tomcat database connection pool

Data | database | Database connection is followed by the factory class connectionfactory of the connection pool, which corresponds to a connection pool object with a name that allows th

The database connection pool is responsible for allocating, managing, and freeing the database connection , which allows the application to reuse an existing database connection instead

to the manager, thus minimizing unnecessary database connection consumption.The Java Database service JDBC does not provide an actual connectionpool implementation, but leaves out an interface to support a third-party service provider, and I think the most important interface is datasource.There are actually four ways that Java accesses a

any significant performance overhead. But for a complex database application, the situation is completely different. Frequent establishment and shutdown of the connection will greatly reduce the performance of the system, because the use of the connection becomes the bottleneck of the system performance. The method presented in this paper can solve the problem

The Oracle driver package Tomcat 6.0 configures the Oracle database connection pool, and MySQL and MSSQL are pushed accordingly.Tomcat6.0 database connection pool configuration instance

Tags: text many speed minimum style and Ext Max classDbcpDBCP may be the most used open source connection pool, probably because of the ease of configuration, and many examples of open source and Tomcat applications are used for this connection pool.This connection

Design | data | database | database connection Pick to beThis paper introduces the working principle of database connection pool based on JDBC, expounds the key technologies such as transaction processing of

In general Java projects and now particularly hot data analysis projects, the use of database and database resource pool connection is a commonplace. Today it's a simple way to sort through the process: We look at the code in order of dispatch: Comment, we are from the spark data analysis to do demo expansion: First, s

Org. apache. log4j. jdbc. JDBCAppender uses the traditional JDBC connection method to connect to the database, which is inefficient. To solve this problem, we now customize a Log4j Appender and change the database connection to the connection

occur, in the end, we will have to restart the database. To solve the above problems, we first thought we could use a global Connection object. After the object is created, it will not be closed, and the program will continue to use it, so that there will be no problem of creating or closing the Connection each time. However, if the same

). In this case, the system overhead is quite large. In fact, in a database-based WEB system, database connection is one of the most costly operations in the system. Most of the time, this may be the bottleneck for your website speed.Second, in the traditional mode, you must manage each connection to ensure that they c

Label:1 traditional connections are insufficient:1) Use DriverManager to get a connection and load the connection into memory, verify the user name password, etc., after the execution of the release, such a way will consume a lot of resources and time2) Each database connection, the use of the end must be disconnected,

Implementation of design features:----does not have a business layer that calls DAO directly from the servlet, so there is no transactional operation, so get the connection object directly from the DAO----using MVC Design PatternsThe technology used in----。 MVC design Pattern, Jsp,servlet,pojo。 Database using MySQL。 Database