锘??xml version="1.0" encoding="utf-8" standalone="yes"?>久久久久久久亚洲精品,亚洲AV无码久久精品成人,久久精品国产精品亚洲精品 http://www.tkk7.com/energykk/JAVA鏃ュ織 zh-cn Sat, 10 May 2025 16:15:56 GMT Sat, 10 May 2025 16:15:56 GMT 60 璇峰ぇ瀹跺府蹇?鍏充簬寮傚父錛歰rg.springframework.transaction.TransactionSystemException http://www.tkk7.com/energykk/archive/2007/12/15/167922.html灝忔湪 灝忔湪 Sat, 15 Dec 2007 03:54:00 GMT http://www.tkk7.com/energykk/archive/2007/12/15/167922.html http://www.tkk7.com/energykk/comments/167922.html http://www.tkk7.com/energykk/archive/2007/12/15/167922.html#Feedback 4 http://www.tkk7.com/energykk/comments/commentRss/167922.html http://www.tkk7.com/energykk/services/trackbacks/167922.html 闃呰鍏ㄦ枃 ]]> JS涔婳OP http://www.tkk7.com/energykk/archive/2007/09/18/146100.html灝忔湪 灝忔湪 Tue, 18 Sep 2007 03:02:00 GMT http://www.tkk7.com/energykk/archive/2007/09/18/146100.html http://www.tkk7.com/energykk/comments/146100.html http://www.tkk7.com/energykk/archive/2007/09/18/146100.html#Feedback 1 http://www.tkk7.com/energykk/comments/commentRss/146100.html http://www.tkk7.com/energykk/services/trackbacks/146100.html 鍦ㄥ啓闈㈠悜瀵硅薄鐨刉EB搴旂敤紼嬪簭鏂歸潰JavaSciprt鏄竴縐嶅緢濂界殑閫夋嫨.瀹冭兘鏀寔OOP.鍥犱負(fù)瀹冮氳繃鍘熷瀷鏀寔緇ф壙鐨勬柟寮忓拰閫氳繃灞炴у拰鏂規(guī)硶鐨勬柟寮忎竴鏍峰ソ.寰堝寮鍙戣呰瘯鍥炬姏寮僇S,璇曠潃鐢–#鎴朖AVA浠呮槸鍥犱負(fù)JS涓嶆槸浠栬涓哄悎閫傜殑闈㈠悜瀵硅薄鐨勮璦.璁稿浜鴻繕娌℃湁璁よ瘑鍒癹avascript鏀寔緇ф壙.褰撲綘鍐欓潰鍚戝璞$殑浠g爜鏃?瀹冭兘緇欎綘寰堝己澶х殑鑳介噺.浣犱篃鍙互浣跨敤瀹冨啓鍑哄彲澶嶇敤,鍙皝瑁呯殑浠g爜.
瀵硅薄涓轟綍濡傛浼熷ぇ?
闈㈠悜瀵硅薄鎬濇兂鐨勬垚鍔熸槸鐢變簬瀹冧豢鐓т簡鐜板疄涓殑浜嬬墿鍜屼簨鐗╃殑鑱旂郴.浜嬬墿鏈夊睘鎬у拰鏂規(guī)硶.濡傛灉鎴戜滑鎻忚堪涓涓彴鐏?鎴戜滑浼?xì)璇村畠鐨勯珮搴﹀拰瀹藉?姣斿12CM."寮鐏?榪欎釜鍔ㄤ綔鏄畠鐨勬柟娉?褰撳畠鏄浜庡紑鐫鐨勭姸鎬佹椂.瀹冨彲浠ヨ璋冧寒涓鐐規(guī)垨鏆椾竴鐐?涔熷氨鏄寒搴﹁繖涓睘鎬у煎彉澶ф垨鍙樺皬).
javascript 緇欎簣浜嗕負(fù)WEB搴旂敤紼嬪簭鍒涘緩瀵硅薄鐨勮兘鍔?瀵硅薄鍦ㄩ渶瑕佺殑鏃跺欑浉搴旂殑浜嬩歡浼?xì)琚Е鍙?浠g爜灝佽鍚?瀹冭兘琚疄渚嬪寲寰堝嬈?鍦╦avascript閲屾湁鍑犵鍒涘緩瀵硅薄鐨勬柟娉?鍦ㄤ笉鍚岀殑鍦哄悎鍙敤涓嶅悓鐨勬柟娉?/font>
1.1JS鍒涘緩瀵硅薄鏂瑰紡涔嬩竴鐢?new Object() 鏉ュ垱寤哄璞?/font>
.鏈綆鍗曠殑灝辨槸鐢╪ew 鎿嶄綔絎?渚嬪:
<script language="javascript" type="text/javascript">
person = new Object()
person.name = "Tim Scarfe"
person.height = "6Ft"
person.run = function() {
this.state = "running"
this.speed = "4ms^-1"
}
</script>
鎴戜滑鍦ㄨ繖涓緥瀛愰噷瀹氫箟浜唒erson榪欎釜瀵硅薄,鐒跺悗鍔犲叆浜嗗畠鐨勫睘鎬у拰鏂規(guī)硶.鍦ㄨ繖涓緥瀛愰噷,鑷畾涔夌殑鏂規(guī)硶閲屾湁涓や釜灞炴?
1.2.鐢ㄦ枃瀛楄鍙稬iteral Notation鍒涘緩瀵硅薄
鐢ㄦ枃瀛楄鍙蜂篃鍙互鍒涘緩瀵硅薄,浣嗚javascript 1.2浠ヤ笂鐗堟湰.瀹冪殑鍒涘緩褰㈠紡鏄鏍風(fēng)殑.
<script language="javascript" type="text/javascript">
// Object Literals
timObject = {
property1 : "Hello",
property2 : "MmmMMm",
property3 : ["mmm", 2, 3, 6, "kkk"],
method1 : function(){
alert("Method had been called" + this.property1)
}
};
timObject.method1();
alert(timObject.property3[2]) // 緇撴灉涓?
var circle = { x : 0, y : 0, radius: 2 } // another example
// 宓屽涔熸槸鍏佽鐨勫摝.
var rectangle = {
upperLeft : { x : 2, y : 2 },
lowerRight : { x : 4, y : 4}
}
alert(rectangle.upperLeft.x) // 緇撴灉涓?
