package com.stylefeng.guns.core.util;
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import java.util.Random;
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/***
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*
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* 得到中文首字母
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*
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* @author lxm_09
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*
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*/
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public class PingYinUtil {
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public static void main(String[] args) {
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String str = "这是一个测试";
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System.out.println("中文首字母：" + getPYIndexStr(str, true));
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}
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/**
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* 返回首字母
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*/
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public static String getPYIndexStr(String strChinese, boolean bUpCase) {
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try {
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StringBuffer buffer = new StringBuffer();
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byte b[] = strChinese.getBytes("GBK");// 把中文转化成byte数组
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for (int i = 0; i < b.length; i++) {
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if ((b[i] & 255) > 128) {
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int char1 = b[i++] & 255;
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char1 <<= 8;// 左移运算符用“<<”表示，是将运算符左边的对象，向左移动运算符右边指定的位数，并且在低位补零。其实，向左移n位，就相当于乘上2的n次方
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int chart = char1 + (b[i] & 255);
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buffer.append(getPYIndexChar((char) chart, bUpCase));
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continue;
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}
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char c = (char) b[i];
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if (!Character.isJavaIdentifierPart(c))// 确定指定字符是否可以是 Java
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// 标识符中首字符以外的部分。
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c = 'A';
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buffer.append(c);
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}
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return buffer.toString();
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} catch (Exception e) {
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System.out.println((new StringBuilder()).append("\u53D6\u4E2D\u6587\u62FC\u97F3\u6709\u9519")
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.append(e.getMessage()).toString());
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}
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return null;
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}
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/**
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* 得到首字母
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*/
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private static char getPYIndexChar(char strChinese, boolean bUpCase) {
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int charGBK = strChinese;
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char result;
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if (charGBK >= 45217 && charGBK <= 45252)
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result = 'A';
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else
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if (charGBK >= 45253 && charGBK <= 45760)
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result = 'B';
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else
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if (charGBK >= 45761 && charGBK <= 46317)
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result = 'C';
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else
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if (charGBK >= 46318 && charGBK <= 46825)
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result = 'D';
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else
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if (charGBK >= 46826 && charGBK <= 47009)
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result = 'E';
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else
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if (charGBK >= 47010 && charGBK <= 47296)
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result = 'F';
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else
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if (charGBK >= 47297 && charGBK <= 47613)
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result = 'G';
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else
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if (charGBK >= 47614 && charGBK <= 48118)
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result = 'H';
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else
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if (charGBK >= 48119 && charGBK <= 49061)
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result = 'J';
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else
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if (charGBK >= 49062 && charGBK <= 49323)
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result = 'K';
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else
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if (charGBK >= 49324 && charGBK <= 49895)
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result = 'L';
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else
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if (charGBK >= 49896 && charGBK <= 50370)
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result = 'M';
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else
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if (charGBK >= 50371 && charGBK <= 50613)
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result = 'N';
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else
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if (charGBK >= 50614 && charGBK <= 50621)
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result = 'O';
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else
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if (charGBK >= 50622 && charGBK <= 50905)
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result = 'P';
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else
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if (charGBK >= 50906 && charGBK <= 51386)
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result = 'Q';
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else
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if (charGBK >= 51387 && charGBK <= 51445)
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result = 'R';
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else
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if (charGBK >= 51446 && charGBK <= 52217)
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result = 'S';
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else
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if (charGBK >= 52218 && charGBK <= 52697)
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result = 'T';
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else
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if (charGBK >= 52698 && charGBK <= 52979)
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result = 'W';
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else
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if (charGBK >= 52980 && charGBK <= 53688)
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result = 'X';
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else
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if (charGBK >= 53689 && charGBK <= 54480)
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result = 'Y';
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else
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if (charGBK >= 54481 && charGBK <= 55289)
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result = 'Z';
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else
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result = (char) (65 + (new Random()).nextInt(25));
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if (!bUpCase)
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result = Character.toLowerCase(result);
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return result;
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}
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}
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