碧玉例外occure到SQLServer的2008 R2

Question

<%@page import="java.sql.*"%> 

<form name="form" method="post" > 
<b>Select a country:</b> </td> 
<select name="sel"><option value=""><---Select---></option> 
<% 
Class.forName("net.sourceforge.jtds.jdbc.Driver").newInstance(); 


Connection con=DriverManager.getConnection("jdbc:jtds:sqlserver://subversion/sql2k8:1433/career","sa","Cloud#123"); 

PreparedStatement psmnt = con.prepareStatement("select * from country "); 
ResultSet results = psmnt.executeQuery(); 
while(results.next()){ 
String name = results.getString(2); 
String id = results.getString(1); 
%><option value="<%= name %>"><%=name%></option> 
<%} results.close(); psmnt.close(); %> 
</select><br> 

---

和自帶的錯誤： -

org.apache.jasper.JasperException: An exception occurred processing JSP page /1.dropdown_insert.jsp at line 13 

---

10: 
11: 
12: 
13: Connection con=DriverManager.getConnection("jdbc:jtds:sqlserver://subversion/sql2k8:1433/career","sa","Cloud#123"); 
14: 
15: PreparedStatement psmnt = con.prepareStatement("select * from country "); 
16: ResultSet results = psmnt.executeQuery(); 

---

堆棧跟蹤：

org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:519) 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 

Answer 1

1. 檢查連接字符串 - jdbc:jtds:sqlserver：// subversion/sql2k8:1433/career。
2. 使用try-catch block和printstacktrace獲取正確的錯誤消息。