修复domain white list修改失败的问题

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

@@ -104,7 +104,7 @@ public class DomainService extends CrudService<DomainDao,HttpUrlCfg> {
 			}
 			this.saveIpBatch(cfg.getAreaCfg());
 		}
-		if(cfg instanceof HttpUrlCfg){
+		if(cfg instanceof HttpUrlCfg && cfg.getCfgId() == null){
 			domainDao.insert((HttpUrlCfg)cfg);
 		}else{
 			stringCfgDao.update(cfg);

src/main/webapp/WEB-INF/views/cfg/maintenance/dnsResStrategy/form.jsp

@@ -52,7 +52,9 @@ $(function(){
 			}
 			if(flag){
 				var maxTtl=$("[name=maxTtl]").val();
+				maxTtl = parseInt(maxTtl);
 				var minTtl=$("[name=minTtl]").val();
+				minTtl = parseInt(minTtl);
 				if(minTtl>maxTtl){
 					message="<spring:message code='max_shouldnot_less_than_min'/>";
 					$("div[for=maxTtl]").html("<label for=\"maxTtl\" class=\"error\" id=\"maxTtl-error\">"+message+"</label>");