java 導入導出 excel
一、POI
private ActionForward importExcel(ActionMapping mapping, LotStepEndTimeForm theform, HttpServletRequest request,
HttpServletResponse response) throws Exception {
try {
FormFile upFile = theform.getFormFile();
String fileName = upFile.getFileName();
if (StringUtils.isEmpty(fileName)) {
throw new ValidateFailureException("Please select the Excel file to import!");
}
if (StringUtils.endsWithIgnoreCase(fileName, ".XLS") != true || upFile.getFileSize() < 1) {
throw new ValidateFailureException("Only import .xls files!");
}
// 導入Excel
ExcelImportHelper excelHelper = new ExcelImportHelper(fileName, 0, upFile);
List<String[]> implist = excelHelper.getStringArrayList();
excelHelper.closeExcel();
int startRow = 1;
List<Map<String, String>> impLotStepEndTimeList = new ArrayList<Map<String, String>>();
for (int i = startRow; i < implist.size(); i++) {
String[] rowData = implist.get(i);
Map<String, String> endTimeInfo = new HashMap<>();
boolean isNotEmptyRow = false;// 爲true時，表示此行至少有一列數據，爲false時，表示從此行數據全是空的
for (int k = 0; k < colIds.length && k < rowData.length; k++) {
endTimeInfo.put(colIds[k], rowData[k]);
isNotEmptyRow = isNotEmptyRow || StringUtils.isNotEmptyTrim(rowData[k]);
}
if (isNotEmptyRow) {
impLotStepEndTimeList.add(validateImportData(endTimeInfo, theform, request));
}
}
// 判斷是否重複,重複數據validateFlag置爲"false"
Set<String> uniqueSet = new HashSet<String>();
for (Map<String, String> impEndTime : impLotStepEndTimeList) {
String uniqueKey = MapUtils.getString(impEndTime, "lotId") + MapUtils.getString(impEndTime, "stepId");
if (uniqueSet.contains(uniqueKey)) {
if (MapUtils.getBooleanValue(impEndTime, "validateFlag")) {
impEndTime.put("validateFlag", new Boolean(false).toString());
impEndTime.put("validateMsg", "The data is repeated!");
}
} else {
uniqueSet.add(uniqueKey);
}
}
request.setAttribute("impLotStepEndTimesJsonStr", JSONUtils.toJSONString(impLotStepEndTimeList).replaceAll("\"", "\'"));
request.setAttribute("impLotStepEndTimeList", impLotStepEndTimeList);
} catch (Exception e) {
log.error(e);
request.setAttribute(ERROR_MSG, e.getMessage().replaceAll("\"", "\'"));
}
return mapping.findForward("import");
}
private Map validateImportData(Map<String, String> endTimeInfo, LotStepEndTimeForm theform,
HttpServletRequest request) {
HttpSession session = request.getSession(false);
Long facilityRrn = (Long) session.getAttribute(SessionNames.FACILITY_KEY);
StringBuffer validateMsg = new StringBuffer();
try {
String lotId = StringUtils.trimToUpperCase(MapUtils.getString(endTimeInfo, "lotId"));
String stepId = StringUtils.trimToUpperCase(MapUtils.getString(endTimeInfo, "stepId"));
String endTime = StringUtils.trim(MapUtils.getString(endTimeInfo, "endTime"));
String comments = StringUtils.trim(MapUtils.getString(endTimeInfo, "comments"));
if (StringUtils.isEmpty(lotId)) {
throw new ValidateFailureException("Lot Id can not be empty ");
}
if (getLotRrn(facilityRrn, lotId) <= 0) {
throw new ValidateFailureException("Lot Id " + lotId + " does not exist ");
}
if (StringUtils.isEmpty(stepId)) {
throw new ValidateFailureException("Step Id can not be empty ");
}
if (getInstanceRrn(stepId, getNamedSpace(ObjectList.OPERATION_KEY, facilityRrn),
ObjectList.OPERATION_KEY) <= 0) {
throw new ValidateFailureException("Step Id " + stepId + " does not exist ");
}
if (StringUtils.isEmpty(endTime)) {
throw new ValidateFailureException("EndTime can not be empty ");
}
if (!NumberUtils.isNumber(endTime)) {
throw new ValidateFailureException("EndTime must be Number ");
}
