Java in-depth learning: multithreaded detailing

Multi-threading purpose: There are many different paths to execute programs at the same time, so as to improve the efficiency of program operation. Multithread applications: database connection pool, multithreaded file download, etc.   Note: Using multithreading in file downloading can't improve speed. In a process, there must be a main thr ...

Posted on Tue, 08 Oct 2019 04:42:41 -0700 by Mark W

Java JDBC operates on binary data, date and time

binary data mysql provides four types to store binary data: TinyBlob can store up to 255 bytes Blob can store up to 65KB Medium Blob can store up to 16MB LongBlob can store up to 4 GB   1 //from properties Loading database configuration in files 2 Properties properties = new Properties(); 3 InputStream inputStrea ...

Posted on Mon, 07 Oct 2019 22:16:51 -0700 by gasper000

"Play Python" to create one hundred thousand Bowen crawler

Preface Here, for example, to crawl blog articles for reference only, some AD flying websites are too wasteful of the feelings of crawlers. Crawl Use Beautiful Soup to get blog posts Transfer Html to Markdown via html2text Save Markdown to the local file Download the image in Markdown to t ...

Posted on Mon, 07 Oct 2019 21:35:01 -0700 by dmcke5

Development of small program payment function C#.NET

There are many pits in the development of small program payment functions, but caution is also a good thing for money. There are many examples of small program payment on the Internet, but most of them have some problems, and C# is less developed. The purpose of this document is to make a comment on the problems encountered in the development p ...

Posted on Mon, 07 Oct 2019 12:59:26 -0700 by Chad11

Realization of the Functions of Teaching Institutions in Online Education Projects

Functions: List of Teaching Institutions (Pageable, Selectable by Category, Area, Sorted by Number of Students and Courses) Institutional Details Page (Collectable Institutions, What Courses, Lecturers, and Institutional Introduction) Consultable courses (using ModelForm) Corresponding url ...

Posted on Mon, 07 Oct 2019 07:03:18 -0700 by efron

Use of Druid Database Connection Pool

Use of Druid Database Connection Pool I. Basic use of Druid_ Druid: database connection pool implementation technology, provided by Steps: 1. Import the jar package druid-1.0.9.jar * Don't forget to import database-driven jar packages 2. Define the configuration file: * It's in the form of p ...

Posted on Mon, 07 Oct 2019 04:39:35 -0700 by emdee

Design and Making of Dynamic Website

Design and Making of Dynamic Website Design and Making mysql Database Creation Statement for Dynamic Website Dynamic website design and production oracle database creation statement Design and production of SQL Server database creation statement for dynamic website Dynamic website design a ...

Posted on Sun, 06 Oct 2019 20:51:33 -0700 by leesiulung

editormd generates blog editing pages

<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4"> <head> <meta charset="UTF-8"> <title>write an article</title> <link rel="stylesheet" href="https://amaze ...

Posted on Sun, 06 Oct 2019 18:15:52 -0700 by dlf

druid database connection pool password encryption processing (official network)

Use ConfigFilter The functions of ConfigFilter include: Read the configuration from the configuration file Read configuration from remote http file Encryption for database passwords 1 ConfigFilter Configuration 1.1 Configuration file read from local file system <bean id="dataSource" class ...

Posted on Sun, 06 Oct 2019 15:21:14 -0700 by dtyson2000

PHP uploads files using OSS

I. install Alibaba cloud oss sdk 1. Install oss sdk by executing the following commands in the website root directory. composer require aliyuncs/oss-sdk-php After installation, a folder named aliyuncs will be found under the website root directory / vendor. Note: Aliyun oss - sdk document (no need to pay attention) "Official oss - sdk docu ...

Posted on Sun, 06 Oct 2019 11:46:33 -0700 by rv20