feat:钱包接口对接

coolstore-partner-common/src/main/java/com/cool/store/utils/RsaSignUtil.java

@@ -306,4 +306,42 @@ public class RsaSignUtil {
             return null;
         }
     }
+
+
+    /**
+     * 针对 /zxjp/open/v1/wallet/** 接口的专用验签方法
+     * @param params 包含签名参数的Map
+     * @param privateKeyPEM 用于生成签名的私钥
+     * @return 验签是否通过
+     */
+    public static boolean verifyWalletSign(Map<String, Object> params, String privateKeyPEM) {
+        try {
+            // 1. 获取请求中的签名
+            String requestSign = String.valueOf(params.get("sign"));
+            if (requestSign == null || requestSign.isEmpty()) {
+                log.warn("请求中缺少签名参数");
+                return false;
+            }
+
+            // 2. 移除签名参数，生成待签名字符串
+            Map<String, Object> paramsToSign = new HashMap<>(params);
+            paramsToSign.remove("sign");
+
+            // 3. 使用相同的私钥生成签名
+            String generatedSign = generateSign(paramsToSign, privateKeyPEM);
+
+            // 4. 对比签名
+            boolean isVerified = Objects.equals(requestSign, generatedSign);
+
+            if (!isVerified) {
+                log.warn("签名验证失败，请求签名: {}, 生成签名: {}", requestSign, generatedSign);
+            }
+
+            return isVerified;
+        } catch (Exception e) {
+            log.error("验签过程中发生异常", e);
+            return false;
+        }
+    }
+
 }