Unicode与中文互转.docx

package com.test;/* * * UnicodeInterchangeChinese.java * * * Unicode与中文的互换 * * * author $liwn$ * version $1.0$ $2014-10-23$ */public class UnicodeInterchangeChinese public static void main(String args) throws Exception String aa = 中国; System.out.println(chinaToUnicode(aa); String bb = u4e2du56fd; System.out.println(unicodeToChina(bb); /* * 把中文转成Unicode码 * * param str * return * throws Exception */ public static String chinaToUnicode(String str) String result = ; try for (int i = 0; i = 19968 & chr1 = 171941) / 汉字范围 u4e00-u9fa5 (中文) result += u + Integer.toHexString(chr1); else result += str.charAt(i); catch (Exception e) e.printStackTrace(); return result; /* * 判断是否为中文字符 * * param c * return * throws Exception */ public static boolean isChinese(char c) throws Exception Character.UnicodeBlock ub = Character.UnicodeBlock.of(c); if (ub = Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS | ub = Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS | ub = Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A | ub = Character.UnicodeBlock.GENERAL_PUNCTUATION | ub = Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION | ub = Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) return true; else throw new Exception(c+非中文的。); /* * 把Unicode码转成中文 * * param in * return */ public static String unicodeToChina(String in) try return decode(in.toCharArray(); catch (Exception e) e.printStackTrace(); return in; /* * 单个字符进行处理 * * param in * return * throws Exception */ private static String decode(char in) throws Exception int off = 0; char c; char out = new charin.length; int outLen = 0; while (off off) / 是否有下一个字符 c = inoff+; / 取出下一个字符 else outoutLen+ = ; / 末字符为，返回 break; if (c = u) / 如果是u int value = 0; if (in.length off + 4) / 判断u后边是否有四个字符 boolean isUnicode = true; for (int i = 0; i 4; i+) / 遍历四个字符 c = inoff+; switch (c) case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: value = (value 4) + c - 0; break; case a: case b: case c: case d: case e: case f: value = (value 4) + 10 + c - a; break; case A: case B: case C: case D: case E: case F: value = (value 4) + 10 + c - A; break; default: isUnicode = false; / 判断是否为unicode码 if (isUnicode) / 是unicode码转换为字符 outoutLen+ = (char) value; else / 不是unicode码把uXXXX填入返回值 off = off - 4; outoutLen+ = ; outoutLen+ = u; outoutLen+ = inoff+; else / 不够四个字符则把u放入返回结果并继续 outoutLen+ = ; outoutLen+ = u; continue; else switch (c) / 判断后边是否接特殊字符，回车，tab一类的 case t: c = t; outoutLen+ = c; break; case r: c = r; outoutLen+ = c; break; case n: c = n; outoutLen+ = c; break; case f: c = f;