對List集合進行中英混合排序

zkrym

示例：
假设有这样的十条记录：

Id	record
1	A ''Healthy Schools'' program in Hong Kong: Enhancing positive health behavior for school children and teachers
2	1996 opinion survey on civic education: Final report
3	'A Luxury for the First World': A western perception of Hong Kong Chinese attitudes towards inclusive education
4	A Chinese cultural critique of the global qualifying standards for social work education
5	A baseline survey of students' attitudes towards gender stereotypes and family roles
6	「中國文化」項目的教學與教學上的銜接
7	中國語文及文化科的組織淺探
8	「中學美術與設計科應用電子科技教學」試驗計劃
9	點滴校園：學校社會工作文集
10	齊來說故事：透過小組學習方式改善說話的表達能力及態度

通常意义上，我们想通过排序获得的排序结果如下：

ID	record
1	1996 opinion survey on civic education: Final report
2	A baseline survey of students' attitudes towards gender stereotypes and family roles
3	A Chinese cultural critique of the global qualifying standards for social work education
4	A ''Healthy Schools'' program in Hong Kong: Enhancing positive health behavior for school children and teachers
5	'A Luxury for the First World': A western perception of Hong Kong Chinese attitudes towards inclusive education
6	點滴校園：學校社會工作文集
7	齊來說故事：透過小組學習方式改善說話的表達能力及態度
8	「中國文化」項目的教學與教學上的銜接
9	中國語文及文化科的組織淺探
10	「中學美術與設計科應用電子科技教學」試驗計劃

由排序结果可知，我们将数字排在最前面，然后按字母排序，再按中文拼音排序。这个排序通常是没有问题的，但由数据我们会发现几个问题：字母大小写、符点符号（特殊符号）、中英混合排序等特殊性的地方。对此，如果数据量不是成万上十万条的情况下，我们可以采取如下步骤进行处理：
1、定义一个对象
Public class RecordInfo{
private String id;
private String record;
private String recordtemp;
//get、set方法省略……
}
2、例如这些记录是在数据库中的，我们将之取出，以RecordInfo对象的方式存储在某一个List集合中，在存入list过程中，为了处理特殊符号，我们可以将处理过后的值set到recordtemp字段中（可以用rePlaceAll()的方法处理特殊符号）。而且加入如下代码：
Collections.sort(listtemp, new AuthorVOCompare());
这里有一个AuthorVOCompare类，这个类主要用于重排序，代码如下：
import java.util.Comparator;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.*;@SuppressWarnings("unchecked")public class AuthorVOCompare implements Comparator {public int compare(Object op1, Object op2) {RecordInfo record1 = (RecordInfo) op1;String o1 = record1.getRecordtemp();RecordInfo record2= (RecordInfo) op2;String o2 = record2. getRecordtemp ();for (int i = 0; i < o1.length() && i < o2.length(); i++) {int codePoint1 = o1.charAt(i);int codePoint2 = o2.charAt(i);if (Character.isSupplementaryCodePoint(codePoint1)|| Character.isSupplementaryCodePoint(codePoint2)) {i++;}if (codePoint1 != codePoint2) {if (Character.isSupplementaryCodePoint(codePoint1)|| Character.isSupplementaryCodePoint(codePoint2)){return codePoint1 - codePoint2;}String pinyin1 = pinyin((char) codePoint1);String pinyin2 = pinyin((char) codePoint2);if (pinyin1 != null && pinyin2 != null) {// 两个字符都是汉字if (!pinyin1.equals(pinyin2)) {//這一條尤為重要，如果調用的是compareTo是不忽略大小寫的return pinyin1. compareToIgnoreCase (pinyin2);}} else {return codePoint1 - codePoint2;}}}return o1.length() - o2.length();}/**对中英文排序**/private String pinyin(char c) {if (String.valueOf(c) == null || String.valueOf(c).length() == 0) {return "";}HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();format.setCaseType(HanyuPinyinCaseType.LOWERCASE);format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);format.setVCharType(HanyuPinyinVCharType.WITH_V);String output = "";try {if (java.lang.Character.toString(c).matches("[\\u4E00-\\u9FA5]+")) {String[] temp = PinyinHelper.toHanyuPinyinStringArray(c, format);if (temp != null && temp.length > 0) {output += temp[0];}} else {output += java.lang.Character.toString(c);}} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}return output;}}
这个类中需要引入一个jar包：pinyin4j-2.5.0.jar，主要用于拼音的排序，可以网上下载。


ps：本文無版權，代碼部分來摘自網絡。