查找与外部数据连接相关的查询表和列表对象
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查找与外部数据连接相关的查询表和列表对象
有时您需要找出与某些外部数据连接相关的查询表和列表对象。查询表与连接ID相关联,而列表对象与查询表相关。
以下示例代码解释了如何找到与外部数据连接相关的查询表和列表对象。该代码使用示例Excel文件,您可以从提供的链接中下载。您还可以在本文底部看到此示例代码的输出。
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java | |
public static void main(String[] args) throws Exception { | |
// The path to the documents directory | |
String dataDir = Utils.getSharedDataDir(FindReferenceCellsFromExternalConnection.class) + "tables/"; | |
// Load workbook object | |
Workbook workbook = new Workbook(dataDir + "sample.xlsm"); | |
// Check all the connections inside the workbook | |
for (int i = 0; i < workbook.getDataConnections().getCount(); i++) { | |
ExternalConnection externalConnection = workbook.getDataConnections().get(i); | |
System.out.println("connection: " + externalConnection.getName()); | |
PrintTables(workbook, externalConnection); | |
System.out.println(); | |
} | |
} | |
public static void PrintTables(Workbook workbook, ExternalConnection ec) { | |
// Iterate all the worksheets | |
for (int j = 0; j < workbook.getWorksheets().getCount(); j++) { | |
Worksheet worksheet = workbook.getWorksheets().get(j); | |
// Check all the query tables in a worksheet | |
for (int k = 0; k < worksheet.getQueryTables().getCount(); k++) { | |
QueryTable qt = worksheet.getQueryTables().get(k); | |
// Check if query table is related to this external connection | |
if (ec.getId() == qt.getConnectionId() && qt.getConnectionId() >= 0) { | |
// Print the query table name and print its "Refers To" | |
// range | |
System.out.println("querytable " + qt.getName()); | |
String n = qt.getName().replace('+', '_').replace('=', '_'); | |
Name name = workbook.getWorksheets().getNames().get("'" + worksheet.getName() + "'!" + n); | |
if (name != null) { | |
Range range = name.getRange(); | |
if (range != null) { | |
System.out.println("Refers To: " + range.getRefersTo()); | |
} | |
} | |
} | |
} | |
// Iterate all the list objects in this worksheet | |
for (int k = 0; k < worksheet.getListObjects().getCount(); k++) { | |
ListObject table = worksheet.getListObjects().get(k); | |
// Check the data source type if it is query table | |
if (table.getDataSourceType() == TableDataSourceType.QUERY_TABLE) { | |
// Access the query table related to list object | |
QueryTable qt = table.getQueryTable(); | |
// Check if query table is related to this external | |
// connection | |
if (ec.getId() == qt.getConnectionId() && qt.getConnectionId() >= 0) { | |
// Print the query table name and print its refersto | |
// range | |
System.out.println("querytable " + qt.getName()); | |
System.out.println("Table " + table.getDisplayName()); | |
System.out.println("refersto: " + worksheet.getName() + "!" | |
+ CellsHelper.cellIndexToName(table.getStartRow(), table.getStartColumn()) + ":" | |
+ CellsHelper.cellIndexToName(table.getEndRow(), table.getEndColumn())); | |
} | |
} | |
} | |
} | |
}// end-PrintTables |
控制台输出
这是使用此【示例Excel文件】(5472550.xlsm)的代码的控制台输出。
connection: AAPL Connection
querytable hp?s=AAPL+Historical+Prices
refersto: =Sheet1!$Q$1:$W$69
connection: BOSL066360W7_SQLEXPRESS Test
querytable BOSL066360W7_SQLEXPRESS Test
Table Table_BOSL066360W7_SQLEXPRESS_Test
refersto: Sheet1!A1:B3
connection: BOSL066360W7_SQLEXPRESS Test1
querytable BOSL066360W7_SQLEXPRESS Test_1
Table Table_BOSL066360W7_SQLEXPRESS_Test_1
refersto: Sheet1!D1:E2
connection: UWTI Connection
querytable hp?s=UWTI+Historical+Prices
refersto: =Sheet1!$H$1:$N$69