1、接入paypal

2、修改支付宝支付

src/main/java/com/ai/da/controller/PayPalCheckoutController.java

@@ -0,0 +1,80 @@
+package com.ai.da.controller;
+
+import com.ai.da.common.response.Response;
+import com.ai.da.service.CallBackService;
+import com.ai.da.service.PayPalCheckoutService;
+import com.paypal.http.HttpResponse;
+import com.paypal.http.exceptions.SerializeException;
+import com.paypal.orders.Order;
+import com.paypal.payments.Refund;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.*;
+
+import javax.annotation.Resource;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.HashMap;
+
+@RestController
+@Api(tags = "PayPalCheckout接口")
+@RequestMapping("/api/paypal")
+public class PayPalCheckoutController {
+
+    @Resource
+    private PayPalCheckoutService payPalCheckoutService;
+
+    @Resource
+    private CallBackService callBackService;
+
+    @ApiOperation(value = "创建订单")
+    @PostMapping(value = "/trade/{productId}")
+    public Response<HashMap<String, String>> createOrder(@PathVariable Long productId,@RequestParam String returnUrl) throws SerializeException {
+        HashMap<String, String> approvalUrl = payPalCheckoutService.createOrder(productId,returnUrl);
+        return Response.success(approvalUrl);
+    }
+
+    @ApiOperation(value = "ipn异步回调")
+    @PostMapping(value = "/ipn/back")
+    public Response<String> callback(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        Boolean result = callBackService.doGet(request, response);
+        if (result){
+            return Response.success();
+        }else {
+            return Response.fail(500,"failure");
+        }
+//        return payPalCheckoutService.callback(RequestToMapUtil.getParameterMap(request));
+    }
+
+    @ApiOperation(value = "查询指定订单")
+    @PostMapping(value = "/trade/query/{orderNo}")
+    public Response<String> queryOrder(@PathVariable String orderNo) throws SerializeException {
+        String s = payPalCheckoutService.queryOrder(orderNo);
+        return Response.success(s);
+    }
+
+    @ApiOperation("申请退款")
+    @PostMapping("/trade/refund/{orderNo}/{reason}")
+    public Response<HttpResponse<Refund>> refund(@PathVariable String orderNo, @PathVariable String reason) throws IOException {
+        Boolean response = payPalCheckoutService.refundOrder(orderNo,reason);
+        if (response){
+            return Response.success();
+        }else {
+            return Response.fail("Request for refund failed.");
+        }
+
+    }
+
+    @ApiOperation("执行扣款")
+    @PostMapping("/trade/capture/{orderNo}")
+    public Response<com.paypal.orders.Order> captureOrder(@PathVariable String orderNo) throws IOException {
+        Order response = payPalCheckoutService.captureOrder(orderNo);
+        return Response.success(response);
+    }
+
+
+
+}
+