添加支付宝支付能力

common/pom.xml

@@ -63,6 +63,11 @@
             <artifactId>wechatpay-java</artifactId>
             <version>0.2.15</version>
         </dependency>
+        <dependency>
+            <groupId>com.alipay.sdk</groupId>
+            <artifactId>alipay-sdk-java</artifactId>
+            <version>4.40.791.ALL</version>
+        </dependency>
         <dependency>
             <groupId>com.aliyun</groupId>
             <artifactId>dysmsapi20170525</artifactId>

common/src/main/java/org/jiayunet/alipay/AlipayClientConfig.java

@@ -0,0 +1,41 @@
+package org.jiayunet.alipay;
+
+import com.alipay.api.AlipayClient;
+import com.alipay.api.AlipayConfig;
+import com.alipay.api.DefaultAlipayClient;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * 支付宝客户端配置
+ *
+ * @author zk
+ */
+@Configuration
+@ConditionalOnProperty(name = "alipay.status", havingValue = "open")
+public class AlipayClientConfig {
+
+    @Value("${alipay.app_id}")
+    private String appId;
+
+    @Value("${alipay.private_key}")
+    private String privateKey;
+
+    @Value("${alipay.alipay_public_key}")
+    private String alipayPublicKey;
+
+    @Bean
+    public AlipayClient alipayClient() throws Exception {
+        AlipayConfig config = new AlipayConfig();
+        config.setServerUrl("https://openapi.alipay.com/gateway.do");
+        config.setAppId(appId);
+        config.setPrivateKey(privateKey);
+        config.setFormat("json");
+        config.setAlipayPublicKey(alipayPublicKey);
+        config.setCharset("UTF-8");
+        config.setSignType("RSA2");
+        return new DefaultAlipayClient(config);
+    }
+}

common/src/main/java/org/jiayunet/alipay/AlipayNotifyController.java

@@ -0,0 +1,74 @@
+package org.jiayunet.alipay;
+
+import com.alipay.api.AlipayApiException;
+import com.alipay.api.internal.util.AlipaySignature;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 支付宝支付回调入口
+ *
+ * @author zk
+ */
+@RestController
+@ConditionalOnProperty(name = "alipay.status", havingValue = "open")
+@RequestMapping("/public/alipayNotify")
+@Slf4j
+public class AlipayNotifyController {
+
+    @Value("${alipay.alipay_public_key}")
+    private String alipayPublicKey;
+
+    @Autowired
+    private AlipayNotifyMessageAbstract alipayNotifyMessageAbstract;
+
+    /**
+     * 支付结果回调
+     */
+    @PostMapping("/pay")
+    public String pay(HttpServletRequest request) {
+        // 1. 获取所有回调参数
+        Map<String, String> params = new HashMap<>();
+        Map<String, String[]> requestParams = request.getParameterMap();
+        for (String name : requestParams.keySet()) {
+            String[] values = requestParams.get(name);
+            String valueStr = String.join(",", values);
+            params.put(name, valueStr);
+        }
+
+        log.info("收到支付宝支付回调数据:{}", params);
+
+        // 2. SDK验签
+        boolean signVerified;
+        try {
+            signVerified = AlipaySignature.rsaCheckV1(params, alipayPublicKey, "UTF-8", "RSA2");
+        } catch (AlipayApiException e) {
+            log.error("支付宝回调验签异常", e);
+            return "failure";
+        }
+
+        if (!signVerified) {
+            log.error("支付宝回调验签失败 params:{}", params);
+            return "failure";
+        }
+
+        // 3. 验签通过，处理业务
+        try {
+            alipayNotifyMessageAbstract.payMessageHandle(params);
+        } catch (Exception e) {
+            log.error("支付宝回调业务处理异常", e);
+            return "failure";
+        }
+
+        return "success";
+    }
+}

common/src/main/java/org/jiayunet/alipay/AlipayNotifyMessageAbstract.java

@@ -0,0 +1,21 @@
+package org.jiayunet.alipay;
+
+import java.util.Map;
+
+/**
+ * 支付宝支付回调消息处理接口
+ * 使用前需要实现接口
+ *
+ * @author zk
+ */
+public interface AlipayNotifyMessageAbstract {
+
+    /**
+     * 支付结果回调消息处理
+     *
+     * @param params 回调参数（已验签）
+     */
+    default void payMessageHandle(Map<String, String> params) {
+        System.out.println("支付宝支付的支付结果回调消息未处理");
+    }
+}

common/src/main/java/org/jiayunet/alipay/AlipayPagePayAbility.java

@@ -0,0 +1,61 @@
+package org.jiayunet.alipay;
+
+import com.alipay.api.AlipayApiException;
+import com.alipay.api.AlipayClient;
+import com.alipay.api.domain.AlipayTradePagePayModel;
+import com.alipay.api.request.AlipayTradePagePayRequest;
+import com.alipay.api.response.AlipayTradePagePayResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.stereotype.Component;
+
+/**
+ * 支付宝电脑网站支付能力
+ *
+ * @author zk
+ */
+@ConditionalOnProperty(name = "alipay.status", havingValue = "open")
+@Component
+@Slf4j
+public class AlipayPagePayAbility {
+
+    @Autowired
+    private AlipayClient alipayClient;
+
+    @Value("${alipay.notify_domain}")
+    private String notifyDomain;
+
+    /**
+     * 电脑网站支付下单
+     *
+     * @param outTradeNo  商户订单号
+     * @param totalAmount 金额（元），如 "39.00"
+     * @param subject     订单标题
+     * @return HTML表单字符串，前端直接渲染（内嵌二维码）
+     */
+    public String prepay(String outTradeNo, String totalAmount, String subject) {
+        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
+        request.setNotifyUrl(notifyDomain + "/public/alipayNotify/pay");
+        log.info("以默认设置支付宝回调地址为:{}", request.getNotifyUrl());
+
+        AlipayTradePagePayModel model = new AlipayTradePagePayModel();
+        model.setOutTradeNo(outTradeNo);
+        model.setTotalAmount(totalAmount);
+        model.setSubject(subject);
+        model.setProductCode("FAST_INSTANT_TRADE_PAY");
+        model.setQrPayMode("4");
+        model.setQrcodeWidth(200L);
+
+        request.setBizModel(model);
+
+        try {
+            AlipayTradePagePayResponse response = alipayClient.pageExecute(request, "POST");
+            return response.getBody();
+        } catch (AlipayApiException e) {
+            log.error("支付宝下单异常 outTradeNo:{} error:{}", outTradeNo, e.getMessage());
+        }
+        throw new RuntimeException("支付宝下单异常");
+    }
+}