EasyExcel创建动态表头，一份Sheet中创建多份子表头

1、引入EasyExcel

<dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>easyexcel</artifactId>
        <version>2.2.8</version>
</dependency>

2、准备表格头与表格数据

        //表格头
        ArrayList<List<String>> head = new ArrayList<>();
        List<String> head1 = new ArrayList<>();
        head1.add("序号");
        head.add(head1);
        List<String> head2 = new ArrayList<>();
        head2.add("姓名");
        head.add(head2);
        List<String> head3 = new ArrayList<>();
        head3.add("年龄");
        head.add(head3);
        List<String> head4 = new ArrayList<>();
        head4.add("地址");
        head.add(head4);
        List<String> head5 = new ArrayList<>();
        head5.add("时间");
        head.add(head5);

        //内容
        List<List<String>> bodyList = new ArrayList<>();
        List<String> body = new ArrayList<>();
        body.add("1");
        body.add("张三");
        body.add("15");
        body.add("北京");
        body.add("2022-09-02");
        bodyList.add(body);
        List<String> body1 = new ArrayList<>();
        body1.add("2");
        body1.add("李四");
        body1.add("20");
        body1.add("天津");
        body1.add("2022-09-03");
        bodyList.add(body1);    

3、使用表格创建多份子表并设置表格头

　　　　 String file = "D:/Demo/excel";
        File dir = new File(file);
        dir.mkdirs();
        String fileName = file+"/demo.xlsx";
        //创建EXCEL对象
        ExcelWriterBuilder builder = EasyExcel.write(fileName);
        //设置处理器，合并单元格，列宽处理器等
        builder.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy());
        //获取writer对象
        ExcelWriter writer= builder.build();
        WriteSheet sheet = EasyExcel.writerSheet(0, "个人信息").build();
        //创建两个表格并写入表头
        WriteTable tableOne = EasyExcel.writerTable(0).needHead(Boolean.TRUE).build();
        tableOne.setHead(head);

        WriteTable tableTwo = EasyExcel.writerTable(1).needHead(Boolean.TRUE).build();
        tableTwo.setHead(head);

        //写入两次数据，每次会自动生成一个表头
        writer.write(bodyList,sheet,tableOne);
        writer.write(bodyList,sheet,tableTwo);
        writer.finish();

4、完整函数

public static  void generateExcel(){
        //表格头
        ArrayList<List<String>> head = new ArrayList<>();
        List<String> head1 = new ArrayList<>();
        head1.add("序号");
        head.add(head1);
        List<String> head2 = new ArrayList<>();
        head2.add("姓名");
        head.add(head2);
        List<String> head3 = new ArrayList<>();
        head3.add("年龄");
        head.add(head3);
        List<String> head4 = new ArrayList<>();
        head4.add("地址");
        head.add(head4);
        List<String> head5 = new ArrayList<>();
        head5.add("时间");
        head.add(head5);

        //内容
        List<List<String>> bodyList = new ArrayList<>();
        List<String> body = new ArrayList<>();
        body.add("1");
        body.add("张三");
        body.add("15");
        body.add("北京");
        body.add("2022-09-02");
        bodyList.add(body);
        List<String> body1 = new ArrayList<>();
        body1.add("2");
        body1.add("李四");
        body1.add("20");
        body1.add("天津");
        body1.add("2022-09-03");
        bodyList.add(body1);


        String file = "D:/Demo/excel";
        File dir = new File(file);
        dir.mkdirs();
        String fileName = file+"/demo.xlsx";
        //创建EXCEL对象
        ExcelWriterBuilder builder = EasyExcel.write(fileName);
        //设置处理器，合并单元格，列宽处理器等
        builder.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy());
        //获取writer对象
        ExcelWriter writer= builder.build();
        WriteSheet sheet = EasyExcel.writerSheet(0, "个人信息").build();
        //创建两个表格并写入表头
        WriteTable tableOne = EasyExcel.writerTable(0).needHead(Boolean.TRUE).build();
        tableOne.setHead(head);

        WriteTable tableTwo = EasyExcel.writerTable(1).needHead(Boolean.TRUE).build();
        tableTwo.setHead(head);

        //写入两次数据，每次会自动生成一个表头
        writer.write(bodyList,sheet,tableOne);
        writer.write(bodyList,sheet,tableTwo);
        writer.finish();
    }

5、生成的最后效果

标签：body,head,Sheet,创建,ArrayList,List,表头,add,new
来源： https://www.cnblogs.com/sun-in-sky/p/16668859.html