java數據導出到excel
⑴ java怎麼導出excel
/**
*負責數據導入到EXCEL
*
* @param realPath
* EXCEL表格存放的絕對路徑
* @param sheetname
*
* @param xLocation
* EXCEL表格的行索引，從1開始
* @param yLocation
* EXCEL表格的列索引，從1開始
* @param value
* 需要導入的數據
*
*/
public void modifyExcel(String realPath,String sheetname,int xLocaion,int yLocation,String value){
POIFSFileSystem fs=null;
HSSFWorkbook wb=null;
try {
File file=new File(realPath);
if(file.exists()){
fs = new POIFSFileSystem(new FileInputStream(realPath));
wb=new HSSFWorkbook(fs);
HSSFSheet s=wb.getSheetAt(0);
//函數處理時橫縱坐標從索引0開始
HSSFRow row=s.getRow(xLocaion-1);
HSSFCell cell=null;
if(row!=null){
cell=row.getCell(yLocation-1);
if(cell==null){
cell=row.createCell(yLocation-1);
}
}else{
row=s.createRow(xLocaion-1);
cell=row.createCell(yLocation-1);
}
cell.setCellValue(value);
}else{
wb=new HSSFWorkbook();
HSSFSheet s=wb.createSheet();
wb.setSheetName(0, sheetname);
HSSFRow row=s.createRow(xLocaion-1);
HSSFCell cell=row.createCell(yLocation-1);
cell.setCellValue(value);
}
FileOutputStream fos=new FileOutputStream(realPath);
wb.write(fos);
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
第二種就是運用了對象，以對象為單位寫入數據，即一個對象的所有屬性在一行列出，有多少個對象就有多少行，此方法比較適用於個人信息導出之類的應用，至於導出屬性的順序問題在導出對象的實體類內部改動下即可：
/**
*負責數據導入到EXCEL
*
* @param realPath
* EXCEL表格存放的絕對路徑
* @param sheetname
*
* @param users
* 需要導出到excel表的對象數組
*/
public void outputExcel(String realPath,String sheetname,UserModel[] users){
FileOutputStream fos;
try {
File file=new File(realPath);
fos = new FileOutputStream(file, true);
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet s=wb.createSheet();
wb.setSheetName(0, sheetname);
HSSFRow[] rows=new HSSFRow[users.length];
HSSFCell[][] cells=new HSSFCell[20][20];
for (int i=0; i<users.length;i++) { // 相當於excel表格中的總行數
PropertyDescriptor[] descriptors=(users[i]);
rows[i]=s.createRow(i);
for (int j=0; descriptors!=null&&j<descriptors.length;j++) {
java.lang.reflect.Method readMethod = descriptors[j]
.getReadMethod();
cells[i][j]=rows[i].createCell(j);
Object value=readMethod.invoke(users[i], null);
cells[i][j].setCellValue(value.toString());
}
}
wb.write(fos);
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
⑵ 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Excel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]);
}
}
}
⑶ java中輸入輸出流如何把數據輸出為Excel表格形式
實現代碼如下：
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();
}
}
⑷ java數據怎麼導出到excel
如果是導出成表格，使用,分隔的csv文件就方便，，，，，，，否則，使用POI導出成EXCEL格式的
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⑸ 如何把java查詢出的內容導入到excel表格
java查詢出的內容導入到excel表格
/**導出數據為XLS格式
* @param fos
* @param bo
*/
public void writeExcelBo(FileOutputStream fos, java.util.Vector ve)
{
jxl.write.WritableWorkbook wwb;
try
{
wwb= Workbook.createWorkbook(fos);
jxl.write.WritableSheet ws= wwb.createSheet("booksheet", 10);
ws.addCell(new jxl.write.Label(0, 1, "書目ID"));
ws.addCell(new jxl.write.Label(1, 1, "ISBN"));
ws.addCell(new jxl.write.Label(2, 1, "定價"));
ws.addCell(new jxl.write.Label(3, 1, "書名"));
ws.addCell(new jxl.write.Label(4, 1, "原書名"));
ws.addCell(new jxl.write.Label(5, 1, "副題名"));
