Programmer Think

background According to my blogging practice, first explain the background. In the company's system, our configuration files are divided into several parts. Different configuration files have different configuration contents. For the output of logs, different environments need to make different outputs. This is a premise. This article will talk ...

1.1. Requirements Query class information based on class id (with teacher's information) 1.2. Creating tables and data Create a table of teachers and classes. Let's assume a teacher teaches only one class. The relationship between teachers and classes is one-to-one. 1.3 sql statement CREATE TABL ...

TypeScript: 1. It is a superset of JavaScript that supports the ES6 standard. 2. Free and Open Source Programming Language Developed by Microsoft 3. The design goal is to develop large-scale applications, which can be compiled into pure JavaScript, and the compiled JavaScript can run on any browser. 4. Extended JavaScript syntax, so existi ...

I. Introduction of SSM Framework Architecture and Process SSM framework, usually refers to the integration of spring mvc+spring+mybatis three frameworks, spring mvc itself is part of spring, so there is no integration between the two. The main thing here is to integrate spring and mybatis framework, in fact, SqlSessionFactory object is handed ...

Zookeeper and can be redis Common commands java -version Query jdk for installation amel@Camel ~]$ java -version openjdk version "1.8.0_181" OpenJDK Runtime Environment (build 1.8.0_181-b13) OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode) [camel@Camel ~]$ Decompress tar zxvf zookeeper-3.4.6.tar.gz z: Specifies the compres ...

From: http://blog.csdn.net/honghaier/article/details/62494089 ” Fangka "Mahjong R&D skills, in the"Red Boy's Game Development Road". Welcome to pay attention to the public number! Fangka Mahjong Analysis Series of "Thousand-mile Pronunciation" In the room card game, it is necessary t ...

This paper mainly explains how to log with Log4Net and the advantages of logging in the process of program development. It can provide a precise environment for application runtime, and it can help developers find the Bug in the application as soon as possible. Once the Log output code is added to the program, the log information can be genera ...

I. Loading Method 1. Static loading 1.1 Loading Step (1) Create fragment: Create a custom fragment class that inherits from the Fragment class and binds the custom fragment class to the Fragment view (converting layout into View) View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) _inflater is used to bind ...

I. Preparations 1. Development Platform and SDK Download Wechat Open Platform https://open.weixin.qq.com Download SDK Wechat Payment Demo Download http://pay.weixin.qq.com/wiki/doc/api/app.php?chapter=11_1   2. Creating Applications Creating Mobile Applications to Get AppID AppSecret To obtain payment function, it also needs developer qualific ...

Private warehouse principles Private warehouse benefits Build private warehouses Use private warehouses _Maven, as the current mainstream project management tool, has great performance in dependency management, system building, etc.However, it is a nightmare for users to visit Maven warehouses abroad. Building a private Maven warehou ...