net err connection timed out

protected void testconnection () 2 { 3 string connstring = configurationmanager. connectionstrings ["mydemo"]. connectionstring; 4 sqlconnection con = new sqlconnection (connstring ); 5 con. statisticsenabled = true; 6 7 try 8 { 9 con. open (); 10 This. lblinfo. Text = "11 This. lblinfo. Text + = "12} 13 catch (exception ERR) 14 { 15 this. lblinfo. Text = "error reading the database." + err. message; 16} 1

Objective The browser accesses the Web page through the HTTP protocol, the browser sends a request, and the server returns a result. The server is a passive receive request, if you want to reverse, the server actively send information to the browser do? There are a number of workarounds, such as round robin (browser timed to the server asking for new data), WebSocket (HTML 5) ... And SignalR is the combination of these technologies, it automatically

Because the test uses small data volumes, Program It runs normally, but when I got to the client and met more than 100 pieces of data, I was prompted that the connection had timed out, which left me puzzled. I don't know how to track it for a while. Finally, I found a method to track the status of the data connection pool: Http://www.yesky.com/SoftChannel/723423

The following in the call to the interface of the currency, will often get stuck, set the connection timeout will not throw an exception, the code is as follows (the default connection timeout is nil, refer to: https://github.com/ruby/ruby/pull/269):require ‘net/http‘require ‘json‘require ‘byebug‘uri = URI(‘https://www.binance.com/api/v1/ticker/24hr?symbol=EOSBTC

1. Create a new ASP. NET site template; Double-click the Web. config file to add a Sever is the name of the server; database is the name; user ID is the login username; password is the login password.After adding the whole code is as follows:2. Double-click the Default.aspx file to drag a Label control from the Toolbox into Design view.Double-click Default.aspx.cs under Solution Explorer to write the following code:Using system;using system.collection

I am using axis to call. NET Web service, run under Window No problem, deploy the project to Linux, found that the web Service connection timed out, Baidu, found that because Linux can not directly run. NET, need to configure the environment.I'm a little white! ORZ ...Workaround:In the terminal login root, successively

Web.configThe using System.Configuration is then added to the namespace; private string connectionString = configurationsettings.appsettings["connectionString"]. ToString (); private string connectionString = configurationmanager.appsettings["connectionString"]. ToString (); protected void Page_Load (object sender, EventArgs e) {if (!this. IsPostBack) {filllist (); }} private void Filllist () {String selectsql = "SELECT * from Stu"; SqlConnection con = new SqlConnectio