Aspose.Cells FOSS
Java
Guia de Desenvolvedores
Working with Aspose.Cells FOSS

Trabalhando com Aspose.Cells FOSS

Visão geral

Este guia abrange o fluxo de trabalho principal para criar, carregar, modificar e salvar pastas de trabalho do Excel com Aspose.Cells FOSS para Java.

Criando e Salvando uma Pasta de Trabalho

A classe Workbook é o ponto de entrada para todas as operações de planilha. Ela implementa AutoCloseable para gerenciamento limpo de recursos.

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");
}

Carregando uma Pasta de Trabalho Existente

Carregue um arquivo .xlsx existente e inspecione os diagnósticos de carregamento:

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");
}

Trabalhando com Múltiplas Planilhas

Adicionar, renomear e navegar entre planilhas:

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");
}

AutoFiltro

Ativar AutoFiltro para permitir que os usuários filtrem dados no 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");
}
 Português