JavaÓû§»Øµ÷·½·¨Ïû³ýÈßÓà´úÂë
Ò». ¿´Ò»¶ÎÈßÓàµÄ´úÂë
public String login(HttpServletRequest request){
OperatorService operatorService = new OperatorService();
WebContext webContext= request.getSession().getAttribute("WEB_CONTEXT_KEY");
Connection conn=null;
try{
Conection conn =DBManager.getConnection();
if(webContext.getOperatorName.equals("123")){
// µÇ½³É¹¦
}
}catch(Throwable t){
//¼Ç¼ÈÕÖ¾
//Ìø×ªµ½Í³Ò»µÄ´íÎóÒ³Ãæ,²»ÄÜÈÃÓû§¿´µ½Òì³£Ò³Ãæ
//¹Ø±ÕConnection
if(conn!=null){
try{conn.close();}cath(SQLException ex){}
}
}
}
public String logOut(HttpServletRequest request){
OperatorService operatorService = new OperatorService();
WebContext webContext= request.getSession().getAttribute("WEB_CONTEXT_KEY");
try{
Conection conn =DBManager.getConnection();
operatorService.logout();
request.getSession().invalidate();
}catch(Throwable t){
//¼Ç¼ÈÕÖ¾
//Ìø×ªµ½Í³Ò»µÄ´íÎóÒ³Ãæ,²»ÄÜÈÃÓû§¿´µ½Òì³£Ò³Ãæ
//¹Ø±ÕConnection
if(conn!=null){
try{conn.close();}cath(SQLException ex){}
}
}
}
¶þ¡¢¿ÉÒÔ¿´µ½,ºìÉ«²¿·Ö´úÂëÍêÈ«ÊÇÈßÓàµÄ£¬ÏÂÃæÓûص÷·½·¨¼ò»¯Õⲿ·Ö´úÂë
1.Ïȶ¨ÒåÒ»¸ö»Øµ÷³éÏóÀà
public abstract class AppCallback {
/**
* »Øµ÷Ö´Ðз½·¨
*
* @return
*/
public String execute() {
&n
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
......
Java™ ÓïÑÔ°üº¬Á½ÖÖÄÚÔÚµÄͬ²½»úÖÆ£ºÍ¬²½¿é£¨»ò·½·¨£©ºÍ volatile ±äÁ¿¡£ÕâÁ½ÖÖ»úÖÆµÄÌá³ö¶¼ÊÇΪÁËʵÏÖ´úÂëÏ̵߳ݲȫÐÔ¡£ÆäÖÐ Volatile ±äÁ¿µÄͬ²½ÐԽϲµ«ÓÐʱËü¸ü¼òµ¥²¢ÇÒ¿ªÏú¸üµÍ£©£¬¶øÇÒÆäʹÓÃÒ²¸üÈÝÒ׳ö´í¡£ÔÚÕâÆÚµÄ Java ÀíÂÛÓëʵ¼ù
ÖУ¬Brian Goetz ½«½éÉܼ¸ÖÖÕýȷʹÓà volatile ±äÁ¿µÄģʽ£¬²¢Õë¶ÔÆäÊÊÓ ......
2. Calendar ¶ÔÏóµÄÈÝ´íÐÔ£¬Lenient ÉèÖà ÎÒÃÇÖªµÀÌØ¶¨µÄÔ·ÝÓв»Í¬µÄÈÕÆÚ£¬µ±Ò»¸öÓû§¸ø³ö´íÎóµÄÈÕÆÚʱ£¬Calendar ÈçºÎ´¦ÀíµÄÄØ£¿ import java.io.*;
import java.util.*; public class WhatIsCalendar
{
public static void main(String[] args) throws Exception{
......
µÚÒ»²¿·Ö. Ìáʾ
ÎÒÐèÒª¶ÁÕâÆªÎÄÕÂÂð£¿
JavaÀà¼ÓÔØÆ÷¶ÔJavaϵͳµÄÔËÐÐÊÇÖÁ¹ØÖØÒªµÄ£¬µ«ÊÇÈ´³£³£±»ÎÒÃǺöÂÔ¡£JavaÀà¼ÓÔØÆ÷¸ºÔØ
ÔÚÔËÐÐʱ²éÕҺͼÓÔØÀà¡£×Ô¶¨ÒåÀà¼ÓÔØÆ÷¿ÉÒÔÍêÈ«¸Ä±äÀàµÄ¼ÓÔØ·½Ê½£¬ÒÔ×Ô¼ºÏ²»¶µÄ·½Ê½À´
¸öÐÔ»¯ÄãµÄJavaÐéÄâ»ú¡£±¾ÎļòÒªµÄ½éÉÜJavaÀà¼ÓÔØÆ÷£¬È»ºóͨ¹ýÒ»¸ö¹¹Ôì×Ô¶¨ÒåÀà¼ÓÔØÆ÷
µÄÀý×ÓÀ´ËµÃ÷£¬Õâ ......
package algorithm.misc;
import util.*;
public class MaxProductOfN1 {
private static int exceptIndex = -1;
public static long regMethod(int data[])
{
long ret = Long.MIN_VALUE;
& ......