java实现中文汉字转中文全拼和拼音首字母缩写的方法

 用户为新建产品命名时通常使用中文，而假如后台需要根据用户输入的中文名称进行字段拼接时，就需要将中文汉字转化为中文。所以就用到了pinyin4j这个java工具包(官方网站：http://pinyin4j.sourceforge.net/)。这个工具包是开源的，对于一般常用汉字，转化正确率还是不错的。

         对于使用maven的项目，直接添加依赖

    <dependency>
    <groupId>com.belerweb</groupId>
    <artifactId>pinyin4j</artifactId>
    <version>2.5.0</version>
    </dependency>

        对于懒得看官方文档的小伙伴，我转载了一个现成的工具类，提供了三个基本的转化方法，亲测可以直接使用。

    package oa.common.utils;
     
    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;
     
    /**
     * 拼音工具类
     *
     * @author lsf
     */
    public class PingYinUtil {
        /**
         * 将字符串中的中文转化为拼音,其他字符不变
         *
         * @param inputString
         * @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);
     
            char[] input = inputString.trim().toCharArray();
            String output = "";
     
            try {
                for (int i = 0; i < input.length; i++) {
                    if (java.lang.Character.toString(input[i]).matches("[\\u4E00-\\u9FA5]+")) {
                        String[] temp = PinyinHelper.toHanyuPinyinStringArray(input[i], format);
                        output += temp[0];
                    } else
                        output += java.lang.Character.toString(input[i]);
                }
            } catch (BadHanyuPinyinOutputFormatCombination e) {
                e.printStackTrace();
            }
            return output;
        }
        /**  
         * 获取汉字串拼音首字母，英文字符不变  
         * @param chinese 汉字串  
         * @return 汉语拼音首字母  
         */  
        public static String getFirstSpell(String chinese) {   
                StringBuffer pybf = new StringBuffer();   
                char[] arr = chinese.toCharArray();   
                HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();   
                defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);   
                defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);   
                for (int i = 0; i < arr.length; i++) {   
                        if (arr[i] > 128) {   
                                try {   
                                        String[] temp = PinyinHelper.toHanyuPinyinStringArray(arr[i], defaultFormat);   
                                        if (temp != null) {   
                                                pybf.append(temp[0].charAt(0));   
                                        }   
                                } catch (BadHanyuPinyinOutputFormatCombination e) {   
                                        e.printStackTrace();   
                                }   
                        } else {   
                                pybf.append(arr[i]);   
                        }   
                }   
                return pybf.toString().replaceAll("\\W", "").trim();   
        }   
        /**  
         * 获取汉字串拼音，英文字符不变  
         * @param chinese 汉字串  
         * @return 汉语拼音  
         */  
        public static String getFullSpell(String chinese) {   
                StringBuffer pybf = new StringBuffer();   
                char[] arr = chinese.toCharArray();   
                HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();   
                defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);   
                defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);   
                for (int i = 0; i < arr.length; i++) {   
                        if (arr[i] > 128) {   
                                try {   
                                        pybf.append(PinyinHelper.toHanyuPinyinStringArray(arr[i], defaultFormat)[0]);   
                                } catch (BadHanyuPinyinOutputFormatCombination e) {   
                                        e.printStackTrace();   
                                }   
                        } else {   
                                pybf.append(arr[i]);   
                        }   
                }   
                return pybf.toString();   
        }  
    }  

工具类非本人原创，转载自https://www.oschina.net/code/snippet_175832_14587