poi：讀取excel檔案模板並填入資料（合併sheet）並且下載
今天做一個到處excel的功能，涉及到多表查詢，然後讀取excel模板檔案並寫入查詢到的資料，並且要合併sheet，合併單元格，下載等功能，附上程式碼：
Conreoller類:
/**
* 匯出excel
*/
public ModelAndView outContactExcel(HttpServletRequest request, HttpServletResponse response) throws Exception {
JSONObject result = new JSONObject();
HttpSession session = request.getSession();
UserSession userSession = (UserSession) session.getAttribute("userSession");
String userRole = userSession.getUserRoleNames();
if (userRole.indexOf(CORE) < 0) {
response.sendRedirect(AUTH);
return null;
}
String projectName = af.showNull(request.getParameter("projectName"));
String subject = af.showNull(request.getParameter("subject"));
String keyId = af.showNull(request.getParameter("keyId"));
String status = af.showNull(request.getParameter("status"));
String startTime = af.showNull(request.getParameter("startTime"));
String endTime = af.showNull(request.getParameter("endTime"));
// 預設三個月
if ("".equals(startTime) && "".equals(endTime)) {
Date now = new Date();
endTime = String.valueOf(now.getTime());
startTime = String.valueOf(getSomeBefore(now));
}
// 查詢資料
Connection conn = null;
List<ConfirmationCountContact> list = null;
CountService service = null;
try {
conn = new DBConnect().getConnect("");
service = new CountService(conn);
list = service.getConstactFlow(keyId, status, startTime, endTime, projectName, subject);
if (CollectionUtils.isEmpty(list)) {
result.put("code", Constants.FAIL_CODE);
result.put("msg", Constants.LIST_NULL);
return new ModelAndView(Constants.ERROR_VIEW, result);
}
if (list.size() > 3000) {
result.put("code", Constants.FAIL_CODE);
result.put("msg", Constants.NUM_MAX);
return new ModelAndView(Constants.ERROR_VIEW, result);
}
} catch (Exception e) {
result.put("code", Constants.FAIL_CODE);
result.put("msg", Constants.SELECT_FAIL);
return new ModelAndView(Constants.ERROR_VIEW, result);
} finally {
DbUtil.close(conn);
}
// 讀取模板檔案
InputStream stream = ConfirmationCountAction.class.getClassLoader()
.getResourceAsStream("template/往來函證統計表.xlsx");
if (stream == null) {
result.put("code", Constants.FAIL_CODE);
result.put("msg", Constants.DOWN_FAIL);
return new ModelAndView(Constants.ERROR_VIEW, result);
}
// 寫入poi
Workbook workBook = null;
ByteArrayOutputStream out = new ByteArrayOutputStream();
ServletOutputStream sout = null;
try {
workBook = new XSSFWorkbook(stream);
} catch (Exception ex) {
try {
workBook = new HSSFWorkbook(stream);
} catch (Exception e) {
}
}
try {
// 寫入資料
if (workBook == null) {
result.put("code", Constants.FAIL_CODE);
result.put("msg", Constants.DOWN_FAIL_TWO);
return new ModelAndView(Constants.ERROR_VIEW, result);
}
workBook = service.writerWorkbookContact(workBook, list);
workBook.write(out);
// 下載
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
String bodyName = "往來函證統計表-" + format.format(new Date()) + ".xlsx";
sout = response.getOutputStream();
response.reset();
response.setContentType("application/octet-stream");
response.addHeader("Content-Disposition",
"attachment;filename=" + new String(bodyName.getBytes(), "ISO-8859-1"));
response.setHeader("Content-Length", new Integer(out.size()).toString());
sout.write(out.toByteArray());
sout.flush();
} catch (Exception e) {
e.printStackTrace();
result.put("code", Constants.FAIL_CODE);
result.put("msg", Constants.DOWN_FAIL_THREE);
return new ModelAndView(Constants.ERROR_VIEW, result);
} finally {
try {
if (sout != null) {
sout.close();
}
if (out != null) {
out.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
public Long getSomeBefore(Date now) {
Date before = new Date();
Calendar calendar = Calendar.getInstance();
calendar.setTime(now);
calendar.add(Calendar.MONTH, -3);
before = calendar.getTime();
return before.getTime();
