freejob@163.com
急着用，大家救救急啊
用什么方法都无所谓，最好是源码，拿来就用的
不要再applet写数据库的连接信息，谢谢

关键问题是：
你不能用Applet与数据库直接交流，你必须于写一个Servlet类，让Servlet充当Applet与数据库的连接，我曾经写过一个Applet显示用户访问统计的小程序，不过不是从数据库里提取和存入，而是直接去修改文本文件。不过你自己可以举一反三的嘛：
先是Applet:
package counter;

import java.awt.*;
import java.applet.*;
import java.net.*;
import java.io.*;
import java.awt.event.*;

public class ViewCounter extends Applet{
    Label l;

    public void init(){
        super.init();
        setLayout(new BorderLayout());
        l=new Label("  ", Label.CENTER);
        l.setFont(new Font("Dialog",Font.PLAIN,12));
        add("Center",this.l);
        this.setBackground(Color.black);
        l.setBackground(Color.black);
        l.setForeground(Color.white);
        try{
            String location="http://localhost:8080/bologu/servlet/CounterServlet";
            URLConnection uc=(new URL(/tech-qa-java/location/index.html)).openConnection();
            InputStream fromServlet=uc.getInputStream();
            DataInputStream dis=new DataInputStream(
                                    new BufferedInputStream(fromServlet));
            String s;
            StringBuffer sb=new StringBuffer();
            while((s=dis.readLine())!=null){
                sb.append(s);
            }
            l.setText(sb.toString());
            dis.close();
            fromServlet.close();
        }catch(Exception e){l.setText("error!!");}
        this.l.setAlignment(Label.CENTER);
    }
}
****** Servlet *******
package counter;

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

public class CounterServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";
    private Properties proper=new Properties();
    private int count;

    public void init() throws ServletException {
        super.init();
    }

    protected void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException {
        this.process(request,response);
    }
    protected void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
        this.process(request,response);
    }
    protected void process(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
        response.setContentType("text/html;charset=gb2312");
        DataInputStream in=new DataInputStream(
                                new BufferedInputStream(
                                    new FileInputStream(new File("E:/bologu/bologu/file/visitedcount.props"))));
        proper.load(in);
        if(proper.getProperty("count")!=null) this.count=Integer.parseInt(proper.getProperty("count"));
        this.count++;
        String s="#访问量统计n"+"count="+this.count;
        PrintStream note=new PrintStream(
                            new BufferedOutputStream(
                                new FileOutputStream(new File("E:/bologu/bologu/file/visitedcount.props"))));
        note.println(s);
        String outCount=Integer.toString(this.count);
        PrintWriter out=response.getWriter();
        StringBuffer sb=new StringBuffer(Integer.toString(this.count));
        out.println(sb.toString());
        out.flush();
        in.close();
        note.close();
        out.close();
    }
}