Programmer Think

JDBC programming steps 1, Get link method 1.1 mode 1: use Dirver interface Driver driver=new com.mysql.jdbc.Driver(); //jdbc:mysql protocol //localhost:ip address //3306: default MySQL port number //test: Database String url="jdbc:mysql://localhost:3306/test"; //The properties interface is used to read configuration files in the for ...

catalogue 1. Configuring mysql for cas server 2. cas server custom password encryption method 3. The cas server can customize the theme, that is, the login page, or other pages 4. The cas server adds fields to the form submitted during login 5. cas server custom login verification 6. cas server custom return exception 7. The cas server uses aj ...

Author: osmanthus New Year cake, no reprint without permission! Continuous updating preface The project is written in C and C + +. It involves many knowledge points and has not been written yet. It is a good project to expand our horizons! In the future, relevant teaching videos will be placed at the end of the article. Please pay att ...

Recently, many insertBatch codes have been written in new projects. It has been said that batch insertion is much more efficient than circular insertion. This paper will experiment. Is it true? Test environment: SpringBoot 2.5 Mysql 8 JDK 8 Docker First, insert multiple pieces of data. Options: foreach loop insert Splicing sql, one execution ...

8. Spring boot integrates redis Import dependency <!--redis rely on--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <!-- <version>2.1.6.RELEASE</version>--> </dependen ...

introduction All presentations are based on the table student. The student creation statement is as follows: create table if not exists Student( id int, name varchar(20), math float, english float, chinese float ); I newly added 1. Single row data + full column insertion insert into Table name values(Corresponding value o ...

less-1 Judge injection point Add in the url according to the prompt? id=1 - note that all the symbols entered here are in English Of course 2, it's OK. It's just to pass a parameter and output a login result After we know the successful landing page, we should now try his guess about the closing mode of a piece of code (here are "' ...

When developing JAVA projects, we need to interact with the database. At the beginning of database programming, we choose JDBC, which is the API for how to interact between the database and JAVA programs, but the steps are cumbersome. Today, we will learn about the latest database framework, MyBatis. It is a semi-automatic persistence layer fra ...

1: DBCP data source DBCP: short for database connection pool, it is the implementation of open source connection pool under Apache organization and the connection pool component used by Tomcat server. When using DBCP data source alone, you need to import two JAR packages in the application, as follows: 1.commons-dbcp.jar package commons-dbcp.j ...

Continuous learning & continuous updating Keep breaking away Multi table relation There are two perspectives when thinking about the relationship between the two tables: Think about table B from table A (see table A as an A)Think about table A from table B (see table B as A b) That is: Look at table B from an AStart from ...