2
3 resultlistChoice.add(new AjaxFormComponentUpdatingBehavior("onclick") {
4
5 @Override
6 protected void onUpdate(AjaxRequestTarget target) {
7 // TODO Auto-generated method stub
8 }
9 });
10
11 resultlistChoice.add(new AjaxFormChoiceComponentUpdatingBehavior() {
12
13 @Override
14 protected void onUpdate(AjaxRequestTarget target) {
15 // TODO Auto-generated method stub
16 selectedList.clear();
17 for (String item : resultlistChoice.getModelObject()) {
18 selectedList.add(item);
19 System.out.println(item);
20 }
21 target.add(selectedChoice);
22 }
23 });
// 椹卞姩錛?nbsp;msbase.jar 銆?nbsp;mssqlserver.jar 銆?nbsp;msutil.jar // driver = "com.microsoft.jdbc.sqlserver.SQLServerDriver"; // url = "jdbc:microsoft:sqlserver://192.168.0.82:1433;databasename=JFGLD"; // 椹卞姩錛歫tds-1.2.jar // DB.DRIVER=net.sourceforge.jtds.jdbc.Driver // DB.URL=jdbc:jtds:sqlserver://localhost:1433/鏁版嵁搴撳悕;s=8.0;lastupdatecount=true鍦ㄤ粠鏁版嵁嫻侀噷璇誨彇鏁版嵁鏃訛紝涓哄浘綆鍗曪紝緇忓父鐢↖nputStream.read()鏂規(guī)硶銆傝繖涓柟娉曟槸浠庢祦閲屾瘡嬈″彧璇誨彇璇誨彇涓涓瓧鑺傦紝鏁堢巼浼?xì)闈炲告綆銆?nbsp; 鏇村ソ鐨勬柟娉曟槸鐢↖nputStream.read(byte[] b)鎴栬匢nputStream.read(byte[] b,int off,int len)鏂規(guī)硶錛屼竴嬈¤鍙栧涓瓧鑺傘?/p>
2. 鍏充簬InputStream綾葷殑available()鏂規(guī)硶
瑕佷竴嬈¤鍙栧涓瓧鑺傛椂錛岀粡甯哥敤鍒癐nputStream.available()鏂規(guī)硶錛岃繖涓柟娉曞彲浠ュ湪璇誨啓鎿嶄綔鍓嶅厛寰楃煡鏁版嵁嫻侀噷鏈夊灝戜釜瀛楄妭鍙互璇誨彇銆傞渶瑕佹敞鎰忕殑鏄紝濡傛灉榪欎釜鏂規(guī)硶鐢ㄥ湪浠庢湰
鍦版枃浠惰鍙栨暟鎹椂錛屼竴鑸笉浼?xì)閬囧埌闂锛屼絾濡傛灉鏄敤浜幘|戠粶鎿嶄綔錛屽氨緇忓父浼?xì)閬囧堫C竴浜涢夯鐑?chǔ)銆傛瘮濡傦紝Socket閫氳鏃訛紝瀵規(guī)柟鏄庢槑鍙戞潵浜?000涓瓧鑺傦紝浣嗘槸鑷繁鐨勭▼搴忚皟鐢╝vailable()鏂規(guī)硶鍗村彧寰楀埌900錛屾垨鑰?00錛岀敋鑷蟲槸0錛屾劅瑙夋湁鐐硅帿鍚嶅叾濡欙紝鎬庝箞涔熸壘涓嶅埌鍘熷洜銆傚叾瀹烇紝榪欐槸鍥犱負(fù)緗戠粶閫氳寰寰鏄棿鏂х殑錛屼竴涓插瓧鑺傚線寰鍒嗗嚑鎵硅繘琛屽彂閫併傛湰鍦扮▼搴忚皟鐢╝vailable()鏂規(guī)硶鏈夋椂寰楀埌0錛岃繖鍙兘鏄鏂硅繕娌℃湁鍝嶅簲錛屼篃鍙兘鏄鏂瑰凡緇忓搷搴斾簡(jiǎn)錛屼絾鏄暟鎹繕娌℃湁閫佽揪鏈湴銆傚鏂瑰彂閫佷簡(jiǎn)1000涓瓧鑺傜粰浣狅紝涔熻鍒嗘垚3鎵瑰埌杈撅紝榪欎綘灝辮璋冪敤3嬈vailable()鏂規(guī)硶鎵嶈兘灝嗘暟鎹繪暟鍏ㄩ儴寰楀埌銆?br />
濡傛灉榪欐牱鍐欎唬鐮侊細(xì)
int count = in.available();
byte[] b = new byte[count];
in.read(b);
鍦ㄨ繘琛岀綉緇滄搷浣滄椂寰寰鍑洪敊錛屽洜涓轟綘璋冪敤available()鏂規(guī)硶鏃訛紝瀵瑰彂鍙戦佺殑鏁版嵁鍙兘榪樻病鏈夊埌杈撅紝浣犲緱鍒扮殑count鏄?銆?br />
闇瑕佹敼鎴愯繖鏍鳳細(xì)
int count = 0;
while (count == 0) {
count = in.available();
}
byte[] b = new byte[count];
in.read(b);
3. 鍏充簬InputStream.read(byte[] b)鍜孖nputStream.read(byte[] b,int off,int len)榪欎袱涓柟娉曢兘鏄敤鏉ヤ粠嫻侀噷璇誨彇澶氫釜瀛楄妭鐨勶紝鏈夌粡楠岀殑紼嬪簭鍛樺氨浼?xì)鍙戠帋图寴q欎袱涓柟娉曠粡甯?璇誨彇涓嶅埌鑷繁鎯寵璇誨彇鐨勪釜鏁扮殑瀛楄妭銆傛瘮濡傜涓涓柟娉曪紝紼嬪簭鍛樺線寰甯屾湜紼嬪簭鑳借鍙栧埌b.length涓瓧鑺傦紝鑰屽疄闄呮儏鍐墊槸錛岀郴緇熷線寰璇誨彇涓嶄簡(jiǎn)榪欎箞澶氥備粩緇嗛槄璇籎ava鐨凙PI璇存槑灝卞彂鐜頒簡(jiǎn)錛岃繖涓柟娉?騫朵笉淇濊瘉鑳借鍙栬繖涔堝涓瓧鑺傦紝瀹冨彧鑳戒繚璇佹渶澶氳鍙栬繖涔堝涓瓧鑺?鏈灝?涓?銆傚洜姝わ紝濡傛灉瑕佽紼嬪簭璇誨彇count涓瓧鑺傦紝鏈濂界敤浠ヤ笅浠ｇ爜錛?br />
byte[] b = new byte[count];
int readCount = 0; // 宸茬粡鎴愬姛璇誨彇鐨勫瓧鑺傜殑涓暟
while (readCount < count) {
readCount += in.read(bytes, readCount, count - readCount);
}
鐢ㄨ繖孌典唬鐮佸彲浠ヤ繚璇佽鍙朿ount涓瓧鑺傦紝闄ら潪涓旈亣鍒癐O寮傚父鎴栬呭埌浜?jiǎn)鏁版嵁娴佺殑缁摓?EOFException)