⑴ java開發怎麼導入導出excel裡面信息內容
publicclassExcelExport{
/**
*默認每個sheet頁最多顯示的行數
*/
privatestaticfinalintsheet_rows=50000;
/**
*導出Excel文件
*
*@paramtitleList
*表頭信息
*@paramdataList
*表格數據
*@paramfileName
*導出文件完整名稱demo.xls
*@paramrequest
*@paramresponse
*@throwsIOException
*/
(List<String>titleList,
List<List<String>>dataList,StringfileName,
HttpServletRequestrequest,HttpServletResponseresponse)
throwsIOException{
HSSFWorkbookworkBook=exportDataToExcel(titleList,dataList);
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("UTF-8");
fileName=encodeFilename(fileName,request);
response.setHeader("Content-disposition","attachment;filename="+fileName);
workBook.write(response.getOutputStream());
response.getOutputStream().flush();
response.getOutputStream().close();
}
(Stringfilename,HttpServletRequestrequest){
Stringagent=request.getHeader("USER-AGENT");
try{
if((agent!=null)&&(0<=agent.indexOf("Firefox"))){
returnMimeUtility.encodeText(filename,"UTF-8","B");
}elseif((agent!=null)&&(0<=agent.indexOf("Chrome"))){
returnfilename=newString(filename.getBytes(),"ISO8859-1");
}
else{
if(agent!=null){
StringnewFileName=URLEncoder.encode(filename,"UTF-8");
newFileName=StringUtils.replace(newFileName,"+","%20");
if(newFileName.length()>150){
newFileName=newString(filename.getBytes("GB2312"),
"ISO8859-1");
newFileName=StringUtils.replace(newFileName,"",
"%20");
}
returnnewFileName;
}
}
}catch(Exceptionex){
returnfilename;
}
returnfilename;
}
(List<String>titleList,List<List<String>>dataList){
/*1.創建一個Excel文件*/
HSSFWorkbookworkbook=newHSSFWorkbook();
/*2.創建Excel的一個Sheet*/
HSSFSheetsheet=workbook.createSheet();
/*3.創建表頭凍結*/
sheet.createFreezePane(0,1);
/*4.設置列寬*/
for(inti=0;i<titleList.size();i++){
sheet.setColumnWidth(i,5000);
}
/*5.表頭字體*/
HSSFFontheadfont=workbook.createFont();
headfont.setFontName("宋體");
headfont.setFontHeightInPoints((short)12);//字體大小
headfont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
/*6.表頭樣式*/
HSSFCellStyleheadstyle=workbook.createCellStyle();
headstyle.setFont(headfont);
headstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//左右居中
//設置背景色為藍色
headstyle.setFillForegroundColor(HSSFColor.LIGHT_BLUE.index);
headstyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
/*7.普通單元格字體*/
HSSFFontfont=workbook.createFont();
font.setFontName("宋體");
font.setFontHeightInPoints((short)12);
/*8.普通單元格樣式*/
HSSFCellStylestyle=workbook.createCellStyle();
style.setFont(font);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);//左右居中
/*9.拼裝表頭*/
Iterator<String>titleRowIterator=titleList.iterator();
intcolumnIndex=0;
HSSFRowrow=sheet.createRow(0);
while(titleRowIterator.hasNext()){
StringcellValue=titleRowIterator.next();
HSSFCellcell=row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(headstyle);
columnIndex++;
cell=null;
}
/*10.組織表數據*/
Iterator<List<String>>rowIterator=dataList.iterator();
introwIndex=1;
while(rowIterator.hasNext()){
List<String>columnList=rowIterator.next();
row=sheet.createRow(rowIndex);
Iterator<String>columnIterator=columnList.iterator();
columnIndex=0;
while(columnIterator.hasNext()){
StringcellValue=columnIterator.next();
HSSFCellcell=row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(style);
cell=null;
columnIndex++;
}
row=null;
rowIndex++;
}
returnworkbook;
}
/**
*重載導出數據到Excel中
*@paramtitleList表頭
*@paramdataList表數據
*@paramamount每個sheet頁顯示行數
*@return
*/
(List<String>titleList,List<List<String>>dataList,intamount){
/*1.創建一個Excel文件*/
HSSFWorkbookworkbook=newHSSFWorkbook();
//校驗傳入的參數
if(titleList==null){
titleList=newArrayList<String>();
}
//無數據直接返回
