文件导出成excel-java

1、新建一个Excel文档工具类

package com.offcial.util;

import java.util.List;
import java.util.Map;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
/**
* 导出Excel文档工具类
* @author
* @date
* */
public class ExcelUtil {

/**
* 创建excel文档，
* @param list 数据
* @param keys list中map的key数组集合
* @param columnNames excel的列名
* */
public static Workbook createWorkBook(List<Map<String, Object>> list,String []keys,String columnNames[]) {
// 创建excel工作簿
Workbook wb = new HSSFWorkbook();
// 创建第一个sheet（页），并命名
Sheet sheet = wb.createSheet(list.get(0).get("sheetName").toString());
// 手动设置列宽。第一个参数表示要为第几列设；，第二个参数表示列的宽度，n为列高的像素数。
for(int i=0;i<keys.length;i++){
sheet.setColumnWidth((short) i, (short) (35.7 * 150));
}

// 创建第一行
Row row = sheet.createRow((short) 0);

// 创建两种单元格格式
CellStyle cs = wb.createCellStyle();
CellStyle cs2 = wb.createCellStyle();

// 创建两种字体
Font f = wb.createFont();
Font f2 = wb.createFont();

// 创建第一种字体样式（用于列名）
f.setFontHeightInPoints((short) 10);
f.setColor(IndexedColors.BLACK.getIndex());
f.setBoldweight(Font.BOLDWEIGHT_BOLD);

// 创建第二种字体样式（用于值）
f2.setFontHeightInPoints((short) 10);
f2.setColor(IndexedColors.BLACK.getIndex());

//      Font f3=wb.createFont();
//      f3.setFontHeightInPoints((short) 10);
//      f3.setColor(IndexedColors.RED.getIndex());

// 设置第一种单元格的样式（用于列名）
cs.setFont(f);
/*    cs.setBorderLeft(CellStyle.BORDER_THIN);
cs.setBorderRight(CellStyle.BORDER_THIN);
cs.setBorderTop(CellStyle.BORDER_THIN);
cs.setBorderBottom(CellStyle.BORDER_THIN);*/
cs.setAlignment(CellStyle.ALIGN_CENTER);

// 设置第二种单元格的样式（用于值）
cs2.setFont(f2);
/* cs2.setBorderLeft(CellStyle.BORDER_THIN);
cs2.setBorderRight(CellStyle.BORDER_THIN);
cs2.setBorderTop(CellStyle.BORDER_THIN);
cs2.setBorderBottom(CellStyle.BORDER_THIN);*/
cs2.setAlignment(CellStyle.ALIGN_CENTER);
//设置列名
for(int i=0;i<columnNames.length;i++){
Cell cell = row.createCell(i);
cell.setCellValue(columnNames[i]);
cell.setCellStyle(cs);
}
//设置每行每列的值
for (short i = 1; i < list.size(); i++) {
// Row 行,Cell 方格 , Row 和 Cell 都是从0开始计数的
// 创建一行，在页sheet上
Row row1 = sheet.createRow((short) i);
// 在row行上创建一个方格
for(short j=0;j<keys.length;j++){
Cell cell = row1.createCell(j);
cell.setCellValue(list.get(i).get(keys[j]) == null?" ": list.get(i).get(keys[j]).toString());
cell.setCellStyle(cs2);
}
}
return wb;
}

}

2、导出数据的信息

package com.offcial.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.offcial.entity.ChiefUser;
import com.offcial.entity.Finance;
import com.offcial.entity.SalesmanUser;
import com.offcial.service.ChiefService;
import com.offcial.service.FinanceService;
import com.offcial.util.ExcelUtil;
import com.offcial.util.JobNumberCheck;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/*
* 导出
*/
@Controller
public class DownloadAct {

@Autowired
private ChiefService chiefService;
@Autowired
private FinanceService financeService;

