海外读书

2024-11-26 15:13:38 +08:00
parent 3fc7a80580
commit a0c42ecea0
37 changed files with 1234 additions and 9 deletions
--- a/src/main/java/com/peanut/modules/pay/paypal/PaypalConfig.java
+++ b/src/main/java/com/peanut/modules/pay/paypal/PaypalConfig.java
@@ -0,0 +1,183 @@
+package com.peanut.modules.pay.paypal;
+
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.*;
+
+@Component
+@Slf4j
+public class PaypalConfig {
+
+    //沙盒
+    public static final String modeUrl = "https://api-m.sandbox.paypal.com";
+    public static final String CLIENID ="Ab8SeEuhkLGp6Fts9V3Cti0UcXQhITRWZkiHDM3U1fDY9YrrRc5IOcYHPfV6qROhmh0hvgysqrfOCSUr";
+    public static final String SECRET ="EF63FGWI9fd4q07Ndvc_h8P7jxiZcGOWn8Ul_y1_EKpluKJNFHOW8BP62Kf1wBDQ3XYIeqF8_kVrDF7C";
+    public static final String WEBSCR ="https://www.sandbox.paypal.com/cgi-bin/webscr";//回调验证地址
+
+    //正式
+//    public static final String modeUrl = "https://api-m.paypal.com";
+//    public static final String CLIENID ="";
+//    public static final String SECRET ="";
+//    public static final String WEBSCR ="https://www.paypal.com/cgi-bin/webscr";
+
+
+    public static final String accessTokenURL = "/v1/oauth2/token";
+    public static final String createOrderURL = "/v2/checkout/orders";
+    public static final String captureURL = "/v2/checkout/orders/%1s/capture";
+    public static final String orderInfoURL = "/v2/checkout/orders/";
+    public static final String refundURL = "/v2/payments/captures/%1s/refund";
+    public static final String refundInfoURL = "/v2/payments/refunds/";
+
+
+
+    //回调验证
+    public String receiveVerify(String verifyData) throws Exception{
+        URL url = new URL(WEBSCR);
+        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+        connection.setRequestMethod("POST");
+        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
+        connection.setDoOutput(true);
+        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
+        writer.write(verifyData);
+        writer.flush();
+        writer.close();
+        connection.getOutputStream().close();
+        InputStream responseStream = connection.getResponseCode() / 100 == 2
+                ? connection.getInputStream()
+                : connection.getErrorStream();
+        Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+        String response = s.hasNext() ? s.next() : "";
+        System.out.println(response);
+        return response;
+    }
+
+    //退款查询
+    public JSONObject refundInfo(String refundId) throws Exception{
+        URL url = new URL(modeUrl+refundInfoURL+refundId);
+        HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
+        httpConn.setRequestMethod("GET");
+        httpConn.setRequestProperty("Content-Type", "application/json");
+        httpConn.setRequestProperty("Authorization", "Bearer " + getAccessToken().get("access_token"));
+
+        InputStream responseStream = httpConn.getResponseCode() / 100 == 2
+                ? httpConn.getInputStream()
+                : httpConn.getErrorStream();
+        Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+        String response = s.hasNext() ? s.next() : "";
+        System.out.println(response);
+        return JSONObject.parseObject(response);
+    }
+
+    //退款
+    public JSONObject refund(String captureId) throws Exception{
+        URL url = new URL(String.format(modeUrl+refundURL,captureId));
+        HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
+        httpConn.setRequestMethod("POST");
+        httpConn.setRequestProperty("Content-Type", "application/json");
+        httpConn.setRequestProperty("Authorization", "Bearer " + getAccessToken().get("access_token"));
+        httpConn.setRequestProperty("Prefer", "return=representation");
+        httpConn.setDoOutput(true);
+
+        InputStream responseStream = httpConn.getResponseCode() / 100 == 2
+                ? httpConn.getInputStream()
+                : httpConn.getErrorStream();
+        Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+        String response = s.hasNext() ? s.next() : "";
+        System.out.println(response);
+        return JSONObject.parseObject(response);
+    }
+
+    //订单查询
+    public JSONObject orderInfo(String paypalOrderId) throws Exception{
+        URL url = new URL(modeUrl+orderInfoURL+paypalOrderId);
+        HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
+        httpConn.setRequestMethod("GET");
+        httpConn.setRequestProperty("Authorization", "Bearer " + getAccessToken().get("access_token"));
+
+        InputStream responseStream = httpConn.getResponseCode() / 100 == 2
+                ? httpConn.getInputStream()
+                : httpConn.getErrorStream();
