java后端PayPal支付实现教程
作者：牛13转折点
本文主要介绍了java后端PayPal支付实现教程，文中通过示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
首先引入 PayPal的sdk 这里我引入的是1.0.4版本的
<!-- 贝宝支付 SDK -->
<dependency>
<groupId>com.paypal.sdk</groupId>
<artifactId>checkout-sdk</artifactId>
<paypal-sdk.version>1.0.4</paypal-sdk.version>
</dependency>
yml文件引入公司在官网的相关配置
这里我做了yml的文件环境隔离，限免的配置做了示例
# 贝宝支付的测试服
pay:
paypal:
clientId: AeEX1PNMNaP3RuV8JTBMznAhs_gOfFwloG6SG3TiQh1_MBj0
clientSecret: EMDda7g_Q7KmOiH08qJfg-dAb8d2THkYtzRR
#测试的mode
mode: sandbox
#正式的mode
mode: live
/**
* @author majun
* @email majun6534@dingtalk.com
* @date 2021/7/29
* @since 2.0.0
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
@ApiModel
public class PayPalVo extends RequestModel {
/** 本站订单号 */
@ApiModelProperty(value = "本站订单号")
private String orderNo;
/** 三方订单号 */
@ApiModelProperty(value = "本站订单号")
private String outOrderNo;
/** 1 书币充值 ; 2 plus会员充值；3 premium会员充值 */
@ApiModelProperty(value = "1 书币充值 ; 2 plus会员充值；3 premium会员充值")
private Integer orderType;
}
PayPal支付
/**
* 贝宝支付
*
* @param payPalVo 请求对象
* @return 返回结果
*/
@PostMapping("/payPalNotify")
@ApiOperation(value = "贝宝支付二次验证")
@Deprecated
public ResponseModel<PayOrderDto> payPalNotify(@RequestBody PayPalVo payPalVo){
if (ObjectUtils.isEmpty(payPalVo.getOrderNo()) || ObjectUtils.isEmpty(payPalVo.getOutOrderNo()) || ObjectUtils.isEmpty(payPalVo.getOrderType())){
return ResponseModel.error(appConfigStatusCodeService.getStatusCode(payPalVo.getLanguage(), ResponseCnSate.PARAM_EXCEPTION));
}
// 根据paypal的订单id，捕获订单付款
String outOrderNo = payPalVo.getOutOrderNo();
String orderNo = payPalVo.getOrderNo();
Integer orderType = payPalVo.getOrderType();
// 校验该订单是否处理
if (payOrderService.isDispose(orderNo) == PayConstants.ORDER_IS_DISPOSE) {
return ResponseModel.error(appConfigStatusCodeService.getStatusCode(payPalVo.getLanguage(), ResponseCnSate.ORDER_PROCESSED));
}
//进行二次验证
Boolean pay = payPalUtils.verifyOrderInfo(outOrderNo);
//如果成功则执行后面的逻辑
if (pay){
boolean b = orderService.finishOrder(orderNo, orderType,payPalVo.getLanguage());
if (!b){
return ResponseModel.error(appConfigStatusCodeService.getStatusCode(payPalVo.getLanguage(), ResponseCnSate.ORDER_HANDLER_FAIL));
}
//保存订单号返回订单信息
PayOrderDto payOrderDto =orderService.saveAndGetOrderInfo(payPalVo.getUserId(),outOrderNo,orderNo);
if (ObjectUtils.isNotEmpty(payOrderDto)){
return ResponseModel.success(payOrderDto);
}
return ResponseModel.error(appConfigStatusCodeService.getStatusCode(payPalVo.getLanguage(), ResponseCnSate.RETURN_ORDER_INFO_FAIL));
}
//失败返回提示
return ResponseModel.error(appConfigStatusCodeService.getStatusCode(payPalVo.getLanguage(), ResponseCnSate.AUTH_FAIL_TWO));
}
后面为了让大家都看的明白 我单独抽取了一个工具，简单的做了描述
package com.wyzz.global.untils.paypal;
import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.paypal.core.PayPalEnvironment;
import com.paypal.core.PayPalHttpClient;
import com.paypal.http.HttpResponse;
import com.paypal.http.serializer.Json;
import com.paypal.orders.*;
import com.paypal.payments.CapturesGetRequest;
import lombok.extern.slf4j.Slf4j;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
/**
* PayPal工具类
*
* @author majun
* @email majun6534@dingtalk.com
* @date 2021/7/29
* @since 2.0.0
*/
@Service
@Slf4j
public class PayPalUtils {
/**
* paypal配置应用的客户端ID
*/
@Value("${pay.paypal.clientId}")
private String clientId;
/**
* paypal配置应用的客户端密钥
*/
@Value("${pay.paypal.clientSecret}")
private String clientSecret;
/**
* paypal连接环境：live表示生产，sandbox表示沙盒
*/
@Value("${pay.paypal.mode}")
private String mode;
/**
* paypal的http客户端
* @param mode 环境信息
* @param clientId 客户端ID
* @param clientSecret 密钥
* @return
*/
public PayPalHttpClient client(String mode, String clientId, String clientSecret) {
log.info("mode={}, clientId={}, clientSecret={}", mode, clientId, clientSecret);
PayPalEnvironment environment = mode.equals("live") ? new PayPalEnvironment.Live(clientId, clientSecret) : new PayPalEnvironment.Sandbox(clientId, clientSecret);
