easypoi的多sheet页导入与导出
maven:
cn.afterturn
easypoi-base
3.0.3
cn.afterturn
easypoi-web
3.0.3
cn.afterturn
easypoi-annotation
3.0.3
环境:SSM，jdk1.8
一、多sheet页导入，看注释
@RequestMapping(value = "/excelImport", method = RequestMethod.POST)
@ResponseBody
public Object excelImport(MultipartFile file) throws IOException {
//根据file得到Workbook,主要是要根据这个对象获取,传过来的excel有几个sheet页
Workbook hssfWorkbook = ExcelUtil.getWorkBook(file);
StringBuilder sb=new StringBuilder();
try {
ImportParams params = new ImportParams();
// 循环工作表Sheet
for (int numSheet = 0; numSheet < hssfWorkbook.getNumberOfSheets(); numSheet++) {
//表头在第几行
params.setTitleRows(0);
//距离表头中间有几行不要的数据
//params.setStartRows(1);
//第几个sheet页
params.setStartSheetIndex(numSheet);
//验证数据
params.setNeedVerfiy(true);
ExcelImportResult
ExcelUtil工具类
import java.beans.PropertyDescriptor;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;
import cn.zj.pubinfo.comm.core.exception.BaseException;
public class ExcelUtil {
/**
* 得到Workbook对象
* @param file
* @return
* @throws IOException
*/
public static Workbook getWorkBook(MultipartFile file) throws IOException{
//这样写 excel 能兼容03和07
InputStream is = file.getInputStream();
Workbook hssfWorkbook = null;
try {
hssfWorkbook = new HSSFWorkbook(is);
} catch (Exception ex) {
is =file.getInputStream();
hssfWorkbook = new XSSFWorkbook(is);
}
return hssfWorkbook;
}
/**
* 得到错误信息
* @param sb
* @param list
* @param i
* @param obj
* @param name 用哪个属性名去表明不和规定的数据
* @param msg
* @throws Exception
*/
public static void getWrongInfo(StringBuilder sb,List list,int i,Object obj,String name,String msg) throws Exception{
Class clazz=obj.getClass();
Object str=null;
//得到属性名数组
Field[] fields = clazz.getDeclaredFields();
for(Field f : fields){
if(f.getName().equals(name)){
//用来得到属性的get和set方法
PropertyDescriptor pd = new PropertyDescriptor(f.getName(), clazz);
//得到get方法
Method getMethod=pd.getReadMethod();
str = getMethod.invoke(obj);
}
}
if(i==0)
sb.append(msg+str+";");
else if(i==(list.size()-1))
sb.append(str+"");
else
sb.append(str+";");
}
/**
*
* @param response
* @param wb
* @param showFileName
* @throws IOException
*/
public static void downloadExcel(HttpServletResponse response, Workbook wb, String showFileName) throws IOException {
// 判断数据
if(wb == null) {
throw new BaseException(50001000);
}
// 设置excel的文件名称
String excelName = "人事信息" ;
// 重置响应对象
response.reset();
// 当前日期，用于导出文件名称
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
String dateStr = excelName+sdf.format(new Date())+".xls";
// 指定下载的文件名--设置响应头
response.addHeader("Content-Disposition", "attachment;filename=" + new String(dateStr.getBytes("gb2312"), "ISO8859-1"));
response.setContentType("application/octet-stream;charset=UTF-8");
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
// 写出数据输出流到页面
try {
OutputStream output = response.getOutputStream();
BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);
wb.write(bufferedOutPut);
bufferedOutPut.flush();
bufferedOutPut.close();
output.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}Entity1实体类： 利用Hibernate Validate 来验证导入字段的信息是否符合 @Zone是自定义的标签
public class Entity1 {
/**
* 姓名
*/
@Excel(name = "姓名")
@Zone(zone={"葛","卢"})
private String realName;
/**
* 身份证号
*/
@Excel(name = "身份证号")
@NotBlank(message = "不能为空")
private String idCard;
public Entity1() {
super();
}
public Entity1(String realName, String idCard) {
super();
this.realName = realName;
this.idCard = idCard;
}
public String getRealName() {
return realName;
}
public void setRealName(String realName) {
this.realName = realName;
}
public String getIdCard() {
return idCard;
}
public void setIdCard(String idCard) {
this.idCard = idCard;
}
@Override
public String toString() {
return "Entity1 [realName=" + realName + ", idCard=" + idCard + "]";
}
}
二、多sheet页的导出，相较于导入 简单多了
// 导出
@RequestMapping(value = "/excelExport", method = RequestMethod.POST)
public void excelExport(HttpServletResponse response, @RequestParam Map params) throws IOException {
//把要导出的信息放在map里面
Map map = new HashMap();
//获取信息
// 员工信息
List personList = CallServiceUtil.callDataService("personService", "excelExport",
new Object[] { params }, new Class[] { Map.class });
// 教育经历
List educationList = CallServiceUtil.callDataService("educationService", "excelExport",
new Object[] { params }, new Class[] { Map.class });
//合同
List contract = CallServiceUtil.callDataService("contractService", "excelExport",
new Object[] { params }, new Class[] { Map.class });
//往map里面存放信息
map.put("person", personList);
map.put("education", educationList);
map.put("contract", contract);
// 获取导出excel指定模版
File fs = new File(this.getClass().getResource("/").getPath());
// 文件存放目录 自定义
String path = fs.getAbsolutePath().substring(0, fs.getAbsolutePath().indexOf("wanbao-console") + "wanbao-console".length() +
1) .concat("src\\main\\webapp\\static\\").concat(BaseController.
MUDULE_RSXX_EXPORT_FILE_PATH);
TemplateExportParams tep = new TemplateExportParams(path, true);
//把map里面的信息放入模板
Workbook workbook = ExcelExportUtil.exportExcel(tep, map);
//下载
ExcelUtil.downloadExcel(response, workbook, "人员信息");
} 模板：
第一个：{{$fe: person t.realName
最后一个：t.usedName}}
日期格式化：fd:(t.partyDate;yyyy-MM-dd)
第一个和最后一个的大括号把中间的都包起来了。
官方API：http://easypoi.mydoc.io/#text_225967