根据中文名称字符串输出该字符串首字母

怼烎@ 2022-10-12 14:58 179阅读 0赞

记录笔记: 根据一段字符串,输出该字符串中的中文首字母  
eg: Stirng name = “中文名称”; 输出: zwmc

如图所示:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk4MDExNg_size_16_color_FFFFFF_t_70]  
**ChineseCharToEn工具类代码如下:**

package com.zqy.demodrift.chineseCharToEn;
    /** * @author Tom */
    import java.io.UnsupportedEncodingException;
    
    /** * 取得给定汉字串的首字母串,即声母串 * Title: ChineseCharToEn * @date 注：只支持GB2312字符集中的汉字 */  
    public final class ChineseCharToEn {   
        private final static int[] li_SecPosValue = {  1601, 1637, 1833, 2078, 2274,  
                2302, 2433, 2594, 2787, 3106, 3212, 3472, 3635, 3722, 3730, 3858,  
                4027, 4086, 4390, 4558, 4684, 4925, 5249, 5590 };  
        private final static String[] lc_FirstLetter = {  "a", "b", "c", "d", "e",  
                "f", "g", "h", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",  
                "t", "w", "x", "y", "z" };  
      
        /** * 取得给定汉字串的首字母串,即声母串 * @param str 给定汉字串 * @return 声母串 */  
        public static String getAllFirstLetter(String str) {   
            if (str == null || str.trim().length() == 0) {   
                return "";  
            }  
      
            String _str = "";  
            for (int i = 0; i < str.length(); i++) {   
                _str = _str + getFirstLetter(str.substring(i, i + 1));  
            }  
      
            return _str;  
        }  
      
        /** * 取得给定汉字的首字母,即声母 * @param chinese 给定的汉字 * @return 给定汉字的声母 */  
        public static String getFirstLetter(String chinese) {   
            if (chinese == null || chinese.trim().length() == 0) {   
                return "";  
            }  
            chinese = conversionStr(chinese, "GB2312", "ISO8859-1");  
      
            if (chinese.length() > 1) // 判断是不是汉字 
            {   
                int li_SectorCode = (int) chinese.charAt(0); // 汉字区码 
                int li_PositionCode = (int) chinese.charAt(1); // 汉字位码 
                li_SectorCode = li_SectorCode - 160;  
                li_PositionCode = li_PositionCode - 160;  
                int li_SecPosCode = li_SectorCode * 100 + li_PositionCode; // 汉字区位码 
                if (li_SecPosCode > 1600 && li_SecPosCode < 5590) {   
                    for (int i = 0; i < 23; i++) {   
                        if (li_SecPosCode >= li_SecPosValue[i]  
                                && li_SecPosCode < li_SecPosValue[i + 1]) {   
                            chinese = lc_FirstLetter[i];  
                            break;  
                        }  
                    }  
                } else // 非汉字字符,如图形符号或ASCII码 
                {   
                    chinese = conversionStr(chinese, "ISO8859-1", "GB2312");  
                    chinese = chinese.substring(0, 1);  
                }  
            }  
      
            return chinese;  
        }  
      
        /** * 字符串编码转换 * @param str 要转换编码的字符串 * @param charsetName 原来的编码 * @param toCharsetName 转换后的编码 * @return 经过编码转换后的字符串 */  
        private static String conversionStr(String str, String charsetName,String toCharsetName) {   
            try {   
                str = new String(str.getBytes(charsetName), toCharsetName);  
            } catch (UnsupportedEncodingException ex) {   
            }  
            return str;  
        }  
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk4MDExNg_size_16_color_FFFFFF_t_70]: /images/20221005/180a3c223f4f4192a9a312bdd0047bc1.png