if(dataList==null||dataList.size()==0){
returnworkbook;
}
//傳入數據不正確，按照默認條數顯示
if(amount>65535||amount<=0){
amount=sheet_rows;
}
//獲取sheet頁的數量
introw_num=0;
inty=dataList.size()%amount;
if(y==0){
row_num=dataList.size()/amount;
}else{
row_num=dataList.size()/amount+1;
}
/*表頭字體*/
HSSFFontheadfont=workbook.createFont();
headfont.setFontName("宋體");
headfont.setFontHeightInPoints((short)12);//字體大小
headfont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
/*表頭樣式*/
HSSFCellStyleheadstyle=workbook.createCellStyle();
headstyle.setFont(headfont);
headstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//左右居中
//設置背景色為藍色
headstyle.setFillForegroundColor(HSSFColor.LIGHT_BLUE.index);
headstyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
/*普通單元格字體*/
HSSFFontfont=workbook.createFont();
font.setFontName("宋體");
font.setFontHeightInPoints((short)12);
/*普通單元格樣式*/
HSSFCellStylestyle=workbook.createCellStyle();
style.setFont(font);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);//左右居中
//循環寫入每個sheet頁
for(inti=0;i<row_num;i++){
/*創建Excel的一個Sheet*/
HSSFSheetsheet=workbook.createSheet();
/*創建表頭凍結*/
sheet.createFreezePane(0,1);
/*設置列寬*/
for(intt=0;t<titleList.size();t++){
sheet.setColumnWidth(t,5000);
}
/*拼裝表頭*/
Iterator<String>titleRowIterator=titleList.iterator();
intcolumnIndex=0;
HSSFRowrow=sheet.createRow(0);
while(titleRowIterator.hasNext()){
StringcellValue=titleRowIterator.next();
HSSFCellcell=row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(headstyle);
columnIndex++;
cell=null;
}
/*組織表數據*/
introwIndex=1;
for(intj=amount*i;(j<amount*(i+1)&&j<dataList.size());j++){
List<String>columnList=dataList.get(j);
row=sheet.createRow(rowIndex);
Iterator<String>columnIterator=columnList.iterator();
columnIndex=0;
while(columnIterator.hasNext()){
StringcellValue=columnIterator.next();
HSSFCellcell=row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(style);
cell=null;
columnIndex++;
}
row=null;
rowIndex++;
}
}
returnworkbook;
}
/**
*重載導出Excel功能,新增一項amount每個sheet導出記錄行數
*@paramtitleList
*@paramdataList
*@paramfileName
*@paramamount行數如果小於等於0或大於65535則按照默認顯示
*@paramrequest
*@paramresponse
*@throwsIOException
*/
(List<String>titleList,
List<List<String>>dataList,StringfileName,intamount,
HttpServletRequestrequest,HttpServletResponseresponse)
throwsIOException{
HSSFWorkbookworkBook=exportDataToExcel(titleList,dataList,amount);
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("UTF-8");
fileName=encodeFilename(fileName,request);
response.setHeader("Content-disposition","attachment;filename="+fileName);
workBook.write(response.getOutputStream());
response.getOutputStream().flush();
response.getOutputStream().close();
}
}
說明：main方法里的第一個參數為要導出的表頭信息，
第二個參數為數據信息，
第三個參數設置文件名，設置好以後直接調用就可以導出Excle了;
導入就是把文件存到伺服器，可用Mogodb等資料庫存儲，以下是讀取已存根據存儲的文件id解析Excle數據的大致過程：
POIFSFileSystemfs=null;
if(!StringUtils.isBlank(fileId)){
fs=newPOIFSFileSystem(newByteArrayInputStream(
//傳入對應的文件對象
MongoFileUtil.readFile(fileId)));
}
//構造XSSFWorkbook對象，filePath傳入文件路徑
HSSFWorkbookxwb=newHSSFWorkbook(fs);
//讀取第一個sheet
HSSFSheetsheet=xwb.getSheetAt(0);
for(inti=sheet.getFirstRowNum()+1;i<sheet.getPhysicalNumberOfRows();i++){
//解析每行的數據
HSSFRowsingleRow=sheet.getRow(i);
//解析每個單元格數據
singleRow.getCell(0).setCellType(Cell.CELL_TYPE_STRING);
StringcellValue=singleRow.getCell(0).getStringCellValue();
}
⑵ java 導出 Excel 中文亂碼
HSSFCellcsCell=row.createCell((short)1);
csCell.setEncoding(HSSFCell.ENCODING_UTF_16);//設置襲cell編碼解決中文高位位元組截斷
csCell.setCellValue("中文測試");//設置中文
⑶ java生成excel命名為什麼不能為中文
沒有太多原因，POI就是如此；再說導出的EXCEL文件名的中文亂碼問題， 導出時代碼如下：
.....
