easypoi 导出文本图片Excel
一.参考官网文档：easypoi文档
二.导入easypoi的maven依赖
cn.afterturn
easypoi-base
3.2.0
cn.afterturn
easypoi-web
3.2.0
cn.afterturn
easypoi-annotation
3.2.0
三.生成Excel准备工作
3.1 对象实体添加注解
public class TBreakRule implements Serializable {
/**
* id
*/
@Excel(name = "编号",orderNum = "1")
private Integer id;
@Excel(name = "违停编号",width = 25,orderNum = "2")
private String breakCode;
/**
* 车牌号
*/
@Excel(name = "车牌号",orderNum = "3")
private String plateNumber;
/**
* 地址
*/
@Excel(name = "地址",width = 60,orderNum = "4")
private String address;
/**
* 图片
*/
private String picture;
@Excel(name = "车辆正面照片",type = 2,width = 50,height = 60,orderNum = "5")
private String picture1;
@Excel(name = "车辆左侧照片",type = 2,width = 50,height = 60,orderNum = "5")
private String picture2;
@Excel(name = "车辆右侧照片",type = 2,width = 50,height = 60,orderNum = "5")
private String picture3;
/**
* 违章信息
*/
@Excel(name = "违章信息",orderNum = "6")
private String breakInfo;
/**
* 车牌颜色
*/
@Excel(name = "车牌颜色",orderNum = "7")
private String plateColor;
/**
* 01：大型车。02：小型车 07：2，3轮摩托车，08：轻便摩托车。13：农用运输车
*/
@Excel(name = "车辆类型",replace = {"大型车_01","小型车_02","摩托车_07","轻便摩托车_08","农用运输车_13"},orderNum = "8")
private String carType;
/**
* 车颜色
*/
@Excel(name = "车身颜色",suffix = "色",orderNum = "9" )
private String carColor;
/**
* 创建时间
*/
@Excel(name = "创建时间", format = "yyyy-MM-dd HH:mm:ss" ,width = 20,orderNum = "9")
private Date createTime;
/**
* 创建人
*/
@Excel(name = "创建人",orderNum = "20")
private String createBy;
private Date updateTime;
private String updateBy;
private String delFlag;
/**
* 10：待审核，20：警告，30：待处理，40：待缴费，50：已处理，60：已推送，70：已作废
*/
@Excel(name = "状态",replace = {"待审核_10","警告_20","待处理_30","待缴费_40","已处理_50","已推送_60","已作废_70","已推送（旧数据）_4"},orderNum = "11")
private String status;
/**
* 0.未推送 1.已推送
*/
@Excel(name = "推送状态",replace = {"未推送_0","已推送_1"},orderNum = "12")
private String pushStatus;
/**
* 用户id
*/
private Integer userId;
@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@JsonFormat(timezone="GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
private Date startDate;
@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@JsonFormat(timezone="GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
private Date endDate;
3.2 批量下载阿里云OSS图片
/**
* 传入要下载的图片的url列表，将url所对应的图片下载到服务器本地
* @param fileName 服务器存储路径
* @param urlList 阿里云图片地址集合
* @return 返回服务器下载图片的路径集合
*/
private List downloadPicture(String fileName,List urlList) {
File file=new File(fileName);
// 不存在则创建文件夹
if (!file.exists()){
file.mkdir();
}
long imageNumber = System.currentTimeMillis();
ListimageList=new ArrayList<>();
URL url = null;
for (String urlString : urlList) {
try {
url = new URL(urlString);
DataInputStream dataInputStream = new DataInputStream(url.openStream());
Random random=new Random();
int rd=random.nextInt(9999);
String imageName = imageNumber+""+rd + ".jpg";
FileOutputStream fileOutputStream = new FileOutputStream(new File(fileName+"/"+imageName));
byte[] buffer = new byte[1024];
int length;
while ((length = dataInputStream.read(buffer)) > 0) {
fileOutputStream.write(buffer, 0, length);
}
dataInputStream.close();
fileOutputStream.close();
imageList.add(fileName+"/"+imageName);
imageNumber++;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return imageList;
}
四.导出Excel
/**
* 导出带图片的Excel
* @param fileName
* @param list
* @param response
*/
private void exportBreakRuleExcel(String fileName,Listlist, HttpServletResponse response){
String now=DateUtils.format(new Date(),"yyyyMMddHHmmss");
for (TBreakRule tBreakRule:list){
// 将三张图片url分割，进行下载
String[] pictures=tBreakRule.getPicture().split(",");
ListimageList=new ArrayList<>();
