Servlet连sql server2005

尼玛，老子郁闷了。自学了点servlet 写了简单的连接sql server2005的例子，老是报错。

最后花了2个小时，总结一下经验：

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环境：tomcat-6.0  JCreator编辑器

             sql server 2005

1. 准备4个jar包，msbase.jar, mssqlserver.jar, msutil.jar, sqljdbc.jar(sqlserver2005驱动包，微软官网有)

COPY到以下目录，D:\tomcat6\apache-tomcat-6.0.35\lib

2. 配置SQL SERVER 2005 TCP/IP登录，详见：http://blog.csdn.net/indexman/article/details/8502862

3. 修改SQL SERVER 2005 中"sa" 用户密码，注意密码要复杂点（字母+特殊字符+数字，如：dylan$123），并启用该用户：

4 .配置以SQL Server 和Windows身份验证模式, 并测试以sa登录：

5. 配置完以后，贴出以下示例代码:

package com.dylan;

import javax.servlet.http.*;
import java.io.*;
import java.sql.*;

public class LoginProcess extends HttpServlet{
    
    public void doGet(HttpServletRequest req, HttpServletResponse res){
        
        Connection ct = null;
        Statement  sm = null;
        ResultSet rs = null;
        
        try{
            
            //receive username&password
            String name = req.getParameter("username");
            String pass = req.getParameter("password");
            //check the username&password
            
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            ct = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=xudb","sa","admin$123");
            sm = ct.createStatement();
            rs = sm.executeQuery("select top 1 * from users where username='"+ name
                                   +"' and password='"+ pass +"'");
            
            
            
            
            if(rs.next()) {
                PrintWriter pw = res.getWriter();
                pw.println("Error username or password！");
                HttpSession hs = req.getSession(true);
                hs.setMaxInactiveInterval(10);
                hs.setAttribute("pass","ok");
                
                res.sendRedirect("wel?username="+name+"&password="+pass);
            }
            else{
                
                PrintWriter pw = res.getWriter();
                //pw.println("Error username or password！");
                res.sendRedirect("login");
                
                
            }
        }
        catch(Exception ex){
            ex.printStackTrace();
         }
         
         finally{
             try{
                 if(rs!=null){
                     rs.close();
                 }
                 if(sm!=null){
                     sm.close();
                 }
                 if(ct!=null){
                     ct.close();
                 }
                 
             }
             catch(Exception ex){
                   ex.printStackTrace();
             }
         }
    }       
    
    public void doPost(HttpServletRequest req, HttpServletResponse res){
        
        this.doGet(req, res);
    }
}

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present  by  dylan.