endTime = new BigDecimal(endTime).setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString();// 保留兩位有效數字
endTimeInfo.put("lotId", lotId);
endTimeInfo.put("stepId", stepId);
endTimeInfo.put("endTime", endTime);
endTimeInfo.put("comments", comments);
} catch (Exception e) {
validateMsg.append(e.getMessage());
}
endTimeInfo.put("validateMsg", validateMsg.toString());
endTimeInfo.put("validateFlag", new Boolean(validateMsg.length() == 0).toString());
return endTimeInfo;
}
ExcelImportHelper.java
package com.mycim.core.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.DateUtil;
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.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.struts.upload.FormFile;
/**
* Excel導入工具類
*
*/
public class ExcelImportHelper {
private static final String XLS_TYPE = "XLS"; // Excel 2007 之前，後綴爲.xls
private static final String XLSX_TYPE = "XLSX"; // Excel 2007 之後，後綴爲.xlsx
private String excelType = null; // XLS_TYPE or XLSX_TYPE Excel類型
private Workbook workbook = null;
private Sheet sheet = null;
private Row row = null;
private Cell cell = null;
private int totalRows = 0; // 總行數
private short totalCells = 0; // 總列數
private Map<String, String> stringMapData = null; // 存儲字符串Map
private List<String[]> stringArrayList = null; // 存儲字符串數組List
private SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd"); // 日期格式yyyy-mm-dd
/**
* 讀取Excel
*
* @param filePath 文件路徑
* @param sheetIndex 表索引，第一個表爲0
* @throws IOException
*/
public ExcelImportHelper(String filePath, int sheetIndex, FormFile upFile) throws IOException{
setExcelType(filePath);
if (XLSX_TYPE.equals(excelType)) {
initXLSX(upFile, sheetIndex);
} else if (XLS_TYPE.equals(excelType)) {
initXLS(upFile, sheetIndex);
} else {
throw new IOException("不支持的文件格式！");
}
}
private void initXLS(FormFile upFile, int sheetIndex) throws IOException {
this.workbook = getHssfWorkbook(upFile.getInputStream());
this.sheet = getHssfSheet(sheetIndex);
setTotalRows(sheet);
}
private void initXLSX(FormFile upFile, int sheetIndex) throws IOException {
// 獲取Excel引用
this.workbook = getXssfWorkbook(upFile.getInputStream());
// 獲取Excel引用的第幾張表
this.sheet = getXssfSheet(sheetIndex);
// 獲取總行數
setTotalRows(sheet);
}
// ---------- Private Methods
/**
* 設置當前讀取Excel文件類型
*
* @param filePath 文件路徑
*/
private void setExcelType(String filePath) {
this.excelType = "X".equals(StringUtils.substringAfter(filePath.toUpperCase(), ".XLS")) ? XLSX_TYPE : XLS_TYPE;
}
/**
* 獲取當前讀取Excel文件類型
*
* @return XLS_TYPE or XLSX_TYPE
*/
public String getExcelType() {
return excelType;
}
/**
* 獲取文件字節流
*
* @param filePath 文件路徑
* @return FileInputStream
* @throws FileNotFoundException
*/
private FileInputStream getFile(String filePath) throws FileNotFoundException {
return new FileInputStream(new File(filePath));
}
// ----- For XLS
/**
* XLS類型的Excel引用
*
* @param file 文件字節流
* @return HSSFWorkbook
* @throws IOException
*/
private HSSFWorkbook getHssfWorkbook(InputStream file) throws IOException {
return new HSSFWorkbook(file);
}
/**
* XLS類型的Excel表單
*
* @param sheetIndex 表單索引，第一個表爲0
* @return HSSFSheet
*/
private HSSFSheet getHssfSheet(int sheetIndex) {
return (HSSFSheet) this.workbook.getSheetAt(sheetIndex);
}
/**
* XLS類型的Excel表單中的行
*
* @param rowNum 行號
* @return HSSFRow
*/
private HSSFRow getHSSFRow(int rowNum) {
return (HSSFRow) sheet.getRow(rowNum);
}
/**
* XLS類型的Excel表單中的列
*
* @param rowNum 行號
* @param cellNum 列號
* @return HSSFCell
*/
private HSSFCell getHSSFCell(int rowNum, int cellNum) {
return getHSSFRow(rowNum).getCell(cellNum);
}
// ----- For XLSX