ws.addCell(new jxl.write.Label(6, 1, "著者"));
ws.addCell(new jxl.write.Label(7, 1, "譯者"));
ws.addCell(new jxl.write.Label(8, 1, "版次"));
ws.addCell(new jxl.write.Label(9, 1, "出版地"));
ws.addCell(new jxl.write.Label(10, 1, "出版社"));
ws.addCell(new jxl.write.Label(11, 1, "出版日期"));
ws.addCell(new jxl.write.Label(12, 1, "頁數"));
ws.addCell(new jxl.write.Label(13, 1, "書高"));
ws.addCell(new jxl.write.Label(14, 1, "裝幀"));
ws.addCell(new jxl.write.Label(15, 1, "叢書名"));
ws.addCell(new jxl.write.Label(16, 1, "一般性附註項"));
ws.addCell(new jxl.write.Label(17, 1, "簡介"));
ws.addCell(new jxl.write.Label(18, 1, "主題詞"));
ws.addCell(new jxl.write.Label(19, 1, "中圖法分類"));
ws.addCell(new jxl.write.Label(20, 1, "更新日期"));
ws.addCell(new jxl.write.Label(21, 1, "本數"));
book=new Book[ve.size()];
for (int i= 0; i < ve.size(); i++)
{
book[i]= (Book)ve.get(i);
ws.addCell(new jxl.write.Label(0, i + 2, "" + book[i].getBookId()));
ws.addCell(new jxl.write.Label(1, i + 2, book[i].getIsbn()));
ws.addCell(new jxl.write.Label(2, i + 2, "" + book[i].getPrice()));
ws.addCell(new jxl.write.Label(3, i + 2, book[i].getBookTitle()));
ws.addCell(new jxl.write.Label(4, i + 2, book[i].getOldFilename()));
ws.addCell(new jxl.write.Label(5, i + 2, book[i].getSubTitle()));
ws.addCell(new jxl.write.Label(6, i + 2, book[i].getWriter()));
ws.addCell(new jxl.write.Label(7, i + 2, book[i].getTranscribe()));
ws.addCell(new jxl.write.Label(8, i + 2, "" + book[i].getVersion()));
ws.addCell(new jxl.write.Label(9, i + 2, book[i].getPublishCity()));
ws.addCell(new jxl.write.Label(10, i + 2, book[i].getPublisher()));
ws.addCell(new jxl.write.Label(11, i + 2, book[i].getPublishDate().toString()));
ws.addCell(new jxl.write.Label(12, i + 2, "" + book[i].getPage()));
ws.addCell(new jxl.write.Label(13, i + 2, "" + book[i].getHight()));
ws.addCell(new jxl.write.Label(14, i + 2, book[i].getInstall()));
ws.addCell(new jxl.write.Label(15, i + 2, book[i].getSeries()));
ws.addCell(new jxl.write.Label(16, i + 2, book[i].getNotes()));
ws.addCell(new jxl.write.Label(17, i + 2, book[i].getPrecisnotes()));
ws.addCell(new jxl.write.Label(18, i + 2, book[i].getSubject()));
ws.addCell(new jxl.write.Label(19, i + 2, book[i].getCls().replaceAll("_", "")));
ws.addCell(new jxl.write.Label(20, i + 2, book[i].getUpdatedate().toString()));
ws.addCell(new jxl.write.Label(21, i + 2, "0"));
}
jxl.write.WritableFont wfc=
new jxl.write.WritableFont(
WritableFont.ARIAL,
255,
WritableFont.BOLD,
false,
UnderlineStyle.NO_UNDERLINE,
jxl.format.Colour.BLACK);
jxl.write.WritableCellFormat wcfFC= new jxl.write.WritableCellFormat(wfc);
ws.addCell(new jxl.write.Label(0, 0, "為保證您提交定單的穩定和正確，導入定單時候請勿更改此表格式（請勿更改書目ID,訂購本數自行添加！）"));
wwb.write();
//關閉Excel工作薄對象
wwb.close();
} catch (IOException e)
{} catch (RowsExceededException e)
{} catch (WriteException e)
{}
}
//導入EXCEL
if (f.getName().indexOf(".xls") > 0)
{
try
{
fis= new FileInputStream(f);
BookBean bob= new BookBean();
UserBean usb= new UserBean();
jxl.Workbook rwb= Workbook.getWorkbook(fis);
jxl.Sheet sh= rwb.getSheet(0);
int rowCount= sh.getRows();