}
Service類：
package com.zh.audit.confirmation.service;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellRangeAddress;
import com.zh.audit.confirmation.until.ExcelUntil;
import com.zh.audit.confirmation.vo.ConfirmationCountContact;
import com.zh.framework.pub.db.DbUtil;
import com.zh.framework.pub.log.Log;
public class CountService {
private Connection conn = null;
public CountService(Connection conn) {
this.conn = conn;
}
/**
* 查詢往來函證所有相關資訊
*
* @param confirmationId
* @return
* @throws Exception
*/
public List<ConfirmationCountContact> getConstactFlow(String keyId, String status, String startTime, String endTime,
String projectName, String subject) throws Exception {
DbUtil.checkConn(conn);
PreparedStatement ps = null;
ResultSet rs = null;
ConfirmationCountContact f = null;
List<ConfirmationCountContact> list = new ArrayList<>();
try {
StringBuffer s = new StringBuffer();
s.append("SELECT k.*, l.account_state,l.reply_state,l.sender_company_state,l.address_state,");
s.append(" l.format_state,l.seal_state,l.situation_state,l.spec_explain_state,l.account,l.`explain`FROM (");
s.append(" SELECT i.*, j.reply_time,j.reply_type,j.reply_express,j.express_num AS reply_num FROM (");
s.append(
" SELECT g.*, h.confirmation_id,h.send_time,h.send_user,h.send_phone,h.send_express,h.express_num");
s.append(
" FROM ( SELECT * FROM ( SELECT d.*, `subject`,e.end_time AS end_date,owes,owed,remark FROM ( SELECT * FROM (");
s.append(" SELECT a.*, b.ProjectName AS project_name FROM ( SELECT * FROM confirmation WHERE 1 = 1");
s.append(" AND confirmation.`status` != 99 AND type = 1 ");
if (!"".equals(keyId)) {
s.append(" AND key_id = '" + keyId + "' \n");
}
if (!"".equals(status)) {
s.append(" AND confirmation.`status` = '" + status + "' \n");
}
if (!"".equals(startTime) && !"".equals(endTime)) {
s.append(" AND create_time between '" + startTime + "' and '" + endTime + "' \n");
}
s.append(" ) AS a LEFT JOIN z_project AS b ON a.project_id = b.ProjectID ) AS c WHERE 1 = 1 ");
if (!"".equals(projectName)) {
s.append(" AND c.project_name like '%" + projectName + "%' \n");
}
s.append(" ) AS d LEFT JOIN confirmation_contact AS e ON e.confirmation_id = d.id ) AS f WHERE 1 = 1 ");
if (!"".equals(subject)) {
s.append(" AND f.`subject` = '" + subject + "' \n");
}
s.append(" ) AS g LEFT JOIN confirmation_send AS h ON h.confirmation_id = g.id ) AS i ");
s.append(" LEFT JOIN confirmation_reply AS j ON j.confirmation_id = i.id ) AS k ");
s.append(" LEFT JOIN confirmation_check AS l ON l.confirmation_id = k.id ");
ps = conn.prepareStatement(s.toString());
rs = ps.executeQuery();
while (rs.next()) {
int i = 1;
f = new ConfirmationCountContact();
f.setId(rs.getLong(i++));
f.setType(rs.getInt(i++));
f.setProjectId(rs.getLong(i++));
f.setCustomerId(rs.getLong(i++));
f.setKeyId(rs.getString(i++));
f.setCompany(rs.getString(i++));
f.setCompanyAddress(rs.getString(i++));
f.setCompanyMobile(rs.getString(i++));
f.setCreateUserid(rs.getString(i++));
f.setCreateUser(rs.getString(i++));
f.setOther(rs.getString(i++));
f.setCreateTime(rs.getLong(i++));
f.setUpdateTime(rs.getLong(i++));
f.setStatus(rs.getInt(i++));
f.setCurrency(rs.getString(i++));
f.setSampleFeature(rs.getString(i++));
f.setSection(rs.getString(i++));
f.setEndTime(rs.getLong(i++));
f.setDeposit(rs.getBigDecimal(i++));
f.setCompanyUser(rs.getString(i++));
f.setTwoCode(rs.getString(i++));
f.setProjectName(rs.getString(i++));
f.setSubject(rs.getString(i++));
f.setEndDate(rs.getString(i++));
f.setOwes(rs.getBigDecimal(i++));
f.setOwed(rs.getBigDecimal(i++));
f.setRemark(rs.getString(i++));
f.setConfirmationId(rs.getString(i++));
f.setSendTime(rs.getString(i++));
f.setSendUser(rs.getString(i++));
f.setSendPhone(rs.getString(i++));
