在一次做项目时,需要导出自定义的表格,然后就有了这次实践,然后分享给大家仅供参考!
表格样式展示
先看数据结构
0 = {ExamExamRoomListModel@10157} "ExamExamRoomListModel(super=com.tfjybj.itoo.exam.model.ExamExamRoomListModel@772bec3f, examId=1081922739738075137, examName=税法与税务会计考试, examTimeSlot=15:51--17:50, examDate=2019-01-07 , examRoomId=1081922887100751874, examRoomName=实训楼103机房, invigilatorMainId=1071011036863262722, invigilatorMainName=李仲林, invigilatorSubId=1071010777927905281, invigilatorSubName=甄立, week=null,
// 孩子节点
childList=[ExamExamineeListModel(super=com.tfjybj.itoo.exam.model.ExamExamineeListModel@88bb82c3, examineeId=1081922887767646209, examineeName=安紫莹, examineeCode=17090134022, examineeClass=17级会计专科4班), ExamExamineeListModel(super=com.tfjybj.itoo.exam.model.ExamExamineeListModel@fd7a732a, examineeId=1081922887776034817, examineeName=白雨, examineeCode=17090134012, examineeClass=17级会计专科4班), ExamExamineeListModel(super=com.tfjybj.itoo.exam.model.ExamExamineeListModel@6b05208e, examineeId=1081922887780229121, examineeName=陈梦丽, examineeCode=17090134039, examineeClass=17级会计专科4班), ExamExamineeListModel(super=com.tfjybj.itoo.exam"
前端方法
// 前端调取样式(angular)
/**
* 导出考生签到表(ts中的方法,在HTML中调取就哦了)
* @since 2019-1-8 20:57:36
* @author Ryan
*/
checkInTable() {
const excel = [];
this.checkedItem.forEach(
item => {
excel.push(item.id);
}
);
let url: string;
if (excel.length === 0) {
this.openAndCloseAll();
// this.tipMsgService.createMessage('温馨提示', '请选择要导出的数据');
} else {
url = 'exam-web/examinee/customExportExcel/' + '?examIdList='+excel;
const downURL = this.http.getServerUrl(url);
window.open(downURL);
URL.revokeObjectURL(downURL);
}
}
后端方法
// controller方法中的方法定义
@ApiOperation(value = "导出Excel表格,分sheet,自定义表头")
@GetMapping(value = "/customExportExcel")
public void customExportExcel(@RequestParam List examIdList,HttpServletRequest request,
HttpServletResponse response) {
examineeService.customExportExcel(examIdList,request,response);
}
// 接口层省略..............
/**
* @param examIdList 这个是传的实体集合
*/
@Override
public void customExportExcel(List examIdList, HttpServletRequest request, HttpServletResponse response) {
/**
* 利用前端传过来的参数,查询所要的数据
*/
List newInfomation = new ArrayList<>();
List examExamRoomListModelList = examRoomService.selectExamAndExamRoomInfomation(examIdList);
examExamRoomListModelList.forEach(examExamRoomListModel -> {
ExamExamRoomListModel exam = new ExamExamRoomListModel();
examExamRoomListModel.setExamRoomName(examExamRoomListModel.getExamRoomName().substring(0, examExamRoomListModel.getExamRoomName().indexOf("-")));
List examExamineeListModels = examineeDao.selectExamineeInfomation(examExamRoomListModel.getExamId(), examExamRoomListModel.getExamRoomId());
BeanUtils.copyProperties(examExamRoomListModel, exam);
exam.setChildList(examExamineeListModels);
newInfomation.add(exam);
});
// 开始构建表格,自定义表头
try {
//在excel中的第3行每列的参数
String[] head0 = new String[]{"考试时间", "考试时间", "考试时间", "考试时间", "考试时间", "地点", "地点", "地点", "考生人数", "考生人数",
};
//在excel中的第4行每列（合并列）的参数
String[] head1 = new String[]{"座位号", "姓名", "学号", "班级", "学生签名", "座位号", "姓名", "学号", "班级", "学生签名",};
//对应excel中的行和列，下表从0开始{"开始行,结束行,开始列,结束列"}
String[] headnum0 = new String[]{"2,2,1,5", "2,2,6,8", "2,2,9,10"};