SimpleDateFormat sdf= new SimpleDateFormat("dd/MM/yyyy");
book= new Book[rowCount - 1];
for (int i= 1; i < rowCount; i++)
{
book[i - 1]= new Book();
jxl.Cell[] ce= sh.getRow(i);
book[i - 1].setIsbn(ce[0].getContents().toString());
book[i - 1].setSeries(ce[1].getContents().toString());
book[i - 1].setBookTitle(ce[2].getContents().toString());
book[i - 1].setWriter(ce[3].getContents().toString());
book[i - 1].setTranscribe(ce[4].getContents().toString());
book[i - 1].setPublisher(ce[5].getContents().toString());
book[i - 1].setPublishDate(sdf.parse(ce[6].getContents().toString(), new ParsePosition(0)));
book[i-1].setVersion(Integer.parseInt(ce[7].getContents().toString()));
book[i-1].setPage(Integer.parseInt(ce[8].getContents().toString()));
book[i-1].setCls(ce[9].getContents().toString());
book[i-1].setPrecisnotes(ce[10].getContents().toString());
book[i-1].setInstall(ce[11].getContents().toString());
book[i-1].setPrice(Float.parseFloat(ce[12].getContents().toString()));
book[i-1].setUserid(usb.getUser().getUserid());
getVector().addElement(book[i - 1]);
}
rwb.close();
fis.close();
} catch (FileNotFoundException e)
{} catch (BiffException e)
{} catch (IOException e)
{} catch (NumberFormatException e)
{
ShowMessage("數據導入失敗，請按照本軟體要求的EXCEL格式導入定單");
}
}
⑹ java如何另存導出Excel
1./**
* 出險信息導出到excel（fc）
* @param mapping
* @param form
* @param request
* @param response
* @throws IOException
*/
public void exportActoExcel(ActionMapping mapping, ActionForm form ,
HttpServletRequest request,HttpServletResponse response) throws IOException {
ActionErrors errors = new ActionErrors();
AcExcelBusi acBusi = new AcExcelBusi();
AccidentRecordForm arForm= (AccidentRecordForm) form;
AccidentRecordBusi arBusi = new AccidentRecordBusi();
// ////查詢條件
FwUsers sessUser = (FwUsers)request.getSession().getAttribute(ConstValues.SESS_USER_MANAGE);
Map<String,Object> cisMap = arBusi.getTodoPageList(arForm,sessUser,errors);
List AcList = null;// 當頁的記錄
if (null != cisMap) {
AcList = (List) cisMap.get("list");
}
//導出excel的路徑、文件名
String uuid = UUID.create("exp");
String path = request.getSession().getServletContext().getRealPath("/") + ConstValues.EXP_PATH_EXCEL + uuid + ".xls";
acBusi.exprotAcExcel(AcList, path,request);
response.sendRedirect("stdownload.jsp?path=" + path );
}
⑺ java導出數據到excel的幾種方法的比較
Excel的兩種導出入門方法（JAVA與JS）
最近在做一個小項目作為練手，其中使用到了導出到Excel表格，一開始做的是使用JAVA的POI導出的，但因為我的數據是爬蟲爬出來的，數據暫時並不保存在資料庫或後台，所以直接顯示在HTML的table，需要下載時又要將數據傳回後台然後生成Excel文件，最後再從伺服器下載到本地，過程幾度經過網路傳輸，感覺比較耗時與浪費性能，於是想著在HTML中的Table直接導到Excel中節約資源
JAVA導出EXCEL(.xls)
導出Excel用的插件是apache的poi.jar，maven地址如下
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.17</version></dependency>
1. 簡單應用
先來個簡化無樣式的Excel導出，由於我的數據存在JSON中，所以形參是JSONArray，朋友們根據自己的實際數據類型（Map，List，Set等）傳入即可 ，代碼如下
/**
* 創建excel並填入數據
* @author LiQuanhui
* @date 2017年11月24日 下午5:25:13
* @param head 數據頭
* @param body 主體數據
* @return HSSFWorkbook
*/
public static HSSFWorkbook expExcel(JSONArray head, JSONArray body) { //創建一個excel工作簿
HSSFWorkbook workbook = new HSSFWorkbook(); //創建一個sheet工作表
