springboot+easypoi模板导出Excel 动态表头+多表格(一个sheet)

1.需求:将此页面的几个表格导出

在这里插入图片描述
其中表头中的仓库 集散地是是动态生成的。
首先制作Excel模板:
在这里插入图片描述
代码:

@Resource
	private RedisService redisService;
	@Override
	public void assignModel(EventInfo info, HttpServletResponse response) {
		AssginModelRes res=new AssginModelRes();
    	Object obj = redisService.getObj("modelExport-"+info.getId());
		if (null == obj) {
			throw new CustomException("找不到指定的事件!");
		}
		res = (AssginModelRes) obj;
    	try {
            // 获取workbook对象
            // 单sheet或多sheet 只需要更改此处即可
            Workbook workbook = exportAssignModelByTemplate(res) ;
            // 设置excel的文件名称
            String excelName = "资源分配模型" ;
            // 重置响应对象
            response.reset();
            // 当前日期,用于导出文件名称
            SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
            String dateStr = "["+excelName+"-"+sdf.format(new Date())+"]";
            // 指定下载的文件名--设置响应头
            response.setHeader("Content-Disposition", "attachment;filename=" +dateStr+".xls");
            response.setContentType("application/vnd.ms-excel;charset=UTF-8");
            response.setHeader("Pragma", "no-cache");
            response.setHeader("Cache-Control", "no-cache");
            response.setDateHeader("Expires", 0);
            // 写出数据输出流到页面
            OutputStream output = response.getOutputStream();
            BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);
            workbook.write(bufferedOutPut);
            bufferedOutPut.flush();
            bufferedOutPut.close();
            output.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

	}
private Workbook exportAssignModelByTemplate(AssginModelRes res) throws IOException {
	        // 手动创建导出数据,需根据具体业务进行查询 
	        // sheet1内容
	        Map<String,Object> map = new HashMap<String, Object>() ;
	        map.put("w1", res.getT1().getT1header().get(0)); 
	        map.put("w2", res.getT1().getT1header().get(1)); 
	        map.put("w3", res.getT1().getT1header().get(2));    
	        map.put("resultList1",res.getT1().getData());
	        for(int i=0;i<res.getT2().getT2header().size();i++) {
	        	 map.put("p"+(i+1), res.getT2().getT2header().get(i));
	        }
	        map.put("resultList2",res.getT2().getData());
	        map.put("resultList3",res.getT3().getData());
	        map.put("resultList4_1",res.getT4().get(0).getData());
	        map.put("resultList4_2",res.getT4().get(1).getData());
	        map.put("resultList4_3",res.getT4().get(2).getData());
	        // 设置导出配置
	        // 获取导出excel指定模版
			TemplateExportParams template = new TemplateExportParams("templates/model.xls", true);
	        // 导出excel
	        return ExcelExportUtil.exportExcel(template , map);
	    }

主要是在exportAssignModelByTemplate方法内创建map将数据动态地塞进模板里,数据实体类AssginModelRes 为

package cn.com.reformer.model.comandestimate.assignmodel;

import java.io.Serializable;
import java.util.List;

import lombok.Data;
@Data
public class AssginModelRes implements Serializable{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	/**
	 * 表格1
	 */
	private Table1 t1;
	/**
	 * 表格2
	 */
	private Table2 t2;
	/**
	 * 表格3
	 */
	private Table3 t3;
	/**
	 * 表格4
	 */
	private List<Table4> t4;
	
}

@Data
public class Table1 implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	/*
	 * 表头 最近的三个仓库
	 */
	private List<String> t1header;
	/**
	 * 表格数据
	 */
	private List<Table1Data> data;
	
}

@Data
public class Table2 implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	/**
	 * 表头:事件和次生事件的地点.
	 * 
	 * 
	 */
	private  List<String> t2header;
	private List<Map<String, Object>> data;
	
}
@Data
public class Table3 implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	/*
	 * 表头
	 */
	private List<String> t3header;
	private List<Map<String, Object>> data;

}
/*
 * 表4:分配结果
 */
@Data
public class Table4 implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	/*
	 * 表头:仓库名、集散地
	 */
	private Table4Header header;
	private List<Map<String, Object>> data;
}

数据格式示例:

