easyexcel导出多个sheet Java示例

好的，下面是一个使用 EasyExcel 导出多个sheet 的 Java 示例代码：

public void exportExcelWithMultipleSheets(HttpServletResponse response) {
    try {
        response.setContentType("application/vnd.ms-excel");
        response.setCharacterEncoding("utf-8");
        String fileName = URLEncoder.encode("多个Sheet的Excel文件", "UTF-8");
        response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");

        OutputStream outputStream = response.getOutputStream();

        ExcelWriter excelWriter = EasyExcel.write(outputStream).build();

        // 写入第一个Sheet
        WriteSheet sheet1 = EasyExcel.writerSheet(0, "Sheet1").head(Student.class).build();
        List<Student> students1 = getStudents1(); // 获取第一个Sheet的数据
        excelWriter.write(students1, sheet1);

        // 写入第二个Sheet
        WriteSheet sheet2 = EasyExcel.writerSheet(1, "Sheet2").head(Teacher.class).build();
        List<Teacher> teachers = getTeachers(); // 获取第二个Sheet的数据
        excelWriter.write(teachers, sheet2);

        // 关闭ExcelWriter
        excelWriter.finish();
        outputStream.flush();
        outputStream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

private List<Student> getStudents1() {
    // 获取第一个Sheet的数据
    // ...
}

private List<Teacher> getTeachers() {
    // 获取第二个Sheet的数据
    // ...
}

代码中首先设置了响应头，然后创建一个 ExcelWriter 实例。接着分别创建了两个 WriteSheet 实例，分别用于写入两个 Sheet 的数据。最后通过 ExcelWriter 将数据写入 Excel 文件，并关闭 ExcelWriter。