如何使用JXL創建新的Excel文件？

Question

我正在嘗試使用jxl創建一個新的Excel文件，但我很難在他們的API文檔和在線查找示例。

Answer 1

經過一段時間的混亂后，我終於發現了一些有用的東西，看到這里還沒有找到解決方案，所以這就是我發現的：

try {
    String fileName = "file.xls";
    WritableWorkbook workbook = Workbook.createWorkbook(new File(fileName));
    workbook.createSheet("Sheet1", 0);
    workbook.createSheet("Sheet2", 1);
    workbook.createSheet("Sheet3", 2);
    workbook.write();
    workbook.close();
} catch (WriteException e) {

}

Answer 2

我知道這是一個非常古老的問題。 但是，我想我可以提供一個也添加單元格值的示例：

/**
 *
 * @author Almir Campos
 */
public class Write01
{
    public void test01() throws IOException, WriteException
    {
        // Initial settings
        File file = new File( "c:/tmp/genexcel.xls" );
        WorkbookSettings wbs = new WorkbookSettings();
        wbs.setLocale( new Locale( "en", "EN" ) );
        // Creates the workbook
        WritableWorkbook wwb = Workbook.createWorkbook( file, wbs );
        // Creates the sheet inside the workbook
        wwb.createSheet( "Report", 0 );
        // Makes the sheet writable
        WritableSheet ws = wwb.getSheet( 0 );
        // Creates a cell inside the sheet
        //CellView cv = new CellView();
        Number n;
        Label l;
        Formula f;
        for ( int i = 0; i < 10; i++ )
        {
            // A
            n = new Number( 0, i, i );
            ws.addCell( n );
            // B
            l = new Label( 1, i, "by" );
            ws.addCell( l );
            // C
            n = new Number( 2, i, i + 1 );
            ws.addCell( n );
            // D
            l = new Label( 3, i, "is" );
            ws.addCell( l );
            // E
            f = new Formula(4, i, "A" + (i+1) + "*C" + (i+1) );
            ws.addCell( f );
        }
        wwb.write();
        wwb.close();
    }
}

Answer 3

首先，您需要將Jxl Api放入java目錄，從http://www.andykhan.com/下載JXL api，解壓縮，復制jxl並粘貼如C：\\ Program Files \\ Java \\ jre7 \\ lib \\ ext。

try {
    String fileName = "file.xls";
    WritableWorkbook workbook = Workbook.createWorkbook(new File(fileName));
    WritableSheet writablesheet1 = workbook.createSheet("Sheet1", 0);
    WritableSheet writablesheet2 = workbook.createSheet("Sheet2", 1);
    WritableSheet writablesheet3 = workbook.createSheet("Sheet3", 2);
    Label label1 = new Label("Emp_Name");
    Label label2 = new Label("Emp_FName");
    Label label3 = new Label("Emp_Salary");
    writablesheet1.addCell(label1);
    writablesheet2.addCell(label2);
    writablesheet3.addCell(label3);
    workbook.write();
    workbook.close();
} catch (WriteException e) {

}

Answer 4

不確定您是否需要堅持使用JXL，但處理Excel文件的最佳庫是Apache的POI HSSF 。

我認為我提供的網站上有很多例子，但如果你需要進一步的幫助，請告訴我。 我可能會有幾個例子。

出於好奇，POI代表可憐的混淆接口，HSSF是可怕的SpreadSheet格式。 你看多少Apache喜歡Microsoft Office格式:-)

Answer 5

public void exportToExcel() {
    final String fileName = "TodoList2.xls";

    //Saving file in external storage
    File sdCard = Environment.getExternalStorageDirectory();
    File directory = new File(sdCard.getAbsolutePath() + "/javatechig.todo");

    //create directory if not exist
    if(!directory.isDirectory()){
        directory.mkdirs();
    }

    //file path
    File file = new File(directory, fileName);

    WorkbookSettings wbSettings = new WorkbookSettings();
    wbSettings.setLocale(new Locale("en", "EN"));
    WritableWorkbook workbook;


    try {
        workbook = Workbook.createWorkbook(file, wbSettings);
        //Excel sheet name. 0 represents first sheet
        WritableSheet sheet = workbook.createSheet("MyShoppingList", 0);



        Cursor  cursor = mydb.rawQuery("select * from Contact", null);

        try {
            sheet.addCell(new Label(0, 0, "id")); // column and row
            sheet.addCell(new Label(1, 0, "name"));
            sheet.addCell(new Label(2,0,"ff "));
            sheet.addCell(new Label(3,0,"uu"));
            if (cursor.moveToFirst()) {
                do {
                    String title =cursor.getString(0) ;
                    String desc = cursor.getString(1);
                    String name=cursor.getString(2);
                    String family=cursor.getString(3);

                    int i = cursor.getPosition() + 1;
                    sheet.addCell(new Label(0, i, title));
                    sheet.addCell(new Label(1, i, desc));
                    sheet.addCell(new Label(2,i,name));
                    sheet.addCell(new Label(3,i,family));
                } while (cursor.moveToNext());
            }
            //closing cursor
            cursor.close();
        } catch (RowsExceededException e) {
            e.printStackTrace();
        } catch (WriteException e) {
            e.printStackTrace();
        }
        workbook.write();
        try {
            workbook.close();
        } catch (WriteException e) {
            e.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}