om.microsoft.sqlserver.jdbc.SQLServerException: 到主机的TCP/IP 连接失败。java.net.ConnectException: Connectio

最近用java连接Sql server 2005数据库时，遇到了如上问题，错误提示具体如下：

com.microsoft.sqlserver.jdbc.SQLServerException: 到主机  的 TCP/IP 连接失败。 java.net.ConnectException: Connection refused: connect
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.fileUD.javabean.DB.getCon(DB.java:32)
at com.fileUD.javabean.DB.getStmed(DB.java:54)
at com.fileUD.javabean.DB.CUD(DB.java:79)
at org.apache.jsp.up.doup_jsp._jspService(doup_jsp.java:95)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)

通过查找资料，发现如下方法，希望对你有帮助(转载自：http://blog.csdn.net/ningboqingniao/article/details/4284604)

【解决方法】

(1) 检查TCP/IP有没有启动。

(2) 检查TCP端口对不对。Sql server的端口不一定就是1433。 [b]******************************************************************************************************************[/b] 【TCP端口具体设置办法】：打开SQL Server Configuartion Manager（我是SQLEXPRESS版本），左边窗口扩展SQL SERVER 2005 网络配置, 选择SQLEXPRESS 的协议(你的名字不一定是SQLEXPRESS), 右边窗口中双击TCP/IP, 弹出窗口中顶部TAB点”IP 地址”, 把IPA11里面”TCP 动态端口”的值去掉，设上 “TCP 端口” 的端口号值就可以了。（也可以直接取”TCP 动态端口”的值，我个人认为设置一下为好）