POI & EasyExcel
POI
Apache POI是Apache软件基金会的开源项目，POI提供API给Java程序对Microsoft Office格式档案读和写的功能。
.NET的开发人员则可以利用NPOI (POI for .NET) 来存取 Microsoft Office文档的功能。
EasyExcel
EasyExcel是一个基于Java的简单、省内存的读写Excel的开源项目。
在尽可能节约内存的情况下支持读写百M的Excel。
EasyExcel是阿里的开源项目，使用起来简单方便快捷舒适且优雅，但是功能有限。
使用POI绘制表格
在第一次开发项目中遇到需要批量导出Excel，此时有两个选择：导入Excel填数据和手绘Excel。第一种方法用EasyExcel就可以很方便实现，但是第二种方法只有用POI
（主要是EasyExcel真不会o(╥﹏╥)o）
模板
Excel模板格式化类
package cn.resico.invoice.excelFromat;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.ClientAnchor;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.util.CellRangeAddress;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
class Excel {
//测试DTO
CreatDTO creatDTO = new CreatDTO();
//开始列
private final int startColumn = 1;
//开始行
private final int startRow = 0;
//固定行高 分别表示标题行高，正文行高，“注~”栏行高
private final int titleRowHeight = 885, rowHeight = 815, rowHeightMessage = 270, rowHeightIdCard = 450;
//固定列宽
private final double[] colWidths = {5.63, 21.25, 16.38, 10.25, 9.13, 16.13, 11.5, 27.13};
//字体设置
private final int textFontSize = 14, smallTitleFontSize = 14, bigTitleFontSIze = 18;
//间隔符号设置
private final String interval = " ";
public HSSFWorkbook workbook;
public HSSFSheet sheet;
/**
* 设置列宽
*
* @param
* @return
*/
private void setColumnWidth() {
//比例 本来应该是256但不知道为何存在误差，此处根据误差比例进行调整
final int scale = 296;
for (int i = 0; i < colWidths.length; i++) {
sheet.setColumnWidth(i, (int) (scale * colWidths[i]));
}
}
/**
* 对单元格进行合并同时进行边框处理（避免合并单元格后部分单元格没有边框）
*
* @param
* @return
*/
private void setMergedBorder(HSSFCellStyle style, HSSFRow rows, int col1, int col2) {
for (int i = col1 + 1; i <= col2; i++) {
HSSFCell hssfCell = rows.createCell(i);
hssfCell.setCellStyle(style);
hssfCell.setCellValue("");
}
}
/**
* 创建行元素.
*
* @param style 样式
* @param height 行高
* @param value 行显示的内容
* @param row1 起始行
* @param row2 结束行
* @param col1 起始列
* @param col2 结束列
*/
private void createRow(HSSFCellStyle style, int height, String value, int row1, int row2, int col1, int col2) {
sheet.addMergedRegion(new CellRangeAddress(row1, row2, col1, col2)); //设置从第row1行合并到第row2行，第col1列合并到col2列
HSSFRow rows = sheet.createRow(row1);//设置第几行
setMergedBorder(style, rows, col1, col2); //进行合并后边框处理
rows.setHeight((short) height); //设置行高
HSSFCell cell = rows.createCell(col1); //设置内容开始的列
cell.setCellStyle(style); //设置样式
cell.setCellValue(value); //设置该行的值
}
/**
* 创建样式
*
* @param fontSize 字体大小
* @param align 水平位置 左右居中2 居右3 默认居左 垂直均为居中
* @param bold 是否加粗
* @return
*/
private HSSFCellStyle getStyle(int fontSize, int align, boolean bold, boolean border) {
HSSFFont font = workbook.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) fontSize);// 字体大小
font.setBold(bold);
HSSFCellStyle style = workbook.createCellStyle();
style.setFont(font); //设置字体
style.setWrapText(true);
switch (align) { // 居左1 居中2 居右3 默认居左
// case 1:style.setAlignment(HorizontalAlignment.LEFT);break;
case 2:
style.setAlignment(HorizontalAlignment.CENTER);
break;
case 3:
style.setAlignment(HorizontalAlignment.RIGHT);
break;
}
style.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中1
if (border) {
