摘要：package Emprry; import jdbcUtil.JdbcUtil; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.SQLException; import java.util.jar.JarEntry; public class Emprry { /* ... 阅读全文

摘要：package jdbc;import java.sql.*; public class Jdabc { private static Connection Conn; public static Connection getconnection( String url,String userNam 阅读全文