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public static boolean validateEmail(String email){
//Pattern pattern = Pattern.compile("[0-9a-zA-Z]*.[0-9a-zA-Z]*@[a-zA-Z]*.[a-zA-Z]*", Pattern.LITERAL);
if(email == null){
return false;
}

//ÑéÖ¤¿ªÊ¼


//²»ÄÜÓÐÁ¬ÐøµÄ.
if(email.indexOf("..") != -1){
return false;
}

//±ØÐë´øÓÐ@
int atCharacter = email.indexOf("@");
if (atCharacter == -1) {
return false;
}

//×îºóÒ»¸ö.±ØÐëÔÚ@Ö®ºó,ÇÒ²»ÄÜÁ¬Ðø³öÏÖ
if(atCharacter > email.lastIndexOf('.') || atCharacter+1 == email.lastIndexOf('.')){
return false;
}

//²»ÄÜÒÔ.,@½áÊøºÍ¿ªÊ¼
if (email.endsWith(".") || email.endsWith("@") || email.startsWith(".") || email.startsWith("@")) {
return false;
}

return true;
}

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java UDP´«Êä

TCPͨ¹ý ServerSocket ºÍ Socket À´ÊµÏÖ´«Êä
UDPÖ÷Ҫͨ¹ý DatagramSocket ºÍ DatagramPacket À´Íê³É´«Êä
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public class UdpServer
{
private DatagramSocket server;
private DatagramPacket packet;
private byte[] b;
private String str;
public UdpServer()
{
Init();
} ......

tomcatÁ¬½Ó³ØµÄÅäÖà Java¿ª·¢¼°±à³Ì˼Ïë


<Resource name="jdbc/testDB" auth="Container"
type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/testDB">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<parameter>
< ......

Java¶Ô»°Öð×ÖÏÔʾʵÏÖ(½«ÎÄ×ÖдÔÚͼƬÉÏ)


import java.awt.Color;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Panel;
import java.awt.image.BufferedImage;
import java.io.File;
import java.awt.Toolkit;
/** *//**
*
* Title: LoonFramework
*
*
* Description:JA ......

java Á¬½Ó mysql

µ±È»£¬Ê×ÏÈÒª°²×°ÓÐJDK(Ò»°ãÊÇJDK1.5.X)¡£È»ºó°²×°MySQL£¬ÕâЩ¶¼±È½Ï¼òµ¥£¬¾ßÌå¹ý³Ì¾Í²»ËµÁË¡£ÅäÖúÃÕâÁ½¸ö
»·¾³ºó£¬ÏÂÔØJDBCÇý¶¯mysql-connector-java-5.1.5.zip£¨http://www.ntu-w.lkams.kernel.org/pub/MySQL/Downloads/Connector-J/mysql-connector-java-5.1.5.zip£©¡£È»ºó½«Æä½âѹËõµ½ÈÎһĿ¼¡£ÎÒÊǽâѹµ½DÅÌ£¬È»ºó½ ......
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