PHP member overloading and actual combat

1, Static member Application scenario: 1. If an object is only used once, is it necessary to create an object? Isn't it more convenient to treat a class as an object directly2. If multiple objects need to share some properties and methods, but they must be called by independent objects, and they can ...

Posted on Sat, 18 Jan 2020 20:21:28 -0800 by sprint10s

About the Use and Configuration of Log4Net

0. Introduction The Log4Net library is an implementation of the Apache log4j framework under the.NET platform and is open source and free of charge.It can output logs to different media in different formats and levels. Official address: http://logging.apache.org/log4net/index.html Log4Net open so ...

Posted on Fri, 17 Jan 2020 18:08:39 -0800 by coffejor

Basic use of 02mybatis

1. Create the resource folder config under the web directory, add the log4j.properties and SqlMapConfig.xml configuration files 2. Create log4j.properties under config as follows:   # Global logging configuration log4j.rootLogger=DEBUG, stdout # Console output... log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.ap ...

Posted on Thu, 16 Jan 2020 10:17:37 -0800 by mrjiggyhill

Getting started with sharingsphere

Article directory Getting started with sharingsphere About sharing sphere Solemnly declare Using java as an example Engineering structure (single overall structure) SQL script configuration file Code test New data Query according to sub base rules Query according to table splitting rules Query b ...

Posted on Thu, 16 Jan 2020 07:07:25 -0800 by zeropaid

store (mall project) Springboot+springmvc+ajax+mybatis

37. Provincial and urban area - acquisition list - controller layer For requests to be processed: Request path / districts/ Request parameter: String parent Request method: GET Response results: jsonresult < list < District > > Block: No, you can access without login Because there i ...

Posted on Wed, 15 Jan 2020 05:01:07 -0800 by PRodgers4284

Pure jdbc operation oracle database migration to mysql database (test 2000 tables, single table data more than one million, no OOM)

Article directory Preface Thinking before coding Realization demo structure Introducing dependency Implementation class optimization Source code Preface Data migration is always troublesome. If there is a need for oracle to mysql, data migration is a big problem Before data migration, baidu ha ...

Posted on Wed, 15 Jan 2020 04:14:48 -0800 by rudibr

Django entry diary Day3

User registration 1. I nitializing a Django App From the command line, cd to the project folder, and then: >python manage.py startapp users Register a new app in settings.py. Add the following to the installed? APS list: 'users.apps.UsersConfig', Add a path for the new app in urls.py. Add t ...

Posted on Tue, 14 Jan 2020 02:43:45 -0800 by purpendicular

MyBaits series - Executor of MyBatis source code

Knowledge points What Executor executors does Myabtis have and what are the differences? How does Mybatis configure which Executor to use? How does Mybatis implement batch processing? Mybatis's primary key policy, batch write, can you return the database primary key? The main structure and function of Executor package Executor interface and i ...

Posted on Tue, 14 Jan 2020 00:30:26 -0800 by billynastie2007

android's functional api for word translation

android's function of word translation Train of thought: 1. Layout interface, an interface for adding new words, a main interface for inputting content to be translated, and an interface for displaying translation results. 2. java code: first, add the new words: add ﹣ activity; then add the databas ...

Posted on Mon, 13 Jan 2020 22:08:46 -0800 by JoeDaStudd

Generic T of java

Generic T of java Java Generics is a language feature of Java that allows for the definition and use of generic types and methods.Generic types or methods differ from regular types and methods in that they have type parameters. A class like LinkedList is a generic type. It has a type parameter E tha ...

Posted on Mon, 13 Jan 2020 02:37:59 -0800 by coffeeguy