//需要显示在excel中的参数对应的值，因为是用map存的，放的都是对应的key
String[] colName = new String[]{"seatNumberOne", "NameOne", "stuCodeOne",
"classOne", "studentSignatureOne", "seatNumberTwo", "NameTwo", "stuCodeTwo", "classTwo", "studentSignatureTwo"};
//utils类需要用到的参数(调用到工具类)
MutliStyleExcelUtil.reportMergeXls(request, response,newInfomation, head0,
headnum0, head1, colName);
} catch (Exception e) {
e.printStackTrace();
}
}
工具类
package com.tfjybj.itoo.exam.provider.until;
import com.tfjybj.itoo.exam.model.ExamExamRoomListModel;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.util.CellRangeAddress;
import sun.misc.BASE64Encoder;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
@Slf4j
public class MutliStyleExcelUtil {
/**
* 多行表头
* dataList：导出的数据；sheetName：表头名称； head0：表头第一行列名；headnum0：第一行合并单元格的参数
* head1：表头第二行列名；headnum1：第二行合并单元格的参数；detail：导出的表体字段 List> dataList,
*/
public static void reportMergeXls(HttpServletRequest request,
HttpServletResponse response,
List newInfomation, String[] head0, String[] headnum0,
String[] head1, String[] detail)
throws Exception {
int k = 0;
HSSFWorkbook workbook = new HSSFWorkbook();
// 根据数据结构定义的循环,因为查出的数据结构是嵌套的结构
for (ExamExamRoomListModel examExamRoomListModel : newInfomation) {
// 构造导出数据
List> dataListLeft = new ArrayList>();
List> dataListRight = new ArrayList>();
int stuSum = examExamRoomListModel.getChildList().size();
// 行数计数器
int rowIndex = 0;
// 定义一个索引,用来计数学生个数
for (; rowIndex < examExamRoomListModel.getChildList().size(); rowIndex++) {
Map tmpMap = new HashMap();
int j = rowIndex % 100;
if (j < 50) {
// 如果超过第一张的容量则开始第二页
if (j == 0 && (dataListRight.size() + dataListLeft.size()) % 100 == 0 && (dataListRight.size() + dataListLeft.size()) > 0) {
k++;
examExamRoomListModel.setExamRoomName(examExamRoomListModel.getExamRoomName() + k);
createSheet(head0, headnum0, head1, detail, workbook, examExamRoomListModel, dataListLeft, dataListRight, stuSum);
// 清空map,第二页从新考试存储
dataListLeft = new ArrayList>();
dataListRight = new ArrayList>();
}
// 左半部分表格赋值
tmpMap.put("seatNumberOne", "");
tmpMap.put("NameOne", examExamRoomListModel.getChildList().get(rowIndex).getExamineeName());
tmpMap.put("stuCodeOne", examExamRoomListModel.getChildList().get(rowIndex).getExamineeCode());
tmpMap.put("classOne", examExamRoomListModel.getChildList().get(rowIndex).getExamineeClass());
tmpMap.put("studentSignatureOne", "");
dataListLeft.add(tmpMap);
} else if (j >= 50 && j < 100) {
// 右半部分赋值
// 座位号
tmpMap.put("seatNumberTwo", "");
tmpMap.put("NameTwo", examExamRoomListModel.getChildList().get(rowIndex).getExamineeName());
tmpMap.put("stuCodeTwo", examExamRoomListModel.getChildList().get(rowIndex).getExamineeCode());
tmpMap.put("classTwo", examExamRoomListModel.getChildList().get(rowIndex).getExamineeClass());
// 学生签字
tmpMap.put("studentSignatureTwo", "");
dataListRight.add(tmpMap);
}
}
// 第一页没有占满（小于100条）
if (dataListLeft.size() > 0 || dataListRight.size() > 0) {
k++;
examExamRoomListModel.setExamRoomName(examExamRoomListModel.getExamRoomName() + k);
createSheet(head0, headnum0, head1, detail, workbook, examExamRoomListModel, dataListLeft, dataListRight, stuSum);
}
}
// 导出Excel表格
String namenee = "考生签到表";