HSSFSheet sheet = workbook.createSheet("學生信息");
//創建第0行表頭，再在這行里在創建單元格，並賦值
HSSFRow row = sheet.createRow(0);
HSSFCell cell = null; for (int i = 0; i < head.size(); i++) {
cell = row.createCell(i);
cell.setCellValue(head.getString(i));//設置值
}
//將主體數據填入Excel中
for (int i = 0, isize = body.size(); i < isize; i++) {
row = sheet.createRow(i + 1);
JSONArray stuInfo = body.getJSONArray(i); for (int j = 0, jsize = stuInfo.size(); j < jsize; j++) {
cell = row.createCell(j);
cell.setCellValue(stuInfo.getString(j));//設置值
}
} return workbook;
}
創建好Excel對象並填好值後（就是得到workbook），就是將這個對象以文件流的形式輸出到本地上去，代碼如下
/**
* 文件輸出
* @author LiQuanhui
* @date 2017年11月24日 下午5:26:23
* @param workbook 填充好的workbook
* @param path 存放的位置
*/
public static void outFile(HSSFWorkbook workbook,String path) {
OutputStream os=null; try {
os = new FileOutputStream(new File(path));
workbook.write(os);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
至此Excel的導出其實已經做完了。
2. 添加樣式後導出
但通常這並不能滿足我們的需求，因為通常是需要設置Excel的一些樣式的，如字體、居中等等，設置單元格樣式主要用到這個類（HSSFCellStyle）
HSSFCellStyle cellStyle = workbook.createCellStyle();
現在說說HSSFCellStyle都能幹些什麼
HSSFCellStyle cellStyle = workbook.createCellStyle();//創建單元格樣式對象1.設置字體
HSSFFont font = workbook.createFont(); //font.setFontHeight((short)12);//這個設置字體會很大
font.setFontHeightInPoints((short)12);//這才是我們平常在Excel設置字體的值
font.setFontName("黑體");//字體：宋體、華文行楷等等
cellStyle.setFont(font);//將該字體設置進去2.設置對齊方式
cellStyle.setAlignment(horizontalAlignment);//horizontalAlignment參考下面給出的參數
//以下是最常用的三種對齊分別是居中，居左，居右，其餘的寫代碼的時候按提示工具查看即可
HorizontalAlignment.CENTER
HorizontalAlignment.LEFT
HorizontalAlignment.RIGHT3.設置邊框
cellStyle.setBorderBottom(border); // 下邊框
cellStyle.setBorderLeft(border);// 左邊框
cellStyle.setBorderTop(border);// 上邊框
cellStyle.setBorderRight(border);// 右邊框
//border的常用參數如下
BorderStyle.NONE 無邊框
BorderStyle.THIN 細邊框
BorderStyle.MEDIUM 中等粗邊框
BorderStyle.THICK 粗邊框//其餘的我也描述不清是什麼形狀，有興趣的到時可以直接測試
在經過一系列的添加樣式之後，最後就會給單元格設置樣式
cell.setCellStyle(cellStyle);
3. 自動調整列寬
sheet.autoSizeColumn(i);//i為第幾列，需要全文都單元格居中的話，需要遍歷所有的列數
4. 完整的案例
public class ExcelUtils { /**
* 創建excel並填入數據
* @author LiQuanhui
* @date 2017年11月24日 下午5:25:13
* @param head 數據頭
* @param body 主體數據
* @return HSSFWorkbook
*/
public static HSSFWorkbook expExcel(JSONArray head, JSONArray body) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("學生信息");
HSSFRow row = sheet.createRow(0);
HSSFCell cell = null;
HSSFCellStyle cellStyle = workbook.createCellStyle();
setBorderStyle(cellStyle, BorderStyle.THIN);
cellStyle.setFont(setFontStyle(workbook, "黑體", (short) 14));
cellStyle.setAlignment(HorizontalAlignment.CENTER);
for (int i = 0; i < head.size(); i++) {
cell = row.createCell(i);
cell.setCellValue(head.getString(i));
cell.setCellStyle(cellStyle);
}
HSSFCellStyle cellStyle2 = workbook.createCellStyle();
setBorderStyle(cellStyle2, BorderStyle.THIN);
cellStyle2.setFont(setFontStyle(workbook, "宋體", (short) 12));
cellStyle2.setAlignment(HorizontalAlignment.CENTER); for (int i = 0, isize = body.size(); i < isize; i++) {
row = sheet.createRow(i + 1);
JSONArray stuInfo = body.getJSONArray(i); for (int j = 0, jsize = stuInfo.size(); j < jsize; j++) {
