[Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
数据库操作时报这个错是怎么回事？
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(Unknown Source)
at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Source)
at com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown Source)
at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source)
at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.ibatis.common.jdbc.SimpleDataSource.popConnection(SimpleDataSource.java:580)
at com.ibatis.common.jdbc.SimpleDataSource.getConnection(SimpleDataSource.java:222)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTransaction.java:48)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:89)
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForObject(GeneralStatement.java:104)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:566)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:541)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForObject(SqlMapClientImpl.java:83)
at com.zzr.main.Test.main(Test.java:39)

  public class Test {



	/**

	 * @param args

	 */

	public static void main(String[] args) {

		// TODO Auto-generated method stub

		String resource ="com/zzr/resource/SqlMapConfig.xml";

		Reader reader= null;

		SqlMapClient sqlMap = null;

		try{

		reader = Resources.getResourceAsReader( resource );

		sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader); 

		

		//sqlMap系统初始化完毕，开始执行update操作

		

//		sqlMap.startTransaction();

//		User user = new User();

//		user.setId(new Integer(1));

//		user.setName("Erica");

//		user.setSex(new Integer(1));

//		sqlMap.update("updateUser",user);

//		sqlMap.commitTransaction();

		

		sqlMap.startTransaction();

		String name = new String("selina");

		User user = (User)sqlMap.queryForObject("getUser", name);

		

		sqlMap.commitTransaction();

		}catch(Exception ex){

			ex.printStackTrace();

		}

		finally{

			try{

				sqlMap.endTransaction();

			}catch(SQLException ex){

				ex.printStackTrace();

			}

		  

		}

	}

}







//============User.xml =======



<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE sqlMap

	PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN"

	"http://www.ibatis.com/dtd/sql-map-2.dtd">

<sqlMap namespace="User">

	<typeAlias alias="user" type="com.zzr.entiy.User"/>

		<select id="getUser" parameterClass="java.lang.String" resultClass="user">