</script>
鏂囧瓧璁板彿鍙槸鏄暟緇?涔熷彲浠ユ槸浠繪剰鐨刯avascript琛ㄨ揪寮忔垨鍊?
鐢?new 鎿嶄綔絎︽垨鏂囧瓧璁板彿鍒涘緩涓涓嚜瀹氫箟瀵硅薄閮芥槸綆鍗曠殑,涔熸槸絎﹀悎閫昏緫鐨?浣嗗畠鏈澶х殑緙虹偣灝辨槸緇撴灉涓嶅彲澶嶇敤.涔熶笉鑳藉緢瀹規(guī)槗鐨勭敤涓嶅悓鐨勭増鏈垵濮嬪寲鍒涘緩瀵硅薄.渚嬪涓婇潰鐨勭涓涓緥瀛?濡傛灉 person 鐨?name 涓嶆槸 "Tim Scarfe",閭f牱鎴戜滑涓嶅緱涓嶉噸鏂板畾涔夋暣涓璞?浠呬粎涓轟簡閫傚簲瀹冪殑涓鐐圭偣鏀瑰彉.
1.3.瀵硅薄鐨勬瀯閫犲拰鍘熷瀷
鍦∣OP鐨勪笘鐣岄噷,鐢ㄥ厛鍓嶇殑鏂規(guī)硶瀹氫箟瀵硅薄鍦ㄨ澶氬満鍚堥兘鏈夐檺鍒?鎴戜滑闇瑕佷竴縐嶅垱寤哄璞$殑鏂規(guī)硶,綾誨瀷鍙互琚嬈′嬌鐢ㄨ屼笉鐢ㄩ噸鏂板畾涔?瀵硅薄鍦ㄥ疄渚嬪寲鏃舵瘡嬈¢兘鍙互鎸夐渶鍒嗛厤涓嶅悓鐨勫?瀹炵幇榪欎釜鐩爣鐨勬爣鍑嗘柟娉曟槸鐢ㄥ璞℃瀯閫犲櫒鍑芥暟.
涓涓璞℃瀯閫犲櫒鍙笉榪囨槸涓湁瑙勫垯鐨刯avascript鍑芥暟,瀹冨氨璞′竴涓鍣?瀹氫箟鍙傛暟,璋冪敤鍏朵粬鍑芥暟絳夌瓑).瀹冧滑涓よ呮墍涓嶅悓鐨勬槸鏋勯犲櫒鍑芥暟鏄敱 new 鎿嶄綔絎﹁皟鐢ㄧ殑.(浣犲皢鍦ㄤ笅闈㈢殑渚嬪瓙涓湅鍒?.鍩轟簬鍑芥暟璇硶褰㈠紡鐨勫璞″畾涔?鎴戜滑鍙互浣垮畠宸ヤ綔寰楁渶濂?
璁╂垜浠敤鐜板疄涓栫晫涓殑鐚潵涓句釜渚嬪瓙.鐚殑 name 鍜?color 鏄尗鐨勫睘鎬?meeyow(鐚彨)鏄畠鐨勪竴涓柟娉?閲嶈鐨勬槸浠諱綍涓嶅悓鐨勭尗閮藉彲鑳芥湁涓嶅悓鐨?name 鍜?meeyow 鐨勫彨澹?涓轟簡寤虹珛閫傚簲榪欎簺鐗瑰緛鐨勫璞$被,鎴戜滑灝嗕嬌鐢ㄥ璞℃瀯閫犲櫒.
<script language="javascript" type="text/javascript">
function cat(name) {
this.name = name;
this.talk = function() {
alert( this.name + " say meeow!" )
}
}
cat1 = new cat("felix")
cat1.talk() //alerts "felix says meeow!"
cat2 = new cat("ginger")
cat2.talk() //alerts "ginger says meeow!"
</script>
鍦ㄨ繖閲?鍑芥暟 cat() 鏄竴涓璞℃瀯閫犲櫒,瀹冪殑灞炴у拰鏂規(guī)硶鍦ㄥ嚱鏁頒綋閲岀敤this鏉ュ畾涔?鐢ㄥ璞℃瀯閫犲櫒瀹氫箟鐨勫璞$敤 new 鏉ュ疄渚嬪寲.涓繪剰鎴戜滑濡備綍闈炲父瀹規(guī)槗鐨勫畾涔夊涓猚at 鐨勫疄渚?姣忎竴涓兘鏈夎嚜宸辯殑鍚嶅瓧,榪欏氨鏄璞℃瀯閫犲櫒甯︾粰鎴戜滑鐨勭伒媧繪?
鏋勯犲櫒寤虹珛浜嗗璞$殑钃濆浘.騫朵笉鏄璞℃湰韜?
鍦ㄥ師鍨嬮噷澧炲姞鏂規(guī)硶.
鍦ㄤ笂闈㈡垜浠湅鍒扮殑渚嬪瓙閲?瀵硅薄鐨勬柟娉曟槸鍦ㄦ瀯閫犲櫒閲屽畾涔夊ソ鐨勪簡.鍙﹀涓縐嶅疄鐜扮殑閫斿緞鏄氳繃鍘熷瀷(prototype).xxx
鍘熷瀷鏄痡avascript緇ф壙鐨勪竴縐嶅艦寮?鎴戜滑鍙互涓哄璞″畾涔夊ソ鍚?鍐嶅垱閫犱竴涓柟娉?鍘熸潵鎵鏈夊璞$殑瀹炰緥閮藉皢鍏變韓.
璁╂垜浠潵鎵╁睍鏈鍒濈殑 cat 瀵硅薄.澧炲姞涓涓敼鍚嶇殑鏂規(guī)硶.鐢?prototype 鐨勬柟寮?
<script language="javascript" type="text/javascript">
cat.prototype.changeName = function(name) {
this.name = name;
}
firstCat = new cat("pursur")
firstCat.changeName("Bill")
firstCat.talk() //alerts "Bill says meeow!"