cell = row.createCell(j);
cell.setCellValue(stuInfo.getString(j));
cell.setCellStyle(cellStyle2);
}
} for (int i = 0, isize = head.size(); i < isize; i++) {
sheet.autoSizeColumn(i);
} return workbook;
} /**
* 文件輸出
* @author LiQuanhui
* @date 2017年11月24日 下午5:26:23
* @param workbook 填充好的workbook
* @param path 存放的位置
*/
public static void outFile(HSSFWorkbook workbook,String path) {
OutputStream os=null; try {
os = new FileOutputStream(new File(path));
workbook.write(os);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
} /**
* 設置字體樣式
* @author LiQuanhui
* @date 2017年11月24日 下午3:27:03
* @param workbook 工作簿
* @param name 字體類型
* @param height 字體大小
* @return HSSFFont
*/
private static HSSFFont setFontStyle(HSSFWorkbook workbook, String name, short height) {
HSSFFont font = workbook.createFont();
font.setFontHeightInPoints(height);
font.setFontName(name); return font;
} /**
* 設置單元格樣式
* @author LiQuanhui
* @date 2017年11月24日 下午3:26:24
* @param workbook 工作簿
* @param border border樣式
*/
private static void setBorderStyle(HSSFCellStyle cellStyle, BorderStyle border) {
cellStyle.setBorderBottom(border); // 下邊框
cellStyle.setBorderLeft(border);// 左邊框
cellStyle.setBorderTop(border);// 上邊框
cellStyle.setBorderRight(border);// 右邊框
}
}
POI的功能其實還是很強大的，這里只介紹了Excel的一丁點皮毛給入門的查看，如果想對Excel進行更多的設置可以查看下面的這篇文章，有著大量的使用說明。
空谷幽瀾的POI使用詳解
JS導出EXCEL(.xls)
java的Excel導出提供了強大的功能，但也對伺服器造成了一定資源消耗，若能使用客戶端的資源那真是太好了
1. 簡單應用
JS的導出Excel非常簡單，只需要引用Jquery和tableExport.js並設置一個屬性即可
<script src="<%=basePath%>/static/js/tableExport.js" type="text/javascript"></script><script type="text/javascript">
function exportExcelWithJS(){ //獲取要導出Excel的表格對象並設置tableExport方法，設置導出類型type為excel
$('#tableId').tableExport({ type:'excel'
});
}</script><button class="btn btn-primary" type="button" style="float: right;" onclick="exportExcelWithJS()">下載本表格</button>
JS的導出就完成了，是不是特別簡單
2. 進階應用
但上面僅僅是個簡單的全表無樣式的導出
這tableExport.js還有一些其他功能，忽略行，忽略列，設置樣式等，屬性如下
<script type="text/javascript">
function exportExcelWithJS(){ //獲取要導出Excel的表格對象並設置tableExport方法，設置導出類型type為excel
$('#tableId').tableExport({ type:'excel',//導出為excel
fileName:'2017工資表',//文件名
worksheetName:'11月工資',//sheet表的名字
ignoreColumn:[0,1,2],//忽略的列，從0開始算
ignoreRow:[2,4,5],//忽略的行，從0開始算
excelstyles:['text-align']//使用樣式，不用填值只寫屬性，值讀取的是html中的
});
}</script>
如上既是JS的進階導出，操作簡單，容易上手
但有個弊端就是分頁的情況下，只能導出分頁出的數據，畢竟這就是導出HTML內TABLE有的東西，數據在資料庫或後台的也就無能為力，所以這個適合的是無分頁的TABLE導出
tableExport.js是gitHub上的hhurz大牛的一個開源項目，需要下載該JS的可以點擊鏈接進入gitHub下載或在我的網路網盤下載密碼：oafu
tableExport.js不僅僅是個導出Excel的JS，他還可以導出CSV、DOC、JSON、PDF、PNG、sql、TSV、TXT、XLS (Excel 2000 HTML format)、XLSX (Excel 2007 Office Open XML format)、XML (Excel 2003 XML Spreadsheet format)、XML (Raw xml)多種格式，具體使用可以參考hhurz的使用介紹
本人在之前找了好幾個導出Excel的都有各種各樣的問題（亂碼，無響應，無樣式），這個是目前找到最好的一個了，能解決亂碼問題，能有樣式，非常強大
3. 額外說明
⑻ java導出excel
