JavaÍøÂç±à³Ì1
InetAddressÀà´ú±íIPµØÖ·£¬ÓÐÁ½¸ö×ÓÀ࣬Inet4Address£¬Inet6Address´ú±íIPV4ºÍIPv6£¬Ã»Óй¹Ôì·½·¨£¬µ«ÊÇÌṩ¸öÁËÁ½¸ö¾²Ì¬·½·¨À´»ñÈ¡InetAddressʵÀý£ºgetByName(String host):¸ù¾ÝÖð¾ä»ñÈ¡¶ÔÓ¦µÄInetAddress¶ÔÏó£»getByAddress(byte[]addr):¸ù¾ÝÔʼIPµØÖ·À´»ñÈ¡¶ÔÓ¦µÄInetAddress¶ÔÏó.
String getCanonicalHostName()£º»ñÈ¡´ËIPµØÖ·µÄÈ«ÏÞ¶¨ÓòÃû
String getHostAddress():·µ»Ø¸ÃInetAddressʵÀý¶ÔÓ¦µÄIPµØÖ·×Ö·û´®
String getHostName():»ñÈ¡´ËIPµØÖ·µÄÖ÷»úÃû
Boolean isReachable():²âÊÔÊÇ·ñ¿ÉÒÔµ½´ï¸ÃµØÖ·
URLDecoder ºÍURLEncoderÓÃÓÚÆÕͨ×Ö·û´®ºÍapplication/x-www-form-urlencoded MIME×Ö·û´®Ö®¼äµÄÏ໥ת»»¡£
URLDecoderµÄdecode(String s,String enc)¾²Ì¬·½·¨£¬Ëû¿ÉÒÔ½«¿´ÉÏÈ¥ÂÒÂëµÄÌØÊâ×Ö·ûת»»³ÉÆÕͨ×Ö·û´®
URLEncoderµÄencode(String s,String enc)¾²Ì¬·½·¨£¬Ëû¿ÉÒÔ½«ÆÕͨ×Ö·û´®×ª»»³Éapplication/x-www-form-urlencoded MIME×Ö·û´®
URLºÍURLConnection
URL url=new URL("http://doc.mysql.cn/download/chm/refman-5.1.mysql.tar.gz");
URLConnection conn=url.openConnection();
Ò»¸öÏÂÔØ×ÊÔ´µÄÏ̳߳ÌÐò
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
public class DownThread extends Thread {
// ¶¨Òå×Ö½ÚÊý×éµÄ³¤¶È
private final static int BUFFER_LEN = 32;
// ¶¨ÒåÏÂÔØµÄÆðµã
private long start;
// ¶¨ÒåÏÂÔØµÄ½áÊøµã
private long end;
// ¶¨ÒåÏÂÔØ×ÊÔ´¶ÔÓ¦µÄÊäÈëÁ÷
private InputStream is;
// ½«ÏÂÔØµÄ×Ö½ÚÊä³ö
private RandomAccessFile raf;
public DownThread(long start, long end, InputStream is,
RandomAccessFile raf) {
super();
//Êä³ö¸ÃÏ̸߳ºÔðÏÂÔØµÄ×Ö½ÚλÖÃ
System.out.println(start+"---->"+end);
this.start = start;
this.end = end;
this.is = is;
this.raf = raf;
}
publi
Ïà¹ØÎĵµ£º
create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ
......
ExcelµÄbook±£»¤ÊǺܳ£Óõģ¬Ö÷ÒªÊDz»ÏëÈñðÈËÐÞ¸ÄExcelµÄʱºòÓá£ÕâÑùÄܹ»±ÜÃâ¶ñÒâËæ±ãÐÞ¸ÄÊý¾Ý£¬Ìá¸ßÊý¾ÝµÄ¿ÉÐжȡ£
ÄÇôJAVAÀ´ÊµÏÖÉèÖÃbook±£»¤Ôõô×öÄØ£¿
²éÕÒÁ˼¸ÖÖ³£¼ûµÄJAVA²Ù×÷ExcelµÄһЩ°ü£¬´óÌå½á¹ûÈçÏ£º
1. POI
&nbs ......
javaÊÇÒ»ÖÖÃæÏò¶ÔÏóµÄ±à³ÌÓïÑÔ£¬ÔõôÀí½â£¿
javaдµÄ³ÌÐò¶¼ÊÇÃæÏò¶ÔÏóµÄÂð£¿
Äã¿ÉÄÜÈÏΪ£¬javaÉúÀ´¾ÍÊÇÃæÏò¶ÔÏóµÄ¡£
ÇÒ¿´£º
package cn.nileader.calculate_OPP;
import java.util.Scanner;
/**
* ÕâÊÇÒ»¸öOPPµÄµÄ¼ÆËãÆ÷(¼Ó·¨ºÍ¼õ·¨)
* @author nileader
* @see http://www.nileader.cn
*/
public cla ......
10.2.4.3 Àý×Ó3£ºÍøÂçÓ¦ÓòãÐÒéµÄ¿ª·¢
Ç廪´óѧ³ö°æÉç¡¶Java³ÌÐòÔ±£¬ÉϰàÄǵãʶù¡·×÷ÕߣºÖÓÉù——µÚ10Õ¡¶¸ßÊÖÓжà¸ß²ËÄñÓжà²Ë¡·²¿·Ö½ÚÑ¡¡£
´ó¼ÒÒ²Ðí¶¼ÓùýFTPÉÏ´«ÏÂÔØ¹¤¾ß£¬±ÈÈç“LeapFTP”Õâ¸ö¹¤¾ßÊÇÒ ......
1¡¢JAR¸ñʽÎļþ½éÉÜ
ÔÚJDK1.1°æÖУ¬¶¨ÒåÁËÓÃÓÚ½«ÓëJavaÓ¦ÓóÌÐòÏà¹ØµÄ¶à¸öÎļþÒÔ¼°Ïà¹Ø×ÊÔ´ÕûºÏÔÚÒ»ÆðµÄÊý¾ÝÎļþÀàÐÍ£JAR¡£Ò²Ðí¶ÁÕß»á×¢Òâµ½£ºSunÒÔ¼°ÆäËü¹«Ë¾·¢²¼µÄ¶àÖÖÀàÐÍJava¿â¶¼ÊÇÒÔJARÐÎʽ½øÐÐÎļþѹËõºÍ·â×°µÄ¡£
´Ó±¾ÖÊÉϽ²£¬JARѹËõÎļþ²ÉÓÃZIP¸ñʽ½øÐÐÊý¾ÝѹËõ¡£ÓÉÓÚ×î³õÒýÈëJARÊý¾ÝѹËõÀàÐ͵ÄÄ¿µÄÔÚÓÚ½«¿ª·¢Íê ......