本节将分享给大家,实现Excel表格的导出和导入,简单好用的插件。
package com.sf.vsolution.hb.sfce.util.excel;
import com.alibaba.excel.EasyExcelFactory;
import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.alibaba.excel.metadata.BaseRowModel;
import com.alibaba.excel.metadata.Sheet;
import com.alibaba.excel.support.ExcelTypeEnum;
import com.alibaba.excel.util.CollectionUtils;
import lombok.Data;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
/**
* @description: 阿里巴巴EasyExcel工具
* @author : zhucj
* @date: 2019-11-05 13:22
*/
public class EasyExcelUtils {
private static final Logger logger = LoggerFactory.getLogger(EasyExcelUtils.class );
private static Sheet initSheet;
static {
initSheet = new Sheet(1, 0);
initSheet.setSheetName( "sheet");
// 设置自适应宽度
initSheet.setAutoWidth(Boolean.TRUE);
}
/**
* 导入
* 少于1000行数据 默认样式
* @param filePath 文件绝对路径
* @return
*/
public static List readLessThan1000Row(String filePath) {
return readLessThan1000RowBySheet(filePath, null );
}
/**
* 导入
* 少于1000行数据，带样式的
* @param filePath 文件绝对路径
* @param sheet
* @return
*/
public static List readLessThan1000RowBySheet(String filePath, Sheet sheet) {
if (!StringUtils.hasText(filePath)) {
return null ;
}
sheet = sheet != null ? sheet : initSheet;
InputStream inputStream = null ;
try {
inputStream = new FileInputStream(filePath);
return EasyExcelFactory.read(inputStream, sheet);
} catch (FileNotFoundException e) {
logger.error( "找不到文件或者文件路径错误", e);
} finally {
try {
if (inputStream != null ) {
inputStream.close();
}
} catch (IOException e) {
logger.error( "excel文件读取失败，失败原因：{}", e);
}
}
return null ;
}
/**
* 导入
* 大于1000行数据 默认样式
* @param filePath
* @return
*/
public static List readMoreThan1000Row(String filePath) {
return readMoreThan1000RowBySheet(filePath, null );
}
/**
* 导入
* 大于1000行数据 自定义样式
* @param filePath
* @param sheet
* @return
*/
public static List readMoreThan1000RowBySheet(String filePath, Sheet sheet) {
if (!StringUtils.hasText(filePath)) {
return null ;
}
sheet = sheet != null ? sheet : initSheet;
InputStream inputStream = null ;
try {
inputStream = new FileInputStream(filePath);
ExcelListener excelListener = new ExcelListener();
EasyExcelFactory.readBySax(inputStream, sheet, excelListener);
return excelListener.getDatas();
} catch (FileNotFoundException e) {
logger.error( "找不到文件或者文件路径错误");
} finally {
try {
if (inputStream != null ) {
inputStream.close();
}
} catch (IOException e) {
logger.error( "excel文件读取失败，失败原因：{}", e);
}
}
return null ;
}
/**
* 导出单个sheet
* @param response
* @param dataList
* @param sheet
* @param fileName
* @throws UnsupportedEncodingException
*/
public static void writeExcelOneSheet(HttpServletResponse response, Listextends BaseRowModel> dataList, Sheet sheet, String fileName) {
if (CollectionUtils.isEmpty(dataList)) {
throw new RuntimeException("导出的表格数据为空!");
}
// 如果sheet为空，则使用默认的
if (null == sheet) {
sheet = initSheet;
}
try {
String value = "attachment; filename=" + new String(
(fileName + new SimpleDateFormat("yyyyMMdd").format(new Date()) + ExcelTypeEnum.XLSX.getValue()).getBytes("gb2312"), "ISO8859-1");
response.setContentType( "multipart/form-data");
response.setCharacterEncoding( "utf-8");
response.setContentType( "application/vnd.ms-excel;charset=utf-8");
response.setHeader( "Content-disposition", value);
ServletOutputStream out = response.getOutputStream();
ExcelWriter writer = EasyExcelFactory.getWriter(out, ExcelTypeEnum.XLSX, true );
