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合并后的List怎么再放入一个Map中

发布时间: 2012-01-22 22:38:43 作者: rapoo

合并后的List如何再放入一个Map中?

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。


[解决办法]
直接用list遍历就可以了啊~
[解决办法]

探讨
直接用list遍历就可以了啊~

[解决办法]
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。
[解决办法]
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。
[解决办法]
等待...

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