</script>
灝辮薄浣犳墍鐪嬪埌鐨?鎴戜滑浠呭彧鐢ㄤ簡 鍏抽敭瀛?prototype 瀹炵幇浜嗗湪瀵硅薄瀹氫箟鍚庨┈涓婂鍔犱簡changeName鏂規(guī)硶.榪欎釜鏂規(guī)硶琚墍鏈夌殑瀹炰緥鍏變韓.
鐢ㄥ師鍨?prototype) 閲嶈澆 javascript 瀵硅薄
鍘熷瀷 鍦ㄨ嚜瀹氫箟瀵硅薄鍜屾湁閫夋嫨鎬х殑閲嶈澆瀵硅薄涓婇兘鍙互宸ヤ綔.姣斿 Date() 鎴?String .榪欏彲鑳芥槸鏃犳澧冪殑.
1.4.瀛愮被鍜岃秴綾?br />
涓嬮潰涓涓緥瀛愭紨紺轟簡濡備綍緇ф壙
<script language="javascript" type="text/javascript">
function superClass() {
this.supertest = superTestMethod; //attach method superTest
}
function superTestMethod() {
return "superTest";
}
function subClass() {
this.inheritFrom = superClass;
this.inheritFrom();
this.subtest = subTestMethod; //attach method subTest
}
function subTestMethod() {
return "subTest";
}
var newClass = new subClass();
alert(newClass.subtest()); // 寮瑰嚭"subTest"
alert(newClass.supertest()); // 寮瑰嚭 "superTest"
</script>
1.5.璁塊棶瀵硅薄灞炴?br />
姝e浣犳墍鐭? (.)鎿嶄綔絎﹁兘澶熺敤鏉ユ搷浣滃璞″睘鎬у拰鏂規(guī)硶,鑰?[]) 鎿嶄綔絎︾敤鏉ユ搷浣滄暟緇?
<script language="javascript" type="text/javascript">
// 榪欎袱縐嶇敤娉曟槸鐩稿悓鐨?br />
object.property
object["property"]
</script>
<script language="javascript">
function Circle (xPoint, yPoint, radius) {
this.x = xPoint;
this.y = yPoint;
this.r = radius;
}
var aCircle = new Circle(5, 11, 99);
alert(aCircle.x);
alert(aCircle["x"]);
</script>
鎴戜滑鍙互閫氳繃for in寰幆鏉ラ亶鍘嗗璞$殑灞炴с?br />
<script language="javascript" type="text/javascript">
var testObj = {
prop1 : "hello",
prop2 : "hello2",
prop3 : new Array("hello",1,2)
}
for(x in testObj) {
alert( x + "-" + testObj[ x ] )
}
</script>
<script language="javascript">
var Circle = { // another example
x : 0,
y : 1,
radius: 2
}
for(p in Circle) {
alert( p + "-" + Circle[ p ] )
}
</script>
]]>鍦ㄤ嬌鐢╠isplaytag鍑虹幇鐨勯敊璇紒 蹇樺ぇ瀹跺府蹇欒В鍐籌紒 http://www.tkk7.com/energykk/archive/2007/08/29/141107.html灝忔湪 灝忔湪 Wed, 29 Aug 2007 14:12:00 GMT http://www.tkk7.com/energykk/archive/2007/08/29/141107.html http://www.tkk7.com/energykk/comments/141107.html http://www.tkk7.com/energykk/archive/2007/08/29/141107.html#Feedback 0 http://www.tkk7.com/energykk/comments/commentRss/141107.html http://www.tkk7.com/energykk/services/trackbacks/141107.html 鍦ㄤ嬌鐢╠isplaytag鍑虹幇榪欎釜寮傚父 寰堜箙閮芥病鏈夎В鍐籌紒
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]]> 姹傚姪楂樻墜 http://www.tkk7.com/energykk/archive/2007/06/05/122085.html灝忔湪 灝忔湪 Tue, 05 Jun 2007 03:13:00 GMT http://www.tkk7.com/energykk/archive/2007/06/05/122085.html http://www.tkk7.com/energykk/comments/122085.html http://www.tkk7.com/energykk/archive/2007/06/05/122085.html#Feedback 1 http://www.tkk7.com/energykk/comments/commentRss/122085.html http://www.tkk7.com/energykk/services/trackbacks/122085.html ]]>璇鋒暀楂樻墜 http://www.tkk7.com/energykk/archive/2007/05/21/118908.html灝忔湪 灝忔湪 Mon, 21 May 2007 08:04:00 GMT http://www.tkk7.com/energykk/archive/2007/05/21/118908.html http://www.tkk7.com/energykk/comments/118908.html http://www.tkk7.com/energykk/archive/2007/05/21/118908.html#Feedback 12 http://www.tkk7.com/energykk/comments/commentRss/118908.html http://www.tkk7.com/energykk/services/trackbacks/118908.html 涓轟粈涔堟垜鍦ㄤ嬌鐢⊿SH(struts+spring+hibernate)鏋勫緩涓涓狫2EE鏃朵負(fù)浠涔堜細(xì)鏃跺父鍑虹幇榪欑閿欒:
璇峰摢浣嶇煡閬撶殑楂樻墜鍔″繀鎸囧涓涓嬪皬寮?璋㈣阿!
