web applications

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Master-slave database schema

In Web applications, the database performance bottlenecks in system performance, leading to one of the most important reason. Especially in large-scale system, the database cluster has become one of the necessary configuration. The benefits of cluste

SSH configure log4j framework of the method (transfer)

SSH configure log4j framework of the method / * August 29, 2011 09:52:54 by Rush * / SSH framework convenience of using log4j 1 record level of dynamic change and strategies that modify log4j.properties, do not need to restart your Web application, w

How to Export Data to Excel from an ASP.NET Application + Avoid the File Format

Original link: http://blogs.msdn.com/b/erikaehrli/archive/2009/01/30/how-to-export-data-to-excel-from-an-asp-net-application-avoid-the -file-format-differ-prompt.aspx 30 Jan 2009 5:25 PM This is a common task for ASP.NET developers. You have a Web ap

Freemarker + XML export Word

Originally from http://blog.csdn.net/xiexl/article/details/6747767 ; In Web applications, sometimes need to follow a fixed template to export data to Word, such as the approval process alone, in the process after processing is complete the process in

multi-instance configuration tomcat

Original Address: http://azeditech.com/tomcat/multiple-tomcat-instances.html Running multiple Tomcat instances on one server Here's a brief step by step guide to running more than one instance of Tomcat on a single machine. Step 1: Install the To

(Reproduced) tomcat java project in several ways to deploy

Deployed in Tomcat Java Web applications in two ways: static and dynamic deployment of the deployment. Below $ CATALINA_HOME refers to the Tomcat root directory. First, the static deployment of static deployment means that we start the server before

MySQL Performance Tuning must 25 (reproduced)

Original Address: http://www.iteye.com/topic/1114134 Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA

MySQL Performance Tuning must 25 (rpm)

Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA need to worry about things, and this is our programm

web application webapp. root reuse solutions to problems

Inside the same tomcat server deploy two JavaEE projects are done using the log4j logging. Web.xml inside of the monitor and the log information. Error when the service starts. Then add the following code in web.xml: <display-name>myapp001</

tcpdf display Chinese characters

The original technology from the zero Recently made the content output into pdf documents in a project, find a lot of class, php_pdflib, fpdf, HTML_topdf, etc., but eventually found this easy to use, study the processing of Chinese characters to writ

MySQL Performance Tuning must 25

Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA need to worry about things, and this is our programm

Import https certificate [Reserved]

[Transfer] Certificate import https http://www.blogjava.net/etlan/archive/2006/12/22/55767.html Abstract JSSE SSL and TLS is a pure Java implementation, through JSSE can be easily programmed for HTTPS access to the site. However, if the site certific

Disk performance impact on Web application (transfer)

There are many web applications are based on LAMP architecture (M is MySQL), database read access in order to ease the pressure, usually using the caching mechanism, which is a database query fails after a certain period of repeated use of the result

5 Ways to Boost MySQL Scalability

Transfer: http://www.iheavy.com/2011/07/28/5-ways-to-boost-mysql-scalability/ There are a lot of scalability challenges we see with clients over and over. The list could easily include 20, 50 or even 100 items, but we shortened it down to the biggest

Spring Web application architecture of Web ApplicationContext

Spring web application for the XmlWebApplicationContext, its main function is to adapt to Web applications, such as an international resource loading, allocation of resources to read, events and so on. Still really in its internal includes a core Bea

[Reserved] crazy big collection of Web application open source project

<p mce_style="text-align: left; "> switched http://coolshell.cn/articles/5132.html <br> <br> <br> The following is a list of open-source Web applications . Nothing to say, crazy. In particular, it is a bunch of Web 2.0. I

struts2 configuration in web.xml (rpm)

Struts 2 is an overview of the basic configuration in front of the basic content of Struts 2 framework, but these basic elements must be built on the Struts 2 configuration file based on these configuration files configuration information is the core of t

Build role-based access control system

WEB application system security is always the top priority must face is the most troublesome thing, in fact, only security system on two issues: authentication and authorization. Website system to do before, security detection logic in the code on th

You first need to do is to begin to do

This article is from The first step is to start this article was translated from. Many people have asked me, "I want to do web design, how to start?" Or "I want to develop web applications, what technologies need to learn?", Of co

Web application using JMeter to do the pressure test

Reference Note: the original from http://www.cnblogs.com/super119/archive/2011/01/13/1935017.html , for the convenience of my reading, the text format is slightly adjusted. And HttpUnit different, JMeter is doing stress testing, and JMeter can not on

MySQL Performance Optimization Twenty hands-on experience

Taken from the network; http://www.xici.net/d124007326.htm Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not ju

rails3 project analysis of 4 - asynchronous and a timer

Previous: rails3 project analysis of the 3 - redis In the current web applications, especially interactive increasingly popular concept today, in order to speed up site responsiveness and improve the user experience, some operations can not wait unti

HTTP Status 404 (The requested resource is not available) of several solutions

Reason: servlet is not configured correctly, check to confirm the correct web.xml, and their request path is correct In IE prompt "404" error in the following three conditions 1. Not to deploy Web applications 2. URL input error troubleshoo

Simplified Chinese Windows Server 2003 Enterprise Edition product key cd key

Simplified Chinese Windows Server 2003 Enterprise Edition, truly free activation. CD-KEY: JB88F-WT2Q3-DPXTT-Y8GHG-7YYQY Installation serial number: JCGMJ-TC669-KCBG7-HB8X2-FXG7M Use this serial number Windows Server 2003 can be updated online! If you

Java or the Web to solve the problem all paths

Java using the path, divided into two types: absolute and relative paths. After all, Java is essentially only used absolute path to find the resources. The relative path to find resources for all methods, all but a few convenience methods. But the AP