/**
* XLSX類型的Excel引用
*
* @param file 文件字節流
* @return XSSFWorkbook
* @throws IOException
*/
private XSSFWorkbook getXssfWorkbook(InputStream file) throws IOException {
return new XSSFWorkbook(file);
}
/**
* XLSX類型的Excel表單
*
* @param sheetIndex 表單索引
* @return XSSFSheet
*/
private XSSFSheet getXssfSheet(int sheetIndex) {
return (XSSFSheet) this.workbook.getSheetAt(sheetIndex);
}
/**
* XLSX類型的Excel表單中的行
*
* @param rowNum 行號
* @return XSSFRow
*/
private XSSFRow getXSSFRow(int rowNum) {
return (XSSFRow) sheet.getRow(rowNum);
}
/**
* XLSX類型的Excel表單中的列
*
* @param rowNum 行號
* @param cellNum 列號
* @return XSSFCell
*/
private XSSFCell getXSSFCell(int rowNum, int cellNum) {
return getXSSFRow(rowNum).getCell(cellNum);
}
/**
* 設置總行數
*
* @param sheet 表單引用 HSSFSheet or XSSFSheet
*/
private void setTotalRows(Sheet sheet) {
this.totalRows = sheet.getLastRowNum() + 1;
}
/**
* 設置某行的總列數
*
* @param row 行引用 HSSFRow or XSSFRow
*/
private void setTotalCells(Row row) {
this.totalCells = row.getLastCellNum();
}
// ---------- Public Methods
/**
* 獲取Excel引用
*
* @return HSSFWorkbook or XSSFWorkbook
*/
public Workbook getWorkbook() {
return workbook;
}
/**
* 獲取Excel表單
*
* @return HSSFSheet or XSSFSheet
*/
public Sheet getSheet() {
return sheet;
}
/**
* 獲取Excel的行
*
* @param i 行號
* @return HSSFRow or XSSFRow
*/
public Row getRow(int i) {
return XLSX_TYPE.equals(excelType) ? getXSSFRow(i) : getHSSFRow(i);
}
/**
* 獲取Excel的列
*
* @param i 行號
* @param j 列號
* @return HSSFCell or XSSFCell
*/
public Cell getCell(int i, int j) {
return XLSX_TYPE.equals(excelType) ? getXSSFCell(i, j) : getHSSFCell(i, j);
}
/**
* 檢查第i行是否爲空行
*
* @param i 行號
* @return boolean ? true : false
*/
public boolean isRowNotNull(int i) {
row = getRow(i);
if (row != null) {
setTotalCells(row);
return true;
}
return false;
}
/**
* 獲取第i行第j列的單元格的值 除日期類型,其他類型全處理爲文本,與表格內容一致
*
* @param i 行號
* @param j 列號
* @return String 單元格中的數據
*/
public String getCellStringValue(int i, int j) {
String val = null;
cell = getCell(i, j);
if (cell != null) {
if (cell.getCellTypeEnum().equals(CellType.NUMERIC) && DateUtil.isCellDateFormatted(cell)) {
val = new SimpleDateFormat("yyyy-MM-dd").format(cell.getDateCellValue());
} else {
cell.setCellType(CellType.STRING);
val = cell.toString().trim();
}
}
return val == null ? "" : val.trim().toUpperCase();
}
/**
* Map類型的數據集合<br>
*
* @return Map<br>
* key: R + i + C + j <br>
* R代表行，i行號，C代表列，j列號<br>
* e.g: map.get("R11C12")<br>
* 第11行第12列的單元格中的值
*/
public Map<String, String> getStringMapData() {
stringMapData = new HashMap<>();
for (int i = 0; i < totalRows; i++) {
if (isRowNotNull(i)) {
for (int j = 0; j < totalCells; j++) {
stringMapData.put("R" + i + "C" + j, getCellStringValue(i, j));
}
}
}
return stringMapData;
}
/**
* String類型數組的List集合<br>
*
* @return List<br>
* Row,String[]: List.get(i) <br>
* Cell,String: List.get(i)[j]<br>
* e.g: list.get(11)[12]<br>
* 第11行第12列的單元格中的值
*/
public List<String[]> getStringArrayList() {
stringArrayList = new ArrayList<>();
for (int i = 0; i < totalRows; i++) {
if (isRowNotNull(i)) {
String[] strings = new String[totalCells];
for (int j = 0; j < totalCells; j++) {
strings[j] = getCellStringValue(i, j);
}
stringArrayList.add(strings);
}
}
return stringArrayList;
}
/**
* 關閉流
*
* @throws IOException
*/
public void closeExcel() throws IOException {
if (workbook != null) {
workbook.close();
}
}
}
二、jxl
private ActionForward exportExcel(ActionMapping mapping, ActionForm form, HttpServletRequest request,
HttpServletResponse response) {
String exportData = request.getParameter("exportData");