style.setBorderRight(BorderStyle.THIN);
style.setBorderLeft(BorderStyle.THIN);
style.setBorderBottom(BorderStyle.THIN);
style.setBorderTop(BorderStyle.THIN);
style.setLocked(true);
}
return style;
}
/**
* 用设置表格格式生成固定表格，思路是一行一行进行建表
* 注意：
* 对于同一行中多个信息：&表示信息填写在同一格 /表示信息填写在不同格
*
* @param
* @param
*/
public void createFormat() throws IOException {
//设置列宽
setColumnWidth();
//表格大标题常用格式
HSSFCellStyle styleBigTitleCommon = getStyle(bigTitleFontSIze, 2, true, false);
//表格小标题常用格式
HSSFCellStyle styleSmallTitleCommon = getStyle(smallTitleFontSize, 2, true, true);
//表格固定方框内常用格式
HSSFCellStyle styleFixedCommon = getStyle(textFontSize, 2, true, true);
//表格填写方框内常用格式
HSSFCellStyle styleWriteCommon = getStyle(textFontSize, 2, true, true);
//当前行数（每次完成一行构建就++）
int currentRow = startRow;
/**
* 第一行：标题
*/
createRow(styleBigTitleCommon, titleRowHeight, "Excel导出测试表", currentRow, currentRow, startColumn, startColumn + 6);
currentRow++;
/**
* 第二行：自然人信息
*/
createRow(styleSmallTitleCommon, rowHeight, "自然人信息", currentRow, currentRow, startColumn, startColumn + 6);
currentRow++;
/**
* 第三行：名字/联系电话
*/
HSSFRow row3 = sheet.createRow(currentRow);
row3.setHeight((short) rowHeight);
//姓名
HSSFCell cellName = row3.createCell(startColumn);
cellName.setCellStyle(styleFixedCommon);
cellName.setCellValue("姓名");
//姓名填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 3));
setMergedBorder(styleWriteCommon, row3, startColumn + 1, startColumn + 3);
HSSFCell cellOfName = row3.createCell(startColumn + 1);
cellOfName.setCellStyle(styleWriteCommon);
cellOfName.setCellValue(creatDTO.getName());
//联系电话
row3.setHeight((short) rowHeight);
HSSFCell cellMobileOFDrawer = row3.createCell(startColumn + 4);
cellMobileOFDrawer.setCellStyle(styleFixedCommon);
cellMobileOFDrawer.setCellValue("联系电话");
//联系电话填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 5, startColumn + 6));
setMergedBorder(styleWriteCommon, row3, startColumn + 5, startColumn + 6);
HSSFCell cellOfMobileOfDrawer = row3.createCell(startColumn + 5);
cellOfMobileOfDrawer.setCellStyle(styleWriteCommon);
cellOfMobileOfDrawer.setCellValue(creatDTO.getMobileOfDrawer());
currentRow++;
/**
* 第四行：身份证号
*/
HSSFRow row4 = sheet.createRow(3);
row4.setHeight((short) rowHeight);
//身份证号
HSSFCell cellIdNo = row4.createCell(startColumn);
cellIdNo.setCellStyle(styleFixedCommon);
cellIdNo.setCellValue("身份证号码");
//身份证号填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row4, startColumn + 1, startColumn + 6);
HSSFCell cellOfIdNo = row4.createCell(startColumn + 1);
cellOfIdNo.setCellStyle(styleWriteCommon);
cellOfIdNo.setCellValue(creatDTO.getIdNo());
currentRow++;
/**
* 第五行：购买方信息
*/
createRow(styleSmallTitleCommon, rowHeight, "购买方信息", currentRow, currentRow, startColumn, startColumn + 6);
currentRow++;
/**
* 第六行：公司名称/纳税人识别号
*/
HSSFRow row6 = sheet.createRow(currentRow);
row6.setHeight((short) rowHeight);
//公司名称
HSSFCell cellCompanyName = row6.createCell(startColumn);
cellCompanyName.setCellStyle(styleFixedCommon);
cellCompanyName.setCellValue("公司名称");
//公司名称填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 3));
