1、写作背景

总想走捷径的人，往往因找不到捷径而固步自封，一步不前！

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2、参考网址

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3、学习目的

• 时间戳工具整理

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4、核心操作

1）添加依赖

        <!--添加拼音依赖-->
        <dependency>
            <groupId>com.belerweb</groupId>
            <artifactId>pinyin4j</artifactId>
            <version>2.5.1</version>
        </dependency>

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2）拼音转化类

/**
 * 拼音转化工具类
 */
public class PinyinUtil {

    /**
     * 将中文转化为拼音
     */
    public static String getPinYinString(String string) {
        if (null != string) {
            StringBuilder builder = new StringBuilder();
            for (int i = 0; i < string.length(); i++) {
                char word = string.charAt(i);
                String[] strings = PinyinHelper.toHanyuPinyinStringArray(word);
                if (null != string) {
                    builder.append(strings[0]);
                } else {
                    builder.append(word);
                }
            }
            return builder.toString();
        }
        return "";
    }

    /**
     * 获取中文的因为首字符
     */
    public static String getPinYinFirstChar(String string) {
        if (null != string) {
            StringBuilder builder = new StringBuilder();
            for (int i = 0; i < string.length(); i++) {
                char word = string.charAt(i);
                String[] strings = PinyinHelper.toHanyuPinyinStringArray(word);
                if (null != string) {
                    builder.append(strings[0].charAt(0));
                } else {
                    builder.append(word);
                }
            }
            return builder.toString();
        }
        return "";
    }
}

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3）测试方法使用

public class TestPinYin {
    public static void main(String[] args) {
        String string="中国";
        String pinYinFirstChar1 = PinyinUtil.getPinYinString(string);
        String pinYinFirstChar2 = PinyinUtil.getPinYinFirstChar(string);
        System.out.println("------->"+pinYinFirstChar1);
        System.out.println("------->"+pinYinFirstChar2);
    }
}

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5、课后习题

1）进行拼音等项目转化使用

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2）联系人按照姓名A-Z进行排序

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