52 lines
1.5 KiB
Java
52 lines
1.5 KiB
Java
package com.point.strategy.common;
|
|
|
|
import java.io.File;
|
|
import java.util.Comparator;
|
|
import java.util.regex.Matcher;
|
|
import java.util.regex.Pattern;
|
|
|
|
public class FileNameComparator implements Comparator<String> {
|
|
|
|
private static final Pattern NUMBER_PATTERN = Pattern.compile("(\\d+)");
|
|
|
|
@Override
|
|
public int compare(String s1, String s2) {
|
|
String name1 = new File(s1).getName();
|
|
String name2 = new File(s2).getName();
|
|
|
|
Matcher m1 = NUMBER_PATTERN.matcher(name1);
|
|
Matcher m2 = NUMBER_PATTERN.matcher(name2);
|
|
|
|
int pos1 = 0, pos2 = 0;
|
|
|
|
while (m1.find() && m2.find()) {
|
|
// 比较数字前的字符串部分
|
|
String prefix1 = name1.substring(pos1, m1.start());
|
|
String prefix2 = name2.substring(pos2, m2.start());
|
|
|
|
int prefixCompare = prefix1.compareTo(prefix2);
|
|
if (prefixCompare != 0) {
|
|
return prefixCompare;
|
|
}
|
|
|
|
// 比较数字部分(按数值比较)
|
|
Long num1 = Long.parseLong(m1.group());
|
|
Long num2 = Long.parseLong(m2.group());
|
|
|
|
int numCompare = num1.compareTo(num2);
|
|
if (numCompare != 0) {
|
|
return numCompare;
|
|
}
|
|
|
|
pos1 = m1.end();
|
|
pos2 = m2.end();
|
|
}
|
|
|
|
// 比较剩余部分
|
|
String suffix1 = name1.substring(pos1);
|
|
String suffix2 = name2.substring(pos2);
|
|
|
|
return suffix1.compareTo(suffix2);
|
|
}
|
|
}
|