catch exception ex

One Package Com.test.Map2Cache; public class Cache {Private String key;//Cache IDPrivate Object value;//Cache dataPrivate Long timeout;//Update timeprivate Boolean expired; Whether to terminatePublic Cache () {Super ();} Public Cache (String key,

usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Data.SQLite;usingSystem.Data.Common;usingSystem.IO;namespacesqlitedemo{ Public Partial

C # asynchronous Socket (BeginXXXX) server code, Preface: 1. A recent maintenance company's old project is Socket communication, which is mainly used to receive captured images sent by IPC (client). During this period, communication should be

ExtJsGridPanel shows code for adding, deleting, and modifying results. For more information, see. 1. First, let's take a look: 2. ext code The Code is as follows: /// Ext. namespace ('xqh. ExtJs. framework ');XQH. ExtJs. Frame. RoleManage =

  Method 1: generate a file based on the template and keep it in the html folder. Train of Thought Analysis: 1. Write a custom HTM template with $ value $ to replace it. Include 2. In the ASPX of the generated page, read the HTM template with

C # Network WinForm (III.) One, TCP/IP hierarchy model Application Layer (Application): The application layer is a very broad concept, there are some basic same system-level TCP/IP applications and application protocols, there are many

Tcp/ip:transmission Control protocol/internet Protocol, TCP/IP protocol, also known as Network Communication protocol. Simply put: TCP controls the transmission of data, is responsible for the discovery of transmission problems, once a problem is

Written in the front: reprint please indicate the sourceDirectory pinned: About Project--------------------WCF+EF+WPF layered framework based on DDD Domain driven design (1) Architecture--------------------WCF+EF+WPF Layered framework

In general, we use the try/catch/finally statement block to catch exceptions, as we say here. What is the difference between using throw and throw ex when throwing an exception? Assume that several methods are called as follows: → Call the Method1

Hibernate inherited link ing method (2)-a table for each subclass TPS: "One Table Per sub-class (Table Per Subclass )":The parent class is a table, and each sub-class is a table. The parent class Table stores public information. The sub-class table

C # base class implementation for reading XML files, At the beginning of the new unit, I learned their source code. The XML code for reading and writing system configuration files in the Code is relatively old and written directly in a system

C # Use Webservices to call WebServices for addition, deletion, modification, and query, The trainee tutor asked for a project to use Winform to call WebServices to implement the add, delete, modify, and query functions. Write down this blog as a

In Oracle, fields of the LOB (LargeObject) type are more and more used. This type of field has a large capacity (up to 4 GB of data), and a table can have multiple fields of this type, which is flexible, applicable to business areas with a large

Windows Services are familiar to everyone. The concept of Windows Service Group does not seem to have such a statement in MS. As a software developer, our machines are equipped with various development tools along with various related

Throw new exception I have seen some people use throw new to participate in business logic in simple functions. For example, the following code: Catch (exception ex){String error = ex. message;} Public object dosomething (string username){Try{If (

First, testing Windows servicesIn order for the Windows Service program to function properly, we need to create a program entry point for it, like creating a generic application. Like other applications, Windows services do this in the main ()

This article provides a C # implementation of serial communication instances, personally written, pro-Test available!Development environment: Vs2008+.net FrameWork3.5 (actually 2.0 should also be possible)The first stepCreate a WinForm form and pull

Looking for someone else's article, address http://www.cnblogs.com/mingmingruyuedlut/archive/2011/01/27/1946239.html　　LINQ to XML provides an efficient way to create XML elements, called function constructs. A function construct is the ability to

Category: C #, Android, VS2015;Date Created: 2016-03-13 I. INTRODUCTIONUse the Mediarecorder class provided with Android to record audio directly.1. Permission RequirementsThe following permissions are required to record audio and video:2. Basic

Enter Http://localhost:8080/myWebSite/wel directly in the address barWill find the page can also jump, but the user name and password are empty, this is not possible, because there is no verified illegal loginWelcome,hello,nullpassword=nullUse the