this.getResponse().reset();
this.getResponse().setContentType("application/msexcel");
this.getResponse().setHeader("Content-Disposition", "inline;filename=中文名.xls");
try {
em.getExcelMutliIO(this.getResponse().getOutputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
這個時候導出去時，文件名會為亂碼，解決的辦法如下,在你的代碼增加下列函數：
public static String toUtf8String(String s){
StringBuffer sb = new StringBuffer();
for (int i=0;i<s.length();i++){
char c = s.charAt(i);
if (c >= 0 && c <= 255){sb.append(c);}
else{
byte[] b;
try { b = Character.toString(c).getBytes("utf-8");}
catch (Exception ex) {
System.out.println(ex);
b = new byte[0];
}
for (int j = 0; j < b.length; j++) {
int k = b[j];
if (k < 0) k += 256;
sb.append("%" + Integer.toHexString(k).toUpperCase());
}
}
}
return sb.toString();
}
然後在導出時，對文件名引用該函數，代碼如下：
this.getResponse().setHeader("Content-Disposition", "inline;filename=" +toUtf8String("中文文件名.xls"));
⑷ 如何用Java導出數據存到excel裡面
java中jxl導出數據到excel的例子
import jxl.*;
import jxl.write.*;
import java.io.*;
import java.io.File.*;
import java.util.*;
public class excel
{
public static void main(String[] args)
{
String targetfile = "c:/out.xls";//輸出的excel文件名
String worksheet = "List";//輸出的excel文件工作表名
String[] title = {"ID","NAME","DESCRIB"};//excel工作表的標題
WritableWorkbook workbook;
try
{
//創建可寫入的工作薄,運行生成的文件在tomcat/bin下
//workbook = Workbook.createWorkbook(new File("output.xls"));
System.out.println("begin");
OutputStream os=new FileOutputStream(targetfile);
workbook=Workbook.createWorkbook(os);
WritableSheet sheet = workbook.createSheet(worksheet, 0); //添加第一個工作表
//WritableSheet sheet1 = workbook.createSheet("MySheet1", 1); //可添加第二個工作
/*
jxl.write.Label label = new jxl.write.Label(0, 2, "A label record"); //put a label in cell A3, Label(column,row)
sheet.addCell(label);
*/
jxl.write.Label label;
for (int i=0; i<title.length; i++)
{
//Label(列號,行號 ,內容 )
label = new jxl.write.Label(i, 0, title[i]); //put the title in row1
sheet.addCell(label);
}
//下列添加的對字體等的設置均調試通過，可作參考用
//添加數字
jxl.write.Number number = new jxl.write.Number(3, 4, 3.14159); //put the number 3.14159 in cell D5
sheet.addCell(number);
//添加帶有字型Formatting的對象
jxl.write.WritableFont wf = new jxl.write.WritableFont(WritableFont.TIMES,10,WritableFont.BOLD,true);
jxl.write.WritableCellFormat wcfF = new jxl.write.WritableCellFormat(wf);
jxl.write.Label labelCF = new jxl.write.Label(4,4,"文本",wcfF);
sheet.addCell(labelCF);
//添加帶有字體顏色,帶背景顏色 Formatting的對象