setMergedBorder(styleWriteCommon, row6, startColumn + 1, startColumn + 3);
HSSFCell cellOfCompanyName = row6.createCell(startColumn + 1);
cellOfCompanyName.setCellStyle(styleWriteCommon);
cellOfCompanyName.setCellValue(creatDTO.getCompanyName());
//纳税人识别号
HSSFCell cellIdentificationNumber = row6.createCell(startColumn + 4);
cellIdentificationNumber.setCellStyle(styleFixedCommon);
cellIdentificationNumber.setCellValue("纳税人识别号");
//纳税人识别号填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 5, startColumn + 6));
setMergedBorder(styleWriteCommon, row6, startColumn + 5, startColumn + 6);
HSSFCell cellOfIdentificationNumber = row6.createCell(startColumn + 5);
cellOfIdentificationNumber.setCellStyle(styleWriteCommon);
cellOfIdentificationNumber.setCellValue(creatDTO.getIdentificationNumber());
currentRow++;
/**
* 第七行：地址&联系电话
*/
HSSFRow row7 = sheet.createRow(currentRow);
row7.setHeight((short) rowHeight);
//地址&联系电话
HSSFCell cellAddressAndMobileOfHead = row7.createCell(startColumn);
cellAddressAndMobileOfHead.setCellStyle(styleFixedCommon);
cellAddressAndMobileOfHead.setCellValue("地址&联系电话");
//地址&联系电话填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row7, startColumn + 1, startColumn + 6);
HSSFCell cellOfAddressAndMobileOfHead = row7.createCell(startColumn + 1);
cellOfAddressAndMobileOfHead.setCellStyle(styleWriteCommon);
cellOfAddressAndMobileOfHead.setCellValue(creatDTO.getAddress() + interval + creatDTO.getMobileOfHead());
currentRow++;
/**
* 第八行：开户行&银行账号
*/
HSSFRow row8 = sheet.createRow(currentRow);
row8.setHeight((short) rowHeight);
//开户行&银行账号
HSSFCell cellBankNameAndBankAccount = row8.createCell(startColumn);
cellBankNameAndBankAccount.setCellStyle(styleFixedCommon);
cellBankNameAndBankAccount.setCellValue("开户行&银行账号");
//开户行&银行账号填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row8, startColumn + 1, startColumn + 6);
HSSFCell cellOfBankNameAndBankAccount = row8.createCell(startColumn + 1);
cellOfBankNameAndBankAccount.setCellStyle(styleWriteCommon);
cellOfBankNameAndBankAccount.setCellValue(creatDTO.getBankName() + interval + creatDTO.getBankAccount());
currentRow++;
/**
* 第九行+第十行 ~ 第N行+第N+1行：开票内容相关
* 注意：
* 此处命名统一以第9/10行为规范。
*/
//开票内容包含几行
for (CreatDTO.OrderItemPO itemPO : creatDTO.getOrderItems()) {
HSSFRow row9 = sheet.createRow(currentRow);
row9.setHeight((short) rowHeight);
//开票内容
HSSFCell cellInvoiceContent = row9.createCell(startColumn);
cellInvoiceContent.setCellStyle(styleFixedCommon);
cellInvoiceContent.setCellValue("开票内容");
//开票内容填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row9, startColumn + 1, startColumn + 6);
HSSFCell cellOfInvoiceContent = row9.createCell(startColumn + 1);
cellOfInvoiceContent.setCellStyle(styleWriteCommon);
cellOfInvoiceContent.setCellValue(itemPO.getRemark());
currentRow++;
HSSFRow row10 = sheet.createRow(currentRow);
row10.setHeight((short) rowHeight);
//规格型号
HSSFCell cellSpecs = row10.createCell(startColumn);
cellSpecs.setCellStyle(styleFixedCommon);
cellSpecs.setCellValue("规格型号：" + itemPO.getSpecs());
//计量单位
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 2));
