Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javaµ÷Óô洢¹ý³Ì

//µ÷Óô洢¹ý³Ì´ø²Î
            CallableStatement ca = conn.prepareCall("{call Login (?,?)}");
            ca.setString(1,username);
            ca.setString(2,password);
            ca.execute();
//µ÷Óô洢¹ý³Ì´ø·µ»Ø²ÎÊýµÄ
            CallableStatement ca = conn.prepareCall("{call Login (?,?,?)}");
            ca.setString(1,username);
            ca.setString(2,password);
            ca.registerOutParameter(3,java.sql.Types.INTEGER);
            ca.execute();
            int returnOut = ca.getInt(3);
 //µ÷Óô洢¹ý³Ì´ø·µ»ØÖµµÄreturn
            CallableStatement ca = conn.prepareCall("{?=call Login (?,?,?)}");
            ca.setString(2,username);
            ca.setString(3,password);
            ca.registerOutParameter(1,java.sql.Types.INTEGER);
            ca.execute();
            int returnOut = ca.getInt(1);
    //µ÷Óô洢¹ý³Ì·µ»ØÁ½¸ö½á¹û¼¯
            CallableStatement ca = conn.prepareCall("{call Login (?,?,?)}");
            ca.setString(1,usern


Ïà¹ØÎĵµ£º

java native interface(JNI)¼¼Êõ¼òµ¥Ó¦ÓÃ

      ÊÖÉÏÒ»¸öÏîÄ¿ÐèҪͨ¹ýusb¿ÚÈ¥¶ÁÈ¡usbkeyµÄÐÅÏ¢£¬³§¼ÒÌṩµÄÖ»ÓÐC/C++µÄ½Ó¿Ú£¬¶øÖ÷Ó¦ÓÃÊÇjavaµÄ£¬ËùÒÔÐèҪʹÓÃjavaÈ¥µ÷Óö¯Ì¬Á´½Ó¿â£¬ËùÒÔ»¨Á˵ãʱ¼äÑо¿ÁËÏÂJNI¼¼Êõ£¬jdk¶ÔJNI¼¼Êõ·â×°µÃºÜµ½Î»£¬Ê¹ÓÃÆðÀ´·Ç³£¼òµ¥£¬JNI¼¼Êõ×î¹Ø¼ü»¹ÊÇÔÚÓÚjniÊý¾ÝÀàÐͺͱ¾µØÊý¾ÝÀàÐ͵Äת»»¡£Ïȼòµ¥ÂÞÁÐÏÂJNIµ ......

ѧϰJavaÀàµÄÊôÐÔ

ѧϰJavaÀàµÄÊôÐÔ-Î人±±´óÇàÄñ
¡¡¡¡Public¡¢private¡¢protectedÏÔʾÁËÈýÖÖÀàÖеÄÊôÐԺͷþÎñµÄÀàÐÍ£¬publicÊÇ¿ÉÒÔËæÒâ·ÃÎʵġ¢privateÊÇÍâ½ç²»ÄÜ·ÃÎʵÄ(ÏÔʾÁËÊý¾ÝµÄ·â×°ÐÔ)¡¢protected˵Ã÷Êý¾ÝÊÇÊܱ£»¤µÄ¡£ÏÂÃæ¾ÍÀ´Ïêϸ½²ÊöÒ»ÏÂÕâÈý¸ö¾¿¾¹ÓÐʲôÇø±ð¡£
¡¡¡¡Ê×ÏÈÒªÁ˽âһϰüµÄ¸ÅÄî¡£ÓÐÈô¸É¸öÀ࣬ËüÃÇÏ໥֮¼äÓÐÒ»¶¨µÄ¹ØÏ ......

JAVAÁ¬½ÓACCESS£¬SQL Server,MySQL,Oracle

import java.sql.*;
/*
* JAVAÁ¬½ÓACCESS£¬SQL Server,MySQL,OracleÊý¾Ý¿â
*
* */
public class JDBC {
  
public static void main(String[] args)throws Exception {
  
   Connection conn=null;
  
       //====Á¬½ÓACCESSÊý¾Ý¿â ......

java ±È½ÏÆ÷µÄʹÓÃ

¶ÔÓÚÒ»¸öʵÏÖÁËComparable½Ó¿ÚµÄ¶ÔÏ󣬸ýӿÚÖ»ÄÜʵÏÖÒ»´Î¡£Èç¹ûÔÚÒ»¸ö¼¯ºÏÀïÃæÐèҪʹÓÃidÅÅÐò£¬¶øÔÚÁíÍâÒ»¸ö¼¯ºÏÀïÐèÒª°´Ãû×ÖÅÅÐòÕâʱ¾ÍÐèÒªÔÚÕâ¸ö¼¯ºÏÀïÃæÖ¸¶¨±È½ÏÆ÷¡£
Comparable½Ó¿ÚÉùÃ÷ÁËcompareTo(Object o)·½·¨
Comparator ½Ó¿ÚÉùÃ÷ÁËcompare(Object o1,Object o2)·½·¨
eg:
µÚÒ»¸öÊ÷¼¯ÊÇ°´ÕÕ¶ÔÏóĬÈϵÄidÅÅÐò£¬µ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