java快速導出excel文件

① java中導出到Excel

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]);
}

}
}

② java怎樣輸出excel文件

//java生成簡單的Excel文件
packagebeans.excel;
importjava.io.IOException;
importjava.io.OutputStream;
importjxl.Workbook;
importjxl.write.Label;
importjxl.write.WritableSheet;
importjxl.write.WritableWorkbook;
importjxl.write.WriteException;

publicclassSimpleExcelWrite{
publicvoidcreateExcel(OutputStreamos)throwsWriteException,IOException{
//創建工作薄
WritableWorkbookworkbook=Workbook.createWorkbook(os);
//創建新的一頁
WritableSheetsheet=workbook.createSheet("FirstSheet",0);
//創建要顯示的內容,創建一個單元格，第一個參數為列坐標，第二個參數為行坐標，第三個參數為內容
Labelxuexiao=newLabel(0,0,"學校");
sheet.addCell(xuexiao);
Labelzhuanye=newLabel(1,0,"專業");
sheet.addCell(zhuanye);
Labeljingzhengli=newLabel(2,0,"專業競爭力");
sheet.addCell(jingzhengli);

Labelqinghua=newLabel(0,1,"清華大學");
sheet.addCell(qinghua);
Labeljisuanji=newLabel(1,1,"計算機專業");
sheet.addCell(jisuanji);
Labelgao=newLabel(2,1,"高");
sheet.addCell(gao);

Labelbeida=newLabel(0,2,"北京大學");
sheet.addCell(beida);
Labelfalv=newLabel(1,2,"法律專業");
sheet.addCell(falv);
Labelzhong=newLabel(2,2,"中");
sheet.addCell(zhong);

Labelligong=newLabel(0,3,"北京理工大學");
sheet.addCell(ligong);
Labelhangkong=newLabel(1,3,"航空專業");
sheet.addCell(hangkong);
Labeldi=newLabel(2,3,"低");
sheet.addCell(di);

//把創建的內容寫入到輸出流中，並關閉輸出流
workbook.write();
workbook.close();
os.close();
}

}

③ 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();
}
}

④ java怎麼實現導出excel

import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

public class CreateSimpleExcelToDisk
{
/**
* @功能：手工構建一個簡單格式的Excel
*/
private static List<Student> getStudent() throws Exception
{
List list = new ArrayList();
SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd");

Student user1 = new Student(1, "張三", 16, df.parse("1997-03-12"));
Student user2 = new Student(2, "李四", 17, df.parse("1996-08-12"));
Student user3 = new Student(3, "王五", 26, df.parse("1985-11-12"));
list.add(user1);
list.add(user2);
list.add(user3);

return list;
}

public static void main(String[] args) throws Exception
{
// 第一步，創建一個webbook，對應一個Excel文件
HSSFWorkbook wb = new HSSFWorkbook();
// 第二步，在webbook中添加一個sheet,對應Excel文件中的sheet
HSSFSheet sheet = wb.createSheet("學生表一");
// 第三步，在sheet中添加表頭第0行,注意老版本poi對Excel的行數列數有限制short
HSSFRow row = sheet.createRow((int) 0);
// 第四步，創建單元格，並設置值表頭 設置表頭居中
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 創建一個居中格式

HSSFCell cell = row.createCell((short) 0);
cell.setCellValue("學號");
cell.setCellStyle(style);
cell = row.createCell((short) 1);
cell.setCellValue("姓名");
cell.setCellStyle(style);
cell = row.createCell((short) 2);
cell.setCellValue("年齡");
cell.setCellStyle(style);
cell = row.createCell((short) 3);
cell.setCellValue("生日");
cell.setCellStyle(style);

// 第五步，寫入實體數據 實際應用中這些數據從資料庫得到，
List list = CreateSimpleExcelToDisk.getStudent();

for (int i = 0; i < list.size(); i++)
{
row = sheet.createRow((int) i + 1);
Student stu = (Student) list.get(i);
// 第四步，創建單元格，並設置值
row.createCell((short) 0).setCellValue((double) stu.getId());
row.createCell((short) 1).setCellValue(stu.getName());
row.createCell((short) 2).setCellValue((double) stu.getAge());
cell = row.createCell((short) 3);
cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(stu
.getBirth()));
}
// 第六步，將文件存到指定位置
try
{
FileOutputStream fout = new FileOutputStream("E:/students.xls");
wb.write(fout);
fout.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