setMergedBorder(styleWriteCommon, row10, startColumn + 1, startColumn + 2);
HSSFCell cellUnit = row10.createCell(startColumn + 1);
cellUnit.setCellStyle(styleWriteCommon);
cellUnit.setCellValue("计量单位：" + itemPO.getUnit());
//数量
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 3, startColumn + 4));
setMergedBorder(styleWriteCommon, row10, startColumn + 3, startColumn + 4);
HSSFCell cellCount = row10.createCell(startColumn + 3);
cellCount.setCellStyle(styleWriteCommon);
cellCount.setCellValue("数量：" + itemPO.getCount());
//开票金额
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 5, startColumn + 6));
setMergedBorder(styleWriteCommon, row10, startColumn + 5, startColumn + 6);
HSSFCell cellInvoiceAmt = row10.createCell(startColumn + 5);
cellInvoiceAmt.setCellStyle(styleWriteCommon);
cellInvoiceAmt.setCellValue("开票金额：" + itemPO.getInvoiceAmt());
currentRow++;
}
/**
* 第N+2行：收款人/复核人
*/
HSSFRow row11 = sheet.createRow(currentRow);
row11.setHeight((short) rowHeight);
//收款人
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn, startColumn + 3));
setMergedBorder(styleWriteCommon, row11, startColumn, startColumn + 3);
HSSFCell cellPayee = row11.createCell(startColumn);
cellPayee.setCellStyle(styleWriteCommon);
cellPayee.setCellValue("收款人：" + creatDTO.getName());
//复核人
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 4, startColumn + 6));
setMergedBorder(styleWriteCommon, row11, startColumn + 4, startColumn + +6);
HSSFCell cellReviewer = row11.createCell(startColumn + 4);
cellReviewer.setCellStyle(styleWriteCommon);
cellReviewer.setCellValue("复核人：" + creatDTO.getName());
currentRow++;
/**
* 第N+3行：备注栏
*/
HSSFRow row12 = sheet.createRow(currentRow);
row12.setHeight((short) rowHeight);
//备注栏
HSSFCell cellRemarks = row12.createCell(startColumn);
cellRemarks.setCellStyle(styleFixedCommon);
cellRemarks.setCellValue("备注栏");
//备注栏填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row12, startColumn + 1, startColumn + 6);
HSSFCell cellOfRemarks = row12.createCell(startColumn + 1);
cellOfRemarks.setCellStyle(styleWriteCommon);
cellOfRemarks.setCellValue(creatDTO.getRemark());
currentRow++;
/**
* 第N+4行：邮寄信息
*/
createRow(styleSmallTitleCommon, rowHeight, "邮寄信息", currentRow, currentRow, startColumn, startColumn + 6);
currentRow++;
/**
* 第N+5行：收件地址&联系人&电话
*/
HSSFRow row14 = sheet.createRow(currentRow);
row14.setHeight((short) rowHeight);
//收件地址&联系人&电话
HSSFCell cellReceivedAddressContactsMobileOfContacts = row14.createCell(startColumn);
cellReceivedAddressContactsMobileOfContacts.setCellStyle(styleFixedCommon);
cellReceivedAddressContactsMobileOfContacts.setCellValue("收件地址&联系人&电话");
//收件地址&联系人&电话填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row14, startColumn + 1, startColumn + 6);
HSSFCell cellOfReceivedAddressContactsMobileOfContacts = row14.createCell(startColumn + 1);
cellOfReceivedAddressContactsMobileOfContacts.setCellStyle(styleWriteCommon);
cellOfReceivedAddressContactsMobileOfContacts.setCellValue(creatDTO.getReceivedAddress() + interval + creatDTO.getContacts() + interval + creatDTO.getMobileOfContacts());
