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package com.vogoal.test;
import java.awt.Color;
import
java.awt.Graphics;
import java.awt.image.BufferedImage;
import
java.io.File;
import java.io.IOException;
import
javax.imageio.ImageIO;
/**
* @author SinNeR@blueidea.com
* create a
image
*/
public class HelloImage {
public static void main(String[]
args){
BufferedImage image = new BufferedImage(80,
25,
BufferedImage.TYPE_INT_RGB);
Graphics g =
image.getGraphics();
g.setColor(new Color(255,255,255));
g.fillRect(0, 0, 80, 25);
g.setColor(new Color(0,0,0));
g.drawString("HelloImage",6,16);
g.dispose();
try{
ImageIO.write(image, "jpeg", new
File("C:\\helloImage.jpeg"));
}catch(IOException e){
e.printStackTrace();
}
}
}
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½¨Á¢BufferedImage¶ÔÏó¡£Ö¸¶¨Í¼Æ¬µÄ³¤¶È¿í¶ÈºÍÉ«²Ê¡£
BufferedImage image = new
BufferedImage(80,25,BufferedImage.TYPE_INT_RGB);
È¡µÃGraphics¶ÔÏó£¬ÓÃÀ´»æÖÆͼƬ¡£
Graphics g = ima
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<script language="Javascript" src="js/jquery.js" charset="gb2312"></script> ......
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Èý¡¢Àí½âcookie» ......
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<%@ page language="java" import="java.util.*" import="java.sql.*" pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+re ......
¶¨ÒåÒ»¸ösession±äÁ¿
session.setAttribute("user_name","joan");
¶ÁÈ¡Ò»¸ösessionµÄÖµ:
String your_name=session.getAttribute("user_name");
ÅжÏÒ»¸ösessionÊÇ·ñ´æÔÚÓ¦ÓÃ:
if((String)session.getAttribute("user_id")==null)
{
out.print("yes");
}
else
{
out.print("no");
}
дÈëÒ»¸öcook ......
<%@ page contentType="text/html; charset=gb2312" %>
<%@ page language="java" %>
<%@ page import="java.sql.*" %>
<%
//Çý¶¯³ÌÐòÃû
String driverName="org.gjt.mm.mysql.Driver";
//Êý¾Ý¿âÓû§Ãû
String userName="root";
//ÃÜÂë
S ......