Acegi + Spring + Hibernate + Struts2 role access control system built

WEB application system security is always the top priority must face is the most troublesome thing, in fact, only security system on two issues: authentication and authorization to do before the site system, safety inspection logic required security contr

struts2 a form to handle multiple requests

In many Web applications, in order to complete different tasks, an HTML form tag may be two or more of the submit button, as shown in the following code: <!--[ If! SupportLineBreakNewLine] -> <html action="" method="post">

Detailed Struts2 configuration file - struts. Properties

This file is the struts2 framework of the global property file is automatically loaded file. This file contains a series of key-value pairs. This file can be configured entirely in struts.xml file, use the constant elements. Here is the file in some commo

Struts.xml resolve common configuration

This paper will detail the common configuration struts.xml file and precautions. 1. <include> Label re-use the configuration file In Struts2 provides a default struts.xml file, but if the package, action, interceptors and other configuration is

mysql5.1 Chinese garbled

Recent want to use SpringSide developing Web applications, I use the latest version 3.2.2. It should be said, to start SS3, is seen a series of articles written by Momo beach, particularly in SS3 series based. Quguan network download SS3.2.2, complet

Classic software testing Web Testing Summary

Link is a Web application as a major feature, which is guiding the user to switch between pages and to pages that do not know the address of the principal means. Link test can be divided into three areas. First, test all the links are instructed, as

mysql tuning _20 turn

http://coolshell.cn/articles/1846.html Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA need to worry

Hudson + Maven + SVN quickly build a continuous integration environment

hudson is an extensible continuous integration engine, Hudson is very easy to install and configure, easy to use, here a few minutes to see how we quickly set up a continuous integration environment for it. Suppose we have two maven projects: entitie

Database connection pool in a web development application

Today at work I met a few people ask the database connection pool in the use of a web application. So to summarize published an article on the database connection pool to use in web development. Hope for some help. OK, get down to business: The princ

MySQL Performance Optimization of 20 + for the best experience of [turn]

Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA need to worry about things, and this is our programm

MongoDB Introduction and installation (turn)

Original Address: http://database.51cto.com/art/201103/247882.htm This is a series of learning notes MongoDB first, focuses on what non-relational database MongoDB, how to download, where to download, how should the proper installation and other issues. I

Today saw an open source web applications, nearly 100 table, looking back with power designer inverse relationship between tables, the results came out, shocked ...

100 tables are not actually a relationship that is no foreign key? Accordingly, other than the link between the application form also spider web spider web, I ask, so that two kinds of table design so what are the pros and cons?

NoSQL - CouchDB entry

What is NoSQL NoSQL (the abbreviation is not only SQL, but also saying that is non-relational, ie non-relational database) is not using a traditional relational database model, but the use of such key-value store, document type, column storage, map databa

ORACLE. SQLSERVER.MYSQL difference with DB2

ORACLE, SQLSERVER, MYSQL and DB2 difference: - Platform of: Oracle, MYSQL and DB2 can be run on all major platforms; SQL Server can only run under Windows; - Security: Oracle's highest security certification level of ISO certification standards,

(Turn) the application message queue and message distributed transaction status table to eliminate

Since a huge amount of data, most Web applications require deployment of a number of database instances. Thus, some users may need to modify the operation of multiple database instances in the data. The traditional solution is to use distributed transacti

MySQL database easily grasp the relevant principles of the lock mechanism

"MySQL database easily grasp the relevant principles of the lock mechanism." MySQL 5.1 support for MyISAM and MEMORY tables for table-level locking for BDB tables for page-level locking for InnoDB tables for row-level locking. In many cases

Four ranking functions in SQL Server2005

Ranking function is SQL Server2005 new added features. In SQL Server2005 in the following four ranking functions: 1. Row_number 2. Rank 3. Dense_rank 4. Ntile The following describes what the function of the four ranking functions and usage. Before i

Agile C project - the first a planning meeting

This series will be recorded in the introduction of agile project process and related to some thinking, welcome to communicate. Running account February 16, 2011, with project managers and developers have been two previous head of the exchange. Febru

Tomcat deployment related projects

A: Tomcat5.5 Detailed source web project deployment Tomcat.5.5.16 install web project code execution is mainly HostConfig class, which deployApps () function to perform the deployment of web applications; protected void deployApps () { File appBase =

Test database articles

Walnut blog original, all the articles in this blog all the original, reprint this article please specify from walnut blog , thank you! 1. Problem scenarios a. A user opens the application's interface, see a record in the database b. User B opens the

[Transfer] MySQL performance optimization experience the best of 20 +

Transfer: http://coolshell.cn/articles/1846.html Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA nee

Redis tutorial, April 2010

The article is too long, the following is one of a small part of Turn: http://simonwillison.net/static/2010/redis-tutorial/ These slides and Notes were originally written to accompany a three hour tutorial I gave at the Redis NoSQL Europe conference on th

MySQL Performance Tuning Best Practices 21

Today, the operation of the database application performance is increasingly becoming the bottleneck, and this is particularly evident for Web applications. On database performance, this is not just DBA need to worry about things, and this is our programm

Using the Maven WAR plugin multi-overlap between the use of Web applications

I. Introduction Q Can the group of friends asked mergers between multiple Web application packaged as a WAR to publish, in reality, there are also cases, such as a certain large-scale e-commerce site includes flights, hotels, travel, VIP customers and oth

Tomcat6 using Maven Cargo Plugin Manager deployment

I. Introduction Friends, maybe you have some time using Maven, Maven and beautiful you have benefited from management, but often because of the need to build a webapp to Tomcat to worry about manually released. Of course, you have thought through the scri
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