]]> Hibernate涓疄浣撳璞$殑鐢熷懡鍛ㄦ湡 http://www.tkk7.com/energykk/archive/2007/05/08/115927.html灝忔湪 灝忔湪 Tue, 08 May 2007 06:02:00 GMT http://www.tkk7.com/energykk/archive/2007/05/08/115927.html http://www.tkk7.com/energykk/comments/115927.html http://www.tkk7.com/energykk/archive/2007/05/08/115927.html#Feedback 0 http://www.tkk7.com/energykk/comments/commentRss/115927.html http://www.tkk7.com/energykk/services/trackbacks/115927.html 瀹炰綋瀵硅薄鐨勭敓鍛藉懆鏈熷湪Hibernate搴旂敤涓槸涓涓緢鍏抽敭鐨勬蹇?姝g‘鐨勭悊瑙e疄浣撳璞$殑鐢熷懡鍛ㄦ湡灝嗗鎴戜滑搴旂敤Hibernate鍋氭寔涔呭眰璁捐璧峰埌寰堝ぇ鐨勪綔鐢?鑰屾墍璋撶殑瀹炰綋瀵硅薄鐨勭敓鍛藉懆鏈熷氨鏄寚瀹炰綋瀵硅薄鐢變駭鐢熷埌琚獹C鍥炴敹鐨勪竴孌佃繃紼?鍦ㄨ繖榪囩▼涓垜浠渶瑕佺悊瑙g殑灝辨槸瀹炰綋瀵硅薄鐢熷懡鍛ㄦ湡涓殑涓夌鐘舵? 1.鑷敱鐘舵?Transient) 鎵璋撶殑Transient鐘舵?鍗沖疄浣撳璞″湪鍐呭瓨涓嚜鐢卞瓨鍦?涓庢暟鎹簱涓殑璁板綍鏃犲叧,閫氬父鏄垜浠殑J2EE涓璙O,騫舵病鏈夎綰沖叆Hibernate鐨勫疄浣撶鐞嗗鍣?
1 Test test = new Test(); 2 test.setName(" energykk " ); 3 // 姝ゆ椂鐨則est瀵硅薄澶勪簬Transient(鑷敱鐘舵?騫舵病鏈夎Hibernate妗嗘灦鎵綆$悊 4
2.鎸佷箙鐘舵?Persistent) 浣曡皳 Persistent? 鍗沖疄浣撳璞″凡緇忓浜庤Hibernate瀹炰綋綆$悊瀹瑰櫒瀹瑰櫒鎵綆$悊鐨勭姸鎬?榪欑鐘舵佷笅榪欎釜瀹炰綋瀵硅薄鐨勫紩鐢ㄥ皢琚撼鍏ibernate瀹炰綋綆$悊瀹瑰櫒瀹瑰櫒鎵綆$悊. 澶勪簬Persistent鐘舵佺殑瀹炰綋瀵硅薄,瀵瑰畠鐨勫彉鏇翠篃灝嗚鍥哄寲鍒版暟鎹簱涓? 鍦↗2EE涓氬父鎸囩殑鏄竴涓狿O.
Transaction tr = session.beginTransaction(); session.save(test); // 姝ゆ椂鐨則est瀵硅薄宸茬粡澶勪簬Persistent(鎸佷箙鐘舵?瀹冭Hibernate綰沖叆瀹炰綋綆$悊瀹瑰櫒 tr.commit(); Transaction tr2 = session.beginTransaction(); test.setName( " xukai " ); // 鍦ㄨ繖涓簨鍔′腑鎴戜滑騫舵病鏈夋樉紺虹殑璋冪敤save()鏂規(guī)硶浣嗘槸鐢變簬Persistent鐘舵佺殑瀵硅薄灝嗕細(xì)鑷姩鐨勫浐鍖栧埌 // 鏁版嵁搴撲腑,鍥犳姝ゆ椂姝e鍦≒ersistent鐘舵佺殑test瀵硅薄鐨勫彉鍖栦篃灝嗚嚜鍔ㄨ鍚屾鍒版暟鎹簱涓?/span> tr2.commit();
澶勪簬Persistent鐘舵佺殑瀹炰綋鍙互綆鍗曠殑鐞嗚В涓?濡傛灉涓涓疄浣撳璞′笌session鍙戠敓浜嗗叧鑱?騫朵笖澶勪簬session鐨勬湁鏁堟湡鍐?閭d箞榪欎釜瀹炰綋瀵硅薄灝卞浜嶱ersistent鐘舵?
3.娓哥鐘舵?Detached) 澶勪簬Persistent鐘舵佺殑瀹炰綋瀵硅薄,鍏跺搴旂殑session鍏抽棴浠ュ悗,閭d箞榪欎釜瀹炰綋灝卞浜嶥etached鐘舵? 鎴戜滑鍙互璁や負(fù)session瀵硅薄灝辨槸涓涓狿ersistent鐨勫涓?涓鏃﹁繖涓涓誨け鏁?閭d箞榪欎釜瀹炰綋灝卞浜嶥etached鐘舵?
session.close(); // 涓巘est瀵硅薄鍏寵仈鐨剆ession琚叧闂?鍥犳姝ゆ椂鐨則est瀵硅薄榪涘叆Detached(娓哥鐘舵? session2 = HibernateSessionFactory.getSession(); Transaction tr3 = session2.beginTransaction(); session2.update(test); // 姝ゆ椂姝e浜嶥etached鐘舵佺殑test瀵硅薄鐢變簬鍐嶆鍊熷姪涓巗ession2琚撼鍏ュ埌Hibernate鐨勫疄浣撶鐞嗗鍣ㄦ墍浠ユ鏃剁殑 // test瀵硅薄鎭㈠鍒癙ersistent鐘舵?/span> test.setName( " jjjj " ); tr3.commit(); session2.close();
鏃㈢劧Transient鐘舵佺殑瀹炰綋涓嶥etached鐘舵佺殑瀹炰綋閮戒笌Hibernate鐨勫疄浣撶鐞嗗鍣ㄦ病鏈夊叧緋?閭d粬浠埌搴曞瓨鍦ㄥ摢浜涘樊寮? 宸紓灝卞湪浜庡浜嶵ransient鐘舵佺殑鍙湁涓涓狽ame鐨勫睘鎬?姝ゆ椂鐨則est瀵硅薄鎵鍖呭惈鐨勬暟鎹俊鎭粎闄愪簬姝?浠栦笌鏁版嵁搴撲腑鐨勮褰曟病鏈変換浣曠摐钁? 浣嗘槸澶勪簬Detached鐘舵佺殑瀹炰綋宸茬粡涓嶆鍖呭惈Name榪欎釜灞炴?榪樿璧嬩簣浜嗕富閿篃灝辨槸閫氬父POJO閲岀殑id灞炴?鐢變簬id鏄富閿?浠栧彲浠ョ‘瀹氭暟鎹簱琛ㄤ腑鐨勪竴鏉?br>鍞竴鐨勮褰?閭d箞鑷劧鐨勫浜嶥etached鐘舵佺殑瀹炰綋灝辮兘涓庢暟鎹簱琛ㄤ腑鎷ユ湁鐩稿悓id鐨勮褰曠浉鍏寵仈. 榪欏氨鏄粬浠箣闂存墍瀛樺湪鐨勫樊寮?綆鑰岃█涔?Transient鐘舵佺殑瀹炰綋緙轟箯涓庢暟鎹簱琛ㄨ褰曚箣闂寸殑鑱旂郴,鑰孌etached鐘舵佺殑璇曢鎭版伆鐩稿弽.鍙笉榪囨槸鑴辯浜唖ession榪欎釜鏁版嵁搴撴搷浣滃鉤鍙拌屽凡.