return new PayPalHttpClient(environment);
}
/**
* 构建订单请求体
* @return
*/
public OrderRequest buildRequestBody() {
return new OrderRequest();
}
/**
* 校验订单信息：先扣款，后查询订单详情
* @param orderId 前端提供的palpay的订单id
* @return 订单存在并已扣款成功返回true
*/
public Boolean verifyOrderInfo(String orderId) {
Boolean f = false;
try {
// 1.用户授权支付成功，进行扣款操作
this.captureOrder(orderId);
} catch (Exception e) {
e.printStackTrace();
} finally {
// 2.扣款操作失败时也要查询订单，确认是否已扣款
try {
OrdersGetRequest request = new OrdersGetRequest(orderId);
HttpResponse<Order> response = client(mode, clientId, clientSecret).execute(request);
System.out.println("Status Code: " + response.statusCode());
System.out.println("Status: " + response.result().status());
System.out.println("Order id: " + response.result().id());
if(response.result().purchaseUnits().get(0).payments() != null) {
List<Capture> captures = response.result().purchaseUnits().get(0).payments().captures();
if(captures != null) {
for (Capture capture : captures) {
if (capture.id() != null && capture.id().length() > 0) {
f = true;
}
}
}
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return f;
}
/**
* 用户授权支付成功，进行扣款操作：
* 用户通过CreateOrder生成 approveUrl 跳转paypal支付成功后，只是授权，并没有将用户的钱打入我们的paypal账户，我们需要通过 CaptureOrder接口，将钱打入我的PayPal账户
* @param orderId 前端提供的palpay的订单id
*/
public void captureOrder(String orderId){
OrdersCaptureRequest request = new OrdersCaptureRequest(orderId);
request.requestBody(this.buildRequestBody());
HttpResponse<Order> response = null;
try {
response = client(mode, clientId, clientSecret).execute(request);
} catch (IOException e1) {
try {
log.error("第1次调用paypal扣款失败");
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e) {
try {
log.error("第2次调用paypal扣款失败");
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e2) {
log.error("第3次调用paypal扣款失败，失败原因 {}", e2.getMessage() );
}
}
}
if (ObjectUtils.isNotEmpty(response)) {
log.info("Status Code = {}, Status = {}, OrderID = {}", response.statusCode(), response.result().status(), response.result().id());
for (LinkDescription link : response.result().links()) {
log.info("Links-{}: {} \tCall Type: {}", link.rel(), link.href(), link.method());
}
for (PurchaseUnit purchaseUnit : response.result().purchaseUnits()) {
for (Capture capture : purchaseUnit.payments().captures()) {
log.info("Capture id: {}", capture.id());
log.info("status: {}", capture.status());
log.info("invoice_id: {}", capture.invoiceId());
if("COMPLETED".equals(capture.status())) {
//进行数据库操作，修改订单状态为已支付成功，尽快发货（配合回调和CapturesGet查询确定成功）
log.info("支付成功,状态为=COMPLETED");
}
if("PENDING".equals(capture.status())) {
log.info("status_details: {}", capture.captureStatusDetails().reason());
String reason = "PENDING";
if(capture.captureStatusDetails() != null && capture.captureStatusDetails().reason() != null) {
reason = capture.captureStatusDetails().reason();
}
//进行数据库操作，修改订单状态为已支付成功，但触发了人工审核，请审核通过后再发货（配合回调和CapturesGet查询确定成功）
log.info("支付成功,状态为=PENDING : {}", reason);
}
}
}
Payer buyer = response.result().payer();
log.info("Buyer Email Address: {}", buyer.email());
log.info("Buyer Name: {} {}", buyer.name().givenName(), buyer.name().surname());
}
}
/**
* 查询订单详情
* @param orderId 前端提供的palpay的订单id
* @throws IOException
*/
public void ordersGetRequest(String orderId) throws IOException {
OrdersGetRequest request = new OrdersGetRequest(orderId);
HttpResponse<Order> response = null;
try {
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e) {
try {
System.out.println("调用paypal订单查询失败，链接异常1");
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e2) {
try {
System.out.println("调用paypal订单查询失败，链接异常2");
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e3) {
System.out.println("调用paypal订单查询失败，链接异常3");
System.out.println(e3.getMessage());
}
}
}
System.out.println("Status Code: " + response.statusCode());
System.out.println("Status: " + response.result().status());
