Sql sql = Sqls.create("select t.*, '测试' as demo_s, '测试字段2' as demo_t from instrument t");
sql.setCallback(Sqls.callback.entities());
sql.setEntity(dao.getEntity(Instrument.class));
dao.execute(sql);
List<Instrument> list = sql.getList(Instrument.class);
Instrument实体内的demo_s和demo_t是无@Column标识的，这两字段如何才能映射到Instrument实体内
方法1: 参考QueryEntityCallback写一个Callback, 里面取值然后set到对象中去
方法2: 先用records接收,然后转entity,最后把多出来的字段set到对应属性去
// 示代码
Sql sql = Sqls.create("select t.*, '测试' as demo_s, '测试字段2' as demo_t from instrument t");
sql.setCallback(Sqls.callback.records());
//sql.setEntity(dao.getEntity(Instrument.class));
dao.execute(sql);
List<Record> tmp = sql.getList(Record.class);
List<Instrument> list = new ArrayList<Instrument>();
Entity<Instrument> en = dao.getEntity(Instrument.class);
for (Record re: tmp) {
Instrument ins = re.toEntity(en);
ins.setS(re.getString("demo_s"));
ins.setT(re.getString("demo_t"));
list.add(ins);
}
假如我库里有一百个字段，只想拼一个别的字段，用record一个一个set真的太难受了，如果没有column标识的name对上也能映射到实体里就好了o(╥﹏╥)o。。。不知道说明白没有，就很纠结。。。@wendal