java汉字和unicode互转

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package com.imiansha.baseframe.commom.util;import java.lang.Character.UnicodeBlock;/** * @ClassName UnicodeTool.java * @Description 类实现描述:汉字和unicode互转 * @author leon 2015年12月11日 上午10:57:28 * @CopyRight 安徽中方电子商务有限公司 */public class UnicodeTool {    /**     * 中文转换成 unicode     *      * @author leon 2016-3-15     * @param inStr     * @return     */    public static String encodeUnicode(String inStr) {        char[] myBuffer = inStr.toCharArray();        StringBuffer sb = new StringBuffer();        for (int i = 0; i < inStr.length(); i++) {            char ch = myBuffer[i];            if (ch < 10) {                sb.append("\\u000" + (int) ch);                continue;            }            UnicodeBlock ub = UnicodeBlock.of(ch);            if (ub == UnicodeBlock.BASIC_LATIN) {                // 英文及数字等                sb.append(myBuffer[i]);            } else if (ub == UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {                // 全角半角字符                int j = myBuffer[i] - 65248;                sb.append((char) j);            } else {                // 汉字                int s = myBuffer[i];                String hexS = Integer.toHexString(Math.abs(s));                String unicode = "\\u" + hexS;                sb.append(unicode.toLowerCase());            }        }        return sb.toString();    }    /**     * unicode 转换成 中文     *      * @author leon 2016-3-15     * @param theString     * @return     */    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();    }}
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