摘要： 1. 原理代码示例public class JdbcPool implements DataSource { private static LinkedList list = new LinkedList(); static{ try{ InputStream in = JdbcPool.class.getClassLoader().getResourceAsStream("db.properties"); Properties prop = new Properties(); prop.load(in); String driver = prop.getProper... 阅读全文

摘要： 1. 事务指逻辑上的一组操作，组成这组操作的各个单元，要不全部成功，要不全部不成功。数据库开启事务命令•start transaction开启事务•Rollback 回滚事务•Commit 提交事务JDBC控制事务语句•Connection.setAutoCommit(false); //start transaction•Connection.rollback(); //rollback•Connection.commit(); //commit设置事务回滚点•Savepoint sp = conn.setSavepoint();•Conn.rollback(sp);•Conn.commit 阅读全文