jxl.write.WritableFont wfc = new jxl.write.WritableFont(WritableFont.ARIAL,10,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED);
jxl.write.WritableCellFormat wcfFC = new jxl.write.WritableCellFormat(wfc);
wcfFC.setBackground(jxl.format.Colour.BLUE);
jxl.write.Label labelCFC = new jxl.write.Label(1,5,"帶顏色",wcfFC);
sheet.addCell(labelCFC);
//添加帶有formatting的Number對象
jxl.write.NumberFormat nf = new jxl.write.NumberFormat("#.##");
jxl.write.WritableCellFormat wcfN = new jxl.write.WritableCellFormat(nf);
jxl.write.Number labelNF = new jxl.write.Number(1,1,3.1415926,wcfN);
sheet.addCell(labelNF);
//3.添加Boolean對象
jxl.write.Boolean labelB = new jxl.write.Boolean(0,2,false);
sheet.addCell(labelB);
//4.添加DateTime對象
jxl.write.DateTime labelDT = new jxl.write.DateTime(0,3,new java.util.Date());
sheet.addCell(labelDT);
//添加帶有formatting的DateFormat對象
jxl.write.DateFormat df = new jxl.write.DateFormat("ddMMyyyyhh:mm:ss");
jxl.write.WritableCellFormat wcfDF = new jxl.write.WritableCellFormat(df);
jxl.write.DateTime labelDTF = new jxl.write.DateTime(1,3,new java.util.Date(),wcfDF);
sheet.addCell(labelDTF);
//和賓單元格
//sheet.mergeCells(int col1,int row1,int col2,int row2);//左上角到右下角
sheet.mergeCells(4,5,8,10);//左上角到右下角
wfc = new jxl.write.WritableFont(WritableFont.ARIAL,40,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.GREEN);
jxl.write.WritableCellFormat wchB = new jxl.write.WritableCellFormat(wfc);
wchB.setAlignment(jxl.format.Alignment.CENTRE);
labelCFC = new jxl.write.Label(4,5,"單元合並",wchB);
sheet.addCell(labelCFC); //
//設置邊框
jxl.write.WritableCellFormat wcsB = new jxl.write.WritableCellFormat();
wcsB.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.THICK);
labelCFC = new jxl.write.Label(0,6,"邊框設置",wcsB);
sheet.addCell(labelCFC);
workbook.write();
workbook.close();
}catch(Exception e)
{
e.printStackTrace();
}
System.out.println("end");
Runtime r=Runtime.getRuntime();
Process p=null;
//String cmd[]={"notepad","exec.java"};
String cmd[]={"C:\\Program Files\\Microsoft Office\\Office\\EXCEL.EXE","out.xls"};
try{
p=r.exec(cmd);
}
catch(Exception e){
System.out.println("error executing: "+cmd[0]);
}
}
}
⑸ java打開excel亂碼
HSSFWorkbook workbook = new HSSFWorkbook();//創建EXCEL文件
HSSFSheet sheet= workbook.createSheet(sheetName); //創建工作表
這樣在用英文名作為工作表名是沒問題的，但如果sheetName是中文字元，就會出現亂碼，解決的方法如下代碼：
HSSFSheet sheet= workbook.createSheet();
workbook.setSheetName(0, sheetName,(short)1); //這里(short)1是解決中文亂碼的關鍵；而第一個參數是工作表的索引號。
沒有太多原因，POI就是如此；再說導出的EXCEL文件名的中文亂碼問題， 導出時代碼如下：
.....