f.setSendExpress(rs.getString(i++));
f.setExpressNum(rs.getString(i++));
f.setReplyTime(rs.getString(i++));
f.setReplyType(rs.getInt(i++));
f.setReplyExpress(rs.getString(i++));
f.setReplyNum(rs.getString(i++));
f.setAccountState(rs.getInt(i++));
f.setReplyState(rs.getInt(i++));
f.setSenderCompanyState(rs.getInt(i++));
f.setAddressState(rs.getInt(i++));
f.setFormatState(rs.getInt(i++));
f.setSealState(rs.getInt(i++));
f.setSituationState(rs.getInt(i++));
f.setSpecExplainState(rs.getInt(i++));
f.setAccount(rs.getString(i++));
f.setExplain(rs.getString(i++));
list.add(f);
}
} catch (Exception e) {
Log.error("查詢失敗", e);
throw e;
} finally {
if (ps != null) {
DbUtil.close(ps);
}
}
return list;
}
public Workbook writerWorkbookContact(Workbook workBook, List<ConfirmationCountContact> list) {
Sheet sheet = workBook.getSheetAt(0);
Sheet sheet2 = workBook.getSheetAt(1);
int size = list.size();
for (int i = 0; i < size; i++) {
ConfirmationCountContact c = list.get(i);
Row row = null;
if (i == 0) {
row = sheet.getRow(3);
} else {
row = ExcelUntil.setCellStype(sheet, 3, 3 + i);
}
row.getCell(0).setCellValue(i + 1);
row.getCell(1).setCellValue(c.getSampleFeature());
row.getCell(2).setCellValue(c.getCompany());
row.getCell(3).setCellValue(c.getSubject());
row.getCell(4).setCellValue(String.valueOf(c.getOwes() == null ? c.getOwed() : c.getOwes()));
row.getCell(5).setCellValue(c.getKeyId());
if (c.getAccountState() != null) {
if (c.getAccountState() == 1) {
row.getCell(6).setCellValue(String.valueOf(c.getOwes() == null ? c.getOwed() : c.getOwes()));
row.getCell(7).setCellValue("√");
} else if (c.getAccountState() == 0) {
row.getCell(6).setCellValue(c.getAccount());
row.getCell(7).setCellValue("×");
} else {
row.getCell(6).setCellValue("");
row.getCell(7).setCellValue("");
}
}
row.getCell(12).setCellValue(c.getSendExpress());
row.getCell(13).setCellValue(c.getExpressNum());
if (c.getReplyType() != null) {
if (c.getReplyType() == 3) {
row.getCell(14).setCellValue("√");
row.getCell(15).setCellValue("快遞");
row.getCell(16).setCellValue(c.getReplyState() == 1 ? "√" : "×");
row.getCell(17).setCellValue("");
row.getCell(18).setCellValue("");
} else if (c.getReplyType() == 2) {
row.getCell(14).setCellValue("");
row.getCell(15).setCellValue("傳真");
row.getCell(16).setCellValue("");
row.getCell(17).setCellValue(c.getReplyState() == 1 ? "√" : "×");
row.getCell(18).setCellValue("");
} else if (c.getReplyType() == 1) {
row.getCell(14).setCellValue("");
row.getCell(15).setCellValue("郵件");
row.getCell(16).setCellValue("");
row.getCell(17).setCellValue("");
row.getCell(18).setCellValue(c.getReplyState() == 1 ? "√" : "×");
}
}
if (c.getSenderCompanyState() != null) {
row.getCell(19).setCellValue(c.getSenderCompanyState() == 1 ? "√" : "×");
}
if (c.getAddressState() != null) {
row.getCell(20).setCellValue(c.getAddressState() == 1 ? "√" : "×");
}
if (c.getFormatState() != null) {
row.getCell(21).setCellValue(c.getFormatState() == 1 ? "√" : "×");
}
if (c.getSealState() != null) {
row.getCell(22).setCellValue(c.getSealState() == 1 ? "√" : "×");
}
if (c.getSituationState() != null) {
row.getCell(23).setCellValue(c.getSituationState() == 1 ? "√" : "×");
}
if (c.getSpecExplainState() != null) {
if (c.getSpecExplainState() == 1) {
row.getCell(24).setCellValue("√");
row.getCell(25).setCellValue(c.getExplain());
} else {
row.getCell(24).setCellValue("×");
row.getCell(25).setCellValue("");
}
}
}
// 複製註釋
ExcelUntil.mergeSheet(sheet, sheet2, size + 3);
// 刪除註釋
workBook.removeSheetAt(1);
// 合併單元格
sheet.addMergedRegion(new CellRangeAddress(size + 5, size + 16, 14, 15));
sheet.addMergedRegion(new CellRangeAddress(size + 23, size + 23, 0, 5));
sheet.addMergedRegion(new CellRangeAddress(size + 27, size + 27, 0, 5));
