合并后的List如何再放入一个Map中？

[heyingss]

List Inlst=originManage.find("select code,chdescirbe from Origin where code like '37%' and code=substr(code,1,4)||'00' order by tabIndex desc");

List Outlst=originManage.find("select code,chdescirbe from Origin where code not like '37%' and code=substr(code,1,2)||'0000' order by tabIndex desc");

并入一个List中
List Originlst=new ArrayList();
Originlst.add(Inlst);
Originlst.add(Outlst);

希望把合并后的List再放入一个Map,然后页面中遍历用。

[Jacky_Zhu_1983]

直接用list遍历就可以了啊~

[pengling1985]

[Quote=引用 1 楼 mousetsun 的回复:]
直接用list遍历就可以了啊~
[/Quote]
正解，
生成一个map对象
遍历Originlst的时候，往map中加数据

[heyingss]

抛出异常：
java.lang.ClassCastException: java.util.ArrayList incompatible with com.sdbys.service.dict.origin.DictOrigin

遍历代码如下：
for(int i=0;i<Originlst.size();i++){
DictOrigin origin = (DictOrigin) Originlst.get(i);
origin.getCode();
origin.getDescribe();
}

[Jacky_Zhu_1983]

Originlst 是有两个list对象啊...
两个list对象下面才是 DictOrigin

[yangqihong]

抛出异常：
java.lang.ClassCastException: java.util.ArrayList incompatible with com.sdbys.service.dict.origin.DictOrigin


类型转换异常，看看DictOrigin这个对象跟你的sql取出来的是否一致，也只有那2个元素。

[yukang_ky]

List Inlst=originManage.find("select code,chdescirbe from Origin where code like '37%' and code=substr(code,1,4)||'00' order by tabIndex desc");

List Outlst=originManage.find("select code,chdescirbe from Origin where code not like '37%' and code=substr(code,1,2)||'0000' order by tabIndex desc");

每个list里面存放其实不是Origin实体，而是Obejct[]，你只有将Object[]转换为实体才行，如hql语句
select new Origin(o.code,o.chdescirbe from Origin as o where code like '37%' and code=substr(code,1,4)||'00' order by tabIndex desc)
并且在实体类中存在Origin(code,chdescirbe)的构造函数，才能转换为相应的实体。

[heyingss]

[Quote=引用 2 楼 pengling1985 的回复:]
引用 1 楼 mousetsun 的回复:
直接用list遍历就可以了啊~

正解，
生成一个map对象
遍历Originlst的时候，往map中加数据
[/Quote]
如何实现？

[heyingss]

List Inlst=originManage.find("from DictOrigin where code like '37%' and code=substr(code,1,4)||'00' order by tabIndex desc");

List Outlst=originManage.find("from DictOrigin where code not like '37%' and code=substr(code,1,2)||'0000' order by tabIndex desc");

//放入map1
Map m1 = new HashMap();
Iterator t=Inlst.iterator();
while(t.hasNext()){
DictOrigin origin = (DictOrigin) t.next();
m1.put(origin.getCode(),origin.getDescribe());
}

//放入map2
Map m2 = new HashMap();
Iterator t2=Outlst.iterator();
while(t2.hasNext()){
DictOrigin origin = (DictOrigin) t2.next();
m2.put(origin.getCode(),origin.getDescribe());
}

//合并两个Map
m2.putAll(m1);

我只做到这样实现，先合并List再放入Map,不知道如何实现？请教各位？

[xlzhang66]

等待...