将max_allow_packet参数提取到配置文件中，不用每次从数据库中读取

src/main/java/com/nis/web/service/configuration/AppCfgService.java

@@ -352,7 +352,7 @@ public class AppCfgService extends BaseService {
 			specificServiceCfgDao.update(specificServiceCfg);
 		}
 		Integer compileId = configGroupInfo.getCompileId();
-		Varibles maxPacket=asnIpCfgDao.getVaribles("max_allowed_packet");
+//		Varibles maxPacket=asnIpCfgDao.getVaribles("max_allowed_packet");
 		List<AppIpCfg> tempList=Lists.newArrayList();
 		int len=0;
 		for(BaseIpCfg cfg:cfgs) {
@@ -360,7 +360,7 @@ public class AppCfgService extends BaseService {
 			BeanUtils.copyProperties(cfg, entity);
 			entity.setCompileId(compileId);
 			int tempLen=entity.toString().getBytes(Charset.forName("UTF-8")).length;
-			if((len+tempLen)<maxPacket.getValue().longValue()) {
+			if((len+tempLen)<Constants.MAX_ALLOWED_PACKET) {
 				tempList.add(entity);
 				len+=tempLen;
 			}else {