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濂戒簡锛屽簾璇濅笉澶氾紝鐩存帴涓婁竴娈典唬鐮侊細
import java.io.UnsupportedEncodingException;
public class EncodingTest {
public static void main(String[] args) throws UnsupportedEncodingException {
String srcString = "鎴戜滑鏄腑鍥戒汉";
String utf2GbkString = new String(srcString.getBytes("UTF-8"),"GBK");
System.out.println("UTF-8杞崲鎴怗BK锛�"+utf2GbkString);
String utf2Gbk2UtfString = new String(utf2GbkString.getBytes("GBK"),"UTF-8");
System.out.println("UTF-8杞崲鎴怗BK鍐嶈浆鎴怳TF-8锛�"+utf2Gbk2UtfString);
}
}
鍥犱负UTF-8鍜孏BK鏄袱濂椾腑鏂囨敮鎸佽緝濂界殑缂栫爜锛屾墍浠ョ粡甯镐細杩涜瀹冧滑涔嬮棿鐨勮浆鎹紝杩欓噷灏变互瀹冧滑涓句緥銆�
浠ヤ笂浠ｇ爜杩愯鎵撳嵃鍑轰互涓嬪唴瀹癸細
UTF-8杞崲鎴怗BK锛氶幋鎴滄粦閺勵垯鑵戦崶鎴掓眽
UTF-8杞崲鎴怗BK鍐嶈浆鎴怳TF-8锛氭垜浠槸涓浗浜�
鎴戜滑鐪嬪埌锛屽皢"鎴戜滑鏄腑鍥戒汉"浠TF-8缂栫爜杞崲鎴恇yte鏁扮粍锛坆yte鏁扮粍鍏跺疄灏辩浉褰撲簬浜岃繘鍒跺簭鍒椾簡锛屾杩囩▼鍗崇紪鐮侊級锛屽啀浠BK缂栫爜鍜宐yte鏁扮粍鍒涘缓鏂扮殑瀛楃涓诧紙姝よ繃绋嬪嵆浠BK缂栫爜鍘昏В鐮乥yte鏁扮粍锛屽緱鍒板瓧绗︿覆锛夛紝灏变骇鐢熶贡鐮佷簡銆�
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鎬庝箞鏍凤紵缂栫爜杞崲鏄笉鏄痵o easy锛熼偅璇ユ潵鐐规缁忕殑浜嗭細
import java.io.UnsupportedEncodingException;
public class EncodingTest {
public static void main(String[] args) throws UnsupportedEncodingException {
String srcString = "鎴戜滑鏄腑鍥戒汉";
String gbk2UtfString = new String(srcString.getBytes("GBK"), "UTF-8");
System.out.println("GBK杞崲鎴怳TF-8锛�" + gbk2UtfString);
String gbk2Utf2GbkString = new String(gbk2UtfString.getBytes("UTF-8"), "GBK");
System.out.println("GBK杞崲鎴怳TF-8鍐嶈浆鎴怗BK锛�" + gbk2Utf2GbkString);
}
}
杩欐鎴戜滑鍙嶈繃鏉ワ紝鍏堝皢瀛楃涓蹭互GBK缂栫爜鍐嶄互UTF-8瑙ｇ爜锛屽啀浠TF-8缂栫爜锛屽啀浠BK瑙ｇ爜銆�
杩欐鐨勮繍琛岀粨鏋滄槸锛�
GBK杞崲鎴怳TF-8锛氾拷锟斤拷锟斤拷锟斤拷泄锟斤拷锟�
GBK杞崲鎴怳TF-8鍐嶈浆鎴怗BK锛氶敓鏂ゆ嫹閿熸枻鎷烽敓鏂ゆ嫹閿熷彨鐧告嫹閿熸枻鎷�
WTF锛燂紵涓囨伓鐨勨�滈敓鏂ゆ嫹鈥濓紝鐩镐俊涓嶅皯浜洪兘瑙佽繃銆傝繖閲孏BK杞垚UTF-8涔辩爜濂界悊瑙ｏ紝浣嗘槸鍐嶈浆鍥炴潵鎬庝箞鍙樻垚浜嗏�滈敓鏂ゆ嫹閿熸枻鎷烽敓鏂ゆ嫹閿熷彨鐧告嫹閿熸枻鎷封�濓紝杩欎技涔庝笉绉戝銆�
