动态列导出（easyPOI）
package cn.netinnet.audit.mbg;
import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.params.ExcelExportEntity;
import com.alibaba.fastjson.JSONObject;
import org.apache.poi.ss.usermodel.Workbook;
import org.junit.jupiter.api.Test;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* @Description:
* @Author Chenzb
* @Date 2022/6/8 10:28
* @Version 1.0
*/
public class excelTest {
private static List<ExcelExportEntity> dynamicNewAddExcel(Map<String, PlatformStatisParamRespData> paramInfo) {
//表头的集合，用于添加表头
List<ExcelExportEntity> entityList = new ArrayList<>();
//参数信息--[用于动态拼接列头]
final Iterator<String> iterator = paramInfo.keySet().iterator();
while (iterator.hasNext()) {
final String paramKeyStr = iterator.next();
final String paramNameStr = paramInfo.get(paramKeyStr).getDataName();
//列头由参数汉字名称,参数key为列key
entityList.add(new ExcelExportEntity(paramNameStr, paramKeyStr, 30));
}
return entityList;
}
private static List<Map<String, Object>> dynamicListDataByKey(PlatformIncomeRespDTO statisData) {
//参数类型
final Set<String> statisParamKey = statisData.getParamInfo().keySet();
List<List<BiPlatformStatisRespDTO>> data = statisData.getStatisData();
//最终的数据
List<Map<String, Object>> datas = new ArrayList<>();
for (int i = 0; i < data.size(); i++) {
Map<String, Object> hashMap = new LinkedHashMap<>(10);
List<BiPlatformStatisRespDTO> nums = data.get(i);
//参数的验证
for (String paramKey : statisParamKey) {
for (BiPlatformStatisRespDTO paramData : nums) {
if (paramKey.equals(paramData.getParamKey())) {
hashMap.put(paramData.getParamKey(), paramData.getValue());
}
}
}
datas.add(hashMap);
}
return datas;
}
@Test
public void Administrator_84_20191226095523() throws IOException {
System.out.println("欢迎使用单元测试方法【Administrator_84()_20191226095523】");
System.out.println("此方法测试描述：【】");
// //拼装第一个数据---------------------------------------------------------------------
// final PlatformIncomeRespDTO platformIncomeRespDTO1 = new PlatformIncomeRespDTO();
// //拼装时间维度
// //拼装头信息
// Map paramInfo1=new HashMap<>();
// paramInfo1.put("userCount", new PlatformStatisParamRespData("用户数","userCount"));
// paramInfo1.put("friendsCount", new PlatformStatisParamRespData("好友数","friendsCount"));
// platformIncomeRespDTO1.setParamInfo(paramInfo1);
// //拼装数据
// final ArrayList> data1 = Lists.newArrayList();
// data1.add(Lists.newArrayList(new BiPlatformStatisRespDTO("userCount","100"),new BiPlatformStatisRespDTO("friendsCount","200")));
// platformIncomeRespDTO1.setStatisData(data1);
//
//
// //拼装第二个数据---------------------------------------------------------------------
// final PlatformIncomeRespDTO platformIncomeRespDTO2 = new PlatformIncomeRespDTO();
// //拼装时间维度
// //拼装头信息
// Map paramInfo2=new HashMap<>();
// paramInfo2.put("userCount", new PlatformStatisParamRespData("用户数","userCount"));
// paramInfo2.put("friendsCount", new PlatformStatisParamRespData("好友数","friendsCount"));
// platformIncomeRespDTO2.setParamInfo(paramInfo2);
//
// //拼装数据
// final ArrayList> data2 = Lists.newArrayList();
// data2.add(Lists.newArrayList(new BiPlatformStatisRespDTO("userCount","500"),new BiPlatformStatisRespDTO("friendsCount","600")));
// platformIncomeRespDTO2.setStatisData(data2);
//
//
//
// // 第三组
// //拼装第二个数据---------------------------------------------------------------------
// final PlatformIncomeRespDTO platformIncomeRespDTO3 = new PlatformIncomeRespDTO();
// //拼装时间维度
// //拼装头信息
// Map paramInfo3=new HashMap<>();
// paramInfo3.put("userCount", new PlatformStatisParamRespData("用户数","userCount"));
// paramInfo3.put("friendsCount", new PlatformStatisParamRespData("好友数","friendsCount"));
// platformIncomeRespDTO3.setParamInfo(paramInfo3);
//
// //拼装数据
// final ArrayList> data3 = Lists.newArrayList();
// data3.add(Lists.newArrayList(new BiPlatformStatisRespDTO("userCount","1500"),new BiPlatformStatisRespDTO("friendsCount","1600")));
