使用JDBC连接MSSQL数据库中2000/2005/2008的区别

// Java Document

package com.job36.test;

import java.sql.*;

public class connsql{

//1、连接SqlServer2000

//private String sDBDriver="com.microsoft.jdbc.sqlserver.SQLServerDriver";

//private String url="jdbc:microsoft:sqlserver://localhost:1433;......";



//2、连接SqlServer2005

//driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver

//url=jdbc:sqlserver://localhost:1433;......



//3、连接SqlServer2008

//driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver

//url=jdbc:sqlserver://192.168.3.29:1433;......



//以下为2008连接，事实上和2005连接一样的。都是用的jdbc1.2来完成的。

private String sDBDriver="com.microsoft.sqlserver.jdbc.SQLServerDriver";

private String url="jdbc:sqlserver://192.168.3.29:1433;DatabaseName=crm";//Notice:DatabaseName

private String user="sa";

private String password="xxxx";//Notice: user and password.

Connection conn;

Statement stmt;

ResultSet rs;

public connsql()

{

try{

Class.forName(sDBDriver);

}

catch(java.lang.ClassNotFoundException e){

System.err.println("connsql():"+e.getMessage());

}

}

public void executeInsert(String sql){

try{

conn=DriverManager.getConnection(url,user,password);

stmt=conn.createStatement();

stmt.executeUpdate(sql);

stmt.close();

conn.close();

}catch(SQLException ex){

System.err.println("connsql.executeUpdate:"+ex.getMessage());

}

}

public ResultSet executeQuery(String sql)

{

try

{

conn = DriverManager.getConnection(url,user,password);

stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);

rs = stmt.executeQuery(sql);

}

catch(SQLException ex)

{

System.err.println("connsql.executeQuery:"+ex.getMessage());

}

return rs;

}

/* public ResultSet executeQuery(String sql)

{

try{

conn=DriverManager.getConnection (url,user,password);

stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);

rs=stmt.executeQuery(sql);

stmt.close();////////////////////////////I changed;

conn.close();////////////////////////////..........

}catch(SQLException ex){

System.err.println("connsql.executeQuery:"+ex.getMessage());

}

return rs;

}

*/ public void executeUpdate(String sql){

try{

conn=DriverManager.getConnection(url,user,password);

stmt=conn.createStatement();

stmt.executeUpdate(sql);

stmt.close();

conn.close();

}catch(SQLException ex){

System.err.println("connsql.executeQuery:"+ex.getMessage());

}

}

public void executeDelete(String sql){

try{

conn=DriverManager.getConnection(url,user,password);

stmt=conn.createStatement();

stmt.executeUpdate(sql);

stmt.close();

conn.close();

}catch(SQLException ex){

System.err.println("connsql.executeDelete:"+ex.getMessage());

}

}

public void closeStmt(){

try{

stmt.close();

}

catch(SQLException e){

e.printStackTrace();

}

}

public void closeConn(){

try{

conn.close();

}catch(SQLException e){

e.printStackTrace();

}

}



public static void main(String[] args) {

try {

connsql conn = new connsql();

ResultSet rs = conn.executeQuery("select top 10 * from muser");

while(rs.next())

System.out.println(rs.getString(1));

rs.close();

conn.closeStmt();

conn.closeConn();

} catch (SQLException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

}

}



}