System.out.println("Order id: " + response.result().id());
if(response.result().purchaseUnits().get(0).payments() != null) {
List<Capture> captures = response.result().purchaseUnits().get(0).payments().captures();
if(captures != null) {
for (Capture capture : captures) {
System.out.println("\t订单编号= " + capture.invoiceId() + "\tCapture Id= " + capture.id() + "\tCapture status= " + capture.status() + "\tCapture amount= " + capture.amount().currencyCode() + ":" + capture.amount().value());
}
}
List<Refund> refunds = response.result().purchaseUnits().get(0).payments().refunds();
if(refunds != null) {
for (Refund refund : refunds) {
System.out.println("\t售后编号= " + refund.invoiceId() + "\tRefund Id= " + refund.id() + "\tRefund status= " + refund.status() + "\tRefund amount= " + refund.amount().currencyCode() + ":" + refund.amount().value());
}
}
}
System.out.println("Links: ");
for (LinkDescription link : response.result().links()) {
System.out.println("\t" + link.rel() + ": " + link.href() + "\tCall Type: " + link.method());
}
}
/**
* 查询扣款详情
* @param orderId 前端提供的palpay的订单id
* @throws IOException
*/
public void capturesGetRequest(String orderId) throws IOException {
CapturesGetRequest request = new CapturesGetRequest(orderId);
HttpResponse<com.paypal.payments.Capture> response = client(mode, clientId, clientSecret).execute(request);
System.out.println("Status Code: " + response.statusCode());
System.out.println("Status: " + response.result().status());
System.out.println("Capture ids: " + response.result().id());
System.out.println("Links: ");
for (com.paypal.payments.LinkDescription link : response.result().links()) {
System.out.println("\t" + link.rel() + ": " + link.href() + "\tCall Type: " + link.method());
}
}
public Map<String,Object> createOrder(OrderRequest orderRequest) {
OrdersCreateRequest request = new OrdersCreateRequest();
request.header("prefer","return=representation");
request.requestBody(orderRequest);
// PayPalClient payPalClient = new PayPalClient();
HttpResponse<Order> response = null;
try {
response = client(mode, clientId, clientSecret).execute(request);
} catch (IOException e1) {
try {
log.error("第1次调用paypal订单创建失败");
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e) {
try {
log.error("第2次调用paypal订单创建失败");
response = client(mode, clientId, clientSecret).execute(request);
} catch (Exception e2) {
log.error("第3次调用paypal订单创建失败，失败原因：{}", e2.getMessage());
}
}
}
// String approve = "";
Map<String,Object> map = new HashMap();
if (response.statusCode() == 201) {
log.info("Status Code = {}, Status = {}, OrderID = {}, Intent = {}", response.statusCode(), response.result().status(), response.result().id(), response.result().checkoutPaymentIntent());
map.put("Id",response.result().id());
for (LinkDescription link : response.result().links()) {
log.info("Links-{}: {} \tCall Type: {}", link.rel(), link.href(), link.method());
if(link.rel().equals("approve")) {
// approve = link.href();
map.put("outOrderNo",link.href());
}
}
String totalAmount = response.result().purchaseUnits().get(0).amountWithBreakdown().currencyCode() + ":" + response.result().purchaseUnits().get(0).amountWithBreakdown().value();
log.info("Total Amount: {}", totalAmount);
// String json= new JSONObject(new Json().serialize(response.result())).toString(4);
// log.info("createOrder response body: {}", json);
}
return map;
}
// public static void main(String[] args) throws Exception {
// PayPalUtils payPalUtils = new PayPalUtils();
// payPalUtils.verifyOrderInfo("45S82276S8854414K");
// payPalUtils.ordersGetRequest("45S82276S8854414K");
// payPalUtils.captureOrder("18K07174PX6483500");
// payPalUtils.capturesGetRequest("31V65486WC667442G");
// // issue ： ORDER_ALREADY_CAPTURED 订单已被捕获
// // intent=CAPTURE 每个订单只允许捕获一次
// }
}
不敢说描述的有多么到位 只希望给java将要对接paypal的同学一点儿参考
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