update

mec-thirdparty/src/main/java/com/ym/mec/thirdparty/lingxinpay/ContractSignService.java

@@ -21,7 +21,7 @@ public class ContractSignService {
 	private static final Logger logger = LoggerFactory.getLogger(ContractSignService.class);
 
 	@Value("${teacher.contract.publicKey:MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCYT5eCY6r8sGWgbiId/VqSZmS6XkBNGMkzUqTIkpkecOzsFBxFXTQmgDeR991YfgqmyOaHsJ/ons/H+e8l+RmHsOm4eErFU+9qXFq+k195YFV1vAR9O7MIG+FR5vmLDuhgimPsgqscWhUrGinc8RUpi5KwClgx7d+d8ZJ4GmkR0QIDAQAB}")
-	private static String publicKey;
+	private String publicKey;
 
 	private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");