String fileName = new String(namenee.getBytes("utf-8"),"ISO-8859-1");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
workbook.write(baos);
response.setContentType("application/x-download;charset=utf-8");
response.addHeader("Content-Disposition", "attachment;filename="
+ fileName + ".xls");
OutputStream os = response.getOutputStream();
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
byte[] b = new byte[1024];
while ((bais.read(b)) > 0) {
os.write(b);
}
bais.close();
os.flush();
os.close();
}
// 创建sheet
private static void createSheet(String[] head0, String[] headnum0, String[] head1, String[] detail, HSSFWorkbook workbook,
ExamExamRoomListModel examExamRoomListModel, List> dataListLeft, List> dataListRight, Integer stuSum) {
HSSFSheet sheet = workbook.createSheet(examExamRoomListModel.getExamRoomName());// 创建一个表
// 表头标题样式
HSSFFont headfont = workbook.createFont();
headfont.setFontName("宋体");
headfont.setFontHeightInPoints((short) 22);// 字体大小
HSSFCellStyle headstyle = workbook.createCellStyle();
headstyle.setFont(headfont);
headstyle.setAlignment(HorizontalAlignment.CENTER);// 左右居中
headstyle.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中
headstyle.setLocked(true);
// 表头时间样式
HSSFFont datefont = workbook.createFont();
datefont.setFontName("宋体");
datefont.setFontHeightInPoints((short) 9);// 字体大小
HSSFCellStyle datestyle = workbook.createCellStyle();
datestyle.setFont(datefont);
datestyle.setAlignment(HorizontalAlignment.CENTER);// 左右居中
datestyle.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中
datestyle.setLocked(true);
// 列名样式
HSSFFont font = workbook.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) 9);// 字体大小
HSSFCellStyle style = workbook.createCellStyle();
style.setBorderBottom(BorderStyle.THIN); //下边框
style.setBorderLeft(BorderStyle.THIN);//左边框
style.setBorderTop(BorderStyle.THIN);//上边框
style.setBorderRight(BorderStyle.THIN);//右边框
style.setFont(font);
style.setAlignment(HorizontalAlignment.CENTER);// 左右居中
style.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中
style.setLocked(true);
// 普通单元格样式（中文）
HSSFFont font2 = workbook.createFont();
font2.setFontName("宋体");
font2.setFontHeightInPoints((short) 9);
HSSFCellStyle style2 = workbook.createCellStyle();
style2.setBorderBottom(BorderStyle.THIN); //下边框
style2.setBorderLeft(BorderStyle.THIN);//左边框
style2.setBorderTop(BorderStyle.THIN);//上边框
style2.setBorderRight(BorderStyle.THIN);//右边框
style2.setFont(font2);
style2.setAlignment(HorizontalAlignment.CENTER);// 左右居中
style2.setWrapText(true); // 换行
style2.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中
// 设置列宽 （第几列，宽度）
sheet.setColumnWidth(1, 1300);
sheet.setColumnWidth(2, 2300);
sheet.setColumnWidth(3, 2800);
sheet.setColumnWidth(4, 3900);
sheet.setColumnWidth(5, 1800);
sheet.setColumnWidth(6, 1300);
sheet.setColumnWidth(7, 2300);
sheet.setColumnWidth(8, 2800);
sheet.setColumnWidth(9, 3900);
sheet.setColumnWidth(10, 1800);
sheet.setDefaultRowHeight((short) 360);//设置行高
// 第一行表头标题
sheet.addMergedRegion(new CellRangeAddress(0, 0, 1, head0.length));
HSSFRow row = sheet.createRow(0);
row.setHeight((short) 0x349);
HSSFCell cell = row.createCell(1);
cell.setCellStyle(headstyle);
