java中⽂和unicode编码相互转换（转）代码如下：
import java.io.UnsupportedEncodingException;
public class TestUnicode{
public static void main(String[] args) throws UnsupportedEncodingException {
String s = "简介";
System.out.println(s+" --的unicode编码是："+gbEncoding(s));
System.out.println(gbEncoding(s) + " --转换成中⽂是："+decodeUnicode(gbEncoding(s)));
//System.out.println(gbEncoding(s) + " --转换成中⽂是："+decodeUnicode("\\u7b80\\u4ecb"));
}
/*
* 中⽂转unicode编码
*/
public static String gbEncoding(final String gbString) {
char[] utfBytes = CharArray();
String unicodeBytes = "";
for (int i = 0; i < utfBytes.length; i++) {
String hexB = HexString(utfBytes[i]);
if (hexB.length() <= 2) {
hexB = "00" + hexB;
}
unicodeBytes = unicodeBytes + "\\u" + hexB;
}
return unicodeBytes;
}
/*
* unicode编码转中⽂
*/
public static String decodeUnicode(final String dataStr) {
int start = 0;
int end = 0;
final StringBuffer buffer = new StringBuffer();
while (start > -1) {
end = dataStr.indexOf("\\u", start + 2);
String charStr = "";
if (end == -1) {
中文字符unicode查询charStr = dataStr.substring(start + 2, dataStr.length());
} else {
charStr = dataStr.substring(start + 2, end);
}
char letter = (char) Integer.parseInt(charStr, 16); // 16进制parse整形字符串。
buffer.append(new Character(letter).toString());
start = end;
}
String();
}
}

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