java连接sql server 2008数据库代码

java连接sqlserver 2008数据库的步骤：

1.到微软官方下载jdbc 并解压，得到sqljdbc.jar和sqljdbc4.jar,由于使用的是jdk1.7，所以使用sqljdbc4.jar,

2.复制文件sqljdbc4.jar到jdk目录\jdk1.7.0\jre\lib\ext下。

配置系统变量classpath 变量路径 d:\java\jdk1.7.0\jre\lib\ext\sqljdbc4.jar

测试程序：

 import java.sql.*;

 public class t1{

       public static void main(string []args)

     {                             

     try{                                                                    

      class.forname("com.microsoft.sqlserver.jdbc.sqlserverdriver");                                   

      system.out.println("成功加载sql驱动程序");                              

         }                              

    catch(exception e){

          system.out.println("找不到sql驱动程序");                                                            

          }                             

    system.out.println("hello huuuu!!");                         

   }

}

 

3.开始-〉程序-〉sql  server  2008-〉配置工具-〉sql server configuration manager。启动sql  2008服务。点击  sql  server2008网络配置节点，并选中”sqlserver的协议“节点。
启用tcp/ip协议，将ip地址中的ipall tcp端口设置为1433，然后到服务中重启 sqlserver（很重要啊。。。）。

测试程序：

import java.sql.*; public class t2{

     public static void main(string []args)

     {                             

 try{                                                                    

        class.forname("com.microsoft.sqlserver.jdbc.sqlserverdriver");                                                                               system.out.println("成功加载sql驱动程序");                             

    }                               

   catch(exception e){

            system.out.println("找不到sql驱动程序");                                                             

         }                                                            

   try{                                                                    

       connectioncon=drivermanager.getconnection"jdbc:sqlserver://localhost:1433; 

              databasename=sqltest",         "sa"，"123");                                                                                                                                                                                                                                                                                       

 

        statement stmt = con.createstatement();                                                                                                                           system.out.println("数据库连接成功");                                  

     }                                 

    catch(exception e){                                                                                             

           system.out.println("数据库连接失败");                                                                                                                                                }                           

 }

}

注意上述程序中的databasename,需要先在数据库中创建名为sqltest的数据库。然后再开始连接。

好了，经过上述的配置和测试，以后就可以用java对数据库进行操作。