// 设置属性类
sheet.setClazz(dataList.get(0).getClass());
writer.write(dataList, sheet);
writer.finish();
out.flush();
} catch (IOException e) {
logger.error( "导出失败，失败原因：{}", e);
}
}
/**
* @Author lockie
* @Description 导出excel 支持一张表导出多个sheet
* @Param OutputStream 输出流
* Map sheetName和每个sheet的数据
* ExcelTypeEnum 要导出的excel的类型 有ExcelTypeEnum.xls 和有ExcelTypeEnum.xlsx
* @Date 上午12:16 2019/1/31
*/
public static void writeExcelMutilSheet(HttpServletResponse response, Mapextends BaseRowModel>> dataList, String fileName) throws UnsupportedEncodingException {
if (CollectionUtils.isEmpty(dataList)) {
throw new RuntimeException("导出的表格数据为空!");
}
try {
String value = "attachment; filename=" + new String(
(fileName + new SimpleDateFormat("yyyyMMdd").format(new Date()) + ExcelTypeEnum.XLSX.getValue()).getBytes("gb2312"), "ISO8859-1");
response.setContentType( "multipart/form-data");
response.setCharacterEncoding( "utf-8");
response.setContentType( "application/vnd.ms-excel;charset=utf-8");
response.setHeader( "Content-disposition", value);
ServletOutputStream out = response.getOutputStream();
ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true );
// 设置多个sheet
setMutilSheet(dataList, writer);
writer.finish();
out.flush();
} catch (IOException e) {
logger.error( "导出异常", e);
}
}
/**
* @Author lockie
* @Description //setSheet数据
* @Date 上午12:39 2019/1/31
*/
private static void setMutilSheet(Mapextends BaseRowModel>> dataList, ExcelWriter writer) {
int sheetNum = 1;
for (Map.Entryextends BaseRowModel>> stringListEntry : dataList.entrySet()) {
Sheet sheet = new Sheet(sheetNum, 0, stringListEntry.getValue().get(0).getClass());
sheet.setSheetName(stringListEntry.getKey());
writer.write(stringListEntry.getValue(), sheet);
sheetNum ++;
}
}
/**
* 导出监听
*/
@Data
public static class ExcelListener extends AnalysisEventListener {
private List datas = new ArrayList<>();
/**
* 逐行解析
* @param object 当前行的数据
* @param analysisContext
*/
@Override
public void invoke(Object object, AnalysisContext analysisContext) {
if (object != null ) {
datas.add(object);
}
}
/**
* 解析完所有数据后会调用该方法
* @param analysisContext
*/
@Override
public void doAfterAllAnalysed(AnalysisContext analysisContext) {
}
}
}
package com.sf.detectprocess.controller.param.export;
import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.metadata.BaseRowModel;
import com.sf.detectprocess.core.constant.SystemConstants;
import lombok.*;
import java.math.BigDecimal;
import java.util.Date;
/**
* @description: 导出订单信息
* @author : zhucj
* @date: 2019-11-05 15:48
*/
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@ToString
public class ExportComeInsureInfo extends BaseRowModel {
@ExcelProperty(value = "订单号",index = 0)
private String orderNo;
@ExcelProperty(value = "订单生成时间",index = 1,format = SystemConstants.DEFAULT_DATETIME_FORMAT)
private Date createTime;
@ExcelProperty(value = "起运日期",index = 2)
private String comeTime;
@ExcelProperty(value = "物品名称",index = 3)
private String goodsInfo;
@ExcelProperty(value = "包装件数",index = 4)
private Integer countPack;
@ExcelProperty(value = "起点",index = 5)
private String comeSendAddress;
@ExcelProperty(value = "终点",index = 6)
private String comeConsignAddress;
@ExcelProperty(value = "单号",index = 7)
private String waybillNo;
@ExcelProperty(value = "声明价值",index = 8)
private BigDecimal sumInsureValue;
}
com.alibaba
easyexcel
1.1.2-beta5