]]> 浣滀笟 http://www.tkk7.com/energykk/archive/2007/02/08/98851.html灝忔湪 灝忔湪 Thu, 08 Feb 2007 11:53:00 GMT http://www.tkk7.com/energykk/archive/2007/02/08/98851.html http://www.tkk7.com/energykk/comments/98851.html http://www.tkk7.com/energykk/archive/2007/02/08/98851.html#Feedback 1 http://www.tkk7.com/energykk/comments/commentRss/98851.html http://www.tkk7.com/energykk/services/trackbacks/98851.html 2錛幝燜ilter榪囨護(hù)鍣ㄣ丩istener鐩戝惉鍣ㄥ師鐞嗗拰浠g爜瀹炵幇 3錛幝燬CJP鑰冮璁粌錛堜袱濂楋級 4錛幝燭omcat閰嶇疆鍖呮嫭Tomcat鐢?shù)鑴戝紑鏈鴻嚜鍔ㄥ惎鍔ㄣ佽繛鎺ユ睜鍚勯」鍙傛暟鍚箟 5錛幝燡DBC瀹炵幇10涓囷紝50涓囷紝100涓囨暟鎹煡璇㈡ц兘瀵規(guī)瘮鍜岃皟浼樻柟妗?br />6錛幝犵紪鍐檍ava紼嬪簭璋冪敤mysql瀛樺偍榪囩▼ 7錛幝犵敤jsp+struts+dao瀹炵幇鐢ㄦ埛鐧婚檰 8錛幝犵敤jsp+struts+dao瀹炵幇鏁版嵁搴揷rud鎿嶄綔錛屽茍鍦ㄩ〉闈㈠睍紺烘晥鏋?br />9錛幝燡dbc鎵歸噺鏁版嵁鎻掑叆浠g爜瀹炵幇錛堣嚦灝戞彃鍏?0涓囨潯璁板綍錛?br />10錛幝犲綰跨▼瀹炵幇鐢熶駭鑰?娑堣垂鑰呭伐浣滆繃紼?br />11錛幝燬ocket瀹炵幇鐐瑰鐐硅亰澶╁璇?br />12錛幝燞ibernate涓奵3p0,proxool,鍙?qiáng)鏈嶅姟鍣ㄤ笂杩炴帴姹犻厤缃Q堝彲閫夛級 13錛幝燞ibernate瀹炵幇鏁版嵁鐨刢rud鎿嶄綔錛堝彲閫夛級 14錛幝燬truts+Hibernate+Sping瀹炵幇crud鎿嶄綔騫跺湪欏甸潰鏄劇ず鏁堟灉錛堝彲閫夛級 ]]> 鍦∣rcale涓嬌鐢ㄨ鍥懼拰瀛樺偍榪囩▼ http://www.tkk7.com/energykk/archive/2006/11/09/80224.html灝忔湪 灝忔湪 Thu, 09 Nov 2006 10:29:00 GMT http://www.tkk7.com/energykk/archive/2006/11/09/80224.html http://www.tkk7.com/energykk/comments/80224.html http://www.tkk7.com/energykk/archive/2006/11/09/80224.html#Feedback 0 http://www.tkk7.com/energykk/comments/commentRss/80224.html http://www.tkk7.com/energykk/services/trackbacks/80224.html 聽鍦∣rcale涓嬌鐢ㄨ鍥懼拰瀛樺偍榪囩▼ 涓.瑙嗗浘 1.涓轟粈涔堣寮曞叆瑙嗗浘榪欎釜姒傚康錛?br />璇曟兂濡傛灉鎴戜滑瑕佷嬌鐢ㄨ綆楀垪璋冩暣鏁版嵁鐨勭粨鏋?鎴栬呭熀浜庡垪鍊兼瘮杈冧粠澶氫釜琛ㄤ腑鎶藉彇鏁版嵁,鎴戜滑灝變笉寰椾笉閲囧彇鐩稿寰堝鏉傜殑SQL璇彞.浣嗘槸,濡傛灉鎴戜滑瑕佸嬈℃寜鐓?br />榪欑鏂瑰紡鑾峰彇鏁版嵁,閭e矀涓嶆槸瑕佷竴閬嶅張涓閬嶇殑閲嶅鍐欒繖浜涘鏉傜殑SQL璇彞,閭f槸涓浠跺涔堜護(hù)浜哄ご鐥涚殑浜嬪晩錛屼絾鏄?鏈変簡瑙嗗浘,鎴戜滑灝卞彲浠ュ畬鍏ㄩ伩鍏嶈繖浜涗笉蹇呰 澶氬仛榪欎簺鏃犵敤鍔熶簡,SQL鍏佽鎴戜滑鍦ㄦ暟鎹簱涓垱寤鴻鍥?瑙嗗浘鎻愪緵浜嗕竴縐嶅崐鎸佷箙鎬х殑鏀歸犳柟寮?榪欐牱鎴戜滑灝卞彲浠ラ氳繃璁塊棶瑙嗗浘鏉ヤ唬鏇跨洿鎺ヨ闂〃,鎹㈠彞璇濊灝辨槸 瑙嗗浘灝辯浉褰撲簬涓涓娊璞″眰,榪欐牱灝辮兘鏄垜浠互涓縐嶆洿涓鑷寸殑鏂瑰紡鏍煎紡鏁版嵁.鍚屾椂榪欐牱涔熷ぇ澶ф彁楂樹簡鏁版嵁鐨勫畨鍏ㄦ?鐢ㄦ埛浠呭彲浠ヨ闂埌瑙嗗浘,鑰屼笉鑳借闂埌涓嬪眰鐨?br />鏁版嵁. 2.