currentRow++;
/**
* 第N+6行：发件联系人&电话
*/
HSSFRow row15 = sheet.createRow(currentRow);
row15.setHeight((short) rowHeight);
//发件联系人&电话
HSSFCell cellSendContactsMobileSendContacts = row15.createCell(startColumn);
cellSendContactsMobileSendContacts.setCellStyle(styleFixedCommon);
cellSendContactsMobileSendContacts.setCellValue("发件联系人&电话");
//发件联系人&电话填写栏
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn + 1, startColumn + 6));
setMergedBorder(styleWriteCommon, row15, startColumn + 1, startColumn + 6);
HSSFCell cellOfSendContactsMobileSendContacts = row15.createCell(startColumn + 1);
cellOfSendContactsMobileSendContacts.setCellStyle(styleWriteCommon);
cellOfSendContactsMobileSendContacts.setCellValue(creatDTO.getSendContacts() + interval + creatDTO.getMobileSendContacts());
currentRow++;
/**
* 第N+7行：注~
*/
HSSFRow row16 = sheet.createRow(currentRow);
row16.setHeight((short) rowHeightMessage);
HSSFCellStyle styleMessage = getStyle(11, 1, true, false);
sheet.addMergedRegion(new CellRangeAddress(currentRow, currentRow, startColumn, startColumn + 3));
HSSFCell cellMessage = row16.createCell(startColumn);
cellMessage.setCellStyle(styleMessage);
cellMessage.setCellValue("注：以上除备注栏和发件联系人外均为必填项");
currentRow++;
/**
* 隔一行
*/
sheet.createRow(currentRow).setHeight((short) rowHeightMessage);
currentRow++;
/**
* 身份证图片栏
*/
for (int i = 0; i < 10; i++) {
sheet.createRow(currentRow).setHeight((short) 450);
currentRow++;
}
sheet.addMergedRegion(new CellRangeAddress(currentRow - 10, currentRow - 1, startColumn, startColumn + 3));
sheet.addMergedRegion(new CellRangeAddress(currentRow - 10, currentRow - 1, startColumn + 4, startColumn + 6));
ByteArrayOutputStream byteArrayOutFront = new ByteArrayOutputStream();
BufferedImage bufferImgFront = ImageIO.read(new File("C:\Users\Yuri\Desktop\front.png"));
ImageIO.write(bufferImgFront, "jpg", byteArrayOutFront);
ByteArrayOutputStream byteArrayOutBack = new ByteArrayOutputStream();
BufferedImage bufferImgBack = ImageIO.read(new File("C:\Users\Yuri\Desktop\back.jpg"));
ImageIO.write(bufferImgBack, "jpg", byteArrayOutBack);
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
//anchor主要用于设置图片的属性
HSSFClientAnchor anchorFront = new HSSFClientAnchor(0, 0, 1000, 255, (short) startColumn, currentRow - 10, (short) (startColumn + 3), currentRow - 1);
HSSFClientAnchor anchorBack = new HSSFClientAnchor(0, 0, 1000, 255, (short) (startColumn + 4), currentRow - 10, (short) (startColumn + 6), currentRow - 1);
anchorFront.setAnchorType(ClientAnchor.AnchorType.byId(3));
anchorBack.setAnchorType(ClientAnchor.AnchorType.byId(3));
//插入图片
patriarch.createPicture(anchorFront, workbook.addPicture(byteArrayOutFront.toByteArray(), HSSFWorkbook.PICTURE_TYPE_EMF));
patriarch.createPicture(anchorBack, workbook.addPicture(byteArrayOutBack.toByteArray(), HSSFWorkbook.PICTURE_TYPE_EMF));
}
public static void main(String[] args) throws IOException {
Excel excel = new Excel();
excel.workbook = new HSSFWorkbook();
excel.sheet = excel.workbook.createSheet("Akira");
excel.createFormat();
File outPutFile = new File("C:\Users\Yuri\Desktop\模板测试.xls");
