feat:签名

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

@@ -62,6 +62,8 @@ public class SignatureUtils {
                 .add(timeStamp)
                 .add(random)
                 .toString();
+
+        log.info("plainText:{}",plainText);
         // 签名算法
         Signature signature = Signature.getInstance("SHA256WithRSA");