我正在尝试将此SQL命令与Ormlite一起使用:

select address from receive

使用此代码:
List<Receivers> receiver_address = receiverDao.queryBuilder().selectColumns("address").query();

但是返回的对象是:
1 = {Receivers@830028192208}
 address = {String@830028192264} "my new address"
 city = null
 email = null
 telephone = null
 mobile = null
 name_family = null
 national_code = null
 postal_code = null
 receiver_name = null
 id = 2

在此查询中,我只需要address字段,而无需iterator,例如:
List<String> list = new ArrayList<String>();
for( Receivers lst:receiver_address)
    list.add(lst.getAddress());

该怎么做?

最佳答案

您可以在此处使用RawRowMapper:

List<String> addresses = receiverDao.queryRaw("select address from receive", new RawRowMapper<String>() {
       @Override
       public String mapRow(String[] columnNames, String[] resultColumns) throws SQLException {
            return resultColumns[0];
       }
}).getResults();

10-07 19:47
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