需求背景
因为用户前台输入的是汉字, 但是在创建图数据库的Tag节点的时候, 虽然能用中文, 但是我觉得还是不要用了, 就像是Java也能定义中文的类和字段一样奇怪, 但是又没有翻译API, 也可能又网络的问题, 综合考虑, 可以直接转为汉字拼音
添加POM依赖
代码语言:javascript复制<!-- https://mvnrepository.com/artifact/com.belerweb/pinyin4j -->
<dependency>
<groupId>com.belerweb</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.1</version>
</dependency>
代码
代码语言:javascript复制package com.jd.knowledgeextractionplatform.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.exception.BadHanyuPinyinOutputFormatCombination;
/**
* 汉字转换为拼音
*/
public class ChineseConvertToPinyin {
/**
* 测试main方法
* @param args
*/
public static void main(String[] args) {
System.out.println("‘张三’首字母大写:" toFirstChar("张三").toUpperCase()); //转为首字母大写
System.out.println("‘张三’转成拼音:" toPinyin("张三"));
}
/**
* 获取字符串拼音的第一个字母
*/
public static String toFirstChar(String chinese){
String pinyinStr = "";
char[] newChar = chinese.toCharArray(); //转为单个字符
HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
for (int i = 0; i < newChar.length; i ) {
if (newChar[i] > 128) {
try {
pinyinStr = PinyinHelper.toHanyuPinyinStringArray(newChar[i], defaultFormat)[0].charAt(0);
} catch (BadHanyuPinyinOutputFormatCombination e) {
e.printStackTrace();
}
}else{
pinyinStr = newChar[i];
}
}
return pinyinStr;
}
/**
* 汉字转为拼音
*/
public static String toPinyin(String chinese){
String pinyinStr = "";
char[] newChar = chinese.toCharArray();
HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
for (int i = 0; i < newChar.length; i ) {
if (newChar[i] > 128) {
try {
pinyinStr = PinyinHelper.toHanyuPinyinStringArray(newChar[i], defaultFormat)[0];
} catch (BadHanyuPinyinOutputFormatCombination e) {
e.printStackTrace();
}
}else{
pinyinStr = newChar[i];
}
}
return pinyinStr;
}
}