+        Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+        String response = s.hasNext() ? s.next() : "";
+        System.out.println(response);
+        return JSONObject.parseObject(response);
+    }
+
+    //用户授权支付成功，进行扣款操作
+    public JSONObject capture(String paypalOrderId) throws Exception{
+        URL url = new URL(String.format(modeUrl+captureURL,paypalOrderId));
+        HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
+        httpConn.setRequestMethod("POST");
+        httpConn.setRequestProperty("Content-Type", "application/json");
+        httpConn.setRequestProperty("Authorization", "Bearer " + getAccessToken().get("access_token"));
+
+        InputStream responseStream = httpConn.getResponseCode() / 100 == 2
+                ? httpConn.getInputStream()
+                : httpConn.getErrorStream();
+        Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+        String response = s.hasNext() ? s.next() : "";
+        return JSONObject.parseObject(response);
+    }
+
+    //下单
+    public JSONObject createOrder(JSONObject jsonObject){
+        try{
+            URL u = new URL(modeUrl+createOrderURL);
+            HttpURLConnection connection = (HttpURLConnection) u.openConnection();
+            connection.setRequestMethod("POST");
+            connection.setRequestProperty("Content-Type", "application/json");
+            connection.setRequestProperty("Authorization", "Bearer " + getAccessToken().get("access_token"));
+            connection.setDoOutput(true);
+            OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
+            writer.write(jsonObject.toString());
+            writer.flush();
+            writer.close();
+            connection.getOutputStream().close();
+            InputStream responseStream = connection.getResponseCode() / 100 == 2
+                    ? connection.getInputStream()
+                    : connection.getErrorStream();
+            Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+            String response = s.hasNext() ? s.next() : "";
+            return JSONObject.parseObject(response);
+        }catch (Exception e) {
+            log.error(">>>>>>>>>>:PayPal创建订单网络连接失败 reason = {}", e.getMessage());
+            e.printStackTrace();
+            return JSONObject.parseObject("{'error':'PayPal创建订单网络连接失败，请联系管理员'}");
+        }
+    }
+
+    public JSONObject getAccessToken(){
+        try {
+            String credentials = CLIENID + ":" + SECRET;
+            String encodedCredentials = Base64.getEncoder().encodeToString(credentials.getBytes());
+            URL url = new URL(modeUrl+accessTokenURL);
+            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+            connection.setRequestMethod("POST");
+            connection.setRequestProperty("Authorization", "Basic " + encodedCredentials);
+            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
+            connection.setDoOutput(true);
+            String postParameters = "grant_type=client_credentials";
+            try (OutputStream os = connection.getOutputStream()) {
+                byte[] postParametersBytes = postParameters.getBytes();
+                os.write(postParametersBytes);
+                os.flush();
+            }
+            InputStream responseStream = connection.getResponseCode() / 100 == 2
+                    ? connection.getInputStream()
+                    : connection.getErrorStream();
+            Scanner s = new Scanner(responseStream).useDelimiter("\\A");
+            String response = s.hasNext() ? s.next() : "";
+            return JSONObject.parseObject(response);
+        }catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+}
--- a/src/main/java/com/peanut/modules/pay/paypal/PaypalController.java
+++ b/src/main/java/com/peanut/modules/pay/paypal/PaypalController.java
@@ -0,0 +1,150 @@
+package com.peanut.modules.pay.paypal;
+
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
+import com.peanut.common.utils.R;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.net.URLEncoder;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * paypal支付
+ */
+@RestController
+@RequestMapping("/pay/paypal")
+@Slf4j
+public class PaypalController {
+    //点击购买          ->去支付  ->跳转完成、取消页面
+    //       ->创建订单                       ->（支付完成）确认付款，打款到商家账户  ->支付成功
+
+    @Autowired
+    private PaypalConfig paypalConfig;
+
+    @RequestMapping("/getAccessToken")
+    public R getAccessToken(){
+        JSONObject res = paypalConfig.getAccessToken();
+        return R.ok().put("res",res);
+    }
+
+    @RequestMapping("/createOrder")
+    public R createOrder(@RequestBody Map<String,Object> params){
+        JSONArray purchase_units = new JSONArray();
