test database connection online

SummaryThis paper introduces the principle and problems of Java Access database, puts forward the solution-database connection pool, analyzes its key problems, constructs a simple and easy-to-use connection pool and illustrates how it is used in

talking about the principle of database connection pool Hong Jongjun This time we take a technological evolution to talk about the process of database connection pooling technology and its rationale, and the most popular open source database

JDBC: database connection pool, jdbc database connection pool Required tools Commons-pool2-2.3.jar: dependency library implemented by connection pool Commons-dbcp2-2.0.1.jar: Implementation of Connection Pool C3p0-0.9.2.1.jar If Method

This time we take a technological evolution to talk about the process of database connection pooling technology and its rationale, and the most popular open source database connection pool jar package today.I. How do we perform database operations

The need for a JDBC database connection poolWhen using the development of a database-based Web program, the traditional pattern is basically the following steps: Establish a database connection in the main program (such as servlet, beans).

In the Java language, JDBC (Java database Connection) is a bridge between application and database communication,That is, the Java language accesses the database through JDBC technology. JDBC is an "open" scenario that provides a standard

Data | database | Chinese in various application development of database, connecting database is the first step of database application development, and also the most important step. For different databases, their connection modes are different, and

The tools you needCommons-pool2-2.3.jar: Dependency libraries for connection pooling implementationsCommons-dbcp2-2.0.1.jar: Implementation of connection poolingC3p0-0.9.2.1.jarIf you use C3p0 to appear Method ' initializationerror ' not

To a certain extent, the pool technology can significantly optimize the performance of server applications, improve program execution efficiency and reduce system resource overhead. The pool mentioned here is a pool in a broad sense, such as the

This time we take a technological evolution to talk about the process of database connection pooling technology and its rationale, and the most popular open source database connection pool jar package today.I. How do we perform database operations