将所有的分页查询，查询出0条，也是查询成功

@@ -47,7 +47,7 @@ public class BusExchangeController {
         BusExchange busExchange = BusExchange.builder().exchangeName(exchangeName).virtualHostId(virtualHostId).build();
         // 分页查询
         PageInfo pageInfo = busExchangeService.selectBusExchangeList(busExchange, pageNum, pageSize);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询MQ交换机列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询MQ交换机列表,失败!");
     }

@@ -55,7 +55,7 @@ public class BusQueueController {
                 .build();
         // 分页查询
         PageInfo pageInfo = busQueueService.selectBusQueueList(busQueue, pageNum, pageSize);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询-消息队列-列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询-消息队列-列表,失败!");
     }

@@ -46,7 +46,7 @@ public class BusServerController {
         BusServer busServer = BusServer.builder().serverName(serverName).build();
         // 分页查询
         PageInfo pageInfo = busServerService.selectBusServerList(busServer, pageNum, pageSize);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询MQ服务器列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询MQ服务器列表,失败!");
     }

@@ -47,7 +47,7 @@ public class RoutingKeyController {
         RoutingKey routingKey = RoutingKey.builder().routingKeyName(routingKeyName).exchangeId(exchangeId).build();
         // 分页查询
         PageInfo pageInfo = routingKeyService.selectRoutingKeyList(routingKey, pageNum, pageSize);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询路由键列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询路由键列表,失败!");
     }

@@ -62,7 +62,7 @@ public class UserMessageBindingController {
                 .routingKeyName(routingKeyName)
                 .build();
         PageInfo pageInfo = userMessageBindingService.selectUserMessageBindingList(userMessageBinding, pageNum, pageSize);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询-账户消息绑定配置列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询-账户消息绑定配置列表,失败!");
     }

@@ -49,7 +49,7 @@ public class VirtualHostController {
         VirtualHost virtualHost = VirtualHost.builder().virtualHostName(virtualHostName).serverId(serverId).build();
         // 分页查询
         PageInfo pageInfo = virtualHostService.selectVirtualHostList(virtualHost, pageNum, pageSize);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询虚拟主机列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询虚拟主机列表,失败!");
     }

@@ -106,7 +106,7 @@ public class ElasticSearchInfoServiceImpl implements ElasticSearchInfoService {
         PageHelper.startPage(pageNum, pageSize);
         List<ElasticSearchInfo> elasticSearchInfos = elasticSearchInfoMapper.selectListByPage(elasticSearchInfo);
         PageInfo<ElasticSearchInfo> pageInfo = new PageInfo<>(elasticSearchInfos);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询ES服务器列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询ES服务器列表,失败!");
     }

@@ -403,7 +403,7 @@ public class UserInfoServiceImpl implements UserInfoService {
         PageHelper.startPage(pageNum, pageSize);
         List<UserInfo> userInfoList = userInfoMapper.selectUserInfoList(userInfo);
         PageInfo<UserInfo> pageInfo = new PageInfo<>(userInfoList);
-        return pageInfo.getTotal() > 0
+        return pageInfo.getTotal() >= 0
                 ? new ResultJson<>("200", "查询用户信息列表,成功!", pageInfo)
                 : new ResultJson<>("500", "查询用户信息列表,失败!");
     }

@@ -85,7 +85,7 @@ public class ExchangeFactory {
 
         Integer total = list.size();
         List<ViewExchangeInfo> resultList = subAndSortList(pageNum, pageSize, list);
-        return resultList.size() > 0
+        return resultList.size() >= 0
                 ? new ResultJson<>("200", "查询交换机监控，成功！", resultList, total)
                 : new ResultJson<>("500", "查询交换机监控，失败！");
     }

@@ -86,7 +86,7 @@ public class ViewQueueFactory {
 
         // 达到分页与排序效果
         List<ViewQueueInfo> resultList = subAndSortList(pageNum, pageSize, list);
-        return resultList.size() > 0
+        return resultList.size() >= 0
                 ? new ResultJson<>("200", "查询队列监控，成功！", resultList, total)
                 : new ResultJson<>("500", "查询队列监控，失败！");
     }