瑙嗗浘鏈夐偅浜涗紭鐐癸紵 聽1.灝嗙敤鎴風(fēng)殑娉ㄦ剰鍔涢泦涓湪鐗瑰畾鐨勬暟鎹笂,浠庤屾彁楂樻暟鎹殑瀹夊叏鎬?br />聽2.綆鍖栦簡鏁版嵁鐨勬煡璇㈠拰澶勭悊鎿嶄綔,DBA鍙互鎶婂ぇ閲忕殑鐩稿叧鐨勫唴瀹硅璁″埌涓涓鍥句腑,浣跨敤鎴峰湪鏌ヨ鍜屽鐞嗘暟鎹椂灝卞儚澶勭悊琛ㄩ偅涔堢畝鍗?鑰屼笉鐢ㄧ紪鍐欏鏉傜殑 聽select璇彞 聽3.鏈夊埄浜庢暟鎹殑浜ゆ崲 聽4.鏈夊埄浜庣畝鍖栧鐢ㄦ埛鏉冮檺鐨勭鐞?br />3.鍦⊿QL濡備綍鍒涘緩鍜屼嬌鐢ㄨ鍥撅紵 聽鍒涘緩瑙嗗浘: 聽錛嶏紴create view 瑙嗗浘鍚嶇О as Query(浠繪剰鐨剆elect璇彞) 聽聽Example:CREATE VIEW selectstudent 聽聽聽聽AS select name from student;(璇ヤ緥瀛愬氨鎻愰珮浜嗘暟鎹殑鎸夊叏鎬?鍦ㄧ敤鎴瘋皟鐢ㄨ繖涓鍥炬椂,灝卞彧鑳界湅鍒板鐢熷悕瀛? 聽浣跨敤瑙嗗浘: 聽錛嶏紴select 瀛楁鍚嶃from 瑙嗗浘鍚嶃where 榪囨護(hù)鏉′歡 聽聽Example(鎺ヤ笂):select name from selectstudent where name = '寮犱笁'; 4.鎬庢牱鏇存敼瑙嗗浘? 聽錛嶏紴CREATE OR REPLACE VIEW 瑙嗗浘鍚嶃AS銆Query 5.鎬庢牱鍒犻櫎瑙嗗浘? 聽錛嶏紴DROP VIEW 瑙嗗浘鍚?br />浜岋紟瀛樺偍榪囩▼ 1.浠涔堟槸鍌ㄥ瓨榪囩▼? 鎴戜滑鍦ㄤ嬌鐢⊿QL榪涜緙栫▼鏃?鍙互浣跨敤涓ょ鏂規(guī)硶鍌ㄥ瓨鍜屾墽琛岀▼搴?鍙互鍦ㄦ湰鍦板偍瀛樼▼搴忥紝鍒涘緩騫跺悜鏁版嵁搴撳彂閫佸懡浠ゅ茍澶勭悊緇撴灉鐨勫簲鐢ㄧ▼搴?鏈濂界殑鏂規(guī)硶褰撶劧鏄皢紼嬪簭鍦ㄦ暟鎹簱鍌ㄥ瓨涓?br />鍌ㄥ瓨榪囩▼,鍒涘緩鎵ц鍌ㄥ瓨榪囩▼騫跺鐞嗙粨鏋滅殑搴旂敤紼嬪簭. 2.瀛樺偍榪囩▼鏈変粈涔堜綔鐢? 聽錛嶏紴鎺ュ彈杈撳叆鍙傛暟騫朵互杈撳嚭鍙傛暟鐨勫艦寮忓皢澶氫釜鍊艱繑鍥炶嚦璋冪敤榪囩▼鎴栬繘琛屾壒澶勭悊 聽錛嶏紴鎵ц鏁版嵁搴撴搷浣滅殑緙栫▼璇彞 聽錛嶏紴鍚戣皟鐢ㄨ繃紼嬫垨鎵瑰鐞嗚繑鍥炵姸鎬佸艱〃鏄庢垚鍔熸垨澶辮觸浠ュ強(qiáng)澶辮觸鐨勫師鍥?br />3.浣跨敤瀛樺偍榪囩▼鏈夐偅浜涗紭鍔? 聽錛嶏紴鍏佽妯″潡鍖栫▼搴忚璁?鍙渶鍒涘緩榪囩▼涓嬈″茍灝嗗叾淇濆瓨鍦ㄦ暟鎹簱涓?浠ュ悗灝辮兘鍦ㄧ▼搴忎腑璋冪敤璇ヨ繃紼嬩換鎰忔 聽錛嶏紴鍏佽鏇村揩鐨勬墽琛?濡傛灉鏌愰」鎿嶄綔闇瑕佸ぇ閲忕殑SQL浠g爜鎴栭渶瑕侀噸澶嶆墽琛?瀛樺偍榪囩▼灝嗘瘮SQL浠g爜鎵ц鐨勮蹇?br />聽錛嶏紴鍑忓皯緗戠粶嫻侀噺.涓涓渶瑕佹暟鐧捐鐨凷QL浠g爜鎿嶄綔鐢變竴鏉℃墽琛岃繃紼嬩唬鐮佺殑鍗曠嫭璇彞灝卞彲浠ュ疄鐜?鑰屼笉闇瑕佸湪緗戠粶涓彂閫佹暟鐧捐浠g爜. 聽錛嶏紴鍙綔涓哄畨鍏ㄦ満鍒朵嬌鐢?br />4.濡備綍鍒涘緩瀛樺偍榪囩▼? 聽錛嶏紴CREATE 錛籓R REPLACE錛?瀛樺偍榪囩▼鍚?(鍙傛暟鍒楄〃) 聽聽AS 聽聽BEGIN 聽聽聽瀛樺偍榪囩▼涓諱綋 聽聽END; 聽錛嶏紴Orcale涓弬鏁扮殑妯″紡:鍙傛暟鍚嶃IN銆鎴?OUT 鏁版嵁綾誨瀷 聽聽Example: 聽聽聽create or replace insertstudent(i_studentid in int,i_studentname in vachar); 聽聽聽as 聽聽聽begin 聽聽聽聽insert student(studentid,name)values(i_studentid,i_studentname);
聽聽聽end; 聽聽聽浣跨敤璇ュ瓨鍌ㄨ繃紼?br />聽聽聽call insertstudent(1,'寮犱笁'); 聽錛嶏紴浣跨敤杈撳嚭鍙傛暟: 聽聽Example: 聽聽聽create or replace getstudentname(i_studentid in int,o_studentname out vachar); 聽聽聽as 聽聽聽begin 聽聽聽聽select name into o_studentname from student where studentid = i_studentid; 聽聽聽end; 聽聽 聽聽聽浣跨敤璇ュ瓨鍌ㄨ繃紼?br />聽聽聽set severout on --鍗曠嫭鎵ц 聽聽聽declare 聽聽聽聽studentname vachar(50);--鍙橀噺澹版槑 聽聽聽begin 聽聽聽聽getstudentname(1,studentname); 聽聽聽聽dbms_output.put_line(studentname); 聽聽聽end;