CellUtil.setCellValue(cell, "**学院考场情况登记表");
// 第二行时间
sheet.addMergedRegion(new CellRangeAddress(1, 1, 1, head0.length));
HSSFRow row1 = sheet.createRow(1);
row.setHeight((short) 0x349);
HSSFCell cell1 = row1.createCell(1);
cell1.setCellStyle(datestyle);
CellUtil.setCellValue(cell1, examExamRoomListModel.getExamName());
// 第三行表头列名
row = sheet.createRow(2);
String variable = "";
for (int i = 0; i < 10; i++) {
/**
* 0-4 :考试时间
* 5-7 :地点
* 8-9: 考场人数
*/
if (i == 0 || i == 1 || i == 2 || i == 3 || i == 4) {
variable = ":" + dataToWeek(examExamRoomListModel.getExamDate().trim()) + "(" + examExamRoomListModel.getExamDate() + ")" + "(" + examExamRoomListModel.getExamTimeSlot() + ")";
} else if (i == 5 || i == 6 || i == 7) {
variable = ":" + examExamRoomListModel.getExamRoomName();
} else if (i == 8 || i == 9) {
variable = ":" + stuSum.toString();
}
cell = row.createCell(i + 1);
cell.setCellValue(head0[i] + variable);
// cell.setCellValue(head0[i]);
cell.setCellStyle(style);
}
//动态合并单元格
for (int i = 0; i < headnum0.length; i++) {
String[] temp = headnum0[i].split(",");
Integer startrow = Integer.parseInt(temp[0]);
Integer overrow = Integer.parseInt(temp[1]);
Integer startcol = Integer.parseInt(temp[2]);
Integer overcol = Integer.parseInt(temp[3]);
sheet.addMergedRegion(new CellRangeAddress(startrow, overrow,
startcol, overcol));
}
//设置合并单元格的参数并初始化带边框的表头（这样做可以避免因为合并单元格后有的单元格的边框显示不出来）
//因为下标从0开始，所以这里表示的是excel中的第四行
row = sheet.createRow(3);
//设置excel中第四行的列边框
cell.setCellStyle(style);
for (int j = 0; j < head1.length; j++) {
cell = row.createCell(j+1);
//给excel中第四行的列赋值
cell.setCellValue(head1[j]);
//设置excel中第四行的列的边框
cell.setCellStyle(style);
}
// 设置列值-内容
for (int i = 0; i < dataListLeft.size(); i++) {
//标题、时间、表头字段共占了4行，所以在填充数据的时候要加4，也就是数据要从第5行开始填充
row = sheet.createRow(i + 4);
for (int j = 0; j < detail.length / 2; j++) {
Map tempmap = (HashMap) dataListLeft.get(i);
Object data = tempmap.get(detail[j]);
cell = row.createCell(j + 1);
cell.setCellStyle(style2);
cell.setCellType(CellType.STRING);
CellUtil.setCellValue(cell, data);
}
}
for (int i = 0; i < dataListRight.size(); i++) {
//(get到上面createRow的行,直接填充)标题、时间、表头字段共占了4行，所以在填充数据的时候要加4，也就是数据要从第5行开始填充
row = sheet.getRow(i + 4);
for (int j = detail.length / 2; j < detail.length; j++) {
Map tempmap = (HashMap) dataListRight.get(i);
Object data = tempmap.get(detail[j]);
cell = row.createCell(j + 1);
cell.setCellStyle(style2);
cell.setCellType(CellType.STRING);
CellUtil.setCellValue(cell, data);
}
}
sheet.addMergedRegion(new CellRangeAddress(54, 54, 0, head0.length + 1));
/**
* 表未主
*/
HSSFCellStyle tablePattern = workbook.createCellStyle();
HSSFFont f = workbook.createFont();
f.setFontName("宋体");
f.setFontHeightInPoints((short) 9);
tablePattern.setFont(f);
tablePattern.setBorderLeft(BorderStyle.THIN);// 左右居中
tablePattern.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中
tablePattern.setLocked(true);
sheet.addMergedRegion(new CellRangeAddress(55, 55, 1, head0.length));
HSSFRow explain = sheet.createRow(55);
row.setHeight((short) 0x349);
HSSFCell explainCell1 = explain.createCell(1);
explainCell1.setCellStyle(tablePattern);
CellUtil.setCellValue(explainCell1, "考场情况说明:");
