中文转拼音，pinyin4j实用示例

Pinyin4j是一个流行的Java库，支持中文字符和拼音之间的转换。拼音输出格式可以定制。

Support Chinese character (both Simplified and Tranditional) to most popular Pinyin systems, including Hanyu Pinyin, Tongyong Pinyin, Wade-Giles, MPS2, Yale and Gwoyeu Romatzyh. Support multiple pronounciations and customized output.

pinyin4j是一个支持将中文转换到拼音的Java开源类库。

POM引入：

<dependency>

    <groupId>net.sourceforge.pinyin4j</groupId>

    <artifactId>pinyin4j</artifactId>

    <version>2.5.0</version>

</dependency>

项目地址：

https://sourceforge.net/projects/pinyin4j/

实用示例，如果一个汉字是多音字，那么将采取组装所有可能的组合：

package com.javacui.lucene.pinyin;

import java.util.HashSet;

import java.util.Set;

import com.alibaba.fastjson.JSON;

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;

/**

 * 打印中文拼音的所有组合

 */

public class Pinyin4j {

    public static void main(String[] args) {

        String cnStr = "长沙市重庆市";

        System.out.println(makePinyin(cnStr));

    }

    /**

     * 字符串凑集转换字符串(逗号分隔)

     */

    public static 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();

    }

    /**

     * 获取拼音凑集

     */

    public static Set<String> getPinyin(String src) {

        if (src != null && !src.trim().equalsIgnoreCase("")) {

            char[] srcChar;

            srcChar = src.toCharArray();

            // 汉语拼音格局输出类

            HanyuPinyinOutputFormat hanYuPinOutputFormat = new HanyuPinyinOutputFormat();

            // 输出设置,大小写,音标体式格式等

            hanYuPinOutputFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);

//          HanyuPinyinToneType.WITH_TONE_NUMBER 用数字表示声调，例如：liu2

//          HanyuPinyinToneType.WITHOUT_TONE 无声调表示，例如：liu

//          HanyuPinyinToneType.WITH_TONE_MARK 用声调符号表示，例如：liú

            hanYuPinOutputFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);

            hanYuPinOutputFormat.setVCharType(HanyuPinyinVCharType.WITH_V);

            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(根据需求来)

                if (String.valueOf(c).matches("[\\u4E00-\\u9FA5]+")) {

                    try {

                        temp[i] = PinyinHelper.toHanyuPinyinStringArray(srcChar[i], hanYuPinOutputFormat);

                    } catch (BadHanyuPinyinOutputFormatCombination e) {

                        e.printStackTrace();

                    }

                } else if (((int) c >= 65 && (int) c <= 90) || ((int) c >= 97 && (int) c <= 122)) {

                    temp[i] = new String[] { String.valueOf(srcChar[i]) };

                } else {

                    temp[i] = new String[] { "" };

                }

            }

            System.out.println("中文单词分解："+JSON.toJSONString(temp));

            String[] pingyinArray = Exchange(temp);

            Set<String> pinyinSet = new HashSet<String>();

            for (int i = 0; i < pingyinArray.length; i++) {

                pinyinSet.add(pingyinArray[i]);

            }

            return pinyinSet;

        }

        return null;

    }

    /**

     * 递归

     */

    public static String[] Exchange(String[][] strJaggedArray) {

        String[][] temp = DoExchange(strJaggedArray);

        return temp[0];

    }

    /**

     * 递归

     */

    private static String[][] DoExchange(String[][] strJaggedArray) {

        int len = strJaggedArray.length;

        if (len >= 2) {

            int len1 = strJaggedArray[0].length;

            int len2 = strJaggedArray[1].length;

            int newlen = len1 * len2;

            String[] temp = new String[newlen];

            int Index = 0;

            for (int i = 0; i < len1; i++) {

                for (int j = 0; j < len2; j++) {

                    temp[Index] = strJaggedArray[0][i] + strJaggedArray[1][j];

                    Index++;

                }

            }

            String[][] newArray = new String[len - 1][];

            for (int i = 2; i < len; i++) {

                newArray[i - 1] = strJaggedArray[i];

            }

            newArray[0] = temp;

            return DoExchange(newArray);

        } else {

            return strJaggedArray;

        }

    }

    public static String makePinyin(String str){

        Set<String> set = getPinyin(str);

        System.out.println("中文单词组合："+JSON.toJSONString(set));

        return makeStringByStringSet(set);

    }

}

巴特西

中文转拼音，pinyin4j实用示例

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