XML summary -- XML parsing

Article directory XML analysis 1, XML parsing 1. DOM parsing 2. SAX parsing 3. Dom4j parsing xml XML analysis 1, XML parsing There are two ways to parse XML: dom and sax dom:(Document Object Model), a way to process XML sax:(Simple API for XML) is not an official standard, but it is a ...

Posted on Thu, 16 Jan 2020 08:03:00 -0500 by stovellp

SqlServer common commands

Article directory 1, SQL Basics Two, enhance Three, function Four, actual combat 1.SELECT 2.Update 3. table / field 4. Index (add, delete, modify and check) Like ๐Ÿ‘ pay attention โค don't get lost 1, SQL Basics 1.query SELECT Column name FROM Table name 2.Duplicate removal SELECT DISTINCT Colum ...

Posted on Thu, 16 Jan 2020 07:32:51 -0500 by kaumilpatel

Android knowledge system summary 2020 BroadcastReceiver

Junior to intermediate 1. What is broadcasting & what problems to solve 1.1 definition โ€ƒโ€ƒ in Android, it is a mechanism widely used to transfer information between applications. In Android, we send broadcast content as an Intent, which can carry the data we want to send. 1.2 use scenarios of broadcasting โ€ƒโ€ƒ a. message c ...

Posted on Thu, 16 Jan 2020 02:54:32 -0500 by aliasneo86

R language Bioconductor dependency management & KEGG enrichment analysis & path map & pathview error reporting solution

win10-R language 3.6.2-Bioconductor dependency management & & KEGG enrichment analysis & & path map & & path view error reporting solution 1, Environmental preparation Download the installation package (64 bit) (if there is no turning over the wall, select a domestic source t ...

Posted on Thu, 16 Jan 2020 02:21:10 -0500 by bran

Filter&&Listener of JavaWeb

Filter: filter 1. Concept: * Filter in life: water purifier,Air purifier, bandit * web Filter in: when accessing the server's resources, the filter can intercept the request and complete some special functions. * Function of filter: * Generally used to complete general operations. For example: lo ...

Posted on Thu, 16 Jan 2020 02:12:26 -0500 by manamino

Integration of ssm framework (spring+ springMVC+MyBatis)

SSM framework integration 1. Construction environment 1.1 create data table The MySQL database is used to create a database named ssm and a table named account. CREATE DATABASE ssm; USE ssm; CREATE TABLE account( id INT PRIMARY KEY auto_increment, NAME VARCHAR(20), money DOUBLE ); 1.2 create ...

Posted on Wed, 15 Jan 2020 08:14:23 -0500 by maxsslade

Can layout be loaded asynchronously? A little experience from asynclayoutinflator

Catalog Preface For the two performance bottlenecks of layout loading, I / O operations are used to load XML into memory, parse it and create View through reflection. When the XML file is too large or the page file is too deep, the layout loading will be more time-consuming. We know that when the main thread does some time-consuming operatio ...

Posted on Wed, 15 Jan 2020 07:07:36 -0500 by kpulatsu

[spring] AOP learning notes

[spring] AOP learning notes I. Preface 1. Take a chestnut 2. Transaction control 2, Dynamic agent 1. JDK agent 2. CGLIB agent 3, Here comes the point 1. concept 2. Relevant terms 3. dependence 4. Steps of AOP configuration based on XML 5. Writing of pointcut expression 6. Five notification types ...

Posted on Wed, 15 Jan 2020 03:04:52 -0500 by bluejay002

New springboot + mybatis plus project

New springboot + mybatis plus project First, use idea to create a new SpringBoot [failed to transfer the pictures in the external chain. The source station may have anti-theft chain mechanism. It is recommended to save the pictures and upload them directly (img-4vpbYRCZ-1579060750966)(C:\Users\Leve ...

Posted on Wed, 15 Jan 2020 00:05:45 -0500 by squallm1

Design mode creation

The common types of creative design patterns are as follows: Singleton Simple factory Factory method Abstract factory Builder (Builder) Prototype 1. Singleton intention Ensure that a class has only one instance, and provide a global access point for that instance. Class diagram It is implemented with a private constructor, a ...

Posted on Tue, 14 Jan 2020 22:58:27 -0500 by msinternet