EasyExcel实战 自定义动态化导出excel

Java操作excel表格，除了运用POI技术，阿里开发一个工具简易操作EasyExcel，接下来我们来实战操作下自定义动态化导出excel，自定义动态化为自定义标题，合并单元格

准备环境

POM.XML

       
            com.alibaba
            easyexcel
            2.2.7
        

实战代码

package com.example.excel;

import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.write.builder.ExcelWriterBuilder;
import com.alibaba.excel.write.merge.LoopMergeStrategy;
import jdk.nashorn.internal.runtime.JSONFunctions;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.CollectionUtils;
import org.springframework.util.NumberUtils;

import java.util.*;
import java.util.stream.Collectors;

/**
 * describe: 导出Excel 表格
 *
 * @author 
 * @date 
 */
@Slf4j
public class WriteExcelUtils {

    public static void main(String[] args) {
        List titleList = new ArrayList<>();
        titleList.add("客户名称");
        titleList.add("客户编号");
        titleList.add("供应商名称");
        titleList.add("合同名称");
        titleList.add("合同编号");
        titleList.add("要合并");

        List mergeTitles = new ArrayList<>();
        mergeTitles.add("客户名称");
        mergeTitles.add("供应商名称");
        mergeTitles.add("合同编号");

        List> dataList = new ArrayList<>();
        for (int i = 0; i< 10; i++) {
            List