根据TagID查询snapshot记录

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根据TagID查询snapshot记录

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函数:

public HDRecord querySnapshotByTagID(int tagID) throws HDSdkException

 

参数:

参数名称

数据类型

参数说明

默认值

tagId

int

tag点id

 

 

返回值:

返回值类型

返回值说明

HDRecord

返回快照数据记录

 

异常:

当参数出现错误时,向上抛出IllegalArgumentException异常

当后台查询出错时,向上抛出HDSdkException异常

 

说明:

该接口用于根据TagID查询snapshot记录。

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;

 

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);

          HDRecord hdRecord = dp.querySnapshotByTagID(1);

           dataConn.dispose();

       } catch (HDSdkException e) {

           e.printStackTrace();

       }

}