catch exception ex

Digital envelope encryption technology (algorithms combined with RSA and DES) This algorithm combines the advantages of DES and RSA. Principle: !. The sender uses the des key to encrypt important data. 2. the sender uses the RSA public key to

Using System;Using System. Drawing;Using System. Collections;Using System. ComponentModel;Using System. Windows. Forms;Using System. Data;Using System. Threading;Using System. Net. Sockets;Using System. Net;Namespace Chat_Server{////// Summary of

Using system; Using system. Data; Using system. configuration; Using system. Web; Using system. Web. Security; Using system. Web. UI; Using system. Web. UI. webcontrols; Using system. Web. UI. webcontrols. webparts; Using system. Web. UI.

Using the classes provided by. net, such as drawing. bitmap and drawing. bitmap, you can easily process images. This includes watermarking, enlarging, downgrading, and other operations. Public partial class webform4: system. Web. UI. Page{//

Using System; Using System. Data; Using System. text; Using Oracle. dataaccess. client; Using Oracle. dataaccess. types; Namespace Sample33{ // Demonstrate how to obtain oracleclob data through parameters of the stored

Introduction: In the actual project encountered some of the problem of XML operations, was forced to the end of the road to the end of the decision to study XML. This article first introduces the basic operation of XML, and then writes a frequently

If you're not sure how to put dspframer.ocx on a form, look at an article detailing how it's placed on a form.Links: http://www.cnblogs.com/pingming/p/4182045.htmlFirst step to create a new formCreate a new form, place a panel container control, and

Use ServletContext to implement web page counters (1) Train of Thought Analysis: Use ServletContext and notepad to write the login times in the txt file. First, use the Servlet init () when the function is initialized, open the txt counter file and

First build two Java Project project, a write client, a write server side program, the program roughly for a server side set up listening to a port, more than one client can connect, the implementation of the following:1. Server-side

1. First import Bzip2.jar in the project; (Download address: http://download.csdn.net/detail/majian_1987/5997697) 2. Download Jzlib source code Zip package, extract, and then copy all com.jcraft.jzlib.* Java files to the project (even with a Java

The complete code for the C # XML file Operation class Xmlhelper class: Using System; Using System.Collections; Using System.Xml; Namespace Com.xmldal { public class Xmlhelper { #region Public variables XmlDocument xmldoc; XmlNode

Import java.util.*; /** * Provides a container for holding parameters that provide parameter reading capability for methods with multiple parameters, multiple optional parameters, and variable parameters. * Using classes such as map directly is not

The previous article said that the operation of SQL Server version, because now the company needs to use Oracle data, not before, through the online check to add some of their own actual verification affixed, mainly to facilitate their own view of

One: Via System.Data.OracleClient (need to install Oracle client and configure Tnsnames.ora)1. Add a namespace System.Data.OracleClient reference2. Using System.Data.OracleClient;3.String connstring = "User Id=ifsapp; Password=ifsapp;data

Using Servlet, JSP and JDBC to implement database manipulation--jdbc connect MySQL instance: Put the MySQL database-driven package (my driver Mysql-connector-java-5.1.34-bin.jar, which needs to be downloaded separately) in the Web-inf->lib

Too yards and yards, always more feel ~ ~ ~I've been playing for one hours.But looking at one line of the line,Still have a sense of accomplishment ~ ~:)Verysimplechatserver.javaImportJava.io.*;Importjava.net.*;ImportJava.util.*; Public

using System;Using System.Collections.Generic;Using System.Text;Using System.IO;Using System.Drawing;Using System.Drawing.Imaging;Using System.Drawing.Drawing2D; Namespace Pub.class {Thumbnail processing classpublic class Cutimage{#region

Today began to work on the C # launch camera, previously done with C + + call OpenCV Library to start the camera, C # theoretically can also. But read this blog notes, immediately brain hole open, the original can and the camera to deal with the

Reprint Address: https://www.cnblogs.com/dongzhongwei/p/5964758.html LZ: Ding Dong ^v^ /*** * Compressed gzip * * @param data * @return/public static byte[] GZip (byte[] data) {byte[] b = null; try {bytearrayoutputstream bos = new

One: Via System.Data.OracleClient (need to install Oracle client and configure Tnsnames.ora)1. Add a namespace System.Data.OracleClient reference2. Using System.Data.OracleClient;3.String connstring = "User Id=ifsapp; Password=ifsapp;data