java導出Excel java 代碼 /* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.axon.fable.sams.view.action; import java.io.IOException; import java.io.OutputStream; import java.util.List; import javax.serv ... java導出Excel例舉方式 方法一：導出Excel數據的插件jexcelapi 程序實例如下： public void exportClassroom(OutputStream os) throws PaikeException { try { WritableWorkbook wbook = Workbook.createWorkbook(os); //建立excel文件 WritableSheet wsheet = wbook.createSheet("教室信息表", 0); //工作表名稱 //設置Excel字體 WritableFont wfont = new WritableFont(WritableFont.ARIAL, 16, WritableFont.BOLD, false, jxl.format.UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.BLACK); WritableCellFormat titleFormat = new WritableCellFormat(wfont); String[] title = { "教室名", "容 量", "類 型", "其他說明" }; //設置Excel表頭 for (int i = 0; i < title.length; i++) { Label excelTitle = new Label(i, 0, title[i], titleFormat); wsheet.addCell(excelTitle); } int c = 1; //用於循環時Excel的行號 ClassroomService cs = new ClassroomService(); List list = cs.findAllClassroom(); //這個是從資料庫中取得要導出的數據 Iterator it = list.iterator(); while (it.hasNext()) { ClassroomDTO crdto = (ClassroomDTO) it.next(); Label content1 = new Label(0, c, crdto.getRoomname()); Label content2 = new Label(1, c, crdto.getCapicity().toString()); Label content3 = new Label(2, c, crdto.getRoomTypeId() .toString()); Label content4 = new Label(3, c, crdto.getRemark()); wsheet.addCell(content1); wsheet.addCell(content2); wsheet.addCell(content3); wsheet.addCell(content4); c++; } wbook.write(); //寫入文件 wbook.close(); os.close(); } catch (Exception e) { throw new PaikeException("導出文件出錯"); } } 方法二：直接用Java代碼實現導出Excel報表 /* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */
⑼ 如何導出生成excel文件 java
在編程中經常需要使用到表格（報表）的處理主要以Excel表格為主。下面給出用java寫入數據到excel表格方法：
1.添加jar文件
java導入導出Excel文件要引入jxl.jar包，最關鍵的是這套API是純Java的，並不依賴Windows系統，即使運行在Linux下，它同樣能夠正確的處理Excel文件。下載地址:http://www.andykhan.com/jexcelapi/
2.jxl對Excel表格的認識
可以參見http://www.cnblogs.com/xudong-bupt/archive/2013/03/19/2969997.html
3.java代碼根據程序中的數據生成上述圖片所示的t.xls文件
?
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import java.io.File;
import jxl.*;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
public class Writer_excel{
public static void main(String[] args) {
//標題行
String title[]={"角色","編號","功能名稱","功能描述"};
//內容
String context[][]={{"UC11","設置課程","創建課程"},
{"UC12","設置學生名單","給出與課程關聯的學生名單"},
{"UC21","查看學生名單",""},
{"UC22","查看小組信息","顯示助教所負責的小組列表信息"}
};
//操作執行
try {
//t.xls為要新建的文件名
WritableWorkbook book= Workbook.createWorkbook(new File("t.xls"));
//生成名為「第一頁」的工作表，參數0表示這是第一頁
WritableSheet sheet=book.createSheet("第一頁",0);
//寫入內容
for(int i=0;i<4;i++) //title
sheet.addCell(new Label(i,0,title[i]));
for(int i=0;i<4;i++) //context
{
for(int j=0;j<3;j++)
{
sheet.addCell(new Label(j+1,i+1,context[i][j]));
}
}
sheet.addCell(new Label(0,1,"教師"));
sheet.addCell(new Label(0,3,"助教"));
/*合並單元格.合並既可以是橫向的，也可以是縱向的
*WritableSheet.mergeCells(int m,int n,int p,int q); 表示由(m,n)到(p,q)的單元格組成的矩形區域合並
* */
sheet.mergeCells(0,1,0,2);
sheet.mergeCells(0,3,0,4);
//寫入數據
book.write();
//關閉文件
book.close();
}
catch(Exception e) { }
}
⑽ java導出excel
java導出Excel
java 代碼 /* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.axon.fable.sams.view.action; import java.io.IOException; import java.io.OutputStream; import java.util.List; import javax.serv ...
