FastExcel 2025 新版：百万级数据读写与 Chat2Excel 交互指南

FastExcel.write(outputStream, Employee.class)
    .sheet("员工信息")
    .doWrite(employeeList);

<dependency>
    <groupId>com.fastexcelgroupId>
    <artifactId>fastexcelartifactId>
    <version>2025.1.0version>
dependency>

public class Employee {
    @ExcelProperty("姓名")
    private String name;

    @ExcelProperty("年龄")
    private Integer age;

    // 省略 getter 和 setter 方法
}

List<Employee> employeeList = new ArrayList<>();
// 添加员工数据

FastExcel.write(outputStream, Employee.class)
    .sheet("员工信息")
    .doWrite(employeeList);

FastExcel.read(inputStream, Employee.class, new ReadListener<Employee>() {
    @Override
    public void invoke(Employee employee, AnalysisContext context) {
        // 处理每一行数据
        System.out.println(employee.getName() + "，年龄：" + employee.getAge());
    }

    @Override
    public void doAfterAllAnalysed(AnalysisContext context) {
        // 数据读取完成后的操作
        System.out.println("数据读取完成！");
    }
}).sheet().doRead();