list> list集合新增列
則需要:
list> list_new = new arraylist>();//新建list集合物件,用於儲存新的資料
for (mapmap : list) else
map.put("sfjh", mc_new);
list_new .add(map);
}//另外一種方式
//不要下面兩行**
list> list_new = new arraylist>();list_new .add(map);
list> list集合刪除map中的某個元素
list> list_new = new arraylist>();mapmap1=new hashmap();
map1.put("ks", "01");
map1.put("js", "10");
list_new.add(map1);
mapmap2=new hashmap();
map2.put("ks", "01");
map2.put("js", "10");
list_new.add(map2);
for (mapmap : list_new)
list> list集合修改map中的元素
list> list_new = new arraylist>();mapmap1=new hashmap();
map1.put("ks", "01");
map1.put("js", "10");
list_new.add(map1);
mapmap2=new hashmap();
map2.put("ks", "01");
map2.put("js", "10");
list_new.add(map2);
for (mapmap : list_new)
list> list集合查詢資料庫資料
//公司wh框架的使用方法string sql="select * from jxap "
//+ " left outer join (select jxjhid,ks from jxjh) jxjh on jxjh.jxjhid=jxap.jxjhid"
+ " where jxap.jlztm=51 and jxap.bjid=:bjid and jxap.jxjhid in(select jxjhid from jxjh where xqm=:xqm )";
sqlcommandimpl sci=new sqlcommandimpl(sql);
sci.setint("bjid", bjid);
sci.setint("xqm", xqm);
list> list=gdba.selectasmaplist(sci,jxap);
//普通的框架list> list = new arraylist>();
//關閉連線flag
boolean colseflag = false;
//開啟db鏈結
if (this.connection == null)
preparedstatement prestat = null;
prestat = this.connection.preparestatement(sql);
resultset rs = null;
mapmap = null;
rs = prestat.executequery();
//生成resultsetmetadata
resultsetmetadata rsmeta = prestat.getmetadata();
while (rs.next())
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