java導出Excel例舉方式
方法一：導出Excel數據的插件jexcelapi
程序實例如下：
public void exportClassroom(OutputStream os) throws PaikeException {
try {
WritableWorkbook wbook = Workbook.createWorkbook(os); //建立excel文件
WritableSheet wsheet = wbook.createSheet("教室信息表", 0); //工作表名稱
//設置Excel字體
WritableFont wfont = new WritableFont(WritableFont.ARIAL, 16,
WritableFont.BOLD, false,
jxl.format.UnderlineStyle.NO_UNDERLINE,
jxl.format.Colour.BLACK);
WritableCellFormat titleFormat = new WritableCellFormat(wfont);
String[] title = { "教室名", "容 量", "類 型", "其他說明" };
//設置Excel表頭
for (int i = 0; i < title.length; i++) {
Label excelTitle = new Label(i, 0, title[i], titleFormat);
wsheet.addCell(excelTitle);
}
int c = 1; //用於循環時Excel的行號
ClassroomService cs = new ClassroomService();
List list = cs.findAllClassroom(); //這個是從資料庫中取得要導出的數據
Iterator it = list.iterator();
while (it.hasNext()) {
ClassroomDTO crdto = (ClassroomDTO) it.next();
Label content1 = new Label(0, c, crdto.getRoomname());
Label content2 = new Label(1, c, crdto.getCapicity().toString());
Label content3 = new Label(2, c, crdto.getRoomTypeId()
.toString());
Label content4 = new Label(3, c, crdto.getRemark());
wsheet.addCell(content1);
wsheet.addCell(content2);
wsheet.addCell(content3);
wsheet.addCell(content4);
c++;
}
wbook.write(); //寫入文件
wbook.close();
os.close();
} catch (Exception e) {
throw new PaikeException("導出文件出錯");
}
}
方法二：直接用Java代碼實現導出Excel報表
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.axon.fable.sams.view.action;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Workbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.axon.fable.empolderpackage.out.OutJavaScript;
import com.axon.fable.empolderpackage.page.Pager;
import com.axon.fable.empolderpackage.string.MyPublic;
import com.axon.fable.sams.common.BaseAction;
import com.axon.fable.sams.exception.AppBusinessException;
import com.axon.fable.sams.exception.AppSystemException;
/**
* MyEclipse Struts
* Creation date: 06-28-2007
*
* XDoclet definition:
* @struts.action path="/axon" name="axonForm" input="/samspage/zm/axon.jsp" parameter="method" scope="request" validate="true"
* @struts.action-forward name="success" path="/samspage/zm/content.jsp"
*/
public class StshipoperationAction extends BaseAction {
/*
* Generated Methods
*/
private static Session session=null;
private static Transaction ts=null;
private static Query queryC=null;
private static Query queryR=null;
private static Query query=null;
private static List list=null;
private static Integer startRow;
private static Integer ncurrentPage;
private static Integer cell;
private static String property;
private static String sql;
private static String type;
private static String condition ;//是否導出當前頁
private static String currentPage;
private static String from ;
private static String pactdata;
private static String voyagename;
private static String voyageno;
private static String dwt ;
private static String hirefrom ;
private static String deliveryposion ;
private static String redeliveryposion ;
private static String sheepowner ;
private static String addr;
private static String addcomm;
private static String rent;
private static String fileName ;
private static OutputStream os;
@Override
public ActionForward findAll(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
return null;
}
@Override
public ActionForward findById(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
return null;
}
@Override
public ActionForward save(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
return null;
}
public static String strNull(Object nullStr,String newStr,Integer cell){
if(nullStr==null||nullStr.equals("")){return newStr;}else{cell+=1;return nullStr+"";}
}
public static String getStr(String str,Integer cell){
if(str==null||str.trim().equals("")){return "";}else{cell+=1;return ","+str;}
}
public static String getExcelTile(String title){
if(title==null)
return "";
if(title.equals("modela.stsid"))
return "編號";
if(title.equals("modelc.pactdata"))
return "合同日期";
if(title.equals("modela.voyagename"))
return "航名";
if(title.equals("modela.voyageno"))
return "航次";
if(title.equals("modelc.dwt"))
return "DWT";
if(title.equals("modelc.hirefrom"))
return "受載期";
if(title.equals("modela.deliveryposion"))
return "交船地點";
if(title.equals("modela.redeliveryposion"))
return "還船地點";
if(title.equals("modelc.sheepowner"))
return "聯系人";
if(title.equals("modelc.addr"))
return "經紀人擁金";
if(title.equals("modelc.addcomm"))
return "ADD COMM";
if(title.equals("modelc.rent"))
return "租金";
