java字母数字混搭字符串排序.docxVIP

Java 字符串数字混合list集合排序 排序后样式： 关键代码 //sort list ListKpiView kpiViews = (ListKpiView) query.execute(); ComparatorKpiViewName comparatorKpiViewName = new ComparatorKpiViewName(); Collections.sort(kpiViews,comparatorKpiViewName); import java.util.Comparator; import com.kpi.entity.KpiView; public class ComparatorKpiViewName implements Comparator { @Override public int compare(Object o1, Object o2) { KpiView kpiView1 = (KpiView) o1; KpiView kpiView2 = (KpiView) o2; String s1=kpiView1.getKpiViewName().toLowerCase(); String s2=kpiView2.getKpiViewName().toLowerCase(); if (s1.charAt(0) s2.charAt(0)) { return 1; } else if (s1.charAt(0) s2.charAt(0)) { return -1; } else { //The alphanumeric section String alphabet1 = s1.replaceAll(\\d+$, ); String alphabet2 = s2.replaceAll(\\d+$, ); // If you dont want to case-sensitive, or compareTo int cmpAlphabet = pareToIgnoreCase(alphabet2); if (cmpAlphabet != 0) { return cmpAlphabet; } //Digital section String numeric1 = s1.replaceAll(^[a-zA-Z]+, ); String numeric2 = s2.replaceAll(^[a-zA-Z]+, ); if (.equals(numeric1)) { /* Even if the numeric2 is the empty string also does not matter, of course, if the comparison is not String ( or other immutable objects ) is another matter*/ return -1; } if (.equals(numeric2)) { return 1; } int result=Integer.parseInt(numeric1) - Integer.parseInt(numeric2); return result; } } }