证书类异常捕获修改

src/main/java/com/nis/web/controller/configuration/proxy/PxyObjKeyringController.java

@@ -122,7 +122,7 @@ public class PxyObjKeyringController extends BaseController {
 			logger.error("证书文件校验失败", e);
 			if (e instanceof MaatConvertException) {
 				addMessage(redirectAttributes, "error", "request_service_failed");
-			} else if (e instanceof MaatConvertException) {
+			} else if (e instanceof MultiPartNewException) {
 				addMessage(redirectAttributes, "error", e.getMessage());
 			} else {
 				addMessage(redirectAttributes, "error", "save_failed");