import java.sql.Connection;
import java.sql.DriverManager;
public class DbUtil {
private String dbUrl="jdbc:mysql://localhost:3306/db_book"
;
private String dbUserName="root"
;
private String dbPassword="123456"
;
private String jdbcName="com.mysql.jdbc.Driver"
;
/**
* 获取数据库连接
* @return
* @throws Exception
*/
public Connection getCon()
throws Exception{
Class.forName(jdbcName);
Connection
con=
DriverManager.getConnection(dbUrl,dbUserName,dbPassword);
return con;
}
/**
* 关闭数据库连接
* @param con
* @throws Exception
*/
public void closeCon(Connection con)
throws Exception{
if(con!=
null){
con.close();
}
}
public static void main(String[] args) {
DbUtil dbUtil=
new DbUtil();
try {
dbUtil.getCon();
System.out.println("数据库连接成功"
);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
转载于:https://www.cnblogs.com/zhanghongqiang/p/4430222.html
相关资源：常用jdbc数据库连接jar包，数据库连接池jar包
