Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

java³¬¼òµ¥,³¬¼¶ÊµÓÃÑéÖ¤Âë

1.   ÑéÖ¤Âë(2)
dsnaValidateCode.jar
dsnaValidateCode_src.rar
ValidateCode.java ÑéÖ¤ÂëÉú³ÉÀà
Java´úÂë
package cn.dsna.util.images;   
  
import java.awt.Color;   
import java.awt.Font;   
import java.awt.Graphics2D;   
import java.awt.image.BufferedImage;   
import java.io.FileOutputStream;   
import java.io.IOException;   
import java.io.OutputStream;   
import java.util.Random;   
  
import javax.imageio.ImageIO;   
/**  
 * ÑéÖ¤ÂëÉú³ÉÆ÷  
 * @author dsna  
 *  
 */  
public class ValidateCode {   
    // Í¼Æ¬µÄ¿í¶È¡£   
    private int width = 160;   
    // Í¼Æ¬µÄ¸ß¶È¡£   
    private int height = 40;   
    // ÑéÖ¤Âë×Ö·û¸öÊý   
    private int codeCount = 5;   
    // ÑéÖ¤Âë¸ÉÈÅÏßÊý   
    private int lineCount = 150;   
    // ÑéÖ¤Âë   
    private String code = null;   
    // ÑéÖ¤ÂëͼƬBuffer   
    private BufferedImage buffImg=null;   
    private char[] codeSequence = { 'A','B','C','D','E','F','G', 'H','I','J','K','L','M','N','P','Q','R','S','T','U','V','W','X','Y','Z','1','2','3','4','5','6','7','8','9'};   
    public  ValidateCode() {   
   &n


Ïà¹ØÎĵµ£º

AndroidÖи÷ÖÖJAVA°üµÄ¹¦ÄÜÃèÊö

ÔÚAndroidµÄÓ¦ÓóÌÐò¿ª·¢ÖУ¬Í¨³£Ê¹ÓõÄÊÇJAVAÓïÑÔ£¬³ýÁËÐèÒªÊìϤJAVAÓïÑԵĻù´¡ÖªÊ¶Ö®Í⣬»¹ÐèÒªÁ˽âAndroidÌṩµÄÀ©Õ¹µÄJAVA¹¦ÄÜ¡£
ÔÚÒ»°ãµÄJAVAÓ¦ÓÃÖУ¬Èç¹ûÐèÓÃÒýÓûù´¡Àà¿â£¬Í¨³£ÐèҪʹÓÃÈçϵķ½Ê½£º
import
javax.swing.*;
ÒÔÉÏ´úÂë±íʾÁËÒýÓÃJAVAµÄGUI×é¼þSwing,javax.swing¼´JAVAÖеÄÒ»¸ö°ü¡£
androidÌṩһР......

Êý¾Ý¿âResultSetÏê½â£¨java£©

ÕâÆªÎÄÕ²¢Ã»Óиø³öÈçºÎʹÓÃResultSetµÄ¾ßÌåÀý×Ó£¬Ö»ÊÇ´ÓResultSetµÄ¹¦ÄÜÐÔÉϽøÐÐÁËÏêϸµÄ½²Êö¡£Ï£ÍûÕâÆªÎÄÕ¶Դó¼ÒÀí½âResultSetÄܹ»ÓÐËù°ïÖú¡£ÏÂÃæ¾ÍÊÇÕâÆªÎÄÕµľßÌåÄÚÈÝ¡£
         ½á¹û¼¯(ResultSet)ÊÇÊý¾ÝÖвéѯ½á¹û·µ»ØµÄÒ»ÖÖ¶ÔÏ󣬿ÉÒÔ˵½á¹û¼¯ÊÇÒ»¸ö´æ´¢²éѯ½á¹ûµÄ¶ÔÏó£ ......

java ÈçºÎÅäÖû·¾³±äÁ¿

ÅäÖÃjava »·¾³±äÁ¿ºÜ¼òµ¥ £º
Ê×ÏÈ:
1¡¢Ë«»÷“ÎҵĵçÄÔ”
2¡¢Ë«»÷“¿ØÖÆÃæ°å”
3¡¢Ë«»÷“ϵͳ”
4¡¢µã»÷“¸ß¼¶”Ñ¡Ï£¬
5¡¢µã»÷“»·¾³±äÁ¿”°´Å¥
Æä´Î:
1¡¢±äÁ¿Ãû: path
±äÁ¿Öµ: C:\jdk1.6.0\bin;
2¡¢±äÁ¿Ãû: classpath
±äÁ¿Öµ: .;%JAVA_HOME%\lib\ ......

JavaµÄ¶à½ø³ÌÔËÐÐģʽ·ÖÎö

Ò»°ãÎÒÃÇÔÚjavaÖÐÔËÐÐÆäËüÀàÖеķ½·¨Ê±£¬ÎÞÂÛÊǾ²Ì¬µ÷Ó㬻¹ÊǶ¯Ì¬µ÷Ó㬶¼ÊÇÔÚµ±Ç°µÄ½ø³ÌÖÐÖ´Ðеģ¬Ò²¾ÍÊÇ˵£¬Ö»ÓÐÒ»¸öjavaÐéÄâ»úʵÀýÔÚÔËÐС£¶øÓеÄʱºò£¬ÎÒÃÇÐèҪͨ¹ýjava´úÂëÆô¶¯¶à¸öjava×Ó½ø³Ì¡£ÕâÑù×öËäȻռÓÃÁËһЩϵͳ×ÊÔ´£¬µ«»áʹ³ÌÐò¸ü¼ÓÎȶ¨£¬ÒòΪÐÂÆô¶¯µÄ³ÌÐòÊÇÔÚ²»Í¬µÄÐéÄâ»ú½ø³ÌÖÐÔËÐеģ¬Èç¹ûÓÐÒ»¸ö½ø³Ì·¢Éú ......

JAVA³£ÓòÙ×÷Óï¾ä ¸öÈË×ܽá

·if ((ICO2 = getInitParameter("ICO2")) == null)
      ICO2 = "images/commend.gif";
·ActionContext ctx = ActionContext.getContext();
  HttpServletRequest request = (HttpServletRequest) ctx.get(ServletActionContext.HTTP_REQUEST);  ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