JAVA 数据筛选（第一笔数据与第二笔数据比较）

Map<String, Object> jHpictureMap = new HashMap<String, Object>();
// 存放照片SID
StringBuilder jHpictureIds = new StringBuilder();

for (int i = 0 , size = jHActualPictureList.size(); i < size; i++) {

// 当前笔
Map<String, Object> object = jHActualPictureList.get(i);
String storeDisplaySid = String.valueOf(object.get("STORE_DISPLAY_SID"));
String pictureId = String.valueOf(object.get("TASK_PICTURE_SID"));

// 下一笔（当为最后一笔时，设置下一笔为空）
Map<String, Object> nextObject = (i == size-1) ? null : jHActualPictureList.get(i+1);

// 将 当前pictureId 拼接至 jHpictureIds
jHpictureIds.append((jHpictureIds.length() > 0) ? ("," + pictureId) : pictureId);

// 如果当前笔不等于下一笔，或者当前笔为最后一笔
if ((null != nextObject && !String.valueOf(nextObject.get("STORE_DISPLAY_SID")).equals(storeDisplaySid)) || i == size - 1) {

jHpictureMap.put(String.valueOf(object.get("STORE_DISPLAY_SID")), String.valueOf(jHpictureIds));

// 不是最后一笔，创建一个新的 jHpictureIds实例，是最后一笔清空jHpictureIds
jHpictureIds = (i == size-1) ? null : new StringBuilder();
}
}

logger.errorT("=================测试:" + jHpictureMap.toString());