java - AbstractExcelView 在基于 Spring 的应用程序中被弃用

Question

我想在基于 Spring-Boot 的应用程序中实现将数据导出到 Excel 文件。

当我打算使用 AbstractExcelView ，但我知道 AbstractExcelView 已被弃用。导出 Excel 文件的替代解决方案是什么？

Answer 1

从 Spring 4.2 开始，您可以尝试使用 AbstractXlsView 及其 AbstractXlsxView 和 AbstractXlsxStreamingView 变体来代替 AbstractExcelView

例子之一如下

    import com.example.Course;
    import org.apache.poi.ss.usermodel.Row;
    import org.apache.poi.ss.usermodel.Sheet;
    import org.springframework.web.servlet.view.document.AbstractXlsView;
    import org.apache.poi.ss.usermodel.Workbook;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.text.DateFormat;
    import java.util.List;
    import java.util.Map;

    public class XlsView extends AbstractXlsView {

        private static final DateFormat DATE_FORMAT = DateFormat.getDateInstance(DateFormat.SHORT);

        @Override
        protected void buildExcelDocument(Map<String, Object> model,
                                          Workbook workbook,
                                          HttpServletRequest request,
                                          HttpServletResponse response) throws Exception {

            // change the file name
            response.setHeader("Content-Disposition", "attachment; filename=\"my-xls-file.xls\"");

            @SuppressWarnings("unchecked")
            List<Course> courses = (List<Course>) model.get("courses");

            // create excel xls sheet
            Sheet sheet = workbook.createSheet("Spring MVC AbstractXlsView");

            // create header row
            Row header = sheet.createRow(0);
            header.createCell(0).setCellValue("ID");
            header.createCell(1).setCellValue("Name");
            header.createCell(2).setCellValue("Date");

            // Create data cells
            int rowCount = 1;
            for (Course course : courses){
                Row courseRow = sheet.createRow(rowCount++);
                courseRow.createCell(0).setCellValue(course.getId());
                courseRow.createCell(1).setCellValue(course.getName());
                courseRow.createCell(2).setCellValue(DATE_FORMAT.format(course.getDate()));
            }
        }
    }

另一个例子

import com.example.Course;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.web.servlet.view.document.AbstractXlsxStreamingView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.text.DateFormat;
import java.util.List;
import java.util.Map;

public class XlsxStreamingView extends AbstractXlsxStreamingView {

    private static final DateFormat DATE_FORMAT = DateFormat.getDateInstance(DateFormat.SHORT);

    @Override
    protected void buildExcelDocument(Map<String, Object> model,
                                      Workbook workbook, HttpServletRequest request,
                                      HttpServletResponse response) throws Exception {
        // change the file name
        response.setHeader("Content-Disposition", "attachment; filename=\"my-xlsxStreaming-file.xlsx\"");

        @SuppressWarnings("unchecked")
        List<Course> courses = (List<Course>) model.get("courses");

        // create excel xls sheet
        Sheet sheet = workbook.createSheet("Spring MVC AbstractXlsxStreamingView");

        // create header row
        Row header = sheet.createRow(0);
        header.createCell(0).setCellValue("ID");
        header.createCell(1).setCellValue("Name");
        header.createCell(2).setCellValue("Date");

        // Create data cells
        int rowCount = 1;
        for (Course course : courses){
            Row courseRow = sheet.createRow(rowCount++);
            courseRow.createCell(0).setCellValue(course.getId());
            courseRow.createCell(1).setCellValue(course.getName());
            courseRow.createCell(2).setCellValue(DATE_FORMAT.format(course.getDate()));
        }
    }
}