⑤ java 通用導出一個excel

java導出Excel通用方法，只需要一個list 集合。
package oa.common.utils;
import java.io.OutputStream;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import java.lang.reflect.Field;

import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
/***
* @author lsf
*/
public class ExportExcel {
/***************************************************************************
* @param fileName EXCEL文件名稱
* @param listTitle EXCEL文件第一行列標題集合
* @param listContent EXCEL文件正文數據集合
* @return
*/
public final static String exportExcel(String fileName,String[] Title, List<Object> listContent) {
String result="系統提示：Excel文件導出成功！";
// 以下開始輸出到EXCEL
try {
//定義輸出流，以便打開保存對話框______________________begin
HttpServletResponse response=ServletActionContext.getResponse();
OutputStream os = response.getOutputStream();// 取得輸出流
response.reset();// 清空輸出流
response.setHeader("Content-disposition", "attachment; filename="族賀+ new String(fileName.getBytes("GB2312"),"ISO8859-1"));
// 設定輸出文件模世頭
response.setContentType("application/msexcel");// 定義輸出類型
//定義輸出流，以便打開保存對話框_______________________end

/** **********創建工作簿************ */
WritableWorkbook workbook = Workbook.createWorkbook(os);

/** **********創建工作表************ */

WritableSheet sheet = workbook.createSheet("Sheet1", 0);

/** **********設置縱橫列印（默認旦穗肢為縱打）、列印紙***************** */
jxl.SheetSettings sheetset = sheet.getSettings();
sheetset.setProtected(false);

/** ************設置單元格字體************** */
WritableFont NormalFont = new WritableFont(WritableFont.ARIAL, 10);
WritableFont BoldFont = new WritableFont(WritableFont.ARIAL, 10,WritableFont.BOLD);

/** ************以下設置三種單元格樣式，靈活備用************ */
// 用於標題居中
WritableCellFormat wcf_center = new WritableCellFormat(BoldFont);
wcf_center.setBorder(Border.ALL, BorderLineStyle.THIN); // 線條
wcf_center.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直對齊
wcf_center.setAlignment(Alignment.CENTRE); // 文字水平對齊
wcf_center.setWrap(false); // 文字是否換行

// 用於正文居左
WritableCellFormat wcf_left = new WritableCellFormat(NormalFont);
wcf_left.setBorder(Border.NONE, BorderLineStyle.THIN); // 線條
wcf_left.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直對齊
wcf_left.setAlignment(Alignment.LEFT); // 文字水平對齊
wcf_left.setWrap(false); // 文字是否換行

/** ***************以下是EXCEL開頭大標題，暫時省略********************* */
//sheet.mergeCells(0, 0, colWidth, 0);
//sheet.addCell(new Label(0, 0, "XX報表", wcf_center));
/** ***************以下是EXCEL第一行列標題********************* */
for (int i = 0; i < Title.length; i++) {
sheet.addCell(new Label(i, 0,Title[i],wcf_center));
}
/** ***************以下是EXCEL正文數據********************* */
Field[] fields=null;
int i=1;
for(Object obj:listContent){
fields=obj.getClass().getDeclaredFields();
int j=0;
for(Field v:fields){
v.setAccessible(true);
Object va=v.get(obj);
if(va==null){
va="";
}
sheet.addCell(new Label(j, i,va.toString(),wcf_left));
j++;
}
i++;
}
/** **********將以上緩存中的內容寫到EXCEL文件中******** */
workbook.write();
/** *********關閉文件************* */
workbook.close();

} catch (Exception e) {
result="系統提示：Excel文件導出失敗，原因："+ e.toString();
System.out.println(result);
e.printStackTrace();
}
return result;
}
}

測試：
/**
* 導出excel
* @return
*/
public String excelPage(){
ExportExcel excel=new ExportExcel();
String str="";
try {
str = new String(getHTTP.getRequest().getParameter("wineOrg.orgName").getBytes("iso8859-1"),"UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
wineOrg.setOrgName(str);
List<Object> li=service.exportExcel(wineOrg);
String[] Title={"機構ID","會員編號","類別","名稱","省ID","省名稱","城市ID","城市名稱","詳細地址","聯系人","性別","聯系手機","聯系電話","傳真","郵箱","QQ","生日","積分","客戶等級","現金賬戶余額","結算方式","客戶類型","購買次數","購買支數","創建人ID","創建人姓名","create_time","del","STS","備注","負責人ID","負責人姓名","審核標識","審核人ID ","審核人姓名","審核日期","分配人ID","分配人姓名","分配日期","修改人ID","修改人姓名 ","修改時間"};
excel.exportExcel("客戶資料信息.xls",Title, li);
return SUCCESS;
}