sheet.addMergedRegion(new CellRangeAddress(size + 32, size + 32, 0, 5));
return workBook;
}
}
excel工具類：
package com.zh.audit.confirmation.until;
import java.math.BigInteger;
import java.text.DateFormat;
import java.util.regex.Pattern;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
/**
* excel工具類
*
* @author wangjing
*
*/
public class ExcelUntil {
/**
* 複製上一行的格式樣式
*
* @param sheet
* @param index
* @param newRow
* @return
*/
public static Row setCellStype(Sheet sheet, int index, int newRow) {
Row source = sheet.getRow(index);
Row target = sheet.createRow(newRow);
target.setHeight(source.getHeight());
target.setRowStyle(source.getRowStyle());
for (int i = source.getFirstCellNum(); i < source.getLastCellNum(); i++) {
Cell scell = source.getCell(i);
Cell cell = target.createCell(i);
cell.setCellStyle(scell.getCellStyle());
cell.setCellType(scell.getCellType());
}
return target;
}
/**
* 把sheet2的內容複製到sheet1中
*
* @param sheet1
* @param sheet2
*/
public static void mergeSheet(Sheet sheet1, Sheet sheet2, int num1) {
if (num1 == 0) {
num1 = sheet1.getPhysicalNumberOfRows();
}
int num2 = sheet2.getPhysicalNumberOfRows();
for (int i = 0; i < num2; i++) {
Row row2 = sheet2.getRow(i);
Row row1 = sheet1.createRow(num1 + 1 + i);
row1.setHeight(row2.getHeight());
row1.setRowStyle(row2.getRowStyle());
int first = row2.getFirstCellNum();
int last = row2.getLastCellNum();
for (int j = first; j < last; j++) {
Cell cell2 = row2.getCell(j);
Cell cell1 = row1.createCell(j);
cell1.setCellStyle(cell2.getCellStyle());
cell1.setCellType(cell2.getCellType());
cell1.setCellValue(cellString(cell2, ""));
}
}
}
/**
* 取出cell裡的值
*
* @param cell
* @param cellString
* @return
*/
public static String cellString(Cell cell, String cellString) {
if (cell != null) {
Object o = null;
int cellType = cell.getCellType();
switch (cellType) {
case Cell.CELL_TYPE_BLANK:
o = "";
break;
case Cell.CELL_TYPE_BOOLEAN:
o = cell.getBooleanCellValue();
break;
case Cell.CELL_TYPE_ERROR:
o = "Bad value!";
break;
case Cell.CELL_TYPE_NUMERIC:
o = getValueOfNumericCell(cell);
break;
case Cell.CELL_TYPE_FORMULA:
try {
o = getValueOfNumericCell(cell);
} catch (IllegalStateException e) {
try {
o = cell.getRichStringCellValue().toString();
} catch (IllegalStateException e2) {
o = cell.getErrorCellValue();
}
} catch (Exception e) {
e.printStackTrace();
}
break;
default:
o = cell.getRichStringCellValue().getString();
}
cellString = String.valueOf(o);
}
return cellString;
}
private static Object getValueOfNumericCell(Cell cell) {
Boolean isDate = DateUtil.isCellDateFormatted(cell);
Double d = cell.getNumericCellValue();
Object o = null;
if (isDate) {
o = DateFormat.getDateInstance().format(cell.getDateCellValue());
} else {
o = getRealStringValueOfDouble(d);
}
return o;
}
private static String getRealStringValueOfDouble(Double d) {
String doubleStr = d.toString();
boolean b = doubleStr.contains("E");
int indexOfPoint = doubleStr.indexOf('.');
if (b) {
int indexOfE = doubleStr.indexOf('E');
// 小數部分
BigInteger xs = new BigInteger(doubleStr.substring(indexOfPoint + BigInteger.ONE.intValue(), indexOfE));
// 指數
int pow = Integer.valueOf(doubleStr.substring(indexOfE + BigInteger.ONE.intValue()));
int xsLen = xs.toByteArray().length;
int scale = xsLen - pow > 0 ? xsLen - pow : 0;
doubleStr = String.format("%." + scale + "f", d);
} else {
java.util.regex.Pattern p = Pattern.compile(".0$");
java.util.regex.Matcher m = p.matcher(doubleStr);
if (m.find()) {
doubleStr = doubleStr.replace(".0", "");
}
}
return doubleStr;
}
}
excel 插入行操作：（上面沒用到）
插入操作其實是先把下面的行往下移，然後新建row，shiftRows就是移的方法。
eg:sheet.shiftRows(4, 10, 1, true, true);
sheet.creatRow(4);//先移位再新建行
引數解釋：4：從第幾行插入,
10:4-10行需要往下移，
1：往下移動多少行
後面兩個true是需要設定樣式的
