list列表中Object（JavaBean）对象sort处理

/**
sortKey：IBBSrvicKeiykInfoBean .getShoriKbn(),          IBBSrvicKeiykInfoBean .getSrvicKeiyakNo()，IBBSrvicKeiykInfoBean .getTekiyoStartYMD(),
IBBSrvicKeiykInfoBean .getTekiyoEndYMD()
*/
Comparator comp = new Comparator() {
/*
* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
*/
public int compare(Object o1, Object o2) {
IBBSrvicKeiykInfoBean item1 = (IBBSrvicKeiykInfoBean) o1;
IBBSrvicKeiykInfoBean item2 = (IBBSrvicKeiykInfoBean) o2;
Comparable[] key1 = new Comparable[]{
item1.getShoriKbn(),
item1.getSrvicKeiyakNo(),
item1.getTekiyoStartYMD(),
item1.getTekiyoEndYMD()
};
Comparable[] key2 = new Comparable[]{
item1.getShoriKbn(),
item2.getSrvicKeiyakNo(),
item2.getTekiyoStartYMD(),
item2.getTekiyoEndYMD()
};
int compResult = 0;
for (int i = 0; i < key1.length; i++) {
compResult = key1[i].compareTo(key2[i]);
if (compResult != 0) {
break; //	                }
}
return compResult;
}
};
Collections.sort(tekiyoSrvicUpdInfoList, comp);