⑥ java代碼怎麼導出excel文件

excel工具類
package com.ohd.ie.proct.action;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;
import org.apache.commons.io.output.ByteArrayOutputStream;
import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.VerticalAlignment;
import jxl.write.*;
import jxl.write.Number;
import jxl.write.biff.RowsExceededException;
public class Excel {
private OutputStream os;
private WritableWorkbook wwb = null;
private WritableSheet ws = null;
private WritableCellFormat titleCellFormat = null;
private WritableCellFormat noBorderCellFormat = null;
private WritableCellFormat hasBorderCellFormat = null;
private WritableCellFormat hasBorderCellNumberFormat = null;
private WritableCellFormat hasBorderCellNumberFormat2 = null;
private WritableImage writableImage=null;
private int r;
public Excel(OutputStream os){
this.os = os;
r = -1;
try {
wwb = Workbook.createWorkbook(os);
//創建工作表
ws = wwb.createSheet("sheet1",0);
//設置表頭字體,大小，加粗
titleCellFormat = new WritableCellFormat();
titleCellFormat.setAlignment(Alignment.CENTRE);
titleCellFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
//自動換行
titleCellFormat.setWrap(true);
titleCellFormat.setFont(new WritableFont(WritableFont.createFont("宋體"),12,WritableFont.BOLD));
titleCellFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
//設置表格字體,大小----無邊框
noBorderCellFormat = new WritableCellFormat();
noBorderCellFormat.setAlignment(Alignment.CENTRE);
noBorderCellFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
noBorderCellFormat.setFont(new WritableFont(WritableFont.createFont("宋體"),12));
//設置表格字體,大小----有邊框
hasBorderCellFormat = new WritableCellFormat();
hasBorderCellFormat.setAlignment(Alignment.CENTRE);
hasBorderCellFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
hasBorderCellFormat.setFont(new WritableFont(WritableFont.createFont("宋體"),12));
hasBorderCellFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
//設置表格字體,大小----有邊框(小數)
NumberFormat nf = new NumberFormat("#0.00");
hasBorderCellNumberFormat = new WritableCellFormat(nf);
hasBorderCellNumberFormat.setAlignment(Alignment.CENTRE);
hasBorderCellNumberFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
hasBorderCellNumberFormat.setFont(new WritableFont(WritableFont.createFont("宋體"),12));
hasBorderCellNumberFormat.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
//設置表格字體,大小----有邊框(整數)
NumberFormat nf2 = new NumberFormat("#0");
hasBorderCellNumberFormat2 = new WritableCellFormat(nf2);
hasBorderCellNumberFormat2.setAlignment(Alignment.CENTRE);
hasBorderCellNumberFormat2.setVerticalAlignment(VerticalAlignment.CENTRE);
hasBorderCellNumberFormat2.setFont(new WritableFont(WritableFont.createFont("宋體"),12));
hasBorderCellNumberFormat2.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
*
* @param content 內容
* @param c 列
* @param style 樣式
* @param isNewLine 是否換行
* @param mergeType 合並類型
* @param mergeCount 合並個數
* @param width 單元格寬
*/
public void setExcelCell(String content,int c,int style,boolean isNewLine,int mergeType,int mergeCount,int width){
try {
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////報表內容////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
if(isNewLine){
r++;
}
WritableCell l = null;
if(style == 1){
l = new Label(c,r,content,titleCellFormat);
}
else if(style == 2){
l = new Label(c,r,content,noBorderCellFormat);
}
else if(style == 3){
l = new Label(c,r,content,hasBorderCellFormat);
}
else if(style == 4){
l = new Number(c,r,Double.parseDouble(content),hasBorderCellNumberFormat);
}
else if(style == 5){
l = new Number(c,r,Integer.parseInt(content),hasBorderCellNumberFormat2);
}
ws.addCell(l);
if(width != 0){
ws.setColumnView(c,width);
}
//veryhuo,com
if(mergeType == 1){
//x 軸方向
ws.mergeCells(c, r, c+mergeCount-1 , r);
}
else if(mergeType == 2){
//y 軸方向
ws.mergeCells(c, r, c, r+mergeCount-1);
}
if(isNewLine){
ws.setRowView(r, 350);
if(style == 1 && r != 0){
ws.setRowView(r, 900);
}
else{
ws.setRowView(r, 350);
}
}
//
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
} catch (Exception e) {
System.out.println(e.toString());
}
}
public void setExcelCellEx(String content,int c,int style,boolean isNewLine,int mergeType,int mergeCount,int width,int row){
try {
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////報表內容////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
if(isNewLine){
r++;
}
WritableCell l = null;
if(style == 1){
l = new Label(c,r,content,titleCellFormat);
}
else if(style == 2){
l = new Label(c,r,content,noBorderCellFormat);
}
else if(style == 3){
if(content.indexOf(".jpg")!=-1 ||content.indexOf(".JPG")!=-1){
File outputFile=null;
File imgFile =new File(content);
if(imgFile.exists()&&imgFile.length()>0){
BufferedImage input=null;
try {
input = ImageIO.read(imgFile);
} catch (Exception e) {
e.printStackTrace();
}
if(input!=null){
String path=imgFile.getAbsolutePath();
outputFile = new File(path.substring(0,path.lastIndexOf('.')+1)+"png");
ImageIO.write(input, "PNG", outputFile);
if(outputFile.exists()&&outputFile.length()>0){
ws.setRowView(row,2000);
//ws.setColumnView(8, 10);
writableImage = new WritableImage(c+0.1, row+0.1, 0.8, 0.8, outputFile);
ws.addImage(writableImage);
l = new Label(c,r,"",hasBorderCellFormat);
}
}
}
}else{
l = new Label(c,r,content,hasBorderCellFormat);
}
}
else if(style == 4){
l = new Number(c,r,Double.parseDouble(content),hasBorderCellNumberFormat);
}
else if(style == 5){
l = new Number(c,r,Integer.parseInt(content),hasBorderCellNumberFormat2);
}
ws.addCell(l);
if(width != 0){
ws.setColumnView(c,width);
}
if(mergeType == 1){
//x 軸方向
ws.mergeCells(c, r, c+mergeCount-1 , r);
}
else if(mergeType == 2){
//y 軸方向
ws.mergeCells(c, r, c, r+mergeCount-1);
}
if(isNewLine){
ws.setRowView(r, 350);
if(style == 1 && r != 0){
ws.setRowView(r, 900);
}
else{
ws.setRowView(r, 350);
}
}
} catch (Exception e) {
System.out.println(e.toString());
}
}
public void setRowHeight(int val){
try {
ws.setRowView(r, val);
} catch (RowsExceededException e) {
e.printStackTrace();
}
}
public void getExcelResult(){
try {
wwb.write();
} catch (Exception e) {
System.out.println(e.toString());
}
finally{
if(wwb != null){
try {
wwb.close();
if(os != null){
os.close();
}
} catch (WriteException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
需要的jar包：jxl.jar

