import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class TestMain {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		final String fromName = "e:\\unicode_to_hanyu_pinyin.txt";
	    final String toName = "e:\\unicode_to_simple_pinyin.txt";
		TestMain t=new TestMain();
		t.convert(fromName,toName);
	}

	public void convert(String fromFile,String toFile) {
		 
        try {
        	BufferedWriter writer = new BufferedWriter(new FileWriter(new File(toFile)));
        	BufferedReader reader = new BufferedReader(new FileReader(new File(fromFile)));
            String tempString = null;
            int line = 1;
            while ((tempString = reader.readLine()) != null) {
                // 显示行号
                String pre=getPre(tempString);//获得“(”前面部分
                
                String[] t=getMiddle(tempString);//
                String s="";
                for(int i=0;i<t.length;i++){
                	String sub=t[i].substring(0, 1);
                	if(i+1<t.length){//去掉重复项
                		String sub2=t[i+1].substring(0, 1);
                		if(sub.equals(sub2)){
                			continue;
                		}
                	}
                	s+=","+sub;
                }
                s=pre+s.substring(1)+")";
                writer.write(s);
                writer.newLine();
                line++;
            }
            reader.close();
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        } 
        
    }
	
	private String getPre(String pinyinRecord){
		int indexOfLeftBracket = pinyinRecord.indexOf("(")+1;
		 String stripedString = pinyinRecord.substring(0,indexOfLeftBracket);
		 return stripedString;
	}
	
	private String[] getMiddle(String pinyinRecord){
            int left= pinyinRecord.indexOf("(");
            int right= pinyinRecord.lastIndexOf(")");
            String middle = pinyinRecord.substring(left+ "(".length(), right);
            return middle.split(",");
    }
}

package com.ql.util;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

public class PinYin4j {
	
	
	public PinYin4j(){
	}
	/**
	 * 字符串集合转换字符串(逗号分隔)，测试用
	 * 
	 * @param stringSet
	 * @return
	 */
	public String makeStringByStringSet(Set<String> stringSet) {
		StringBuilder str = new StringBuilder();
		int i = 0;
		for (String s : stringSet) {
			if (i == stringSet.size() - 1) {
				str.append(s);
			} else {
				str.append(s + ",");
			}
			i++;
		}
		return str.toString().toLowerCase();
	}

	
	/**
	 * 获取拼音集合
	 * 
	 * @author wyh
	 * @param src
	 * @return Set<String>
	 */
	public Set<String> getPinyin(String src) {
			char[] srcChar;
			srcChar = src.toCharArray();

			//1:多少个汉字
			//2:每个汉字多少种读音
			String[][] temp = new String[src.length()][];
			for (int i = 0; i < srcChar.length; i++) {
				char c = srcChar[i];
				// 是中文或者a-z或者A-Z转换拼音(我的需求，是保留中文或者a-z或者A-Z)
				if (String.valueOf(c).matches("[\\u4E00-\\u9FA5]+")) {//中文
						String[] t = PinyinHelper.getUnformattedHanyuPinyinStringArray(c);
						temp[i] = new String[t.length];
						for(int j=0;j<t.length;j++){
//							temp[i][j]=t[j].substring(0,1);//获取首字母
							temp[i][j]=t[j];//获取首字母，不需要再截取了
						}
				} else if (((int) c >= 65 && (int) c <= 90)
						|| ((int) c >= 97 && (int) c <= 122)
						||c>=48&&c<=57||c==42) {//a-zA-Z0-9*
					temp[i] = new String[] { String.valueOf(srcChar[i]) };
				} else {
					temp[i] = new String[] {"null!"};
				}
				
			}
			return paiLie(temp);//直接返回Set
	}
	
	/*
	 * 求2维数组所有排列组合情况
	 * 比如:{{1,2},{3},{4},{5,6}}共有2中排列,为:1345,1346,2345,2346
	 */
	private Set<String> paiLie(String[][] str){
		int max=1;
		for(int i=0;i<str.length;i++){
			max*=str[i].length;
		}
		Set<String> result=new HashSet<String>();
		for(int i = 0; i < max; i++){
            String s = "";
            int temp = 1;      //注意这个temp的用法。
            for(int j = 0; j < str.length; j++){
                temp *= str[j].length;
                s += str[j][i / (max / temp) % str[j].length];
            }
            result.add(s);
	    }
		
		return result;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		//nongyeyinheng,nongyeyinhang,nongyeyinxing
		PinYin4j t=new PinYin4j();
		String str = "农业银行1234567890abcdefghijklmnopqrstuvwxyz*";
		System.out.println(t.makeStringByStringSet(t.getPinyin(str)));
	}

}