1)环境说明

OS: Windows XP

Informix: IDS V10.00.TC1

JDBC: Informix JDBC Embedded SQLJ V2.20JC2



2)JDBC配置

安装完Informix JDBC后把ifxjdbc.jar路径加到CLASSPATH环境变量中，比如CLASSPATH=C:ifxjava_homelibifxjdbc.jar;....



在安装完后的目录中有doc目录，里面有详细的文档说明。

还有demo目录，里面有可以参考的源代码



3)DEMO代码

下面的源代码，是参考了(doc eleaseoij_jdbc_migration.html)

通过Java使用JDBC连接IDS V10.0



import java.sql.*;

import java.util.*;



public class ifx_con

{



   public static void main(String[] args)

   {

    Connection conn;

String url = "jdbc:informix-sqli://IBM-HENRY:1526/sample:informixserver=ol_henry;user=henry;password=happyday";



       System.out.println("Informix JDBC connect test.");            

               

       try

       {

           // Load the Informix JDBC Driver

           //DriverManager.registerDriver((Driver) Class.forName("com.informix.jdbc.IfxDriver").newInstance());

           Class.forName("com.informix.jdbc.IfxDriver");

       

           //Create and open a server/database connection

           conn = DriverManager.getConnection(url);    

           System.out.println("JDBC driver name: " + conn.getMetaData().getDriverName());

           



   //Queries that return more than one row

   Statement query = null;

   ResultSet rs = null;

   String st = new String();

   

   try

   {

    query = conn.createStatement();

    rs = query.executeQuery("select * from customer");

    while (rs.next())

    {

    System.out.println(rs.getString(2));

    }

    rs.close();

    query.close();

   }

   catch (SQLException exce)

   {

    System.out.println("Caught: " + exce.getErrorCode());

   }



   

           conn.close();    

       }

catch (ClassNotFoundException drvEx)

    {

      System.err.println("Could not load JDBC driver");

      System.out.println("Exception: " + drvEx);

      drvEx.printStackTrace();

    }

    catch(SQLException sqlEx)

    {

      while(sqlEx != null)

      {

        System.err.println("SQLException information");

        System.err.println("Error msg: " + sqlEx.getMessage());

        System.err.println("SQLSTATE: " + sqlEx.getSQLState());

        System.err.println("Error code: " + sqlEx.getErrorCode());

        sqlEx.printStackTrace();

        sqlEx=sqlEx.getNextException();

      }

    }

   }

}