有时，我们需要将中文汉字转为拼音存储，例如用于检索时，直接输入拼音或者首字母也能检索出我们想要的结果，这时我们便需要将汉字转拼音

• 1、首先我们在 pom.xml 文件中引入需要的 maven 依赖

<!-- 汉字转拼音 -->
<dependency>
	<groupId>com.belerweb</groupId>
	<artifactId>pinyin4j</artifactId>
	<version>2.5.1</version>
</dependency>

• 2、汉字转拼音工具类代码如下 Pinyin4jUtil.java：

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;

/**
 * 中文转化为拼音工具类
 * 
 * @author lizhou
 * 
 */
public class Pinyin4jUtil {

	/**
	 * 获得汉语拼音首字母 大写
	 * 
	 * @param chines 汉字
	 * @return
	 */
	public static String getAlpha2UpperCase(String chines) {
		String pinyinName = "";
		char[] nameChar = chines.toCharArray();
		HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
		defaultFormat.setCaseType(HanyuPinyinCaseType.UPPERCASE);
		defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		for (int i = 0; i < nameChar.length; i++) {
			if (nameChar[i] > 128) {
				try {
					pinyinName += PinyinHelper.toHanyuPinyinStringArray(nameChar[i], defaultFormat)[0].charAt(0);
				} catch (BadHanyuPinyinOutputFormatCombination e) {
					System.out.println("获得汉语拼音首字母异常:}" + e.getMessage());
				}
			} else {
				pinyinName += nameChar[i];
			}
		}
		return pinyinName;
	}

	/**
	 * 将字符串中的中文转化为拼音,英文字符不变
	 * 
	 * @param inputString 汉字
	 * @return
	 */
	public static String getPingYin(String inputString) {
		HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
		format.setCaseType(HanyuPinyinCaseType.LOWERCASE);
		format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		format.setVCharType(HanyuPinyinVCharType.WITH_V);
		String output = "";
		if (null != inputString && 0 < inputString.length() && !"null".equals(inputString)) {
			char[] input = inputString.trim().toCharArray();
			try {
				for (int i = 0; i < input.length; i++) {
					if (Character.toString(input[i]).matches("[\\u4E00-\\u9FA5]+")) {
						String[] temp = PinyinHelper.toHanyuPinyinStringArray(input[i], format);
						output += temp[0];
					} else {
						output += Character.toString(input[i]);
					}
				}
			} catch (BadHanyuPinyinOutputFormatCombination e) {
				System.out.println("将字符串中的中文转化为拼音,英文字符不变异常 :" + e.getMessage());
			}
		} else {
			return "";
		}
		return output;
	}

	/**
	 * 汉字转换位汉语拼音首字母，英文字符不变
	 * 
	 * @param chines 汉字
	 * @return 拼音
	 */
	public static String converterToFirstSpell(String chines) {
		String pinyinName = "";
		char[] nameChar = chines.toCharArray();
		HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
		defaultFormat.setCaseType(HanyuPinyinCaseType.UPPERCASE);
		defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		for (int i = 0; i < nameChar.length; i++) {
			if (nameChar[i] > 128) {
				try {
					pinyinName += PinyinHelper.toHanyuPinyinStringArray(nameChar[i], defaultFormat)[0].charAt(0);
				} catch (BadHanyuPinyinOutputFormatCombination e) {
					System.out.println("汉字转换位汉语拼音首字母，英文字符不变异常 :" + e.getMessage());
				}
			} else {
				pinyinName += nameChar[i];
			}
		}
		return pinyinName;
	}

	/**
	 * 汉字转换位汉语拼音首字母，英文字符不变(小写)
	 *
	 * @param chines 汉字
	 * @return 拼音
	 */
	public static String converterToFirstSpellSmal(String chines) {
		String pinyinName = "";
		char[] nameChar = chines.toCharArray();
		HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
		defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
		defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		for (int i = 0; i < nameChar.length; i++) {
			if (nameChar[i] > 128) {
				try {
					if (Character.toString(nameChar[i]).matches("[\\u4E00-\\u9FA5]+")) {
						pinyinName += PinyinHelper.toHanyuPinyinStringArray(nameChar[i], defaultFormat)[0].charAt(0);
					} else {
						pinyinName += nameChar[i];
					}
				} catch (BadHanyuPinyinOutputFormatCombination e) {
					System.out.println("汉字转换位汉语拼音首字母，英文字符不变异常:" + e.getMessage());
				}
			} else {
				pinyinName += nameChar[i];
			}
		}
		return pinyinName;
	}
}

如您在阅读中发现不足，欢迎留言！！！