⑦ java導出excel

wb = Workbook.getWorkbook(file);//按路徑獲取抄excel表
Sheet sheet = wb.getSheet(0);//第一個工作簿
sheet.getCell(x,y).getContents())//獲取x列y行的數據；
需要一個jxl架包

⑧ 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 );

}

⑨ 如何用java完成Excel快速的導入導出

導出
現在我們定義好對象了,如何導出Excel --ExcelExportUtil 這個導出工具類
public void testExportExcel_1() throws Exception {
ExportParams params = new ExportParams("0328課程表", "日期：2016-03-28", "六年一班");
Workbook workbook = ExcelExportUtil.exportExcel(params, CourseEntity.class,courseList);
FileOutputStream fos = new FileOutputStream("D:/excel/0328課程表.xls");
workbook.write(fos);
fos.close();
}
我們只要把我們定義好的對象的class傳進去,以及對象的集合,Easypoi就可以返回一個Excel的workbook了,同時Easypoi是兼容03版本office和07版本office,你要穿個參數指定下類型及可以了,是不是不是比我們自己寫代碼簡單多了,最少只需要2行代碼就可以完成我們的office操作了

導入
我們把導出寫完了,導入是不是很復雜呢,也不是,導入也是同樣簡單,定時實體和上面定義的方式一樣
導入是用導入工具類
ImportParams params = new ImportParams();
params.setHeadRows(2);
List<CourseEntity> list = ExcelImportUtil.importExcel(inputStream, CourseEntity.class, params);

定義下表頭的參數,然後把流傳入進去就可以得到我們的對象列表是不是so easy.趕快來使用吧

⑩ 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) { }
}