涓銆丣ava涓枃闂鐨勭敱鏉?/b>
Java鐨勫唴鏍稿拰class鏂囦歡鏄熀浜巙nicode鐨勶紝榪欎嬌Java紼嬪簭鍏鋒湁鑹ソ鐨勮法騫沖彴鎬э紝浣嗕篃甯︽潵浜嗕竴浜涗腑鏂囦貢鐮侀棶棰樼殑楹葷儲銆傚師鍥犱富瑕佹湁涓ゆ柟闈紝Java鍜孞SP鏂囦歡鏈韓緙栬瘧鏃朵駭鐢熺殑涔辯爜闂鍜孞ava紼嬪簭浜庡叾浠栧獟浠嬩氦浜掍駭鐢熺殑涔辯爜闂銆?/p>
棣栧厛Java錛堝寘鎷琂SP錛夋簮鏂囦歡涓緢鍙兘鍖呭惈鏈変腑鏂囷紝鑰孞ava鍜孞SP婧愭枃浠剁殑淇濆瓨鏂瑰紡鏄熀浜庡瓧鑺傛祦鐨勶紝濡傛灉Java鍜孞SP緙栬瘧鎴恈lass鏂囦歡榪囩▼涓紝浣跨敤鐨勭紪鐮佹柟寮忎笌婧愭枃浠剁殑緙栫爜涓嶄竴鑷達(dá)紝灝變細(xì)鍑虹幇涔辯爜銆傚熀浜庤繖縐嶄貢鐮侊紝寤鴻鍦↗ava鏂囦歡涓敖閲忎笉瑕佸啓涓枃錛堟敞閲婇儴鍒嗕笉鍙備笌緙栬瘧錛屽啓涓枃娌″叧緋伙級錛屽鏋滃繀欏誨啓鐨勮瘽錛屽敖閲忔墜鍔ㄥ甫鍙傛暟錛峞coding GBK鎴栵紞ecoding gb2312緙栬瘧錛涘浜嶫SP錛屽湪鏂囦歡澶村姞涓?lt;%@ page contentType="text/html;charset=GBK"%>鎴?lt;%@ page contentType="text/html;charset=gb2312"%>鍩烘湰涓婂氨鑳借В鍐寵繖綾諱貢鐮侀棶棰樸?/p>
鏈枃瑕侀噸鐐硅璁虹殑鏄浜岀被涔辯爜錛屽嵆Java紼嬪簭涓庡叾浠栧瓨鍌ㄥ獟浠嬩氦浜掓椂浜х敓鐨勪貢鐮併傚緢澶氬瓨鍌ㄥ獟浠嬶紝濡傛暟鎹簱錛屾枃浠訛紝嫻佺瓑鐨勫瓨鍌ㄦ柟寮忛兘鏄熀浜庡瓧鑺傛祦鐨勶紝Java紼嬪簭涓庤繖浜涘獟浠嬩氦浜掓椂灝變細(xì)鍙戠敓瀛楃(char)涓庡瓧鑺?byte)涔嬮棿鐨勮漿鎹紝鍏蜂綋鎯呭喌濡備笅錛?/p>
浠庨〉闈orm鎻愪氦鏁版嵁鍒癹ava紼嬪簭 byte錛?gt;char
浠巎ava紼嬪簭鍒伴〉闈㈡樉紺?char鈥?gt;byte
浠庢暟鎹簱鍒癹ava紼嬪簭 byte鈥?gt;char
浠巎ava紼嬪簭鍒版暟鎹簱 char鈥?gt;byte
浠庢枃浠跺埌java紼嬪簭 byte錛?gt;char
浠巎ava紼嬪簭鍒版枃浠?char錛?gt;byte
浠庢祦鍒癹ava紼嬪簭 byte錛?gt;char
浠巎ava紼嬪簭鍒版祦 char錛?gt;byte
濡傛灉鍦ㄤ互涓婅漿鎹㈣繃紼嬩腑浣跨敤鐨勭紪鐮佹柟寮忎笌瀛楄妭鍘熸湁鐨勭紪鐮佷笉涓鑷達(dá)紝寰堝彲鑳藉氨浼?xì)鍑虹庮C貢鐮併?/p>
浜屻佽В鍐蟲柟娉?/b>
鍓嶉潰宸茬粡鎻愬埌浜咼ava紼嬪簭涓庡叾浠栧獟浠嬩氦浜掓椂瀛楃鍜屽瓧鑺傜殑杞崲榪囩▼錛屽鏋滆繖浜涜漿鎹㈣繃紼嬩腑瀹規(guī)槗浜х敓涔辯爜銆傝В鍐寵繖浜涗貢鐮侀棶棰樼殑鍏抽敭鍦ㄤ簬紜繚杞崲鏃朵嬌鐢ㄧ殑緙栫爜鏂瑰紡涓庡瓧鑺傚師鏈夌殑緙栫爜鏂瑰紡淇濇寔涓鑷達(dá)紝涓嬮潰鍒嗗埆璁鴻堪錛圝ava鎴朖SP鑷韓浜х敓鐨勪貢鐮佽鍙傜湅絎竴閮ㄥ垎錛夈?/p>
