对list中的实体类或map重新排序

import java.util.Collections;import java.util.Comparator;Collections.sort(list, new Comparator() {@Overridepublic int compare(Object o1, Object o2) {VOCustomerInfo vo1 = (VOCustomerInfo) o1;        VOCustomerInfo vo2 = (VOCustomerInfo) o2;        return new Double(vo1.getId()).compareTo(new Double(vo2.getId()));    }});