杩欏叾瀹炲拰UTF-8鐙壒鐨勭紪鐮佹柟寮忔湁鍏筹紝鐢变簬UTF-8闇�瑕佸unicode瀛楃杩涜缂栫爜锛寀nicode瀛楃闆嗘槸涓�涓嚑涔庢敮鎸佹墍鏈夊瓧绗︾殑瀛楃闆嗭紝涓轰簡琛ㄧず杩欎箞搴炲ぇ鐨勫瓧绗﹂泦锛孶TF-8鍙兘闇�瑕佹洿澶氱殑浜岃繘鍒朵綅鏉ヨ〃绀轰竴涓瓧绗︼紝鍚屾椂涓轰簡涓嶈嚧浣縐TF-8缂栫爜澶崰瀛樺偍绌洪棿锛屾牴鎹簩鍏畾寰嬶紝UTF-8閲囩敤浜嗕竴绉嶅彲鍙橀暱鐨勭紪鐮佹柟寮忥紝鍗冲皢甯哥敤鐨勫瓧绗︾紪鐮佹垚杈冪煭鐨勫簭鍒楋紝鑰屼笉甯哥敤鐨勫瓧绗︾敤杈冮暱鐨勫簭鍒楄〃绀猴紝杩欐牱璁╃紪鐮佸崰鐢ㄦ洿灏戝瓨鍌ㄧ┖闂寸殑鍚屾椂涔熶繚璇佷簡瀵瑰簽澶у瓧绗﹂泦鐨勬敮鎸併��
姝ｅ紡鐢变簬UTF-8閲囩敤鐨勮繖绉嶇壒鍒殑鍙橀暱缂栫爜鏂瑰紡锛岃繖涓�鐐瑰拰鍏朵粬鐨勭紪鐮佸緢涓嶄竴鏍枫�傛瘮濡侴BK鍥哄畾鐢ㄤ袱涓瓧鑺傛潵琛ㄧず姹夊瓧锛屼竴涓瓧鑺傛潵琛ㄧず鑻辨枃鍜屽叾浠栫鍙枫��
鏉ユ祴璇曚竴涓嬶細
import java.io.UnsupportedEncodingException;
public class EncodingTest {
public static void main(String[] args) throws UnsupportedEncodingException {
String srcString = "鎴戜滑鏄腑鍥戒汉";
byte[] GbkBytes = srcString.getBytes("GBK");
System.out.println("GbkBytes.length:" + GbkBytes.length);
byte[] UtfBytes = srcString.getBytes("UTF-8");
System.out.println("UtfBytes.length:" + UtfBytes.length);
String s;
for (int i = 0; i < srcString.length(); i++) {
s = Character.valueOf(srcString.charAt(i)).toString();
System.out.println(s + ":" + s.getBytes().length);
}
}
}
杩愯缁撴灉涓猴細
GbkBytes.length:12
UtfBytes.length:18
鎴�:3
浠�:3
鏄�:3
涓�:3
鍥�:3
浜�:3
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UTF-8缂栫爜鐨勮鍙栨柟寮忎篃姣旇緝涓嶅悓锛岄渶瑕佸厛璇诲彇绗竴涓瓧鑺傦紝鐒跺悗鏍规嵁杩欎釜瀛楄妭鐨勫�兼墠鑳藉垽鏂繖涓瓧鑺備箣鍚庤繕鏈夊嚑涓瓧鑺傚叡鍚屽弬涓庝竴涓瓧绗︾殑琛ㄧず銆�
瀵逛簬鏌愪竴涓瓧绗︾殑UTF-8缂栫爜锛屽鏋滃彧鏈変竴涓瓧鑺傚垯鍏舵渶楂樹簩杩涘埗浣嶄负0锛涘鏋滄槸澶氬瓧鑺傦紝鍏剁涓�涓瓧鑺備粠鏈�楂樹綅寮�濮嬶紝杩炵画鐨勪簩杩涘埗浣嶅�间负1鐨勪釜鏁板喅瀹氫簡鍏剁紪鐮佺殑浣嶆暟锛屽叾浣欏悇瀛楄妭鍧囦互10寮�澶淬�俇TF-8鏈�澶氬彲鐢ㄥ埌6涓瓧鑺傘�偮�
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4瀛楄妭 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
5瀛楄妭 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
6瀛楄妭 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
鍥犳UTF-8涓彲浠ョ敤鏉ヨ〃绀哄瓧绗︾紪鐮佺殑瀹為檯浣嶆暟鏈�澶氭湁31浣嶏紝鍗充笂琛ㄤ腑x鎵�琛ㄧず鐨勪綅銆傞櫎鍘婚偅浜涙帶鍒朵綅锛堟瘡瀛楄妭寮�澶寸殑10绛夛級锛岃繖浜泋琛ㄧず鐨勪綅涓嶶NICODE缂栫爜鏄竴涓�瀵瑰簲鐨勶紝浣嶉珮浣庨『搴忎篃鐩稿悓銆�
瀹為檯灏哢NICODE杞崲涓篣TF-8缂栫爜鏃跺簲鍏堝幓闄ら珮浣�0锛岀劧鍚庢牴鎹墍鍓╃紪鐮佺殑浣嶆暟鍐冲畾鎵�闇�鏈�灏忕殑UTF-8缂栫爜浣嶆暟銆�
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