Hämtar detaljer om externa datakällor

Hämtar detaljer om externa datakällor

Följande exempel visar hur man får databasanslutning och andra detaljer. Exemplet använder en enkel excelfil som innehåller länkar till extern datakälla (SQL Server).

När koden körs skrivs anslutningsdetaljerna ut till konsolen.

SQL-anslutningsinformation

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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(RetrievingExternalDataSourcesDetails.class);
// Open the template Excel file
Workbook workbook = new Workbook(dataDir + "connection.xlsx");
// Get the external data connections
ExternalConnectionCollection connections = workbook.getDataConnections();
// Get the count of the collection connection
int connectionCount = connections.getCount();
// Create an external connection object
ExternalConnection connection = null;
// Loop through all the connections in the file
for (int i = 0; i < connectionCount; i++) {
connection = connections.get(i);
if (connection instanceof DBConnection) {
// Instantiate the DB Connection
DBConnection dbConn = (DBConnection) connection;
// Print the complete details of the object
System.out.println("Command: " + dbConn.getCommand());
System.out.println("Command Type: " + dbConn.getCommandType());
System.out.println("Description: " + dbConn.getConnectionDescription());
System.out.println("Id: " + dbConn.getConnectionId());
System.out.println("Info: " + dbConn.getConnectionInfo());
System.out.println("Credentials: " + dbConn.getCredentials());
System.out.println("Name: " + dbConn.getName());
System.out.println("OdcFile: " + dbConn.getOdcFile());
System.out.println("Source file: " + dbConn.getSourceFile());
System.out.println("Type: " + dbConn.getType());
// Get the parameters collection (if the connection object has)
ConnectionParameterCollection parameterCollection = dbConn.getParameters();
// Loop through all the parameters and obtain the details
int paramCount = parameterCollection.getCount();
for (int j = 0; j < paramCount; j++) {
ConnectionParameter param = parameterCollection.get(j);
System.out.println("Cell reference: " + param.getCellReference());
System.out.println("Parameter name: " + param.getName());
System.out.println("Prompt: " + param.getPrompt());
System.out.println("SQL Type: " + param.getSqlType());
System.out.println("Param Type: " + param.getType());
System.out.println("Param Value: " + param.getValue());
}
}
}