使用hutool工具类进行导出

        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.0.6</version>
        </dependency>

    @Test
    public void merTest() {
//测试使用的数据
        TestBean bean1 = new TestBean();
        bean1.setName("张三");
        bean1.setAge(22);
        bean1.setPass(true);
        bean1.setScore(66.30);
        bean1.setExamDate(LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd hh:mm:ss")));

        TestBean bean2 = new TestBean();
        bean2.setName("李四");
        bean2.setAge(28);
        bean2.setPass(false);
        bean2.setScore(38.50);
        bean2.setExamDate(LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd hh:mm:ss")));
//传入list集合数组
        List<TestBean> rows = CollUtil.newArrayList(bean1, bean2);

        // 通过工具类创建writer
        ExcelWriter writer = ExcelUtil.getBigWriter("E:/data/excel/4.xlsx");

        String[] names = {"name", "age", "score", "isPass", "examDate"};
        String[] names2 = {"姓名", "年龄", "分数", "是否通过", "考试时间"};

        for (int i = 0; i < names.length; i++) {
            writer.addHeaderAlias(names[i], names2[i]);
        }
        //todo 设置自动换行(时间)
        writer.setColumnWidth(4, 25);
// 一次性写出内容，使用默认样式，强制输出标题
        writer.write(rows, true);
// 关闭writer，释放内存
        writer.close();
    }