try {
ByteArrayOutputStream os = (ByteArrayOutputStream) createWorkBook(exportData, request);
ServletOutputStream out = response.getOutputStream();
response.setHeader("Content-Disposition", "attachment;filename=foupsInfo.xls");
response.setContentType("application/vnd.ms-excel;charset=UTF-8");
out.write(os.toByteArray());
out.flush();
out.close();
} catch (Exception e) {
log.error(e);
}
return null;
}
private OutputStream createWorkBook(String exportData, HttpServletRequest request) throws Exception {
HttpSession session = request.getSession(false);
String language = (String) session.getAttribute(SessionNames.LANGUAGE_KEY);
JSONObject exportJsonObj = JSONObject.fromObject(exportData);
JSONArray headers = exportJsonObj.getJSONArray("headers");
JSONArray rows = exportJsonObj.getJSONArray("rows");
OutputStream os = new ByteArrayOutputStream();
jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(os);
String title = "Foups Info";
jxl.write.WritableSheet ws = wwb.createSheet(title, 0);
try {
jxl.write.WritableFont wf = new jxl.write.WritableFont(WritableFont.TAHOMA, 20, WritableFont.BOLD, true);
jxl.write.WritableCellFormat wcfF = new jxl.write.WritableCellFormat(wf);
wcfF.setAlignment(Alignment.CENTRE);
ws.mergeCells(0, 0, 10, 0);
jxl.write.Label labelTitle = new jxl.write.Label(0, 0, title, wcfF);
ws.addCell(labelTitle);
jxl.write.Label labelColes = null;
jxl.write.WritableFont wfs = new jxl.write.WritableFont(WritableFont.ARIAL, 12, WritableFont.BOLD, false);
jxl.write.WritableCellFormat wfColes = new jxl.write.WritableCellFormat(wfs);
wfColes.setAlignment(Alignment.CENTRE);
// labelColes = new jxl.write.Label(2, 3, "product Id:" + baseInfo.getString("productId"), wfColes);
// ws.addCell(labelColes);
jxl.write.Label labelCols = null;
jxl.write.WritableCellFormat wfCols = new jxl.write.WritableCellFormat();
wfCols.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK);
wfCols.setVerticalAlignment(VerticalAlignment.CENTRE);
int colCount = 0;
// int colIndex = 0;
for (Iterator iterator = headers.iterator(); iterator.hasNext();) {
int rowCount = 5;
JSONObject header = (JSONObject) iterator.next();
if (!header.getBoolean("hidden")) {
// if (colIndex == 0) {// 第一列沒有值,不顯示
// colIndex++;
// continue;
// }
if (header.getInt("width") != 0) {
ws.setColumnView(colCount, header.getInt("width") / 6);// px-->cm
}
labelCols = new jxl.write.Label(colCount, rowCount, header.getString("colName"), wfCols);
ws.addCell(labelCols);
String preValue = null;
int preRowCount = rowCount;
for (Iterator iterator2 = rows.iterator(); iterator2.hasNext();) {
rowCount++;
JSONObject colValue = (JSONObject) iterator2.next();
String tempValue = null;
String headerId = header.getString("colId");
if (colValue.containsKey(headerId)) {
tempValue = colValue.getString(headerId);
}
String value = ((tempValue == null) || "null".equals(tempValue)) || "false".equals(tempValue) ? "" : tempValue;
if ("_routeId".equals(header.getString("colId"))) {// merge column name(hard code)
if (rowCount == 6) {
preRowCount = rowCount;
preValue = value;
}
if (!value.equals(preValue) && preValue != null) {
ws.mergeCells(colCount, preRowCount, colCount, rowCount - 1);
labelCols = new jxl.write.Label(colCount, preRowCount, preValue, wfCols);
ws.addCell(labelCols);
preRowCount = rowCount;
preValue = value;
}
if ((rowCount - 5) == rows.size()) {
ws.mergeCells(colCount, preRowCount, colCount, rowCount);
labelCols = new jxl.write.Label(colCount, preRowCount, value, wfCols);
ws.addCell(labelCols);
}
} else {