1銆丣SP涓庨〉闈㈠弬鏁頒箣闂寸殑涔辯爜
JSP鑾峰彇欏甸潰鍙傛暟鏃朵竴鑸噰鐢ㄧ郴緇熼粯璁ょ殑緙栫爜鏂瑰紡錛屽鏋滈〉闈㈠弬鏁扮殑緙栫爜綾誨瀷鍜岀郴緇熼粯璁ょ殑緙栫爜綾誨瀷涓嶄竴鑷達(dá)紝寰堝彲鑳藉氨浼?xì)鍑虹庮C貢鐮併傝В鍐寵繖綾諱貢鐮侀棶棰樼殑鍩烘湰鏂規(guī)硶鏄湪欏甸潰鑾峰彇鍙傛暟涔嬪墠錛屽己鍒舵寚瀹歳equest鑾峰彇鍙傛暟鐨勭紪鐮佹柟寮忥細(xì)request.setCharacterEncoding("GBK")鎴杛equest.setCharacterEncoding("gb2312")銆?br />濡傛灉鍦↗SP灝嗗彉閲忚緭鍑哄埌欏甸潰鏃跺嚭鐜頒簡涔辯爜錛屽彲浠ラ氳繃璁劇疆response.setContentType("text/html;charset=GBK")鎴杛esponse.setContentType("text/html;charset=gb2312")瑙ｅ喅銆?br />濡傛灉涓嶆兂鍦ㄦ瘡涓枃浠墮噷閮藉啓榪欐牱涓ゅ彞璇濓紝鏇寸畝媧佺殑鍔炴硶鏄嬌鐢⊿ervlet瑙勮寖涓殑榪囪檻鍣ㄦ寚瀹氱紪鐮侊紝榪囨護(hù)鍣ㄧ殑鍦╳eb.xml涓殑鍏稿瀷閰嶇疆鍜屼富瑕佷唬鐮佸涓嬶細(xì)
web.xml:
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>net.vschool.web.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
CharacterEncodingFilter.java:
public class CharacterEncodingFilter implements Filter
{
protected String encoding = null;
public void init(FilterConfig filterConfig) throws ServletException
{
this.encoding = filterConfig.getInitParameter("encoding");
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException
{
request.setCharacterEncoding(encoding);
response.setContentType("text/html;charset="+encoding);
chain.doFilter(request, response);
}
}
2銆丣ava涓庢暟鎹簱涔嬮棿鐨勪貢鐮?/b>