this.getResponse().reset();
this.getResponse().setContentType("application/msexcel");
this.getResponse().setHeader("Content-Disposition", "inline;filename=中文名.xls");
try {
em.getExcelMutliIO(this.getResponse().getOutputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
這個時候導出去時，文件名會為亂碼，解決的辦法如下,在你的代碼增加下列函數：
public static String toUtf8String (String s){
StringBuffer sb = new StringBuffer();
for (int i=0;i<s.length();i++){
char c = s.charAt(i);
if (c >= 0 && c <= 255){sb.append(c);}
else{
byte[] b;
try { b = Character.toString(c).getBytes("utf-8");}
catch (Exception ex) {
System.out.println(ex);
b = new byte[0];
}
for (int j = 0; j < b.length; j++) {
int k = b[j];
if (k < 0) k += 256;
sb.append("%" + Integer.toHexString(k).toUpperCase());
}
}
}
return sb.toString();
}
然後在導出時，對文件名引用該函數，代碼如下：
this.getResponse().setHeader("Content-Disposition", "inline;filename=" +toUtf8String("中文文件名.xls"));
⑹ 求高手解決Java做導出excel時出現的中文亂碼，包括文件名好內容中的中文 String headerStr = "13621
編碼格式統統用UTF-8
⑺ java怎麼導出excel表格
通過這個例子，演示以下如何用java生成excel文件：
import org.apache.poi.hssf.usermodel.*;
import java.io.FileOutputStream;
import java.io.IOException;
publicclass CreateCells
{
publicstaticvoid main(String[] args)
throws IOException
{
HSSFWorkbook wb = new HSSFWorkbook();//建立新HSSFWorkbook對象
HSSFSheet sheet = wb.createSheet("new sheet");//建立新的sheet對象
// Create a row and put some cells in it. Rows are 0 based.
HSSFRow row = sheet.createRow((short)0);//建立新行
// Create a cell and put a value in it.
HSSFCell cell = row.createCell((short)0);//建立新cell
cell.setCellValue(1);//設置cell的整數類型的值
// Or do it on one line.
row.createCell((short)1).setCellValue(1.2);//設置cell浮點類型的值
row.createCell((short)2).setCellValue("test");//設置cell字元類型的值
row.createCell((short)3).setCellValue(true);//設置cell布爾類型的值
HSSFCellStyle cellStyle = wb.createCellStyle();//建立新的cell樣式
cellStyle.setDataFormat(HSSFDataFormat.getFormat("m/d/yy h:mm"));//設置cell樣式為定製的日期格式
HSSFCell dCell =row.createCell((short)4);
dCell.setCellValue(new Date());//設置cell為日期類型的值
dCell.setCellStyle(cellStyle); //設置該cell日期的顯示格式
HSSFCell csCell =row.createCell((short)5);
csCell.setEncoding(HSSFCell.ENCODING_UTF_16);//設置cell編碼解決中文高位位元組截斷
csCell.setCellValue("中文測試_Chinese Words Test");//設置中西文結合字元串
row.createCell((short)6).setCellType(HSSFCell.CELL_TYPE_ERROR);//建立錯誤cell
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
}
}
⑻ 如何在java中導入導出excel
使旅塵用談鎮做含衡 I/O流
http://www.cnblogs.com/wuxinrui/archive/2011/03/20/1989326.html
⑼ java poi導出excel
用spire.xls.jar也可以導出excel,代碼更簡單
import com.spire.xls.ExcelVersion;
import com.spire.xls.Workbook;
import com.spire.xls.Worksheet;
public class InsertArray {
public static void main(String[] args) {
//創建Workbook對象
Workbook wb = new Workbook();
//獲取第一張工作表
Worksheet sheet = wb.getWorksheets().get(0);
//定義一維數據
String[] oneDimensionalArray = new String[]{"蘋果", "梨子", "葡萄", "香蕉"};
//將數組從指定單個格開始寫入工作表，true表示縱向寫入，設置為false為橫向寫入
sheet.insertArray(oneDimensionalArray, 1, 1, true);
//定義二維數組
String[][] twoDimensionalArray = new String[][]{
{"姓名", "年齡", "性別", "學歷"},
