在工作簿中加载特定工作表

默认情况下，Aspose.Cells 将整个电子表格加载到内存中。可以只加载特定的工作表。这可以提高性能并消耗更少的内存。在处理包含多个工作表的大型工作簿时，此方法很有用。

在工作簿中加载特定工作表

// 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(LoadSpecificWorksheetsinWorkbook.class);

//Define a new Workbook
Workbook workbook;

/// Load the workbook with the specified worksheet only.
LoadOptions loadOptions = new LoadOptions(LoadFormat.XLSX);
loadOptions.setLoadFilter(new CustomLoad());

// Creat the workbook.
workbook = new Workbook(dataDir+ "TestData.xlsx", loadOptions);

// Perform your desired task.

// Save the workbook.
workbook.save(dataDir+ "outputFile.out.xlsx");


public class CustomLoad extends LoadFilter 
{
	public void startSheet(Worksheet sheet)
    {
        if (sheet.getName() == "Sheet2")
        {
            // Load everything from worksheet "Sheet2"
            this.setLoadDataFilterOptions(LoadDataFilterOptions.ALL);
        }
        else
        {
            // Load nothing
            this.setLoadDataFilterOptions(LoadDataFilterOptions.NONE);
        }
    }
}