{
    "msg": "操作成功",
    "code": 200,
    "data": {
        "t1": {
            "t1header": [
                "1209测试仓库",
                "研判测试仓库",
                "测试仓库"
            ],
            "data": [
                {
                    "time": "2020-09-03 19:27:17",
                    "w1": 20,
                    "w2": 14,
                    "w3": 29,
                    "sum": 63
                },
                {
                    "time": "2020-09-03 20:27:17",
                    "w1": 15,
                    "w2": 11,
                    "w3": 20,
                    "sum": 46
                },
                {
                    "time": "2020-09-03 21:27:17",
                    "w1": 27,
                    "w2": 21,
                    "w3": 43,
                    "sum": 91
                }
            ]
        },
        "t2": {
            "t2header": [
                "湖北省武汉市洪山区东湖风景区街道花城大道",
                "湖北省武汉市洪山区和平街道悠贝·菁华幼儿园花样年·花郡东区",
                "湖北省武汉市武昌区徐家棚街街道油料所社区",
                "湖北省武汉市武昌区水果湖街街道万达御湖世家",
                "湖北省武汉市武昌区水果湖街街道观星传媒万达尊"
            ],
            "data": [
                {
                    "time": "2020-09-03 19:27:17",
                    "p1": 21,
                    "p2": 17,
                    "p3": 12,
                    "p4": 15,
                    "p5": 28,
                    "sum": 93
                },
                {
                    "time": "2020-09-03 20:27:17",
                    "p1": 16,
                    "p2": 28,
                    "p3": 9,
                    "p4": 17,
                    "p5": 23,
                    "sum": 93
                },
                {
                    "time": "2020-09-03 21:27:17",
                    "p1": 28,
                    "p2": 30,
                    "p3": 17,
                    "p4": 29,
                    "p5": 21,
                    "sum": 125
                }
            ]
        },
        "t3": {
            "t3header": [
                "湖北省武汉市洪山区东湖风景区街道花城大道",
                "湖北省武汉市洪山区和平街道悠贝·菁华幼儿园花样年·花郡东区",
                "湖北省武汉市武昌区徐家棚街街道油料所社区",
                "湖北省武汉市武昌区水果湖街街道万达御湖世家",
                "湖北省武汉市武昌区水果湖街街道观星传媒万达尊"
            ],
            "data": [
                {
                    "warename": "1209测试仓库",
                    "p1": 1.26,
                    "p2": 1.05,
                    "p3": 1.37,
                    "p4": 1.5,
                    "p5": 1.31
                },
                {
                    "warename": "研判测试仓库",
                    "p1": 1.16,
                    "p2": 1.25,
                    "p3": 1.02,
                    "p4": 1.7,
                    "p5": 1.57
                },
                {
                    "warename": "测试仓库",
                    "p1": 1.53,
                    "p2": 1.29,
                    "p3": 1.07,
                    "p4": 1.15,
                    "p5": 1.08
                }
            ]
        },
        "t4": [
            {
                "header": {
                    "ware1": "1209测试仓库",
                    "places": [
                        "湖北省武汉市洪山区东湖风景区街道花城大道",
                        "湖北省武汉市洪山区和平街道悠贝·菁华幼儿园花样年·花郡东区",
                        "湖北省武汉市武昌区徐家棚街街道油料所社区",
                        "湖北省武汉市武昌区水果湖街街道万达御湖世家",
                        "湖北省武汉市武昌区水果湖街街道观星传媒万达尊"
                    ]
                },
                "data": [
                    {
                        "p0": "实际需求dj(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "实际需求zj(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "分配量∑χφ(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "满意度Rj(t)",
                        "p1": 0.62,
                        "p2": 0.59,
                        "p3": 0.68,
                        "p4": 0.6,
                        "p5": 0.61
                    }
                ]
            },
            {
                "header": {
                    "ware1": "研判测试仓库",
                    "places": [
                        "湖北省武汉市洪山区东湖风景区街道花城大道",
                        "湖北省武汉市洪山区和平街道悠贝·菁华幼儿园花样年·花郡东区",
                        "湖北省武汉市武昌区徐家棚街街道油料所社区",
                        "湖北省武汉市武昌区水果湖街街道万达御湖世家",
                        "湖北省武汉市武昌区水果湖街街道观星传媒万达尊"
                    ]
                },
                "data": [
                    {
                        "p0": "实际需求dj(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "实际需求zj(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "分配量∑χφ(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "满意度Rj(t)",
                        "p1": 0.62,
                        "p2": 0.59,
                        "p3": 0.68,
                        "p4": 0.6,
                        "p5": 0.61
                    }
                ]
            },
            {
                "header": {
                    "ware1": "测试仓库",
                    "places": [
                        "湖北省武汉市洪山区东湖风景区街道花城大道",
                        "湖北省武汉市洪山区和平街道悠贝·菁华幼儿园花样年·花郡东区",
                        "湖北省武汉市武昌区徐家棚街街道油料所社区",
                        "湖北省武汉市武昌区水果湖街街道万达御湖世家",
                        "湖北省武汉市武昌区水果湖街街道观星传媒万达尊"
                    ]
                },
                "data": [
                    {
                        "p0": "实际需求dj(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "实际需求zj(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "分配量∑χφ(t)",
                        "p1": 21,
                        "p2": 17,
                        "p3": 12,
                        "p4": 15,
                        "p5": 28
                    },
                    {
                        "p0": "满意度Rj(t)",
                        "p1": 0.62,
                        "p2": 0.59,
                        "p3": 0.68,
                        "p4": 0.6,
                        "p5": 0.61
                    }
                ]
            }
        ]
    }
}

最终导出的Excel 为:
在这里插入图片描述

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