{"小張", "25", "男", "本科"},
{"小王", "24", "男", "本科"},
{"小李", "26", "女", "本科"}
};
//從指定單元格開始寫入二維數組到工作表
sheet.insertArray(twoDimensionalArray, 1, 3);
//保存文檔
wb.saveToFile("InsertArrays.xlsx", ExcelVersion.Version2016);
}
}
⑽ java端導出Excel表格。
可以使用poi來實現導出execl表格或者通過io流實現導出execl表格，但是poi相對來說更方便
實例如下：
try{
HSSFWorkbook workbook = new HSSFWorkbook(); // 創建工作簿對象
HSSFSheet sheet = workbook.createSheet(title); // 創建工作表
// 產生表格標題行
HSSFRow rowm = sheet.createRow(0);
HSSFCell cellTiltle = rowm.createCell(0);
//sheet樣式定義【getColumnTopStyle()/getStyle()均為自定義方法 - 在下面 - 可擴展】
HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook);//獲取列頭樣式對象
HSSFCellStyle style = this.getStyle(workbook); //單元格樣式對象
sheet.addMergedRegion(new CellRangeAddress(0, 1, 0, (rowName.length-1)));
cellTiltle.setCellStyle(columnTopStyle);
cellTiltle.setCellValue(title);
// 定義所需列數
int columnNum = rowName.length;
HSSFRow rowRowName = sheet.createRow(2); // 在索引2的位置創建行(最頂端的行開始的第二行)
// 將列頭設置到sheet的單元格中
for(int n=0;n<columnNum;n++){
HSSFCell cellRowName = rowRowName.createCell(n); //創建列頭對應個數的單元格
cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); //設置列頭單元格的數據類型
HSSFRichTextString text = new HSSFRichTextString(rowName[n]);
cellRowName.setCellValue(text); //設置列頭單元格的值
cellRowName.setCellStyle(columnTopStyle); //設置列頭單元格樣式
}
//將查詢出的數據設置到sheet對應的單元格中
for(int i=0;i<dataList.size();i++){
Object[] obj = dataList.get(i);//遍歷每個對象
HSSFRow row = sheet.createRow(i+3);//創建所需的行數
for(int j=0; j<obj.length; j++){
HSSFCell cell = null; //設置單元格的數據類型
if(j == 0){
cell = row.createCell(j,HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellValue(i+1);
}else{
cell = row.createCell(j,HSSFCell.CELL_TYPE_STRING);
if(!"".equals(obj[j]) && obj[j] != null){
cell.setCellValue(obj[j].toString()); //設置單元格的值
}
}
cell.setCellStyle(style); //設置單元格樣式
}
}
//讓列寬隨著導出的列長自動適應
for (int colNum = 0; colNum < columnNum; colNum++) {
int columnWidth = sheet.getColumnWidth(colNum) / 256;
for (int rowNum = 0; rowNum < sheet.getLastRowNum(); rowNum++) {
HSSFRow currentRow;
//當前行未被使用過
if (sheet.getRow(rowNum) == null) {
currentRow = sheet.createRow(rowNum);
} else {
currentRow = sheet.getRow(rowNum);
}
if (currentRow.getCell(colNum) != null) {
HSSFCell currentCell = currentRow.getCell(colNum);
if (currentCell.getCellType() == HSSFCell.CELL_TYPE_STRING) {
int length = currentCell.getStringCellValue().getBytes().length;
if (columnWidth < length) {
columnWidth = length;
}
}
}
}
if(colNum == 0){
sheet.setColumnWidth(colNum, (columnWidth-2) * 256);
}else{
sheet.setColumnWidth(colNum, (columnWidth+4) * 256);
}
}
if(workbook !=null){
try
{
String fileName = "Excel-" + String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xls";
String headStr = "attachment; filename=\"" + fileName + "\"";
response = getResponse();
response.setContentType("APPLICATION/OCTET-STREAM");
response.setHeader("Content-Disposition", headStr);
OutputStream out = response.getOutputStream();
workbook.write(out);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}catch(Exception e){
e.printStackTrace();
}
}