如下所示：

package test.com.gjob.services; import java.util.Properties; public class Test { public static void main(String[] args) { String s = "简介"; String tt = gbEncoding(s); // String tt1 = "你好，我想给你说一个事情"; System.out.println(decodeUnicode("\\u7b80\\u4ecb")); // System.out.println(decodeUnicode(tt1)); System.out.println(HTMLDecoder.decode("中国")); String s1 = "\u7b80\u4ecb"; System.out.println(s.indexOf("\\")); } public static String gbEncoding(final String gbString) { char[] utfBytes = gbString.toCharArray(); String unicodeBytes = ""; for (int byteIndex = 0; byteIndex < utfBytes.length; byteIndex++) { String hexB = Integer.toHexString(utfBytes[byteIndex]); if (hexB.length() <= 2) { hexB = "00" + hexB; } unicodeBytes = unicodeBytes + "\\u" + hexB; } System.out.println("unicodeBytes is: " + unicodeBytes); return unicodeBytes; } 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) { 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; } return buffer.toString(); } }public static String decodeUnicode(String theString) { char aChar; int len = theString.length(); StringBuffer outBuffer = new StringBuffer(len); for (int x = 0; x < len;) { aChar = theString.charAt(x++); if (aChar == '\\') { aChar = theString.charAt(x++); if (aChar == 'u') { // Read the xxxx int value = 0; for (int i = 0; i < 4; i++) { aChar = theString.charAt(x++); switch (aChar) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': value = (value << 4) + aChar - '0'; break; case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': value = (value << 4) + 10 + aChar - 'a'; break; case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': value = (value << 4) + 10 + aChar - 'A'; break; default: throw new IllegalArgumentException( "Malformed \\uxxxx encoding."); } } outBuffer.append((char) value); } else { if (aChar == 't') aChar = '\t'; else if (aChar == 'r') aChar = '\r'; else if (aChar == 'n') aChar = '\n'; else if (aChar == 'f') aChar = '\f'; outBuffer.append(aChar); } } else outBuffer.append(aChar); } return outBuffer.toString(); }

以上这篇java中unicode和中文相互转换的简单实现就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。