机器环境
XP SP2，Tomcat 5.5，jtds，SQL SERVER 2000。
问题
JTDS连接SQL SERVER 2000报错:
javax.servlet.ServletException: Network error IOException: Connection refused: connect
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
org.apache.jsp.testMssql3_jsp._jspService(testMssql3_jsp.java:118)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:298)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
解决方案
升级SQL SERVER 2000 SP3A的补丁！
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