将汉字转成拼音

转成拼音工具类：

package utils;

import net.sourceforge.pinyin4j.PinyinHelper;

public class PinyinUtils {
    /**
     * 提取每个汉字的首字母
     * 
     * @param str
     * @return String
     */
    public static String getPinYinHeadChar(String str) {
        String convert = "";
        for (int j = 0; j < str.length(); j++) {
            char word = str.charAt(j);
            // 提取汉字的首字母

            String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
            if (pinyinArray != null) {
                convert += pinyinArray[0].charAt(0);
            } else {
                convert += word;
            }
        }
        return convert;
    }

    /**
     * 获取汉字完整拼音
     * 
     * @param str
     * @return
     */
    public static String getPinYin(String str) {
        String value = "";
        for (int j = 0; j < str.length(); j++) {
            char word = str.charAt(j);
            String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
            if (pinyinArray != null) {
                value += pinyinArray[0].substring(0,
                        pinyinArray[0].length() - 1);
            }
        }
        return value;
    }
}

测试类：

package szoa;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class testPinyin {
    

    public static void main(String[] args) throws IOException {
        
        String filename = "C:\Users\sjx\Desktop\a.txt";
        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filename), "utf-8")); //这里可以控制编码
        String line = null;
        BufferedWriter  out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("C:\Users\sjx\Desktop\b.txt",true)));
        while ((line = br.readLine()) != null) {
         line = PinyinUtils.getPinYin(line);
          out.write(line + "
");
        }
        out.close();
    }
}