sheet.addMergedRegion(new CellRangeAddress(56, 56, 1, head0.length));
HSSFRow jishu = sheet.createRow(56);
row.setHeight((short) 0x349);
HSSFCell persion = jishu.createCell(1);
persion.setCellStyle(tablePattern);
CellUtil.setCellValue(persion, "技术人员:");
/**
* 监考老师
*/
sheet.addMergedRegion(new CellRangeAddress(57, 57, 1, 2));
HSSFRow ccc = sheet.createRow(57);
row.setHeight((short) 0x349);
HSSFCell teaOne = ccc.createCell(1);
teaOne.setCellStyle(tablePattern);
CellUtil.setCellValue(teaOne, "主监考老师:");
row.setHeight((short) 0x349);
HSSFCell teaTwo = ccc.createCell(4);
teaTwo.setCellStyle(tablePattern);
CellUtil.setCellValue(teaTwo, "副监考老师:");
}
/**
* 给定日期转换相应的星期
*
* @param datetime
* @return
* @author Ryan
* @since 2019-1-8 09:46:00
*/
private static String dataToWeek(String datetime) {
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd");
String[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
Calendar cal = Calendar.getInstance(); // 获得一个日历
try {
cal.setTime(f.parse(datetime));
} catch (ParseException e) {
e.printStackTrace();
log.warn(e + "");
}
int w = cal.get(Calendar.DAY_OF_WEEK) - 1; // 指示一个星期中的某天。
if (w < 0)
w = 0;
return weekDays[w];
}
实体类型定义
// 父model-->ExamExamRoomListModel
package com.tfjybj.itoo.exam.model;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import lombok.experimental.Accessors;
import java.util.ArrayList;
import java.util.List;
@ApiModel(value = "ExamExamRoomListModel:表格信息记录表")
@Data
@NoArgsConstructor
@Accessors(chain = true)
@ToString(callSuper = true)
public class ExamExamRoomListModel {
/**
* 考试id
*/
@ApiModelProperty(value = "考试id")
private String examId;
/**
* 考试名称
*/
@ApiModelProperty(value = "考试名称")
private String examName;
/**
* 考试时间段 例如:(19:20-20:20)
*/
@ApiModelProperty(value = "考试时间段")
private String examTimeSlot;
/**
* 考试日期
*/
@ApiModelProperty(value = "考试日期", required = true)
private String examDate;
/**
* 考场id
*/
@ApiModelProperty(value = "考场id")
private String examRoomId;
/**
* 考场名称
*/
@ApiModelProperty(value = "考场名称")
private String examRoomName;
/**
* 主监考老师id
*/
@ApiModelProperty(value = "主监考老师id")
private String invigilatorMainId;
/**
* 主监考老师名称
*/
@ApiModelProperty(value = "主监考老师名称")
private String invigilatorMainName;
/**
* 副监考老师id
*/
@ApiModelProperty(value = "副监考老师id")
private String invigilatorSubId;
/**
* 副监考老师名称
*/
@ApiModelProperty(value = "副监考老师名称")
private String invigilatorSubName;
/**
* 周几
*/
@ApiModelProperty(value = "周几")
private String week;
/**
* 考场下面的考生集合
*/
@ApiModelProperty(value = "本考场下所有的考生")
List childList = new ArrayList<>();
}
// 子model--->ExamExamineeListModel
package com.tfjybj.itoo.exam.model;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import lombok.experimental.Accessors;
@ApiModel(value = "ExamExamineeListModel:考生信息记录表")
@Data
@NoArgsConstructor
@Accessors(chain = true)
@ToString(callSuper = true)
public class ExamExamineeListModel {
/**
* 考生id
*/
@ApiModelProperty(value = "考生id")
private String examineeId;
/**
* 考生名称
*/
@ApiModelProperty(value = "考生名称")
private String examineeName;
/**
* 考生学号
*/
@ApiModelProperty(value = "考生学号")
private String examineeCode;
/**
* 考生班级
*/
@ApiModelProperty(value = "考生班级")
private String examineeClass;
}
