jdbc驱动连接数据库是一种用于执行SQL语句的Java API，可以为多种关系数据库提供统一访问，它由一组用Java语言编写的类和接口组成-JDBC ( Java Data Base Connectivity, Java database connection ) is a method used to execute the SQL statement Java API, can provide a variety of relational database to provide unified access, which is composed of a set of Java language classes and interfaces. JDBC provides a standard, accordingly can build more advanced tools and interface, database developers to write a database application, at the same time, JDBC is also a trademark.