if (StringUtils.equals(headerId, "pollutionLevel")) {
if (StringUtils.isNotEmpty(value)) {
value = lotService.getPollutionLevel4Show(value);
}
}
labelCols = new jxl.write.Label(colCount, rowCount, value, wfCols);
ws.addCell(labelCols);
}
}
colCount++;
}
}
wwb.write();
} catch (Exception d) {
log.error(d);
} finally {
try {
if (wwb != null) {
wwb.close();
}
} catch (Exception e) {
log.error(e);
}
}
return os;
}
三、頁面
<fieldset id="fld3"><legend><mycim2:contentDisplay id="LBS_IMPORT_ENDTIME_INFO" default="Import End Time Info" /></legend>
<table width="100%">
<thead>
<tr align="center" class="myinnertable">
<td nowrap width="5%">NO</td>
<td nowrap width="5%"><mycim2:contentDisplay id="LBL_LOT_ID" default="Lot ID" /></td>
<%-- <td nowrap width="5%"><mycim2:contentDisplay id="LBL_ROUTE_SEQ" default="Route Seq." /></td>
<td nowrap width="5%"><mycim2:contentDisplay id="LBL_ROUTE_ID" default="Route ID"/></td>
<td nowrap width="5%"><mycim2:contentDisplay id="LBL_OPERATION_SEQ" default="Step Seq." /></td> --%>
<td nowrap width="5%"><mycim2:contentDisplay id="LBL_OPERATION_ID" default="Step ID"/></td>
<td nowrap width="5%"><mycim2:contentDisplay id="LBL_END_TIME" default="End Time"/></td>
<td nowrap width="10%"><mycim2:contentDisplay id="LBL_COMMENTS" default="Comments"/></td>
<td nowrap width="10%"><mycim2:contentDisplay id="LBL_INSTRUCTION_INFO" default="Instruction Info"/></td>
</tr>
<thead>
<tbody>
<logic:present name="impLotStepEndTimeList">
<logic:iterate id="item" name="impLotStepEndTimeList" indexId="seq">
<tr align="center" class="myinnertable2 implData">
<td nowrap class="myfield">
<mycim2:write name="item" property="NO" filter="true"/>
<input type='hidden' name='validateFlag' value='<mycim2:write name="item" property="validateFlag"/>'/>
</td>
<td nowrap class="myfield"><mycim2:write name="item" property="lotId" filter="true"/></td>
<%-- <td nowrap class="myfield"><mycim2:write name="item" property="routeSeq" filter="true"/></td>
<td nowrap class="myfield"><mycim2:write name="item" property="routeId" filter="true"/></td>
<td nowrap class="myfield"><mycim2:write name="item" property="stepSeq" filter="true"/></td> --%>
<td nowrap class="myfield"><mycim2:write name="item" property="stepId" filter="true"/></td>
<td nowrap class="myfield"><mycim2:write name="item" property="endTime" filter="true"/></td>
<td width="10%" class="myfield"><mycim2:write name="item" property="comments" filter="true"/></td>
<%-- <td width="15%" class="myfield"><mycim2:write name="item" property="createUser" filter="true"/></td> --%>
<td width="10%" class="myfield"><mycim2:write name="item" property="validateMsg" filter="true"/></td>
<%-- <td class="myfield" ><a href="javascript:doDelete('delete=Y&lotRrn=<mycim2:write name="item" property="lotRrn" filter="true"/>&endTimeRrn=<mycim2:write name="item" property="endTimeRrn" filter="true"/>')">
<img height=16 src="<%=request.getContextPath()%>/img/delete.gif" width=16 border=0></a></td> --%>
</tr>
</logic:iterate>
</logic:present>
</tbody>
</table>
</fieldset>
<br>
<table width="100%">
<tr>
<td>
<div align="center">
<input type="button" name="saveimp" value="<mycim2:contentDisplay id="LBS_SAVE" default="Save"/>" onClick="saveImp()">
<input type="button" name="reset" value="<mycim2:contentDisplay id="LBS_RESET" default="Reset"/>" onClick="clearImplData();">
<input type="button" name="back" value="<mycim2:contentDisplay id="LBS_BACK" default="Back"/>" onClick="goToURL('self', '<%=request.getContextPath()%>/lotstependtime.do?edit=1&nav=true')">
</div>
</td>
</tr>
</table>