●函数:
public List<HDRecord> queryTagRawRecordsByCount(int tagID, Date startTime, boolean backward, int recordCount) throws HDSdkException
●参数:
参数名称 |
数据类型 |
参数说明 |
默认值 |
tagID |
int |
tag点id |
|
startTime |
Date |
起始时间 |
|
backward |
boolean |
向前还是向后查询;true-向后查询(查询出的记录时间小于起始时间);false-向前查询(记录时间大于起始时间) |
|
recordCount |
int |
所要查询的总条数,必须在1~65535之间 |
|
●返回值:
返回值类型 |
返回值说明 |
List<HDRecord> |
Tag点原始记录 |
●异常:
当参数出现错误时,向上抛出IllegalArgumentException异常(总条数必须在1-65535之间)
当后台查询出错时,向上抛出HDSdkException异常
●说明:
该接口用于按照记录条数和起始时间查询Tag点原始记录,总条数必须在1-65535之间。
可能需要先进行登录操作,请参考HDDataConnection类
●示例代码:
注: 标记为红色的代码行为当前接口的调用
import com.baosight.hdsdk.HDConnectionFactory;
import com.baosight.hdsdk.HDDataProvider;
import com.baosight.hdsdk.HDServerFactory;
import com.baosight.hdsdk.domain.data.HDDataConnection;
import com.baosight.hdsdk.domain.data.HDDataServer;
import com.baosight.hdsdk.domain.data.HDRecord;
import com.baosight.hdsdk.exception.HDSdkException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
public class IhdJavaSdkQueryTagVal {
public static void main(String[] args) {
// 设置服务器信息
String serverIP = "168.2.237.1";
String bakIp = "168.2.237.2";
HDDataServer server = HDServerFactory.getHDDataServer(serverIP,5673,bakIp,5673);
HDDataConnection dataConn = null;
try {
dataConn = HDConnectionFactory.getHDDataConnection(server);
dataConn.loginToServer("admin", "admin");
HDDataProvider dp = new HDDataProvider(dataConn);
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date startTime = dateFormat.parse("2025-01-01 12:00:00");
List<HDRecord> RECORDlIST = dp.queryTagRawRecordsByCount(1, startTime, true, 100);
dataConn.dispose();
} catch (HDSdkException e) {
e.printStackTrace();
} catch (ParseException e) {
throw new RuntimeException(e);
}
}
}