聽聽聽鐫杈撳嚭緇撴灉涓?寮犱笁
聽聽聽 聽聽聽 聽聽聽聽聽
聽
]]> 鍏崇郴鍨嬫暟鎹簱綆$悊緋葷粺Orcale9i浣撶郴緇撴瀯鐨勫垵姝ヨ璇?/title> http://www.tkk7.com/energykk/archive/2006/11/07/79715.html灝忔湪 灝忔湪 Tue, 07 Nov 2006 14:47:00 GMT http://www.tkk7.com/energykk/archive/2006/11/07/79715.html http://www.tkk7.com/energykk/comments/79715.html http://www.tkk7.com/energykk/archive/2006/11/07/79715.html#Feedback 0 http://www.tkk7.com/energykk/comments/commentRss/79715.html http://www.tkk7.com/energykk/services/trackbacks/79715.html 瀵瑰叧緋誨瀷鏁版嵁搴撶鐞嗙郴緇烵rcale9i浣撶郴緇撴瀯鐨勫垵姝ヨ璇?/p>
棣栧厛鎴戜滑鍦ㄨ浜嗚ВOrcale9i涔嬪墠蹇呴』瑕佹竻妤氫互涓嬪嚑鐐? 灝監(jiān)racle9i鏈韓鑰岃█涓昏鍙互鍖哄垎涓轟袱涓儴鍒? 1.cale Instance(Orcale瀹炰緥). 2.cale9i Databases Files(Orcale鏁版嵁搴撴枃浠?. Orcale Instance鏄寚鏁版嵁搴撴湇鍔″櫒鐨勫唴瀛樹互鍙?qiáng)鐩稿厸_鐞嗙▼搴?br />Orcale Instance鍙堝寘鎷琒GA(緋葷粺鍏ㄥ眬鍖?浠ュ強(qiáng)Background Processes(鍚庡彴澶勭悊紼嬪簭)
SGA鍙堝寘鎷嚑涓噸瑕佺殑鍖哄煙(鍦ㄥ唴瀛樹腑鍒掑垎) 1.Database Buffer Cache(鍧楃紦鍐插尯楂橀熺紦瀛?:鐢ㄦ潵瀛樻斁璇誨彇鑷暟鎹枃浠剁殑鍓湰鎴栬呯畝鑰岀悊瑙d負(fù)鐢ㄦ埛鏇劇粡澶勭悊榪囩殑鏁版嵁,榪欐牱灝辮兘澶уぇ鐨勬彁楂樻暟鎹瓨鍙栫殑鏁堢巼鍥犱負(fù)浠栨湁鏁堢殑鍑忓皯浜嗘暟鎹湪紜洏涓婄殑I\O鎿嶄綔. 2.Redo Log Buffer(閲嶅仛鏃ュ織緙撳啿鍖?:璁板綍鏁版嵁搴撳唴鎵鏈夌殑鏁版嵁淇敼鍖虹畝鑰岃█涔嬪氨鏄鏁版嵁搴撶殑浠諱綍淇敼閮戒細(xì)浠栬褰?榪欐牱浠ヤ究鏁版嵁搴撹鎹熷潖鏃跺彲浠ヨ繘琛屽繀瑕佺殑淇鍚屾椂鍥犱負(fù)浠栨槸鍐呭瓨鍒板唴瀛樼殑鎿嶄綔鎵浠ュ張鍔犲揩 浜嗘暟鎹簱鐨勬搷浣滈熷害. 3.Shared Pool(鍏變韓姹?:涓轟粈涔堝彨浠栧叡浜睜鑰屼笉鍙粬鍏變韓鍖哄憿?鎴戣繖鏍瘋涓?鍥犱負(fù)浠栧叾涓繕鍖呮嫭浜嗕袱涓紦鍐插尯: 聽->Library Cache(SQL璇彞緙撳啿鍖?:褰撶敤鎴峰悜Orcale鎻愪氦涓涓猄QL璇彞鏃?璇ョ紦鍐插尯灝卞皢榪欐潯SQL璇彞榪涜鍒嗘瀽,榪欎釜榪囩▼綾諱技浜庣紪璇?榪欎細(xì)娑堣楄緝澶氱殑鏃墮棿,褰揙rcale瀹屾垚瀵硅繖鏉QL璇彞鍒嗘瀽榪囧悗,Orcale 聽聽 鑷姩灝嗗叾鍒嗘瀽緇撴灉淇濆瓨鍒癓ibrary Cache涓?榪欐牱褰揙rcale絎簩嬈℃墽琛岃SQL鏃?Orcale灝嗚嚜鍔ㄨ煩榪囪繖涓垎鏋愯繃紼?浠庤岄檷浣庝簡緋葷粺榪愯鐨勬椂闂? 聽->Data Dictionary(鏁版嵁瀛楀吀緙撳啿鍖?:鏄疧rcale鐗瑰湴涓烘暟鎹瓧鍏稿噯澶囩殑涓鍧楃紦鍐插尯,绱т緵Orcale鍐呴儴浣跨敤鍌ㄥ瓨Orcale緋葷粺淇℃伅,鎴戜滑鐢ㄥ浠栬繘琛屽お澶氱殑緇嗙┒. 娉?Shared Pool鏄疧rcale Instance鏈鍏抽敭鐨勫唴瀛樼墖孌? 4.鍏朵粬鐨勭紦鍐插尯.
