Aspose.Cells FOSS
Java
Utvecklarhandbok
Working with Aspose.Cells FOSS

Arbeta med Aspose.Cells FOSS

Översikt

Denna guide täcker det grundläggande arbetsflödet för att skapa, ladda, ändra och spara Excel‑arbetsböcker med Aspose.Cells FOSS för Java.

Skapa och spara en arbetsbok

Workbook-klassen är ingångspunkten för alla kalkylbladsoperationer. Den implementerar AutoCloseable för ren resurshantering:

import com.aspose.cells_foss.Cell;
import com.aspose.cells_foss.Style;
import com.aspose.cells_foss.Workbook;
import com.aspose.cells_foss.Worksheet;

try (Workbook workbook = new Workbook()) {
    Worksheet sheet = workbook.getWorksheets().get(0);
    sheet.setName("Sales");

    sheet.getCells().get("A1").putValue("Product");
    sheet.getCells().get("B1").putValue("Revenue");
    sheet.getCells().get("A2").putValue("Widget A");
    Cell b2 = sheet.getCells().get("B2");
    b2.putValue(42500.75);

    Style style = b2.getStyle();
    style.getFont().setBold(true);
    style.setCustom("#,##0.00");
    b2.setStyle(style);

    workbook.save("sales.xlsx");
}

Laddar en befintlig arbetsbok

Läs in en befintlig .xlsx-fil och inspektera laddningsdiagnostik:

import com.aspose.cells_foss.LoadIssue;
import com.aspose.cells_foss.LoadOptions;
import com.aspose.cells_foss.Workbook;

LoadOptions options = new LoadOptions();
options.setStrictMode(false);
options.setTryRepairPackage(true);
options.setTryRepairXml(true);

try (Workbook workbook = new Workbook("input.xlsx", options)) {
    if (workbook.getLoadDiagnostics().hasRepairs()) {
        for (LoadIssue issue : workbook.getLoadDiagnostics().getIssues()) {
            System.out.println(issue.getMessage());
        }
    }
    workbook.getDocumentProperties().setAuthor("cells-foss");
    workbook.save("output.xlsx");
}

Arbeta med flera kalkylblad

Lägg till, döp om och navigera arbetsblad:

import com.aspose.cells_foss.Workbook;
import com.aspose.cells_foss.Worksheet;

try (Workbook workbook = new Workbook()) {
    Worksheet sheet1 = workbook.getWorksheets().get(0);
    sheet1.setName("Q1");
    workbook.getWorksheets().addSheet("Q2");
    Worksheet sheet2 = workbook.getWorksheets().get(1);
    sheet2.setName("Q2 Summary");
    workbook.save("multi.xlsx");
}

AutoFilter

Aktivera AutoFilter så att användare kan filtrera data i Excel:

import com.aspose.cells_foss.Workbook;
import com.aspose.cells_foss.Worksheet;

try (Workbook workbook = new Workbook()) {
    Worksheet sheet = workbook.getWorksheets().get(0);
    sheet.getCells().get("A1").putValue("Product");
    sheet.getCells().get("B1").putValue("Category");
    sheet.getAutoFilter().setRange("A1:B1");
    workbook.save("filtered.xlsx");
}
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