澶ч儴鍒嗘暟鎹簱閮芥敮鎸佷互unicode緙栫爜鏂瑰紡錛屾墍浠ヨВ鍐矹ava涓庢暟鎹簱涔嬮棿鐨勪貢鐮侀棶棰樻瘮杈冩槑鏅虹殑鏂瑰紡鏄洿鎺ヤ嬌鐢╱nicode緙栫爜涓庢暟鎹簱浜や簰銆傚緢澶氭暟鎹簱椹卞姩鑷姩鏀寔unicode錛屽Microsoft鐨凷QLServer椹卞姩銆傚叾浠栧ぇ閮ㄥ垎鏁版嵁搴撻┍鍔紝鍙互鍦ㄩ┍鍔ㄧ殑url鍙傛暟涓寚瀹氾紝濡傚mm鐨刴ysql椹卞姩錛歫dbc:mysql://localhost/WEBCLDB?useUnicode=true&characterEncoding=GBK銆?/p>
3銆丣ava涓庢枃浠?嫻佷箣闂寸殑涔辯爜
Java璇誨啓鏂囦歡鏈甯哥敤鐨勭被鏄疐ileInputStream/FileOutputStream鍜孎ileReader/FileWriter銆傚叾涓璅ileInputStream鍜孎ileOutputStream鏄熀浜庡瓧鑺傛祦鐨勶紝甯哥敤浜庤鍐欎簩榪涘埗鏂囦歡銆傝鍐欏瓧絎︽枃浠跺緩璁嬌鐢ㄥ熀浜庡瓧絎︾殑FileReader鍜孎ileWriter錛岀渷鍘諱簡瀛楄妭涓庡瓧絎︿箣闂寸殑杞崲銆備絾榪欎袱涓被鐨勬瀯閫犲嚱鏁伴粯璁や嬌鐢ㄧ郴緇熺殑緙栫爜鏂瑰紡錛屽鏋滄枃浠跺唴瀹逛笌緋葷粺緙栫爜鏂瑰紡涓嶄竴鑷達(dá)紝鍙兘浼?xì)鍑虹庮C貢鐮併傚湪榪欑鎯呭喌涓嬶紝寤鴻浣跨敤FileReader鍜孎ileWriter鐨勭埗綾伙細(xì)InputStreamReader/OutputStreamWriter錛屽畠浠篃鏄熀浜庡瓧絎︾殑錛屼絾鍦ㄦ瀯閫犲嚱鏁頒腑鍙互鎸囧畾緙栫爜綾誨瀷錛欼nputStreamReader(InputStream in, Charset cs) 鍜孫utputStreamWriter(OutputStream out, Charset cs)銆?
4銆佸叾浠?/b>
涓婇潰鎻愬埌鐨勬柟娉曞簲璇ヨ兘瑙ｅ喅澶ч儴鍒嗕貢鐮侀棶棰橈紝濡傛灉鍦ㄥ叾浠栧湴鏂硅繕鍑虹幇涔辯爜錛屽彲鑳介渶瑕佹墜鍔ㄤ慨鏀逛唬鐮併傝В鍐矹ava涔辯爜闂鐨勫叧閿湪浜庡湪瀛楄妭涓庡瓧絎︾殑杞崲榪囩▼涓紝浣犲繀欏葷煡閬撳師鏉ュ瓧鑺傛垨杞崲鍚庣殑瀛楄妭鐨勭紪鐮佹柟寮忥紝杞崲鏃墮噰鐢ㄧ殑緙栫爜蹇呴』涓庤繖涓紪鐮佹柟寮忎繚鎸佷竴鑷淬傛垜浠互鍓嶄嬌鐢≧esin鏈嶅姟鍣紝浣跨敤smartUpload緇勪歡涓婁紶鏂囦歡錛屼笂浼犳枃浠跺悓鏃朵紶閫掔殑涓枃鍙傛暟鑾峰彇娌℃湁涔辯爜闂銆傚綋鍦↙inux涓妸Resin璁劇疆鎴愭湇鍔″悗錛屼笂浼犳枃浠跺悓鏃剁殑涓枃鍙傛暟鑾峰彇鍑虹幇浜嗕貢鐮併傝繖涓棶棰樺洶鎵頒簡鎴戜滑寰堜箙錛屽悗鏉ユ垜浠垎鏋恠martUpload緇勪歡鐨勬簮鏂囦歡錛屽洜涓烘枃浠朵笂浼犻噰鐢ㄧ殑鏄瓧鑺傛祦鐨勬柟寮忥紝閲岄潰鍖呭惈鐨勫弬鏁板悕縐板拰鍊間篃鏄瓧鑺傛祦鐨勬柟寮忎紶閫掔殑銆俿martUpload緇