+        JSONObject purchaseUnit = new JSONObject();
+        JSONObject amount = new JSONObject();
+        amount.put("currency_code", "USD");//美元
+        amount.put("value", params.get("amount"));// 金额
+        purchaseUnit.put("custom_id",params.get("orderSn"));
+        purchaseUnit.put("invoice_id",params.get("orderSn"));
+        purchaseUnit.put("amount",amount);
+        purchaseUnit.put("description", params.get("description"));
+        purchase_units.add(purchaseUnit);
+        //取消地址、返回地址设置
+        JSONObject applicationContext = new JSONObject();
+        applicationContext.put("user_action", "PAY_NOW");//付款按钮显示立即付款
+        applicationContext.put("shipping_preference", "NO_SHIPPING");//从 PayPal 网站编辑送货地址。推荐用于数字商品。
+        applicationContext.put("return_url", params.get("returnUrl"));//客户批准付款后重定向到客户的 URL
+        applicationContext.put("cancel_url", params.get("cancelUrl"));//客户取消付款后，客户被重定向的 URL
+        JSONObject jsonObject = new JSONObject();
+        // 用户付款了，商户立即收款
+        jsonObject.put("intent","CAPTURE");
+        jsonObject.put("purchase_units",purchase_units);
+        jsonObject.put("application_context", applicationContext);
+        JSONObject res = paypalConfig.createOrder(jsonObject);
+        if (res.containsKey("links")&&res.containsKey("status")){
+            if ("CREATED".equals(res.get("status").toString())){
+                List<JSONObject> links = (List)res.get("links");
+                for (JSONObject o:links) {
+                    if ("approve".equals(o.get("rel").toString())){
+                        return R.ok().put("res",o.get("href").toString());
+                    }
+                }
+            }
+        }
+        return R.error(res.get("error").toString());
+    }
+
+    @RequestMapping("/orderInfo")
+    public R orderInfo(@RequestBody Map<String,Object> params) throws Exception{
+        JSONObject res = paypalConfig.orderInfo(params.get("paypalId").toString());
+        return R.ok().put("res",res);
+    }
+
+    @RequestMapping("/capture")
+    public R capture(@RequestBody Map<String,Object> params) throws Exception{
+        JSONObject res = paypalConfig.capture(params.get("paypalId").toString());
+        return R.ok().put("res",res);
+    }
+
+    @RequestMapping("/refund")
+    public R refund(@RequestBody Map<String,Object> params) throws Exception{
+        JSONObject res = paypalConfig.refund(params.get("captureId").toString());
+        return R.ok().put("res",res);
+    }
+
+    @RequestMapping("/refundInfo")
+    public R refundInfo(@RequestBody Map<String,Object> params) throws Exception{
+        JSONObject res = paypalConfig.refundInfo(params.get("refundId").toString());
+        return R.ok().put("res",res);
+    }
+
+    @RequestMapping("/receivePaypalStatus")
+    public void receivePaypalStatus(HttpServletRequest request, HttpServletResponse response) throws Exception{
+        //获取paypal请求参数,并拼接验证参数
+        Enumeration<String> en = request.getParameterNames();
+        String str = "cmd=_notify-validate";
+        while (en.hasMoreElements()) {
+            String paramName = en.nextElement();
+            String paramValue = request.getParameter(paramName);
+            str = str + "&" + paramName + "=" + paramValue;
+        }
+        System.out.println(str);
+        //发送给papal,确认回调信息的安全性
+        String res = paypalConfig.receiveVerify(str);
+        if ("VERIFIED".equals(res)){
+            // 交易状态 Completed 代表交易成功
+            String paymentStatus = request.getParameter("payment_status");
+            // 交易时间
+            String paymentDate = request.getParameter("payment_date");
+            // 付款人email
+            String payerEmail = request.getParameter("payer_email");
+            // 付款人id
+            String payerId = request.getParameter("payer_id");
+            // 交易金额
+            String mcGross = request.getParameter("mc_gross");
+            // 手续费
+            String paymentFee = request.getParameter("payment_fee");
+            // 自定义字段，存放订单号
+            String custom = request.getParameter("custom");
+
+        }
+    }
+
+    @RequestMapping("/receiveVerify")
+    public R receiveVerify(@RequestBody Map<String,Object> params) throws Exception{
+        String res = params.get("verifyData").toString();
+        Map<String,Object> map = new HashMap<>();
+        String[] items = res.split("&");
+        for (String item : items) {
+            String[] keyValues = item.split("=");
+            if (keyValues.length>1){
+                map.put(keyValues[0],keyValues[1]);
+            }else {
+                map.put(keyValues[0],"");
+            }
+        }
+
+        return R.ok().put("res",map);
+    }
+
+
+}