过滤集合中保存的对象内日期重复的，具有同一个日期的的对象只保留一个

去重复resultList = treasuryManager.queryAllTreasury(sMap); List remList = new ArrayList(); Set retList = new HashSet(); CStorageRate csr = new CStorageRate(); CStorageRate csr1 = new CStorageRate(); //去掉入库日期重复的，同一日期只保留一种 for(int i = 0 ; i<resultList.size();i++){csr = (CStorageRate) resultList.get(i); for(int j = i+1 ; j<resultList.size();j++){ csr1 = (CStorageRate) resultList.get(j); if(csr.getEnterDate().equals(csr1.getEnterDate())){ remList.add(csr1); } } } resultList.removeAll(remList); 过滤掉了包含指定重复字段的对象。

 

问题：查询返回的list集合保存的是对象，去掉这些对象中empid重复的对象，只保留不重复的。List resultList = new ArrayList();List currentEmpList = new ArrayList();currentEmpList = performanceDao.queryAllEmpOfCurrDateNew(curdate); // 用开始日期和结束日期为范围，查询已经维护了日历项的（可能一个人有多条）//去掉重复的&取出empid放入新的集合（集合元素类型未Integer）for(int i = 0 ;i<currentEmpList.size(); i++){TNotesCalendarinfo tnc = (TNotesCalendarinfo) currentEmpList.get(i);System.out.println(tnc.getEmpid()+" datalist: "+tnc.getDatalist());if(tnc.getDatalist()==null){if(resultList.contains(tnc.getEmpid())){}else{resultList.add(tnc.getEmpid());}}else{if(tnc.getDatalist().indexOf(curdate) > -1){if(resultList.contains(tnc.getEmpid())){}else{resultList.add(tnc.getEmpid());}}}}