勪歡璇誨彇瀛楄妭嫻佸悗鍐嶅皢鍙傛暟鍚嶇О鍜屽間粠瀛楄妭嫻佷腑瑙ｆ瀽鍑烘潵錛岄棶棰樺氨鍑虹幇鍦╯martUpload灝嗗瓧鑺傛祦杞崲鎴愬瓧絎︿覆鏃墮噰鐢ㄤ簡緋葷粺榛樿鐨勭紪鐮侊紝鑰屽皢Resin璁劇疆鎴愭湇鍔″悗錛岀郴緇熼粯璁ょ殑緙栫爜鍙兘鍙戠敓浜嗘敼鍙橈紝鍥犳鍑虹幇浜嗕貢鐮併傚悗鏉ワ紝鎴戜滑鏇存敼浜唖martUpload鐨勬簮鏂囦歡錛屽鍔犱簡涓涓睘鎬harset鍜宻etCharset(String)鏂規(guī)硶錛屽皢upload()鏂規(guī)硶涓彁鍙栧弬鏁拌鍙ワ細(xì)
String value = new String(m_binArray, m_startData, (m_endData - m_startData) + 1 );
鏀規(guī)垚浜?br />String value = new String(m_binArray, m_startData, (m_endData - m_startData) + 1, charset );
緇堜簬瑙ｅ喅浜嗚繖涓貢鐮侀棶棰樸?/p>
涓夈佸悗璁?/b>
鎺ヨЕJava鍜孞SP宸茬粡鏈変竴騫村浜嗭紝榪欎竴騫存潵鏈澶х殑鏀惰幏鏄秺鏉ヨ秺鍠滄涓婁簡Java錛屽紑濮嬫妸闂褰撲綔涔愪簨鍘葷爺絀訛紝娌℃湁浜嗕互鍓嶇殑鎭愭儳蹇冪悊錛屾垜鐩鎬俊鎴戜細(xì)緇х畫鍧氭寔涓嬪幓銆傝繖涓騫存潵錛屼粠緗戜笂瀛︿範(fàn)浜嗗緢澶氬悓琛岀殑瀹濊吹緇忛獙錛屽湪姝よ〃紺烘劅璋€傝繖鏄垜絎竴綃囪嚜宸辨葷粨鐨凧ava瀛︿範(fàn)蹇冨緱錛岀敱浜庢按騫蟲湁闄愶紝鏈枃涓亸棰囧拰閿欒涔嬪錛屾榪庢寚姝ｃ傚鏋滃浣犳湁浜涗環(huán)鍊鹼紝鍦ㄤ繚鐣欎綔鑰呬俊鎭拰鏂囩珷鍘熷鍑哄鐨勫墠鎻愪笅鍙互闅忓杞澆銆?br />鎾板啓璇ユ枃涔嬪墠宸插弬鑰冧簡寰堝鍏充簬Java涓枃闂鐨勬枃绔狅紝鍏朵腑褰卞搷姣旇緝澶х殑鏈塷wen1944鍦ㄢ淛ava鐮旂┒緇勭粐鈥濅腑鍙戣〃鐨勩婅繖鏄垜浠叕鍙告葷粨鐨勪竴浜涘叧浜庝腑鏂囦貢鐮侀棶棰樼殑涓浜涜В鍐蟲柟妗堝拰緇忛獙鍜屽ぇ瀹跺垎浜紒銆嬬瓑銆傛湰鏂囪皥鍒扮殑瑙ｅ喅鏂規(guī)硶宸插簲鐢ㄥ埌鈥滃熀浜庣綉緇滅殑鍗忎綔瀛︿範(fàn)緋葷粺錛峎ebCL鈥?/a>絳夐」鐩腑錛屽茍閫氳繃璧勬簮緇戝畾鐨勬柟寮忓疄鐜頒簡璇ュ鉤鍙頒腑鏂囨枃涓や釜鐗堟湰鐨勫嵆鏃跺垏鎹€侴oogle鏍規(guī)嵁嫻忚鍣ㄨ嚜鍔ㄩ夋嫨璇█錛屼竴涓〉闈㈠悓鏃舵樉紺哄縐嶈璦鐨勫浗闄呭寲搴旂敤鍜岃濺涓滅殑銆奐ava涓枃澶勭悊瀛︿範(fàn)絎旇鈥斺擧ello Unicode銆?/a>涓鏂囧紩璧蜂簡鎴戞瀬澶х殑鍏磋叮錛屾棩鍚庢兂灝嗙戶緇帰璁↗ava鐨勫浗闄呭寲闂錛屾榪庡ぇ瀹朵竴璧瘋璁恒?br />
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