catch exception ex

Using system; Using system. Collections. Generic; Using system. Windows. forms; Using system. Data. sqlclient; Using system. Data; Using system. serviceprocess; Namespace adminzjc. databasecontrol{/// /// Database Operation Control/// Public class

Recently, due to busy work, blog updates are slow and I am sorry to my friends in the garden. So I wrote a comprehensive application of the Spring. NET Architecture over the weekend. I hope this practical architecture will be welcomed by everyone. 　　

1. Click the address above to open the download page. 2. Click "normal download"-Wait for 30 seconds-click "Download"-save The program runs as follows: Use 7z. dll to decompress the file Select where to decompress Decompress the package. Add the

In doing some of the planning tasks will inevitably use the Windows Service Service program, and this is no interface, each start, restart, shutdown requires the service interface to find services to operate, for ordinary people is very troublesome,

Redis is a widely used Key/value memory database and one of the fastest key-value distributed caches.Redis Official website: http://redis.io/Redis Quick Start Tutorial: http://www.yiibai.com/redis/redis_quick_guide.htmlDecompression version: Https://

Purpose of this article: to broadcast messages to the remoting online client.The main techniques used: Async, Callback, broadcast.Implementation process:Defining a remote

Using system; using system. collections. generic; using system. text; using system. security. accesscontrol; using system. io; using system. collections; namespace customization. service {public class foldersecurity {public static bool setfolderacl (

Extracts JDBC tool classes, adds, deletes, modifies, and queries, and extracts jdbc tool classes. Extraction Tool: Package demo;/** tool class */import java. SQL. connection; import java. SQL. driverManager; import java. SQL. preparedStatement;

Some time ago, the company was writing an interface to invoke the FTP service provided by the three-party developer for downloading files. Some code backups have been made to this.Here is the complete test code to be pasted up to share with

public static string doget (string url, string param) {string result = ""; BufferedReader in = null; try {String urlnamestring = URL + "?" + param; URL realurl = new URL (urlnamestring); URLConnection

How does Android Close the Alertdialog.builder dialog box? The Alertdialog.builder dialog box does not have a method like finish () or dismiss (). But its parent class Alertdialog has a dismiss method, and Alertdialog.builder will get a Alertdialog

Multiple file servers can be read and written, SMB protocol is used here Page static, you can use Freemarker Open source framework If a large number of read and write requests are taken into account, the request is distributed or the scheduling

Programming | example The following example program implements simple socket communication and can open multiple clients. The native test passed and no online tests were made. Server: Using System.Net; Using System.Net.Sockets; Using

web| Client | online Objective:For project reasons, the client to be implemented is too far away from the author (Itbaby) to consider providing an online upgrade of the software. How do we do that? Let's talk about the idea first. Ideas:First

Use Model1 (Jsp+javabean) to implement the steps: DBHelper is a linked object that creates a database, manipulating the database JDBC Create an entity class: Product class Create a business logic class (DAO) Create a page layer (

Using System;Using System.Collections;Using System.Collections.Generic;Using System.Data;Using System.Data.SqlClient;Using System.Linq;Using System.Text;Using System.Threading.Tasks;Using Log4net;Using System.Configuration;Namespace Ch_common{public

C # Operating SQL Server is not much different from manipulating other data, but there are some details to note.Do not select the default instance when installing SQL Server, if it is necessary to change the settings, there are remote connections to

Quote Please specify http://www.cnblogs.com/13590/archive/2013/03/14/2958735.htmlAbstract: query is the core of database SQL language, this paper introduces simple query, conditional query, dynamic query and multi-table query of database by

Import Java.io.InputStream;Import java.sql.*;Import javax.sql.*;Import javax.naming.*; Import Com.vfrankmusic.sysinfo.SysInfo; /*** Title:MusicWeb* description:musicweb site* copyright:copyright (c) 2004* Company:VFrankSoft* @author Ouxiaoron*

Getting started with the classic notes of database1. Get Data6. 1 Creating a Command objectUsing System;Using System.Data;Using System.Data.SqlClient; Class Sqlserverprovider{static void Main (string[] args){string constr = @