Programmer Think

Introduction The code of this article has been submitted to Github (version No.: 0bc0c9f7be8c3a9c64b2e9efec94f55ed8b1a334). Students who are interested can download it to have a look: https://github.com/ylw-github/taodong-shop In the last section Taodong e-commerce project (24) - access to verifica ...

brief introduction In the previous article, QQ login is completed. Generally, if the current QQ login user is not registered in our database, he should skip to the registration binding page. If we do not configure the jump page, he will jump to / signup by default Source code analysis Enter social authentication filter private Authenti ...

Article directory 1. Alias as 2. Part of data before query: top n column name: indicates the first n rows to view 3. Sort: order by column name 1 ASC (ascending) | desc (descending), column name 1 asc|desc 4. De duplicate lines: distinct 5. Condition query: write after where 6. Fuzzy query: used to p ...

This article is referenced from: https://blog.csdn.net/mss359681091/article/details/52078147 All file downloads needed in this article contain items: Lucene Profile Download Download Zip for this project Create a Windows Forms application with vs2015. When you create a project, remember to change its properties to Console Application. Of co ...

Article directory The role of @ profile 2 two ways to activate the environment Source address of demo of this bloghttps://github.com/suchahaerkang/spring-annotation.git The role of @ profile @Function of Profile: switch between different environments, and register different components to the con ...

Write before SpringBoot is easy to create projects, and data access throws away a lot of tedious configuration. In the previous series of blogs, I've taught you how to use SpringBoot for data access. It talks about integrating JDBC, MyBatis, and JPA.In my own actual development, I am more used to usin ...

1, Connect to database Do not use database management software (such as Navicat, etc.), connect mysql server through dos, and then operate database General format for connecting to database: mysql -P port number - h mysql host name or ip address - u user name - p Explanation: (- P upper case P represe ...

All the way to learn Java is like stepping on a hole. Come and let's count my blood and tears over the years Rookie stage, spend almost every day on thunder... First: the database table field cannot use sql field, and a 500 error will be reported. For example, the order will report an error when select ing. Second: when using int type for ...

Script function Brief 1. Export remote mysql database table data to local and save as file 2. Support the configuration of table information to be exported to the configuration file. The script will cycle the configuration file and parse the configuration file, and then complete the subsequent data export. 3. Incremental export by time is ...

Spring Data Jpa (2): use and source code analysis of Spring Data Jpa 1, Overview of Spring Data JPA 1.1 Spring Data JPA 1.2 relationship between Spring Data JPA, JPA and hibernate 2, Getting started 2.1 integrating Spring Data JPA and Spring 2.2 use JPA annotation to configure mapping relationship ...