url = new URL(TOKEN_URL);String authorization = clientId+":"+secret;authorization = Base64.encodeBase64String(authorization.getBytes());HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("POST");// 提交模式//设置请求头headerconn.setRequestProperty("Accept", "application/json");conn.setRequestProperty("Accept-Language", "en_US");conn.setRequestProperty("Authorization", "Basic "+authorization);// conn.setConnectTimeout(10000);//连接超时 单位毫秒// conn.setReadTimeout(2000);//读取超时 单位毫秒conn.setDoOutput(true);// 是否输入参数String params = "grant_type=client_credentials";conn.getOutputStream().write(params.getBytes());// 输入参数InputStreamReader inStream = new InputStreamReader(conn.getInputStream());BufferedReader reader = new BufferedReader(inStream);StringBuilder result = new StringBuilder();String lineTxt = null;while((lineTxt = reader.readLine()) != null){result.append(lineTxt);}reader.close();String accessTokey = JSONObject.fromObject(result.toString()).optString("access_token");System.out.println("getAccessToken:"+accessTokey);return accessTokey;}catch(Exception err){err.printStackTrace();}return null;}/*** 获取支付详情* 了解更多：https://developer.paypal.com/webapps/developer/docs/integration/mobile/verify-mobile-payment/* @param paymentId 支付ID，来自于用户客户端* @return*/public String getPaymentDetails(String paymentId){try{URL url = new URL(PAYMENT_DETAIL+paymentId);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");// 提交模式//设置请求头headerconn.setRequestProperty("Accept", "application/json");conn.setRequestProperty("Authorization", "Bearer "+getAccessToken());// conn.setConnectTimeout(10000);//连接超时 单位毫秒// conn.setReadTimeout(2000);//读取超时 单位毫秒InputStreamReader inStream = new InputStreamReader(conn.getInputStream());BufferedReader reader = new BufferedReader(inStream);StringBuilder result = new StringBuilder();String lineTxt = null;while((lineTxt = reader.readLine()) != null){result.append(lineTxt);}reader.close();return result.toString();}catch(Exception err){err.printStackTrace();}return null;}/*** 获取支付详情* 了解更多：https://developer.paypal.com/webapps/developer/docs/integration/mobile/verify-mobile-payment/* @param paymentId 支付ID，来自于用户客户端* @return*/public boolean verifyPayment(String paymentId) throws Exception {String str = getPaymentDetails(paymentId);System.out.println(str);JSONObject detail = JSONObject.fromObject(str);//校验订单是否完成if("approved".equals(detail.optString("state"))){JSONObject transactions = detail.optJSONArray("transactions").optJSONObject(0);JSONObject amount = transactions.optJSONObject("amount");JSONArray relatedResources = transactions.optJSONArray("related_resources");//从数据库查询支付总金额与Paypal校验支付总金额double total = 0;System.out.println("amount.optDouble('total'):"+amount.optDouble("total"));if( total != amount.optDouble("total") ){return false;}//校验交易货币类型String currency = "USD";if( !currency.equals(amount.optString("currency")) ){return false;}//校验每个子订单是否完成for (int i = 0,j = relatedResources.size(); i < j; i++) {JSONObject sale = relatedResources.optJSONObject(i).optJSONObject("sale");if(sale!=null){if( !"completed".equals(sale.optString("state")) ){System.out.println("子订单未完成,订单状态:"+sale.optString("state"));}}}return true;}return false;}public static void main(String[] args) {PayPalVerifyPayment payment = new PayPalVerifyPayment();boolean success = false;try {success = payment.verifyPayment("PAY-9MTXXXXXXXXXXXXXXXXXMI");} catch (Exception e) {e.printStackTrace();}System.out.println(success ? "支付完成" : "支付校验失败");}
}`

paypal的坑

正式环境下，大陆paypal账户不能跟大陆的paypal账户测试，这是一个坑，你需要注册香港的paypal账户测试，在paypal官网首页右下角有一个小红旗，换成香港的注册。

换成了香港的之后，paypal返回给你的json，有可能乱码，这又是一个坑，你需要在请求paypal返回的流就转码，如果流输出到内存了再转码是没用的，比如InputStreamReader inStream = new InputStreamReader(conn.getInputStream(),"utf-8");

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java集成paypal支付，含Android，服务端代码

支付流程

准备

开始撸代码

Android，以下内容出自：`http://www.jianshu.com/p/7a064f2fbfa0`

服务端，根据前端给的paymentId，判断是否完成付款

paypal的坑

java集成paypal支付，含Android，服务端代码相关推荐

最新文章

热门文章

java集成paypal支付，含Android，服务端代码

支付流程

准备

开始撸代码

Android，以下内容出自：http://www.jianshu.com/p/7a064f2fbfa0

服务端，根据前端给的paymentId，判断是否完成付款

paypal的坑

java集成paypal支付，含Android，服务端代码相关推荐

最新文章

热门文章

Android，以下内容出自：`http://www.jianshu.com/p/7a064f2fbfa0`