sqlserver提示The Network Adapter could not establish the con
sqlserver提示The Network Adapter could not establish the connection这种错误是说明SQLSERVER 不能远程连接,下面我们来看解决方法。
1 检查SQL SERVER 是否允许远程访问.
具体步骤:
1)打开”企业管理器”,打开控制台根目录>SQL Server 组>数据库
2)在相应”数据库”上单击右键,选择”属性”
3)选择”连接”选项卡,检查”远程服务器连接”下,RPC服务是否选择.
2 使用telnet IP地址 1433,系统是否提示连接出错
比如 telnet 127.0.0.1 1433
如果出现黑屏,这端口正常
如系统提示出错
检查是否防火墙屏蔽了SQL SERVER 或 java IDE 的网络访问端口
如果是,关闭防火墙,重新启动SQL SERVER和java IDE,进行测试,
如果系统仍提示上述错误,尝试下列步骤
3 检查SQL SERVER 端口号及是否启用了TCP/IP协议
具体步骤:
1)打开”企业管理器”,打开控制台根目录>SQL Server 组>数据库
2)在相应”数据库”上单击右键,选择”属性”
3)选择”常规”选项卡,点击”网络配置”,如启用的协议中无”TCP/IP协议”将其加入
4)选择”TCP/IP协议”,点击”属性”,检查其端口号是否为1433
5)如端口号为1433将其修改为其它端口号,修改jdbc连接语句,将端口号同样改为新启用的端口号,如jdbc:microsoft:sqlserver://server_name:1400(假设新端口号为 1400)
4 以下的方法你每种的去试试:
1)检查一下sql server的connection有没有full.
2)如果是认证的问题.
可到sql enterprice manager->指定server->内容->安全性. 把验证改为 SQL server 及 windows.
3)点选属性检查一下port是否正确.
4)执行%MSSQL_HOME%/80/Tools/Binn/SVRNETCN.exe
把TCP/IP启用.
5)关掉防火墙.
6)把SQL server update到sp4:
http://www.microsoft.com/downloads/details.aspx?displaylang=zh-cn&FamilyID=8E2DFC8D-C20E-4446-99A9-B7F0213F8BC5
经我验证,一般升级到sp4就好用了!
注意升级的方法,不是双击运行就可以了,这个SP4是解压缩程序,你要指定一个目录,推荐c:/,解压缩后,需要转到那个目录运行里面的setup.bat才是真正的安装。不知道为何微软不直接调用那个。搞不懂!!!
检查方法如下:
执行 如下的SQL语句
print @@version
如果是SP4 应该出现如下的版本号
Microsoft SQL Server 2000 – 8.00.2039 (Intel X86)
May 3 2005 23:18:38
Copyright (c) 1988-2003 Microsoft Corporation
请注意其中的 8.00.2039
其它版本的信息对照如下
SQL Server 2000 版本和级别
@@VERSION
产品级别
SQL Server 2000 原始版本
8.00.194
RTM
Database Components SP1
8.00.384
SP1
Database Components SP2
8.00.534
SP2
Database Components SP3、SP3a
8.00.760
SP3
MSDE 2000 Release A
8.00.760
SP3
Database Components SP4
8.00.2039
SP4
7)最后,请一定注意JDBC2.0和3.0的区别 http://www.java2000.net/viewthread.jsp?tid=367
8) 在 SQL Server 2005 里面,如果出现
到主机 的 TCP/IP 连接失败。 java.net.ConnectException: Connection refused: connect
sqlserver2005默认情况下是禁用了tcp/ip连接。启动tcp/ip连接的方法,
打开 /Microsoft SQL Server 2005/配置工具/目录下的SQL Server Configuration Manager,选择mssqlserver协议,
然后右边窗口有个tcp/ip协议,然后启动它,把sqlserver服务停了,然后在启动。问题就解决了

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