Popular understanding of spring source code -- Analysis of default tags (import, alias, beans)

Popular understanding of spring source code (6) -- Analysis of default tags (import, alias, beans) The parseDefaultElement method of documentReader is mentioned in the previous section. From this point on, various labels are parsed. Among them, bean label parsing is the most complex. So let's first look at the other three default labels pr ...

Posted by shahryar on Sun, 07 Jun 2020 06:03:10 +0200

Pandas-01-DataFrame|Series Common Methods

This paper introduces the data structure DataFrame and eries of data analysis star pack Pandas in Python, which is practical. Copyright Statement: This is an original blogger article, please indicate the source of the original text for reproducing, no white lyrics! Writing time: 2020-06-06 0:08 ...

Posted by designationlocutus on Sat, 06 Jun 2020 02:56:32 +0200

Beauty of mybatis source code: 2.2. Convert DOM corresponding to mybatis global configuration file to XNODE object

Convert DOM corresponding to mybatis global configuration file to XNODE object In the above, we have completed the construction of XmlConfigBuilder object and prepared the basic environment for parsing XML files. So the next step is to call the parse() method exposed by XmlConfigBuilder to complete the parsing of mybatis configuration file. pub ...

Posted by lupus2k5 on Fri, 05 Jun 2020 08:15:43 +0200

Spring IOC source reading notes (10)

After analyzing the loading of BeanFactory containers, let's take a look at the loading of ApplicationContext, a more complex container that we currently use. Compared with BeanFactory, ApplicationContext has the following differences: 1. Inherit MessageSource and provide international standard access p ...

Posted by MrAdam on Fri, 05 Jun 2020 07:08:29 +0200

Echart's basic graphic configuration and production

1. Introduce echarts ·Introducing src directly into html ·ES imports from node_ module/echarts/echarts ·Generally, VAR ecrats = require ("ecrats"); 2. js configuration 1. Echarts Initialize and bind container var echarts = Echarts.init(document.getElementById('mai ...

Posted by phpn00bf4life on Fri, 05 Jun 2020 06:07:18 +0200

MySQL library building, table building, constraints building and storage engine

1. MySQL Library and Table Building 1. Create a database Creating a database is a block area on the system disk used for data storage and management. If an administrator creates a database for users when setting permissions, it can be used directly. Otherwise, you need to create the database yourself. Grammar Format: CREATE DATABASE [IF NOT ...

Posted by Horatiu on Wed, 03 Jun 2020 18:20:45 +0200

Understand this thoroughly

This is one of the most commonly used keywords when we write code. Even so, it is also the most easily headache keyword for JavaScript. So what is this? If you know the execution context, you will know that this is actually an attribute of the execution context object: executionContext = { scopeChain:[ ... ], VO:{ ... }, ...

Posted by Xoom3r on Wed, 03 Jun 2020 07:45:05 +0200

Glide (II) Request queue management

entrance The first part summarizes the life cycle management of Glide by using fm and an empty Fragment. Here we continue to see load & into. Don't talk about it // The first part analyzes with and continues to see load & into Glide.with(this).load("url").into(...); 1.1 load public RequestBuilder<Drawa ...

Posted by Pyrite on Sun, 31 May 2020 08:21:07 +0200

C#Simple Getting Started - Suitable for Beginners

First C#Program using System; namespace HelloWorldApplication // Namespace Declarations { /* Class name is HelloWorld */ class HelloWorld // A class { /* main function */ static void Main(string[] args) { /* My First C#Program */ Console.WriteLine("Hello World!"); Co ...

Posted by roneill on Sat, 30 May 2020 18:44:39 +0200

IOC details of Spring (based on annotation)

concept IOC(Inversion of Control): the so-called inversion of control is that the application itself is not responsible for the creation and maintenance of dependent objects, and the creation and maintenance of dependent objects are in the charge of external containers. In this way, the application of ...

Posted by paulnaj on Sat, 30 May 2020 09:37:49 +0200