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

flexͨ¹ýblazedsÓëjavaʵÏÖÔöɾ¸Ä²é

ÓõÄÊÇMySQLÊý¾Ý¿â¡£
1£¬½¨Ò»¸öuserdb¿â£¬ÔÙ½¨userinfo±í£¬×ֶΣºid(int),username(varchar),password(varchar)¡£
create database userdb;
use userdb;
create table userinfo(
id int(10) not null auto_increment,
username varchar(20),
password varchar(20),
primary key(id));
2£¬DBConnection.java
package com.datainfo;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class DBConnection {
public static Connection getConnection() throws ClassNotFoundException,
SQLException {
Connection conn = null;
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/userdb";
String username = "root";
String password = "mysql";
Class.forName(driver);
conn = DriverManager.getConnection(url, username, password);
return conn;
}
}
3£¬User.java
package com.datainfo;
public class User {
private int id;
private String username;
private String password;
public User() {

}
/**
* @return the id
*/
public int getId() {
return id;
}
/**
* @param id
* the id to set
*/
public void setId(int id) {
this.id = id;
}
/**
* @return the username
*/
public String getUsername() {
return username;
}
/**
* @param username
* the username to set
*/
public void setUsername(String username) {
this.username = username;
}
/**
* @return the password
*/
public String getPassword() {
return password;
}
/**
* @param password
* the password to set
*/
public void setPassword(String password) {
this.password = password;
}
}

4£¬UserDAO.java
package com.datainfo;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import com.datainfo.DBConnection;
public class UserDAO {
public ArrayList getUserList() throws ClassNotFoundExcep


Ïà¹ØÎĵµ£º

Ubuntu java¿ª·¢»·¾³´î½¨

jdkµÄ°²×°
1¡¢´Ójava.sun.com¸ãÏÂjdk×îеİ汾£¬Ò»°ãÎÒÃÇÓÃ1.6°æ±¾µÄ£¬ÏÂÔØbin¸ñʽµÄjdk£¬¼Ù¶¨ÏÂÔØµÄÎļþÃûΪjdk-6u20-linux-i586.bin¡£
2¡¢chmod u+x jdk-6u20-linux-i586.bin;È»ºó  ./jdk-6u20-linux-i586.bin ½âѹ£¬¼Ù¶¨½âѹºóµÄÎļþ¼ÐΪ jdk1.6_20;
3¡¢ÔÚ/usr/local/  ½¨Á¢Ò»¸öinstallµÄĿ¼£¬ È»ºó°Ñ½âÑ ......

smtp of java mail

send mail use smtp .u can send text or html, send to many peoples if u have a email user and pwd and the smtp of the email which u use.
package org.lc.smtp;
import java.io.IOException;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.mail.Message;
import javax.mai ......

java´ò¿ª±¾µØÎļþ

 try {
   Runtime.getRuntime().exec("C:\\xxx.exe");
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } ......

Java ×¢Ê͹淶

×¢Ê͵ÄÔ­Ôò 1¡¢ ×¢ÊÍÐÎʽͳһ ÔÚÕû¸öÓ¦ÓóÌÐòÖУ¬Ê¹ÓþßÓÐÒ»ÖµıêµãºÍ½á¹¹µÄÑùʽÀ´¹¹Ôì×¢ÊÍ¡£Èç¹ûÔÚÆäËûÏîÄ¿×é·¢ÏÖËûÃǵÄ×¢Ê͹淶ÓëÕâ·ÝÎĵµ²»Í¬£¬°´ÕÕËûÃǵĹ淶д´úÂ룬²»ÒªÊÔͼÔڼȳɵĹ淶ϵͳÖÐÒýÈëеĹ淶¡£ 2¡¢ ×¢Ê͵ļò½à ÄÚÈÝÒª¼òµ¥¡¢Ã÷ÁË¡¢º¬Òå׼ȷ£¬·ÀÖ¹×¢Ê͵ĶàÒåÐÔ£¬´íÎóµÄ×¢ÊͲ»µ«ÎÞÒæ·´¶øÓк¦¡£ ......

JavaÎÊÌâ¾­µä32ÎÊ

JavaÎÊÌâ¾­µä32ÎÊ
    µÚÒ»£¬Ì¸Ì¸final£¬ finally£¬ finalizeµÄÇø±ð¡£
    µÚ¶þ£¬Anonymous Inner Class £¨ÄäÃûÄÚ²¿Àࣩ ÊÇ·ñ¿ÉÒÔextends£¨¼Ì³Ð£©ÆäËüÀ࣬ÊÇ·ñ¿ÉÒÔimplements£¨ÊµÏÖ£©interface£¨½Ó¿Ú£©£¿
    µÚÈý£¬Static Nested Class ºÍ Inner ClassµÄ²»Í¬£¬ËµµÃÔ½¶àÔ½ºÃ£¨ÃæÊÔÌâÓе ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