Background Processes(鍚庡彴澶勭悊紼嬪簭)鍏朵腑涓昏鐨勫嚑涓繘紼? 1.DBWR(鏁版嵁鍐欒繘紼?:灝咲atabase Buffer Cache鍐呮敼鍔ㄨ繃鐨勬暟鎹潡鍐欏叆鍒扮‖鐩樺唴鐨勬暟鎹枃浠? 2.LGWR(鏃ュ織鍐欒繘紼?:灝嗛噸鍋氭棩蹇楃紦鍐插尯鍐呯殑鏇存敼鍐欏叆鍒扮‖鐩樹腑鐨勯噸鍋氭棩蹇楁枃浠? 3.SMON(緋葷粺鐩戞帶):鍦ㄥ洜涓哄悇縐嶅師鍥犻犳垚Orcale鏁版嵁搴撲笉姝e父鐨勮鍏抽棴,涓嬩竴嬈℃縺媧繪暟鎹簱鏃禨MON灝嗗敖琛屽繀瑕佺殑淇. 4.PMON(榪涚▼鐩戞帶):鍦ㄤ竴涓狾rcale榪涚▼澶辮觸鏃禤MON灝嗗璧勬簮榪涜娓呯悊. 5.CKPT(媯(gè)鏌ョ偣榪涚▼):鍦ㄦ瘡褰揇atabase Buffer Cache涓殑鏇存敼姘鎬箙鎬х殑璁板綍鍦ㄧ‖鐩樹腑鏃?鏇存柊鎺у埗鏂囦歡鍜屾暟鎹枃浠朵腑鐨勬暟鎹簱鐘舵佷俊鎭? 6.ARCH(褰掓。榪涚▼):鍦ㄦ瘡嬈℃棩蹇楀垏鎹㈡椂鎶婂凡婊$殑鏃ュ織緇勮繘琛屽浠芥垨褰掓。.
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Orcale9i Databases Files鏄寚涓昏鏀懼湪璁$畻鏈虹‖鐩樹笂鐨勫悇縐峅rcale9i鏁版嵁搴撴枃浠跺叾涓寘鎷? 1.鏁版嵁鏂囦歡 2.鎺у埗鏂囦歡 3.鏃ュ織鏂囦歡 浠ヤ笂涓変釜鏂囦歡鏄敱榪涚▼DBWR涓嶭GWR瀵逛粬浠繘琛屾搷浣?br />4.褰掓。鏃ュ織鏂囦歡 5.鍙傛暟鏂囦歡 6.鍙d護(hù)鏂囦歡,鐢ㄦ埛鐨勫簲鐢ㄦ潈闄?/p>
Orcale 鏁版嵁搴撶粨鏋? 1.閫昏緫緇撴瀯: 聽鏋勬垚鐨勪富瑕佺敱浠ヤ笅鍑犱釜閫昏緫閮ㄤ歡: 聽->鐨勫偍瀛樺崟浣嶅潡(data block). 聽->鍖?extends).闇瑕佹敞鎰忕殑鏄疧racle9i鍦ㄩ厤緗偍瀛樼┖闂存椂鏄互鍖轟負(fù)鍗曚綅鐨勮屼笉鏄渶灝忕殑鍌ㄥ瓨鍗曚綅鍧? 聽->孌?segement),鐢辮澶氬尯鏋勬垚 聽->琛ㄧ┖闂?Tablespace),Orcale9i鏁版嵁搴撴渶澶х殑鍌ㄥ瓨絀洪棿,璁稿孌墊瀯鎴? 聽Orcale9i鍚勯昏緫閮ㄤ歡瀛樺湪涓縐嶉樁灞傚叧緋? 聽->鏁版嵁瀛樺湪姣忎釜鏁版嵁鍧楀唴,鏁版嵁璇誨啓浠ュ潡涓哄崟浣?br />聽->絀洪棿閰嶇疆鏄互鍖轟負(fù)鍗曚綅,涓涓尯鐢變竴榪炰覆鏁版嵁鍧楁墍鏋勬垚 聽->渚濆疄闄呮暟鎹噺鐨勫灝?鏁版嵁鐢卞涓尯緇勬垚 聽->鏁版嵁琛ㄧ┖闂村彲浠ュ垝鍒嗕負(fù)涓嶅悓鐨勫尯孌?姣忎釜孌靛張鍖呮嫭浜嗚澶氬尯 聽->鍦ㄦ瘡涓狾rcale9i鏁版嵁搴撳唴鍙垝鍒嗕笉鍚岀殑琛ㄧ┖闂?鐢ㄤ互瀛樻斁涓嶅悓綾誨瀷鐨勬暟鎹?br />2.鐗╃悊緇撴瀯: 鐢卞悇縐峅rcale9i鏁版嵁搴撴枃浠舵瀯鎴?
娉ㄦ剰:涓涓疄渚嬫渶澶氬彧鑳藉畨瑁呭拰鎵撳紑鍦ㄤ竴涓暟鎹簱涓?鑰屼竴涓暟鎹簱鑳藉搴斿涓疄渚?鎵浠ュ湪寤虹珛鏁版嵁搴撲箣鍓?蹇呴』鍏堟寚瀹歄rcale瀹炰緥鐨勭郴緇熻〃紺虹(System Identifier),鍗砄rcale SID 鍥犱負(fù)鐢ㄦ潵鍖哄垎涓嶅悓鏁版嵁搴撴墍浠ID蹇呴』鏄敮涓鐨? 瀹炰緥涓昏璐熻矗鏁版嵁搴撶殑鐩稿簲鎿嶄綔騫朵笌鐢ㄦ埛浜や簰. 聽
聽
聽
聽
聽
聽
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