for (int i=0;i filePaths=downloadPicture(fileName,imageList);
for (int j=0;j EasyPoiUtil工具类代码:
public class EasyPoiUtil {
/**
* 功能描述：复杂导出Excel，包括文件名以及表名。创建表头
*
* @param list 导出的实体类
* @param title 表头名称
* @param sheetName sheet表名
* @param pojoClass 映射的实体类
* @param isCreateHeader 是否创建表头
* @param fileName
* @param response
* @return
*/
public static void exportExcel(List list, String title, String sheetName, Class pojoClass, String fileName, boolean isCreateHeader, HttpServletResponse response) {
ExportParams exportParams = new ExportParams(title, sheetName);
exportParams.setCreateHeadRows(isCreateHeader);
defaultExport(list, pojoClass, fileName, response, exportParams);
}
/**
* 功能描述：复杂导出Excel，包括文件名以及表名,不创建表头
*
* @param list 导出的实体类
* @param title 表头名称
* @param sheetName sheet表名
* @param pojoClass 映射的实体类
* @param fileName
* @param response
* @return
*/
public static void exportExcel(List list, String title, String sheetName, Class pojoClass, String fileName, HttpServletResponse response) {
defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName));
}
/**
* 功能描述：Map 集合导出
*
* @param list 实体集合
* @param fileName 导出的文件名称
* @param response
* @return
*/
public static void exportExcel(List> list, String fileName, HttpServletResponse response) {
defaultExport(list, fileName, response);
}
/**
* 功能描述：默认导出方法
*
* @param list 导出的实体集合
* @param fileName 导出的文件名
* @param pojoClass pojo实体
* @param exportParams ExportParams封装实体
* @param response
* @return
*/
private static void defaultExport(List list, Class pojoClass, String fileName, HttpServletResponse response, ExportParams exportParams) {
Workbook workbook = ExcelExportUtil.exportExcel(exportParams, pojoClass, list);
if (workbook != null) {
downLoadExcel(fileName, response, workbook);
}
}
/**
* 功能描述：Excel导出
*
* @param fileName 文件名称
* @param response
* @param workbook Excel对象
* @return
*/
private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) {
try {
response.setCharacterEncoding("UTF-8");
response.setHeader("content-Type", "application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
workbook.write(response.getOutputStream());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* 功能描述：默认导出方法
*
* @param list 导出的实体集合
* @param fileName 导出的文件名
* @param response
* @return
*/
private static void defaultExport(List> list, String fileName, HttpServletResponse response) {
Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);
if (workbook != null) ;
downLoadExcel(fileName, response, workbook);
}
/**
* 功能描述：根据文件路径来导入Excel
*
* @param filePath 文件路径
* @param titleRows 表标题的行数
* @param headerRows 表头行数
* @param pojoClass Excel实体类
* @return
*/
public static List importExcel(String filePath, Integer titleRows, Integer headerRows, Class pojoClass) {
//判断文件是否存在
if (StringUtils.isBlank(filePath)) {
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
List list = null;
try {
list = ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);
} catch (NoSuchElementException e) {
throw new RuntimeException("模板不能为空");
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* 功能描述：根据接收的Excel文件来导入Excel,并封装成实体类
*
* @param file 上传的文件
* @param titleRows 表标题的行数
* @param headerRows 表头行数
* @param pojoClass Excel实体类
* @return
*/
public static List importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class pojoClass) {
if (file == null) {
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
List list = null;
try {
list = ExcelImportUtil.importExcel(file.getInputStream(), pojoClass, params);
} catch (NoSuchElementException e) {
throw new RuntimeException("excel文件不能为空");
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
return list;
}
}
导出后效果图：