java将汉字改成对应首字母

import net.sourceforge.pinyin4j.PinyinHelper;

import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;

import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;

import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;

import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;

import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

public class ChineseToEnglish {

// 将汉字转换为全拼，,其他字符不变
public static String getPinYin(String src) {
src = src.replaceAll("（", "(").replaceAll("）", ")");
char[] t1 = null;
t1 = src.toCharArray();
String[] t2 = new String[t1.length];
HanyuPinyinOutputFormat t3 = new HanyuPinyinOutputFormat();
t3.setCaseType(HanyuPinyinCaseType.LOWERCASE);
t3.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
t3.setVCharType(HanyuPinyinVCharType.WITH_V);
String t4 = "";
int t0 = t1.length;
try {
for (int i = 0; i < t0; i++) {
// 判断是否为汉字字符
if (java.lang.Character.toString(t1[i]).matches("[\\u4E00-\\u9FA5]+")) {
t2 = PinyinHelper.toHanyuPinyinStringArray(t1[i], t3);
t4 += t2[0];
} else {
t4 += java.lang.Character.toString(t1[i]);
}
}
return t4;
} catch (BadHanyuPinyinOutputFormatCombination e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return t4;
}

// 返回中文的首字母，英文字符不变
public static String getPinYinFirst(String src) {
String temp = "";
String demo = "";
String convert = "";
for (int j = 0; j < src.length(); j++) {
char word = src.charAt(j);
String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
if (pinyinArray != null) {
convert += pinyinArray[0].charAt(0);
} else {
convert += word;
}
}
return convert;
// convert目前为小写首字母,下面是将小写首字母转化为大写
// for(int i=0;i<convert.length();i++){
// if(convert.charAt(i)>='a'&&convert.charAt(i)<='z'){
// temp=convert.substring(i, i+1).toUpperCase();
// demo+=temp;
// }
// }
}

// 将字符串转移为ASCII码
public static String getCnASCII(String str) {
StringBuffer sb = new StringBuffer();
byte[] bGBK = str.getBytes();
for (int i = 0; i < bGBK.length; i++) {
sb.append(Integer.toHexString(bGBK[i] & 0xff));
}
return sb.toString();
}

public static void main(String[] args) {
String str = "i love you  中华人民共和国  zr";
System.out.println(getPinYin(str));
System.out.println(getPinYinFirst(str));
System.out.println(getCnASCII(str));

}

}