return "";
}
public ActionForward exporVoyagesInfoToExcel(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
list=null;
startRow=0;
ncurrentPage=1;
cell=0;
type =request.getParameter("type");
condition =request.getParameter("condition");//是否導出當前頁
currentPage =request.getParameter("currentPage");
from =request.getParameter("from");
pactdata = request.getParameter("modelc.pactdata");
voyagename = request.getParameter("modela.voyagename");
voyageno = request.getParameter("modela.voyageno");
dwt = request.getParameter("modelc.dwt");
hirefrom = request.getParameter("modelc.hirefrom");
deliveryposion = request.getParameter("modela.deliveryposion");
redeliveryposion = request.getParameter("modela.redeliveryposion");
sheepowner = request.getParameter("modelc.sheepowner");
addr = request.getParameter("modelc.addr");
addcomm = request.getParameter("modelc.addcomm");
rent = request.getParameter("modelc.rent");
if(type!=null&&type.trim().equals("1")){
type ="已還船舶--費用未結清";
}else{
type ="已還船舶--費用已結清";
}
property =getStr(pactdata,cell)+getStr(voyagename,cell)+getStr(voyageno,cell)+getStr(dwt,cell)+getStr(hirefrom,cell)
+getStr(deliveryposion,cell)+getStr(redeliveryposion,cell)+getStr(sheepowner,cell)+getStr(addr,cell)+getStr(addcomm,cell)
+getStr(rent,cell);
property = property.substring(1);
String split[] = property.split(",");
// System.out.println("-----------------------------property:"+property);
if(currentPage!=null&&!currentPage.trim().equals("")){
ncurrentPage =Integer.parseInt(currentPage);
}else{
OutJavaScript.outString(response, "Sorry! Failed to get information of pager.");
return null;
}
try {
session =getServiceLocator().getBaseHibernateDAO().getSession();
sql ="select count(*) "+from;
query =session.createQuery(sql);
list = query.list();
for (int i = 0; i < list.size(); i++) {
totalSize =(Integer)list.get(i);
if(totalSize!=0){
pager =new Pager(ncurrentPage,totalSize);
}
}
query =getServiceLocator().getBaseHibernateDAO().getSession().createQuery("select " +property+from);
if(condition!=null&&condition.trim().equals("1")){//分頁數據
startRow = (ncurrentPage - 1)*pager.getPageSize();
query.setFirstResult(startRow);
query.setMaxResults(pager.getPageSize());
// System.out.println("---------------------------------------------------query:"+query);
}
list = query.list();
fileName = "shipInfo";
os = response.getOutputStream();
response.reset();
response.setHeader("Content-disposition",
"attachment; filename=" +fileName + ".xls");
response.setContentType("application/msexcel");
jxl.write.WritableWorkbook wbook = Workbook.createWorkbook(os);
jxl.write.WritableSheet wsheet = wbook.createSheet("the first sheet", 0);
for (int i = 0; i < split.length; i++) {
jxl.write.Label wlabel0;
wlabel0 = new jxl.write.Label(i, 0, getExcelTile(split[i]));
wsheet.addCell(wlabel0);
}
jxl.write.Label wlabel1;
for(int i=0;i<list.size();i++) {
if(split.length==1){
Object strval = (Object) list.get(i);
String javaScript=""+MyPublic.toHtmlStr(strval==null?"":strval.toString().trim())+"";
wlabel1 = new jxl.write.Label(0, i+1,strval==null?"":strval.toString().trim() );
wsheet.addCell(wlabel1);
}else{
Object[] strval = (Object[]) list.get(i);
for(int j=0;j<strval.length;j++) {
String javaScript=""+MyPublic.toHtmlStr(strval[j]==null?"":strval[j].toString().trim())+"";
//System.out.println("===================script:"+javaScript);
wlabel1 = new jxl.write.Label(j, i+1,strval[j]==null?"":strval[j].toString().trim() );
wsheet.addCell(wlabel1);
}
}
}
wbook.write();
response.flushBuffer();
wbook.close();
os.close();
} catch (IOException e) {
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Export Excel exception.");
e.printStackTrace();
} catch (HibernateException e1) {
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Database exception.");
e1.printStackTrace();
} catch (AppSystemException e1) {
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! System exception.");
e1.printStackTrace();
} catch (AppBusinessException e1) {
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Database exception.");
e1.printStackTrace();
} catch (RowsExceededException e) {
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Export Excel exception.");
e.printStackTrace();
} catch (WriteException e) {
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Export Excel exception.");
e.printStackTrace();
}
return null;
}
@Override
public ActionForward update(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
return null;
}
}
還有其他很多種 字數限制 無法一一舉例方式