介绍一个免费的php空间???网上有一个比较著名的免费php空间:000webhost。不过我要介绍的不是这个，因为这个免费空间提示我24小时激活，但是我都24天了，状态还是Verificationinprogress。我点击CPanel进入时，发现新的提示：However,ifyouneedwebhostingaccountrightnow,youcansignupwithourpartner?...

playframework2.1打war包首先，使用过play1.*版本的开发者应该都知道要将play项目打包发布，可以直接使用playwar命令，但是到了2.*以上的版本，已不再支持playwar来打包项目。这里将原因解释如下：Theyhaven'tdonethisbecausetheServlet3.1spechasnotbeenreleasedyet.Play2supportssomefea...

sql2005触发器问题,麻烦高手们讲解一下.如createtriggert_nameon{table|view}{{for|after|insteadof}{[delete][,][insert][,][update]}assql_statement}其中FOR,AFTER,INSTEADOF是什么意思?分别用于什么情形,他们的区别是什么.color='#e78608'>------解决方案--...

Android.HandlingsomeSQLiteissues.转载：?http://www.enterra-inc.com/techzone/handling_sql_issues/??TodayOSAndroidisgainingmorepopularityenhancingtherangeoftasksthatuserswouldwanttoberesolvedhereandnow.Alo...

HttpResponseCacheability理解 ResponseCacheability Unlessspecificallyconstrainedbyacache-control(section?14.9)directive,acachingsystemMAYalwaysstoreasuccessfulresponse(seesection?13.8)asacacheentry,MAYr...

原来JavaScript的闭包概念是这样的 原来以为闭包是和内部函数有关系，这几天又重新看了JavaScriptTheDefinitiveGuide5th.Edition，发现8.8.FunctionScopeandClosures里是这么定义闭包的：引用JavaScriptfunctionsareacombinationofcodetobeexecutedandthescopeinwhichto...

js动态设置方法 Inessence,privilegedmethodsaredynamicallygeneratedmethods,becausethey’readdedtotheobjectatruntime,ratherthanwhenthecodeisfirstcompiled.Whilethistechniqueiscomputationallymoreexpensivethanbind...

内网里使用ajax通过代理访问外网 ? if(options.proxy){ xmlHttp.withCredentials=true; xmlHttp.setRequestHeader("Proxy-Authorization","BasicbGlhbmcud2FuZzo4ZCFnV3hMMA=="); } ?需要注意的是requestHeader的value是"Basic"+Base64....

phpredis问题查阅了一下资料关于redis的，connect连接，quit的话就关闭连接。 但是php的redis貌似只有连接函数，没有关闭函数。 难道不需要关闭么？这样的话过多的连接岂不是会导致redis变慢，还是它有自己的回收机制？那这个是在什么时候断开连接的呢？color='#FF8000'>------解决方案--------------------Frommyfindings,if...

Oracle开发人员守则以下为Oracle大师级语录：OracleDatabasedevelopersshouldfollowistodoeverythingtheycaninSQL.WhattheycannotdoinSQL,theyshoulddoinPL/SQL.AndwhattheycannotdoinPL/SQL,theyshoulddoinwhateverlanguagetheyare...

WhatisScalability?Scalabilityisasystem'sabilitytoprocessmoreworkload,withaproportionalincreaseinsystemresourceusage.Inotherwords,inascalablesystem,ifyoudoubletheworkload,thenthesystemusestwiceasmanysy...

SQLserver的触发器中after和for的区别afterdelete/insert和fordelete/insert的区别color='#e78608'>------解决方案--------------------AFTERSpecifiesthattheDMLtriggerisfiredonlywhenalloperationsspecifiedinthetriggeringSQLstat...

同时备份数据库和日志的问题在SQLSERVER2000有以下前提，全备和差异备数据库的时候不能同时备份日志ConditionsforBackingUptheTransactionLogThetransactionlogcannotbebackedupduringafulldatabasebackuporadifferentialdatabasebackup.However,thetransacti...

ER图设计问题前提：Employee是一个entity问题是：Eachemployeehasexactlyonesupervisor;however,amanagerhasnosupervisor.Anemployeewhoisasupervisormaysuperviseanynumberofemployees,butnotallemployeesaresupervisors.这个该如何设计？如...

计算机英语高手请进翻译一下这段：Section3.9discussesthespace/timetradeoffinwhichspacerequirementscanbereducedifyouarewillingtosacrificetime.However,thedisk-basedspace/timetradeoffprinciplestatedthatthesmalleryoucanmak...

有句话不太明白moblin官方网站上有这么一段话：Themediaplayerallowsyoutoviewpictures,watchvideoandlistentomusic.Inthebetawesupportmostimagefiles,OggVorbisaudioandOggTheoravideo.HoweverifyouinstallthecorrectGStreamerpackage...

OpenWrt和OpenEmbedded区别OpenWrtandOpenEmbeddedaredifferentprojects,havequitesomethingsincommon,howeveritsaimingsaredifferent(OpenWrtisfrommypointofviewacross-compiling-framework_and_–that’stheimportantp...

struts2配置文件struts.xml出错struts2配置文件struts.xml中找不到dtd文件struts.xml配置文件如下：<?xmlversion="1.0"encoding="UTF-8"?><!DOCTYPEstrutsPUBLIC"-//ApacheSoftwareFoundation//DTDStruts...

打开工程时，报WEB.XML有错，详细说明如下：这是我第一次用MYECLIPSE做项目，打开昨日新建的工程后，显示WEB.XML有错，错误提示显示在第一行：<?xmlversion="1.0"encoding="UTF-8"?>详细错误信息如下：Theerrorsbelowweredetectedwhenvalidatingthefile&quo...

jsp传递的url页面差数能不能为类window.location='b.jsp?par=test'par这个参数只能为字符串？是否可以象session那样存储一个类如果要传递一个类除了用session还有什么方法color='#e78608'>------解决方案--------------------如果两个页面都位于服务器端除了session还可以使用request传递对象。...