KingRobin

dbcp数据库连接池 DbcpUtils.java import java.io.IOException; import java.io.InputStream; import java.sql.Connection; import java.sql.SQLException; import java.util.Properties; import javax.sql.DataSource...

DBTool.java package util; import java.sql.*; public class DBTool { static Connection conn = null; static String driverClass = "com.mysql.jdbc.Driver"; static String url = "jdbc:mysql://localho...