List<object> 排序

如：对List 按照AccountName降序或者升序排序
public class DataSyncSorter {
private static final String DESC = &quot;desc&quot;;
public static List sortByAccountName(List dataConfigModelList,
final String sortType) {
Collections.sort(dataConfigModelList, new SorterByAccountName(sortType));
return dataConfigModelList;
}

private static class SorterByAccountName implements Comparator {
private String sortType;
public SorterByAccountName(String sortType) {
this.sortType = sortType;
}
public int compare(DataConfigModel o1, DataConfigModel o2) {
int flag = 1;
if (DESC.equals(sortType)) {
flag = -1;
}
String accountName1 = o1.getAccountName();
String accountName2 = o2.getAccountName();
if(accountName1 == null) {
return 1 * flag;
}
if(accountName2 == null) {
return -1 * flag;
}
return (accountName1.compareToIgnoreCase(accountName2) * flag);
}
}
}