JDBC基本操作，配置数据库连接，并插入一行数据

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


@WebServlet("/web")
public class web extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    
    public web() {
        super();
        // TODO Auto-generated constructor stub
    }

	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.getWriter().append("Served at: ").append(request.getContextPath());
	}

	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

import java.sql.*;
public class jdbcTest {
    static Connection con;
    static Statement st;
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        String driverName="com.microsoft.sqlserver.jdbc.SQLServerDriver";
        String dbURL="jdbc:sqlserver://localhost:1433;DatabaseName=exam";
        String userName="sa";
        String userPwd="sa123qwe";
        System.out.print("连接成功");
        String sql="insert into name(ID,name)values('1','例子')";
        try
        {
        Class.forName(driverName); 
        con=DriverManager.getConnection(dbURL,userName,userPwd);
        st=con.createStatement();
        st.executeUpdate(sql);
        }catch(Exception e)
        {
        e.printStackTrace();
        }
        }
    }

使用的软件是MyEclipse,运行成功。成功配置Tomcat并运行一个简易窗口