// platformIncomeRespDTO3.setStatisData(data3);
//
//
// final ArrayList platformIncomeRespDTOS = Lists.newArrayList(platformIncomeRespDTO1, platformIncomeRespDTO2,platformIncomeRespDTO3);
// System.out.println(JSONObject.toJSONString(platformIncomeRespDTOS));
String json = "\n" +
" {\n" +
" \"paramInfo\": {\n" +
" \"userCount\": {\n" +
" \"dataName\": \"用户数\", \n" +
" \"dateKey\": \"userCount\"\n" +
" }, \n" +
" \"friendsCount\": {\n" +
" \"dataName\": \"好友数\", \n" +
" \"dateKey\": \"friendsCount\"\n" +
" }, \n" +
" \"phoneNo\": {\n" +
" \"dataName\": \"电话号码\", \n" +
" \"dateKey\": \"phoneNo\"\n" +
" }\n" +
" }, \n" +
" \"statisData\": [\n" +
" [\n" +
" {\n" +
" \"paramKey\": \"userCount\", \n" +
" \"value\": \"100\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"friendsCount\", \n" +
" \"value\": \"200\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"phoneNo\", \n" +
" \"value\": \"11xx0\"\n" +
" }\n" +
" ], \n" +
" [\n" +
" {\n" +
" \"paramKey\": \"userCount\", \n" +
" \"value\": \"300\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"friendsCount\", \n" +
" \"value\": \"400\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"phoneNo\", \n" +
" \"value\": \"13xx0\"\n" +
" }\n" +
" ],\n" +
" [\n" +
" {\n" +
" \"paramKey\": \"userCount\", \n" +
" \"value\": \"800\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"friendsCount\", \n" +
" \"value\": \"900\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"phoneNo\", \n" +
" \"value\": \"11xxx0\"\n" +
" }\n" +
" ], \n" +
" [\n" +
" {\n" +
" \"paramKey\": \"userCount\", \n" +
" \"value\": \"1300\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"friendsCount\", \n" +
" \"value\": \"1400\"\n" +
" }, \n" +
" {\n" +
" \"paramKey\": \"phoneNo\", \n" +
" \"value\": \"xxx110\"\n" +
" }\n" +
" ]\n" +
" ]\n" +
" }\n" +
"\n";
PlatformIncomeRespDTO platformIncomeRespDTOS1 = JSONObject.parseObject(json, PlatformIncomeRespDTO.class);
Map<String, PlatformStatisParamRespData> paramInfo = platformIncomeRespDTOS1.getParamInfo();
//拼装列头
List<ExcelExportEntity> colList = dynamicNewAddExcel(paramInfo);
//数据拼装
List<Map<String, Object>> list = dynamicListDataByKey(platformIncomeRespDTOS1);
//文件名称
final Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(), colList, list);
//此功能与【拼装列头】中的 platformXh.setMergeVertical(true);功能效果一样,可直接使用 platformXh.setMergeVertical(true);进行纵向合并
//动态合并纵列[mergeMap key列索引(从0开始),value依赖的列,没有传空,startRow 开始行(从零开始)]
//Map mer = new HashMap<>();
//mer.put(0, new int[]{});
//PoiMergeCellUtil.mergeCells(workbook.getSheetAt(0), mer, 1);
final FileOutputStream fileOutputStream = new FileOutputStream("E:\\cs\\1.xls");
//导出excel
downLoadExcel(null, fileOutputStream, workbook);
}
public static void downLoadExcel(String fileName, FileOutputStream outputStream, Workbook workbook)
throws IOException {
try {
workbook.write(outputStream);
} catch (IOException e) {
throw new RuntimeException(e.getMessage());
} finally {
outputStream.close();
}
}
}
JSON测试样例
{
"paramInfo": {
"userCount": {
"dataName": "用户数",
"dateKey": "userCount"
},
"friendsCount": {
"dataName": "好友数",
"dateKey": "friendsCount"
},
"phoneNo": {
"dataName": "电话号码",
"dateKey": "phoneNo"
}
},
"statisData": [
[
{
"paramKey": "userCount",
"value": "100"
},
{
"paramKey": "friendsCount",
"value": "200"
},
{
"paramKey": "phoneNo",
"value": "11xx0"
}
],
[
{
"paramKey": "userCount",
"value": "300"
},
{
"paramKey": "friendsCount",
"value": "400"
},
{
"paramKey": "phoneNo",
"value": "13xx0"
}
],
[
{
"paramKey": "userCount",
"value": "800"
},
{
"paramKey": "friendsCount",
"value": "900"
},
{
"paramKey": "phoneNo",
"value": "11xxx0"
}
],
[
{
"paramKey": "userCount",
"value": "1300"
},
{
"paramKey": "friendsCount",
"value": "1400"
},
{
"paramKey": "phoneNo",
"value": "xxx110"
}
]
]
}