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add null check

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This commit is contained in:
Looly 2025-09-19 20:33:14 +08:00
parent 365c56b2f8
commit abda118f72
1 changed files with 3 additions and 3 deletions
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6
hutool-extra/src/main/java/cn/hutool/v7/extra/pinyin/PinyinUtil.java
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@ -126,12 +126,12 @@ public class PinyinUtil {
/** /**
* 将输入字符串转为拼音首字母，其它字符原样返回 * 将输入字符串转为拼音首字母，其它字符原样返回
* *
* @param str 任意字符，汉字返回拼音，非汉字原样返回 * @param str 任意字符，汉字返回拼音，非汉字原样返回，{@code null}返回{@code null}
* @param separator 分隔符 * @param separator 分隔符
* @return 汉字返回拼音，非汉字原样返回 * @return 汉字返回拼音，非汉字原样返回；str为{@code null}返回{@code null}
*/ */
public static String getFirstLetter(final String str, final String separator) { public static String getFirstLetter(final String str, final String separator) {
return getEngine().getFirstLetter(str, separator); return (str == null) ? null :getEngine().getFirstLetter(str, separator);
} }
/** /**