connection

问题 I'm looking to make heavy consumption of a RESTful API from a ColdFusion application. I'm not a CF expert but I'm anticipating the repeated cfhttp calls will become a bottleneck as I believe that each results in a connection being established, request sent, response received and connection torn down. I'm curious - is there a way to maintain a connection pool that requests could be sent through to avoid the repeated establish/tear down? Does the ColdFusion server provide such a facility that I

问题 I'm just learning about connection pools, and I was wondering if there's ever any reason to set maxIdle > maxActive . This is my understanding: Idle connections are connections that have been created and are waiting to be used. It becomes an active connection once a client borrows it. minIdle determines the number of initial connections to create in a pool. When a client tries to use the pool, an idle connection is given. If there are no available idle connections, the pool will create one.

问题 I have developed an application that have a slider that showing some data from a SQL Database. I'm using Visual Studio 2010 and Microsoft SQL Server 2008. In fact i don't face any problem with my application when i deploy it an run it on my Personal Computer. The problem occurs when i try it on another machine, and the problem is that the application couldn't be connected the SQL database. I tried to figure out the reason of the problem, so i tried it after its deployment on two machines, one

问题 I am doing a small android application, which will show established WiFi connection is automatic or Manuel. Is it possible to take WiFi access point which is set by user in default "setting" application? Thanks, Vani 回答1: see this [ www.developer.android.com/reference/android/net/wifi/package-summary.html] or WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); if (wifiManager != null) { WifiInfo info = wifiManager.getConnectionInfo(); if (info != null) { String

问题 I have to setup two solr servers, so that if one of the servers goes offline, traffic can be switched to the other server at runtime. One way is to let Solr try to connect to the server and after it times out try connecting with the other server. Is there a better way of doing this? Using 'try..catch' method takes a long time, so if there isn't a better way then is there a faster way to use 'try..catch' method? Thanks 回答1: You might want to try using a regular HTTP load balancer for this,

问题 I have integrated Facebook into my Android application. It was worked fine before last week. Since a couple of days ago (before it was working fine) I now sometimes get an error when posting to wall page saying An error occured with holyplanets connect. Please try again later. Please help me to resolve this issue. Thanks in advance.. 回答1: Take a look at Facebook Dev Forum... seems to have solved for some people. 回答2: i ended up disabling facebook SSO (single sign-on), and it works correctly

问题 I'm getting this error when running an SSIS package through SQL Agent Failed to acquire connection "ORACLE ADO.NET". Connection may not be configured correctly or you may not have the right permissions on this connection. When I log on as the SQL Agent User and run the ssis package directly it is fine. When I then execute it through the SQL agent job, it fails. I've read around extensively on this topic, and it seems a lot of the advise concerns how you are logged in, configuring of proxy

问题 I am working on a project where I send supposedly press a button on a webpage and it then executes a command in java. What I'm looking for is something like this. Say if I pressed a button and then it sends a command to the minecraft server to reload plugins. How would I go achieving this? Thanks 回答1: When you have to comunicate between different applications you will problably need a bridge. In your case I'd suggest to use Minecraft's RCON service (must be enabled in the confingiration) or a

问题 I'm trying to create table (h2) with jdbcTemplate. Everything is ok when I execute different queries in UsersDAOImpl class, but when I try to create table first in Application class, the JdbcTemplate can't connect to the database. I read that I need to add dependency group spring-boot-starter-jdbc that will automatically generate dataSource to witch my JdbcTemplate should connect, but it seems that doesn't work. I think that I missed something but can't find what. Application class:

问题 In the WebSocket++ 0.3.x library, what determines the limit of how many WebSocket clients can have an active connection? Is it one connection per thread, or can one thread handle multiple WebSocket client connections? If it is the latter, roughly how many connections can one thread hold? Basically, I'm looking for a ballpark number of how many client connections WebSocket++ library can handle in a application with roughly 25 threads to spare. The library homepage is: http://www.zaphoyd.com