原创 volatile in Java
volatile variables are stored in main memory, and never optimized away (for instance, storing in the CPU cache). Once t
2020-07-06 21:24:23
原创 Debugging Intellij IDEA
1, Help > Show Log in Explorer. 2, Right Click > Mark Directory As > Source Root.
2020-07-06 21:24:23
原创 Oracle Pagination
1, order by is logical order, while rownum is based on the physical position; in a temporary table generated by a subqu
2020-07-06 21:24:23
原创 DataGrip
1, show all schemas of a database connection: Click on the icon to the right of the database connection name, and then
2020-07-06 21:24:23
原创 SCP
Copy file from a remote host to local host SCP example: $ scp username@from_host:file.txt /local/directory/ Copy file
2019-08-23 07:36:50
原创 Chrome
1, you should disable network when installing Chrome, NetEase Cloud Music, for they will auto-update. 2, if you need Xu
2019-08-23 07:36:50
原创 LocalDate
package com.google.adventure.pojo.year2019.girlProject; import java.time.*; import java.time.format.DateTimeFormatter
2019-08-23 07:36:49
原创 Common Pitfalls
1, bind the click event twice to the submit button 2, curcuit breakers are not in use when automatic retries are in pla
2019-08-23 07:36:39
原创 MyBatis
1, @Insert @Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")
2019-08-23 07:36:39
原创 JDBC Template
1, package tacos.data; import java.sql.Timestamp; import java.sql.Types; import java.util.Arrays; import java.util.Da
2019-08-23 07:36:39
原创 MySQL and Spring Boot Integration
1, download MySQL https://cdn.mysql.com//Downloads/MySQLInstaller/mysql-installer-community-8.0.17.0.msi 2, install My
2019-08-23 07:36:39
原创 MySQL
1, Ctrl + Shift + Esc to open the window in which we can find all the services. Type "mysql", you should find "MySQL80"
2019-08-23 07:36:39
原创 react-bootstrap
1, install the dependency npm install react-bootstrap bootstrap 2, use the following site to help you code react-boots
2019-08-15 07:00:25
原创 Java Regular Expression
1, Pattern p = Pattern.compile("<.*?>(.*)</.*?>", Pattern.CASE_INSENSITIVE | Pattern.DOTALL); Matcher matcher = p.
2019-08-15 07:00:25
原创 Generate QR Code Using JS
1, in html <script src="../../../../js/activity/2019/businessInvite/qrcode.min.js?v=20190606"></script> 2, in js
2019-08-15 07:00:25