摘要：
List> orderStatusList = new ArrayList>(); orderStatusList.add(new AbstractMap.SimpleEntry(1 ,"已下单")); orderStatusList.add(new AbstractMap.SimpleEn... 阅读全文
摘要：
private T getFirstItem(List list) { T item = null; if(list != null && list.size() >0){ item = list.get(0); } return item; } 阅读全文