您的第一个 Aspose.Cells 应用程序 Hello World

创建Hello World应用程序

使用 Aspose.Cells API 创建 Hello World 应用程序:

  1. 创建 Workbook 类的一个实例。
  2. 应用许可证:
    1. 如果您已购买许可证,请在应用程序中使用该许可证以获得对 Aspose.Cells 全部功能的访问。
    2. 如果您正在使用组件的评估版本 (如果您在没有许可证的情况下使用 Aspose.Cells),请跳过此步骤。
  3. 创建一个新的 Microsoft Excel 文件,或者打开现有文件,在其中您想要添加/更新一些文本。
  4. 访问 Microsoft Excel 文件中的工作表的任何单元格。
  5. 在访问的单元格中插入单词Hello World!
  6. 生成修改后的Microsoft Excel文件。

下面的示例演示了上述步骤。

创建一个工作簿

以下示例从头开始创建一个新的工作簿,在第一个工作表的单元格A1中写入单词"Hello World!",然后保存文件。

生成的电子表格

todo:image_alt_text

// 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(CreatingWorkbook.class);
// Creating a file input stream to reference the license file
FileInputStream fstream = new FileInputStream("Aspose.Cells.lic");
// Create a License object
License license = new License();
// Applying the Aspose.Cells license
license.setLicense(fstream);
// Instantiating a Workbook object that represents a Microsoft Excel
// file.
Workbook wb = new Workbook();
// Note when you create a new workbook, a default worksheet, "Sheet1", is by default added to the workbook. Accessing the
// first worksheet in the book ("Sheet1").
Worksheet sheet = wb.getWorksheets().get(0);
// Access cell "A1" in the sheet.
Cell cell = sheet.getCells().get("A1");
// Input the "Hello World!" text into the "A1" cell
cell.setValue("Hello World!");
// Save the Microsoft Excel file.
wb.save(dataDir + "MyBook.xls", FileFormatType.EXCEL_97_TO_2003);
wb.save(dataDir + "MyBook.xlsx");
wb.save(dataDir + "MyBook.ods");

打开现有文件

以下示例打开名为book1.xls的现有Microsoft Excel模板文件,在第一个工作表的单元格A1中写入单词"Hello World!",然后将工作簿保存为新文件。

// 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(OpeningExistingFile.class);
// Creating a file input stream to reference the license file
FileInputStream fstream = new FileInputStream("Aspose.Cells.lic");
// Create a License object
License license = new License();
// Set the license of Aspose.Cells to avoid the evaluation limitations
license.setLicense(fstream);
// Instantiate a Workbook object that represents an Excel file
Workbook workbook = new Workbook(dataDir + "book1.xls");
// Get the reference of "A1" cell from the cells of a worksheet
Cell cell = workbook.getWorksheets().get(0).getCells().get("A1");
// Set the "Hello World!" value into the "A1" cell
cell.setValue("Hello World!");
// Write the Excel file
workbook.save(dataDir + "HelloWorld.xls", FileFormatType.EXCEL_97_TO_2003);
workbook.save(dataDir + "HelloWorld.xlsx");
workbook.save(dataDir + "HelloWorld.ods");