//开户信息导出上个月
@RequestMapping(value="/download_customer",produces="text/html;charset=utf-8")
public String download(HttpServletRequest request,HttpServletResponse response) throws IOException{
Date date=new Date();
Calendar c = Calendar.getInstance();
c.setTime(date);
int year= c.get(Calendar.YEAR); //获取完整的年份(4位,1970-????)
int month= c.get(Calendar.MONTH); //获取当前月份(0-11,0代表1月)
int day= c.get(Calendar.DAY_OF_MONTH);
String fileName =String.valueOf(year) +"年"+ String.valueOf(month)+"月份商家表";
// String fileName="excel文件";
//填充ChiefUser数据
List<ChiefUser> chiefUsers=chiefService.chiefMonthQuery();
List<Map<String,Object>> list=createExcelRecord(chiefUsers);
String columnNames[]={"登陆名","用户名","商家类型","手机号","余额","上级商家","业务员"};//列名
String keys[] = {"loginName","userName","type","phone","monery","parentChief","jobNumber"};//map中的key
ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
ExcelUtil.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数，可以打开下载页面
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename="+ new String((fileName + ".xls").getBytes(), "iso-8859-1"));
ServletOutputStream out = response.getOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
// Simple read/write loop.
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (final IOException e) {
throw e;
} finally {
if (bis != null)
bis.close();
if (bos != null)
bos.close();
}
return null;
}
private List<Map<String, Object>> createExcelRecord(List<ChiefUser> chiefUsers) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "sheet1");
listmap.add(map);
ChiefUser chiefUser=null;
for (int j = 0; j < chiefUsers.size(); j++) {
chiefUser=chiefUsers.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
String keys[] = {"userName","type","phone","monery","parentChief","jobNumber"};//map中的key
int type=chiefUser.getType();
String ty="";
if(type==0){
ty="普通商家";
}else if(type==1){
ty="运营商";
}else if(type==2){
ty="一星商家";
}else if(type==3){
ty="二星商家";
}else if(type==4){
ty="三星商家";
}
/* int parentChief=chiefUser.getParentChief();
String pc="";
if(parentChief==84){
pc="安徽运营中心";
}else if(parentChief==95){
pc="邳州运营中心";
}else if(parentChief==240){
pc="萧县运营中心";
}*/
String JobNumber = chiefUser.getJobNumber();
List<SalesmanUser> li
4000
st= chiefService.jobNumberQuery();
if(list !=null){
if(list.size()>0){
for(SalesmanUser sal :list){
if(JobNumber.equals(sal.getJobNumber())){
String jobNum=sal.getJobNumber()+":"+sal.getName();
chiefUser.setJobNum(jobNum);
}
}
}
}
//商家的判断
int parChief=chiefUser.getParentChief();
List<ChiefUser> lists= chiefService.chiefTypeQuery();
if(lists !=null){
if(lists.size()>0){
for(ChiefUser chief:lists){
if(parChief==chief.getId()){
chiefUser.setParChief(chief.getLoginName());
}
}
}
}
String jobNumber=chiefUser.getJobNumber();
mapValue.put("loginName", chiefUser.getLoginName());
mapValue.put("userName", chiefUser.getUserName());
mapValue.put("type", ty);
mapValue.put("phone", chiefUser.getPhone());
mapValue.put("monery", chiefUser.getMonery());
mapValue.put("parentChief", chiefUser.getParChief());
mapValue.put("jobNumber", chiefUser.getJobNum());
listmap.add(mapValue);
}
return listmap;
}
//开户信息导出选定的日期
@RequestMapping(value="/export_customer",produces="text/html;charset=utf-8")
public String export_customer(HttpServletRequest request,HttpServletResponse response) throws IOException{
String startingTime=request.getParameter("startingTime");
String endTime=request.getParameter("endTime");
String fileName =startingTime +"-"+ endTime+"商家表";
// String fileName="excel文件";
//填充ChiefUser数据

