springboot learning - integrate JdbcTemplate

12:59:22, February 1, 2020 The epidemic continues, disrupting many of my plans It's also good to study at home     Introduction to JdbcTemplate Spring encapsulates the operation of database deeply on jdbc. With spring's injection function, DataSource can be registered in JdbcTemplate. The Jdbc ...

Posted by magaly on Fri, 31 Jan 2020 22:21:18 -0800

centos7 hadoop+hive installation

Prepare four virtual machines Virtual Machine Installation 1.Create a new virtual machine 2.Click on Typical Installation(Recommend) 3.Select Chinese and click on your own partition # Partition Configuration (JD Usage) /boot 200M swap 512M # Not enough native memory, swap / # root directory 4.Configu ...

Posted by Derek on Fri, 31 Jan 2020 20:33:17 -0800

Spring Boot + MyBatis quick start

I've learned Spring Boot these days, and I want to record it for review in the future. Spring Boot greatly simplifies the complexity of XML configuration in the past. A Web project can be built with a few simple lines of configuration, which greatly saves development time. Environmental preparation Eclipse JDK 1.7 Maven M ...

Posted by JP128 on Fri, 31 Jan 2020 13:32:39 -0800

JAVA program operation MYSQL database

Preface Before learning to operate MYSQL database with JAVA program, we need to download and configure it Eclipse and jdk1.8 , and the tools most needed this time: MySQL database and JDBC driver Download driver jdbc 8.0.11 download website: https://dev.mysql.com/downloads/connector/j/ Load driver Open eclipse and righ ...

Posted by adamata on Fri, 31 Jan 2020 10:38:20 -0800

Copy / copy database without mysqldump

Without local access to the server, is there any way to copy / clone MySQL database (including content and excluding content) to another database without using mysqldump? I am currently using MySQL 4.0. #1 building If you're using Linux, you can use the following bash script: (it may need some other code cleansing capabilities, but it ...

Posted by kel on Fri, 31 Jan 2020 03:16:41 -0800

MySQL export data select into outfile usage

Reproduced from: https://blog.csdn.net/caoxiaohong1005/article/details/72571798 1. select into outfield function: Export data to the specified directory of pc. 2. Syntax: SELECT ... INTO OUTFILE 'file_name' [CHARACTER SET charset_name] [export_options] export_options: [{FIELDS | COLUMNS} [T ...

Posted by artist-ink on Thu, 30 Jan 2020 21:26:38 -0800

MySQL export data select into outfile usage

Reproduced from: https://blog.csdn.net/caoxiaohong1005/article/details/72571798 1. select into outfield function: Export data to the specified directory of pc. 2. Syntax: SELECT ... INTO OUTFILE 'file_name' [CHARACTER SET charset_name] [export_options] export_options: [{FIELDS | COLUMNS} [T ...

Posted by west4me on Thu, 30 Jan 2020 21:21:15 -0800

JDBC notes - JDBC concept, introduction, and related objects

## JDBC: 1. Concept: Java DataBase Connectivity, Java language operation database * essence of JDBC: in fact, it is a set of rules defined by the official (sun company) to operate all relational databases, that is, interfaces. Each database manufacturer will implement the socket and provide the da ...

Posted by ballouta on Thu, 30 Jan 2020 00:04:29 -0800

python entry practice - student management system

Opening chapter Recently, I have nothing to do at home and started Python language. I have been engaged in Java development, so it is easier to learn Python than to start from scratch. After learning the basic grammar, I made a student management system (necessary for university course design ~), and consolidated the python grammar. Next, I wil ...

Posted by Monadoxin on Wed, 29 Jan 2020 23:53:18 -0800

LNMP environment setup (php7.3 installation under Centeros 7.7, PHP installation sqlsrv extension)

The article concludes with the material information and installation instructions for this project Article Directory 1. Basic preparation 2. Install Mysql 3. Install PHP 4. Install Nginx 5. Nginx Integration php 6. Install PHP extensions END 1. Basic preparation System Environment CenterOs7. ...

Posted by crickettdt on Wed, 29 Jan 2020 18:56:20 -0800