jndi相关

JNDI(Java Naming and Directory Interface，Java命名和目录接口)

jndi通过数据源获取数据库链接。

InitialContext context=new InitialContext();
Context evnContext = (Context)initContext.lookup("java:/comp/env");
DataSource dataSource = (DataSource)evnContext.lookup("jdbc/sample_db");
Connection con = dataSource.getConnection();