List<ChiefUser> chiefUsers=chiefService.chiefTimeQuery(startingTime,endTime);
List<Map<String,Object>> list=exportCustomerRecord(chiefUsers);
String columnNames[]={"登陆名","用户名","商家类型","手机号","余额","上级商家","业务员"};//列名
String keys[] = {"loginName","userName","type","phone","monery","parentChief","jobNumber"};//map中的key
ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
ExcelUtil.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数，可以打开下载页面
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename="+ new String((fileName + ".xls").getBytes(), "iso-8859-1"));
ServletOutputStream out = response.getOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
// Simple read/write loop.
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (final IOException e) {
throw e;
} finally {
if (bis != null)
bis.close();
if (bos != null)
bos.close();
}
return null;
}
private List<Map<String, Object>> exportCustomerRecord(List<ChiefUser> chiefUsers) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "sheet1");
listmap.add(map);
ChiefUser chiefUser=null;
for (int j = 0; j < chiefUsers.size(); j++) {
chiefUser=chiefUsers.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
String keys[] = {"userName","type","phone","monery","parentChief","jobNumber"};//map中的key
int type=chiefUser.getType();
String ty="";
if(type==0){
ty="普通商家";
}else if(type==1){
ty="运营商";
}else if(type==2){
ty="一星商家";
}else if(type==3){
ty="二星商家";
}else if(type==4){
ty="三星商家";
}
/* int parentChief=chiefUser.getParentChief();
String pc="";
if(parentChief==84){
pc="安徽运营中心";
}else if(parentChief==95){
pc="邳州运营中心";
}else if(parentChief==240){
pc="萧县运营中心";
}*/
//业务员的判断
String JobNumber = chiefUser.getJobNumber();
List<SalesmanUser> list= chiefService.jobNumberQuery();
if(list !=null){
if(list.size()>0){
for(SalesmanUser sal :list){
if(JobNumber.equals(sal.getJobNumber())){
String jobNum=sal.getJobNumber()+":"+sal.getName();
chiefUser.setJobNum(jobNum);
}
}
}
}
//商家的判断
int parChief=chiefUser.getParentChief();
List<ChiefUser> lists= chiefService.chiefTypeQuery();
if(lists !=null){
if(lists.size()>0){
for(ChiefUser chief:lists){
if(parChief==chief.getId()){
chiefUser.setParChief(chief.getLoginName());
}
}
}
}
String jobNumber=chiefUser.getJobNumber();
mapValue.put("loginName", chiefUser.getLoginName());
mapValue.put("userName", chiefUser.getUserName());
mapValue.put("type", ty);
mapValue.put("phone", chiefUser.getPhone());
mapValue.put("monery", chiefUser.getMonery());
mapValue.put("parentChief", chiefUser.getParChief());
mapValue.put("jobNumber", chiefUser.getJobNum());
listmap.add(mapValue);
}
return listmap;
}
//报表的导出
@RequestMapping(value="/download_finance",produces="text/html;charset=utf-8")
public String download_finance(HttpServletRequest request,HttpServletResponse response) throws IOException{
String startingTime=request.getParameter("startingTime");
String endTime=request.getParameter("endTime");
String fileName =startingTime +"-"+ endTime+"财务报表";
// String fileName="excel文件";
//填充Finance数据
List<Finance> finances=financeService.finTimeQuery(startingTime,endTime);
List<Map<String,Object>> list=financeExcelRecord(finances);
String columnNames[]={"客户名称","金额","说明","类型","创建时间","操作人工号"};//列名
String keys[] = {"userName","money","explains","type","createTime","creatorNumber"};//map中的key
ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
ExcelUtil.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数，可以打开下载页面
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename="+ new String((fileName + ".xls").getBytes(), "iso-8859-1"));
ServletOutputStream out = response.getOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
// Simple read/write loop.
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (final IOException e) {
throw e;
} finally {
if (bis != null)
bis.close();
if (bos != null)
bos.close();
}
return null;
}
private List<Map<String, Object>> financeExcelRecord(List<Finance> finances) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "sheet1");
listmap.add(map);
Finance finance=null;
for (int j = 0; j < finances.size(); j++) {
finance=finances.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
String keys[] = {"userName","money","explains","type","createTime","creatorNumber"};//map中的key
String type=finance.getType();
if(type.equals("0")){
type="开户充值";
}else if(type.equals("1")){
type="客服修改";
}else if(type.equals("2")){
type="线上充值";
}

mapValue.put("userName", finance.getUserName());
mapValue.put("money", finance.getMoney());
mapValue.put("explains", finance.getExplains());
mapValue.put("type", type);
mapValue.put("createTime", finance.getCreateTime());
mapValue.put("createTime", finance.getCreatorNumber());
listmap.add(mapValue);
}
return listmap;
}
}