自定义Comparator比较String字符串

package sn.len.demo;import java.util.Arrays;import java.util.Comparator;//一般用Arrays.sort都按一个一个的字符去比较的，而不是按照自己所想根据Ascii去比较的，所以。。。。public class ArrayStore{public static void main(String[] args){String str[] = new String[5];str[0] = "OPS/chapter5.html";str[1] = "OPS/chapter4.html";str[2] = "OPS/chapter69.html";str[3] = "OPS/chapter7.html";str[4] = "OPS/chapter27.html";Arrays.sort(str, htmlComp);for (int i = 0; i < str.length; i++){System.out.println(str[i]);}}private static Comparator<String> htmlComp = new Comparator<String>(){@Overridepublic int compare(String o1, String o2){if (o1.startsWith("OPS/chapter") && o2.startsWith("OPS/chapter")){System.out.println("o1---->"+o1);System.out.println("o2---->"+o2);String num1 = o1.substring("OPS/chapter".length(), o1.lastIndexOf(".html"));String num2 = o2.substring("OPS/chapter".length(), o2.lastIndexOf(".html"));try{Integer int1 = Integer.valueOf(num1);Integer int2 = Integer.valueOf(num2);return int1.compareTo(int2);} catch (Exception e){return o1.compareTo(o2); //按字典顺序去比较两个字符串}}return o1.compareTo(o2);//按字典顺序去比较两个字符串}};}