Programmer Think

How to protect the connection validity when the druid connection pool is not set with a keep alive mechanism? If a fatal exception occurs in the connection, the keep alive connection array will be added, and then the validity will be verified;If the physical connection timeout is set and the idle time of the connection is greater than the set ...

1, Background Durid is a widely used database connection pool, which has superior performance, powerful monitoring mechanism, and also supports expansion through the mechanism of filter. Druid has a StatFilter for slow sql recording, but I found some shortcomings in using it: The print log of this Fi ...

1. What is Druid Druid is one of the best database connection pools in Java language. Druid can provide powerful monitoring and extension functions. 2. Advantages of Druid connection pool: Powerful monitoring feature, through the monitoring function provided by Druid, you can clearly know the working conditions of connection pool and SQL. ...

ps: it's relatively simple. It's used to lay the foundation for us to use springboot 1: Objectives Integration: springmvc+spring+mybatis+maven Small function: query all user information 2: Integration ideas: pom dependency configuration file Run through a small function 3: Integration steps: (1) New maven project (2) pom dependency ...

Preface After a noisy day, problems such as too many redirects to visit the Druid login interface and no login interface can be seen are finally solved. Let's go through how to integrate Druid on native JDBC. 1, Create a new project integrating JDBC data sources [1] Introduction of starter [2] Confi ...

introduce Druid is first a database connection pool. Druid is the best database connection pool at present, surpassing other database connection pools in function, performance and scalability. Druid has deployed more than 600 applications in Alibaba, which has passed the severe test of large-scale deployment of production environment for more t ...

Add dependency <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.0</version> </dependency> Configure connection pool # JDBC configuration spring.datasource.type=com.al ...

Druid supports SQL [ EXPLAIN PLAN FOR ] [ WITH tableName [ ( column1, column2, ... ) ] AS ( query ) ] SELECT [ ALL | DISTINCT ] { * | exprs } FROM table [ WHERE expr ] [ GROUP BY exprs ] [ HAVING expr ] [ ORDER BY expr [ ASC | DESC ], expr [ ASC | DESC ], ... ] [ LIMIT limit ] [ UNION ALL <another query> ] Duration data type The duration ...

background As we all know, in the process of software development, we usually have production environment, development environment, test environment and so on. For these environments, we need to set different values for the same parameters in the configuration file. Then, how to switch simply, elegantly and quickly? Solution I. use the Pro ...

About the configuration of multiple data sources, I have introduced the configuration of multiple data sources of JdbcTemplate with you. That is relatively simple. This article will talk about the configuration of multiple data sources of MyBatis with you. In fact, as for multi data sources, my attitude is the same as before. For complex data s ...