前台网页与后台数据库的连接

1、asp.net  +  mssql

using  System.Data.SqlClient;

string  [email protected]"Data Source=20131231-0936\SQLEXPRESS;Initial Catalog=czcjc;Integrated Security=True";

SqlConnection con=new SqlConnection(sqlstr);

SqlCommand  cmd=new SqlCommand();

cmd.Connection=con;

sqlstr="select * from czcjc";

cmd.CommandText=sqlstr;

conn.Open();

DataTable dt=new DataTable();

SqlDataAdapter da=new SqlDataAdapter();

da.SelectCommand=cmd;

da.Fill(dt);

2、asp.net + oracle

using  System.Data.OracleClient;

string  orastr="Data Source=czc;User ID=system;Password=wzfsystem;Unicode=True";

OracleConnection con=new OracleConnection(orastr);

OracleCommand  cmd=new OracleCommand();

cmd.Connection=con;

orastr="select * from czcjc";

cmd.CommandText=orastr;

conn.Open();

DataTable dt=new DataTable();

OracleDataAdapter da=new OracleDataAdapter(str,conn);

//da.SelectCommand=cmd;

da.Fill(dt);

3、jsp + mssql

4、jsp + oracle

前台网页与后台数据库的连接