outPutFile.createNewFile();
FileOutputStream out = new FileOutputStream(outPutFile);
excel.workbook.write(out);
out.flush();
out.close();
}
}
注入数据DTO
package cn.resico.invoice.excelFromat;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
/**
* @Author Yuri
* @Date 2020/12/14 14:03
* @Version 1.0
* @Description:
*/
@Data
public class CreatDTO {
@ApiModelProperty(value = "开票人姓名")
private String name;
@ApiModelProperty(value = "开票人电话")
private String mobileOfDrawer;
@ApiModelProperty(value = "开票人身份证")
private String idNo;
@ApiModelProperty(value = "收货地址")
private String address;
@ApiModelProperty(value = "公司名称")
private String companyName;
@ApiModelProperty(value = "纳税人识别号")
private String identificationNumber;
@ApiModelProperty(value = "公司电话")
private String mobileOfHead;
@ApiModelProperty(value = "开户行名称")
private String bankName;
@ApiModelProperty(value = "公司账户")
private String BankAccount;
@ApiModelProperty(value = "开票内容")
private List<OrderItemPO> OrderItems;
@ApiModelProperty(value = "联系人")
private String contacts;
@ApiModelProperty(value = "联系人电话")
private String mobileOfContacts;
@ApiModelProperty(value = "发件人")
private String sendContacts;
@ApiModelProperty(value = "发件人电话")
private String mobileSendContacts;
@ApiModelProperty(value = "项目名称")
private String projectName;
@ApiModelProperty(value = "项目地址")
private String projectAddress;
@ApiModelProperty(value = "收货地址")
private String receivedAddress;
@ApiModelProperty(value = "备注")
private String remark;
public CreatDTO() {
setName("萧瑟");
setMobileOfDrawer("1529817555");
setIdNo("51033219990505152436");
setCompanyName("殉");
setIdentificationNumber("12345678910");
setAddress("亚马逊拉斯特拉山脉");
setMobileOfHead("0087541");
setBankName("秋明财团");
setBankAccount("01511544");
setOrderItems(new ArrayList<>());
setProjectName("天蝎计划");
setProjectAddress("南天球的黄道带");
setReceivedAddress("银河系地对月发射中心");
setContacts("天蝎座");
setMobileOfContacts("0706");
setSendContacts("巨蟹座");
setMobileSendContacts("9913");
setRemark("没有什么好备注就随便写写吧");
OrderItemPO itemPO = new OrderItemPO();
itemPO.setRemark("黄道天蝎");
itemPO.setSpecs("SR");
itemPO.setUnit("平方度");
itemPO.setCount(BigDecimal.valueOf(9000));
itemPO.setInvoiceAmt(BigDecimal.valueOf(6554848));
getOrderItems().add(itemPO);
OrderItemPO itemPO2 = new OrderItemPO();
itemPO2.setRemark("三体");
itemPO2.setSpecs("SSS");
itemPO2.setUnit("光年");
itemPO2.setCount(BigDecimal.valueOf(4));
itemPO2.setInvoiceAmt(BigDecimal.valueOf(984545214));
getOrderItems().add(itemPO2);
}
@Data
public static class OrderItemPO {
@ApiModelProperty(value = "交易号")
private Long orderId;
@ApiModelProperty(value = "开票内容")
private String remark;
@ApiModelProperty(value = "规格")
private String specs;
@ApiModelProperty(value = "计量单位")
private String unit;
@ApiModelProperty(value = "数量")
private BigDecimal count;
@ApiModelProperty(value = "单价")
private BigDecimal unitPrice;
@ApiModelProperty(value = "开票金额")
private BigDecimal invoiceAmt;
}
}
以上是第一次做模板的代码，所以很多地方写的都是小心翼翼的，但熟悉后其实很多一样格式的行可以用循环就生成了。
...
以上代码是没有任何技术可言的，但是对于未接触过这方面的人来说，在初次接到这种需求需要知道什么技术可以实现。