exception ex

method One: In Oracle, fields for LOB (Large object, large objects) types are now used more and more. Because of this type of field, large capacity (up to 4GB of data), and a table can have more than one of these types of fields, is flexible,

Servlet Sixth speak A Explanation and use of ServletContextWhat is Servletcontex.It can be imagined as a common space that can be accessed by all customers How to use ServletContext.1. Get ServletContextThis.getservletcontext ();2. It can be seen

The most complete SPRINGMVC study notes in historyThis article address: http://blog.csdn.net/shanglianlm/article/details/50255609 First, SPRINGMVC Foundation, create a HelloWorld program 1. First, import the jar package that SPRINGMVC needs.2. Add

server| Backup | data | database Method One (does not use SQLDMO): ///Backup methods///SqlConnection conn = new SqlConnection ("server=.;D Atabase=master; User Id=sa; Password=sa; "); SqlCommand CMDBK = new SqlCommand ();Cmdbk.commandtype =

asp.net| Access | encapsulation | data | database using System; Using System.Configuration; Using System.Data; Using System.Data.SqlClient; Using System.Collections; Namespace MyCorporation.DepartMent.DataBase { Common database Classes public

server|web| Data | Database one. This is for C # connection WinForm Note points: (1) The namespace of this class must be referenced when called (2) The namespaces referenced in the class Using System; Using System.Data; Using System.Data.SqlClient; (

visual| Programming | Network NOTE: NOT original! The previous article, Visual C #. NET Network program development socket, said: Support for HTTP, TCP and UDP classes composed of TCP/IP three-tier model (Request response Layer, application

I. Introduction of interceptors Spring MVC's processor interceptors are similar to filter filters in servlet development for preprocessing and post-processing of processors. Common Application Scenarios 1, log records: Log the request information

Reprint please specify the original address: http://www.cnblogs.com/ygj0930/p/5847020.htmlLearning Java development, a must grasp the knowledge point, is the database operation. When a program needs to reach a certain level of data, it cannot simply

The picture is stored in the database in the varchar (max) data format, and each photo corresponds to a test serial number that needs to be removed and displayed to the page.First, the BLLPublictbyte[] Getphotodata (stringJclsh) { byte[]

Original: Using. NET to back up and restore a databaseCsdn Netizen's question http://community.csdn.net/Expert/TopicView3.asp?id=4929678C # Two methods of implementing SQLSERVER2000 database backup and restore: Method One (do not use

How To reference Data.OracleClient.dllSince from. NET 4.0, Microsoft has removed the OracleClient.dll from the framework, so to use, it needs to be in VS2010 to change the project's. NET Framework from. NET 4.0 to 3.5, solution-by-reference, add

WEB Service for WEB Service & WCF & WebApi authentication, WEBService In this era of WEB APIs, the WEB Service technology seems outdated. outdated technologies do not mean that they are useless, and they can still be used in some places, the reason

Implementation Code for generating static Web pages in Asp.net, and static Web pages in asp.net Currently, all programs need to convert dynamic pages into static pages. Today, we will teach you how to generate static pages in ASP. NET. Using

Cookie and session are basically used and encapsulated, cookiesession Cookie: It is a short text message that is transmitted between the browser and the server when a user requests a page. Each time a user accesses a website, the cookie can contain

Knowledge diary 1 During this time, I made a small monitoring tool that involves txt operations and summarized the operations to prevent myself from forgetting them. Fragmented knowledge points: 1. Time Conversion // Time conversion string xx = "10:0

The difference between throwing an exception using throw and throw ex in C,   Generally, we use try/catch/finally statement blocks to catch exceptions, as we mentioned here. What is the difference between throw and throw ex when an exception is

Implement the ability to send messages in ASP., including sending nearby, HTML pages, pictures, and multiple sending objects.In the actual use of the queue, Threading technology, the purpose is to prevent the process of sending mail to hinder the

Ing of SQL CLOB in JavaTM programming language. SQLCLOB is a built-in type that stores CharacterLargeObject as a column in a row of a database table. By default, the driver uses SQLlocator (CLOB) to implement the Clob object, which means that the

Type reflection, late binding, and feature-based programming, reflecting late binding features1. Reflection Why pay attention to metadata? ------ Reflection Service In .net, all types of lists contained in a specified .dllor .exe assembly can be