Question

我使用springjdbctemplate查询来自hive数据库的数据。

这是我的代码：

@RestController
public class QueryController {
    @Autowired
    protected JdbcTemplate hiveTemplate;

    @RequestMapping("/query")
    public List query() {
        List data = hiveTemplate.queryForList("select * from ecg.hivetbluserdata limit 100");
        return data;
    }
}

但它返回了这个：

[{"hivetbluserdata.id_data":1,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":3.3871,"hivetbluserdata.inputtime":"2015-04-09 18:11:25.0"},
{"hivetbluserdata.id_data":2,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":1.56892,"hivetbluserdata.inputtime":"2015-04-09 18:11:25.0"},
{"hivetbluserdata.id_data":3,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":1.60802,"hivetbluserdata.inputtime":"2015-04-09 18:11:26.0"},
{"hivetbluserdata.id_data":4,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":2.09677,"hivetbluserdata.inputtime":"2015-04-09 18:11:26.0"},
{"hivetbluserdata.id_data":5,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":1.99902,"hivetbluserdata.inputtime":"2015-04-09 18:11:26.0"},
{"hivetbluserdata.id_data":6,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":1.97947,"hivetbluserdata.inputtime":"2015-04-09 18:11:26.0"},
{"hivetbluserdata.id_data":7,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:26","hivetbluserdata.ecgvalue":1.94037,"hivetbluserdata.inputtime":"2015-04-09 18:11:26.0"},
{"hivetbluserdata.id_data":8,"hivetbluserdata.id_user":1,"hivetbluserdata.time":"Thursday, April 09, 2015 18:09:27","hivetbluserdata.ecgvalue":1.56892,"hivetbluserdata.inputtime":"2015-04-09 18:11:26.0"},

我不想显示表名（hivetbluserdata是表名）。我该如何解决这个问题？

Answer 1

您可以使用以下Hive配置属性来禁用结果集中的表名：

<property>
   <name>hive.resultset.use.unique.column.names</name>
   <value>false</value>
</property>

参考：

https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.resultset.use.unique.column.names

<强> hive.resultset.use.unique.column.names

默认值：true

添加：Hive 0.13.0 with HIVE-6687

在结果集中使列名称唯一   通过使用表别名限定列名称（如果需要）。表别名   将被添加到类型＆＃34的查询的列名称中;选择*＆＃34;或者如果   查询显式使用表别名＆＃34;选择r1.x ..＆＃34;。

QueryforList结果显示表名

1 个答案: