java存入excel_如何在Java中導入Excel表數據

『壹』 java如何將數據導入Excel模板

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public static ArrayList<String> readTelExcel(String filepath) {
try {
//查詢文件是否存在
File file = new File(filepath);
if (file.exists()) {
ArrayList<String> result = new ArrayList<String>();
//聲明一個excel文件對象
Workbook wb = Workbook.getWorkbook(file);
//讀取每一個工作薄,你也可能用wb.getSheets()得到全部工作薄
Sheet ws = wb.getSheet(0);
if (null != ws) {
//取出所有行
int rows = ws.getRows();
for (int i = 0; i < rows; i++) {
//讀取第一列中的內容
String cell = ws.getCell(0, i).getContents();
if (null != cell) {
result.add(cell.trim());
}
}
}
return result;
}
return null;
} catch (BiffException e) {
e.printStackTrace();
return null;
} catch (IndexOutOfBoundsException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}

『貳』如何用java把數據寫入到excel

需要導入jxl.jar
搭建環境
將下載後的文件解包，得到jxl.jar，放入classpath，安裝就完成了。

創建文件
擬生成一個名為「測試數據.xls」的Excel文件，其中第一個工作表被命名為「第一頁」，大致效果如下：
代碼（CreateXLS.java）：
//生成Excel的類
import java.io.*;
import jxl.*;
import jxl.write.*;
public class CreateXLS
{
public static void main(String args[])
{
try
{
//打開文件
WritableWorkbook book=
Workbook.createWorkbook(new File(「測試.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);
//在Label對象的構造子中指名單元格位置是第一列第一行(0,0)
//以及單元格內容為test
Label label=new Label(0,0,」test」);
//將定義好的單元格添加到工作表中
sheet.addCell(label);
/*生成一個保存數字的單元格
必須使用Number的完整包路徑，否則有語法歧義
單元格位置是第二列，第一行，值為789.123*/
jxl.write.Number number = new jxl.write.Number(1,0,789.123);
sheet.addCell(number);
//寫入數據並關閉文件
book.write();
book.close();
}catch(Exception e)
{
System.out.println(e);
}
}
}
編譯執行後，會在當前位置產生一個Excel文件。

『叄』怎麼把有規律的數據用java寫入excel中

『肆』 java中怎麼把數據寫入excel

1、生成EXCEL需要手動寫查詢語句把ORACLE資料庫中的數據查詢出來，再通過操作寫到EXCEL文件裡面。
2、通過EXCEL把數據讀取到ORACLE，同樣需要去讀取EXCEL工作薄裡面的內容，再通過INSERT語句去插入資料庫操作。
示例：
包括從Excel讀取數據,生成新的Excel，以及修改Excel

『伍』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");
}
}

『陸』如何在Java中導入Excel表數據

import java.io.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.sql.*;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import jxl.*;
public class SimUpdate {
private String fileName;
public ZfzSimUpdate(String fileName){
this.fileName = fileName;
}
static Map tNames;
static{
tNames = new HashMap();
}
/**
* 用於產生資料庫的 ID 值，組成 [年月日時分秒(100-999)] 總共 17 位數.
* 根據不同的表名，可保證同一秒內產生的 ID 號不重復
*/
private static String getDtime() {
String rid;
Date nd = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
rid = sdf.format(nd);
return rid;
}

public String getSeqNumber(String tableName) {
if(tableName == null || "".equals(tableName))
tableName = "GENERY";
Integer it;
// noinspection SynchronizeOnNonFinalField
synchronized(tNames){
it = (Integer)tNames.get(tableName);
if(it == null){
it = new Integer(100);
tNames.put(tableName, it);
}else{
if(it.intValue() > 998)
it = new Integer(100);
else
it = new Integer(1 + it.intValue());
tNames.put(tableName, it);
}
}
return getDtime() + String.valueOf(it);
}

private void updateDb(){
try{
Connection conn = DbPool.connectDB();
if(conn != null){
Statement stmt = conn.createStatement();
/**********************************************/
jxl.Workbook rwb = null;
try{
//構建Workbook對象只讀Workbook對象
//直接從本地文件創建Workbook
//從輸入流創建Workbook
InputStream is = new FileInputStream(fileName);
rwb = Workbook.getWorkbook(is);
//Sheet(術語：工作表)就是Excel表格左下角的Sheet1,Sheet2,Sheet3但在程序中
//Sheet的下標是從0開始的
//獲取第一張Sheet表
Sheet rs = rwb.getSheet(0);
//獲取Sheet表中所包含的總列數
int rsColumns = rs.getColumns();
//獲取Sheet表中所包含的總行數
int rsRows = rs.getRows();
//獲取指這下單元格的對象引用

String simNumber = "",termSeqId = "";
//指定SIM卡號及序列號
for(int i=0;i<rsRows;i++){
for(int j=0;j<rsColumns;j++){
Cell cell = rs.getCell(j,i);
if(j==0){
simNumber = cell.getContents();
}
termSeqId = "633"+simNumber;
}
String sql = "查詢SQL";
int isOk = stmt.executeUpdate(sql);
if(isOk == 0 && !simNumber.equals("")){
String termId = getSeqNumber("termInf");
String insertSql = "自定義INSERT";
int isAdd = stmt.executeUpdate(insertSql);
if(isAdd > 0){
System.out.println("成功插入第"+i+"條數據");
}

}
//System.out.println("SIM卡號:"+simNumber+",序列號:"+termSeqId);
}

//以下代碼為寫入新的EXCEL,這里不使用,所以注釋
/*

//利用已經創建的Excel工作薄創建新的可寫入的Excel工作薄
jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(new File("D://Book2.xls"),rwb);
//讀取第一張工作表
jxl.write.WritableSheet ws = wwb.getSheet(0);

//獲取第一個單元格對象
jxl.write.WritableCell wc = ws.getWritableCell(0, 0);
//決斷單元格的類型，做出相應的轉化
if (wc.getType() == CellType.LABEL) {
Label l = (Label) wc;
l.setString("The value has been modified.");
}
//寫入Excel對象
wwb.write();
wwb.close();
*/
}catch(Exception e){
e.printStackTrace();
}
finally{
//操作完成時，關閉對象，翻譯佔用的內存空間
rwb.close();

}
/*********************************************/

}
}catch(Exception e){
e.printStackTrace();
}
}
public static void main(String args[]){
DbPool dbPool = new DbPool("dbConn.cfg");//連接資料庫
SimUpdate simUpdate = new SimUpdate("zfz_sim.xls");
simUpdate.updateDb();

}

}

我只用了讀取XLS,寫入沒試,應該沒問題吧,你把注釋了的拿來試一下吧

『柒』怎麼用java把資料庫里的數據寫入到excel表中

java 讀excel 還是比較方便簡單的，原理就是，先用java 讀取excel，然後，一行行的寫入資料庫，欄位的話，你自己程序裡面寫就行了，給你個例子：
從Excel讀取數據,生成新的Excel，以及修改Excel
package common.util;

import jxl.*;
import jxl.format.UnderlineStyle;
import jxl.write.*;
import jxl.write.Number;
import jxl.write.Boolean;

import java.io.*;

/**
* Created by IntelliJ IDEA.
* User: xl
* Date: 2005-7-17
* Time: 9:33:22
* To change this template use File | Settings | File Templates.
*/
public class ExcelHandle
{
public ExcelHandle()
{
}

/**
* 讀取Excel
*
* @param filePath
*/
public static void readExcel(String filePath)
{
try
{
InputStream is = new FileInputStream(filePath);
Workbook rwb = Workbook.getWorkbook(is);
//Sheet st = rwb.getSheet("0")這里有兩種方法獲取sheet表,1為名字，而為下標，從0開始
Sheet st = rwb.getSheet("original");
Cell c00 = st.getCell(0,0);
//通用的獲取cell值的方式,返回字元串
String strc00 = c00.getContents();
//獲得cell具體類型值的方式
if(c00.getType() == CellType.LABEL)
{
LabelCell labelc00 = (LabelCell)c00;
strc00 = labelc00.getString();
}
//輸出
System.out.println(strc00);
//關閉
rwb.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}

/**
* 輸出Excel
*
* @param os
*/
public static void writeExcel(OutputStream os)
{
try
{
/**
* 只能通過API提供的工廠方法來創建Workbook，而不能使用WritableWorkbook的構造函數，
* 因為類WritableWorkbook的構造函數為protected類型
* method(1)直接從目標文件中讀取WritableWorkbook wwb = Workbook.createWorkbook(new File(targetfile));
* method(2)如下實例所示將WritableWorkbook直接寫入到輸出流

*/
WritableWorkbook wwb = Workbook.createWorkbook(os);
//創建Excel工作表指定名稱和位置
WritableSheet ws = wwb.createSheet("Test Sheet 1",0);

//**************往工作表中添加數據*****************

//1.添加Label對象
Label label = new Label(0,0,"this is a label test");
ws.addCell(label);

//添加帶有字型Formatting對象
WritableFont wf = new WritableFont(WritableFont.TIMES,18,WritableFont.BOLD,true);
WritableCellFormat wcf = new WritableCellFormat(wf);
Label labelcf = new Label(1,0,"this is a label test",wcf);
ws.addCell(labelcf);

//添加帶有字體顏色的Formatting對象
WritableFont wfc = new WritableFont(WritableFont.ARIAL,10,WritableFont.NO_BOLD,false,
UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED);
WritableCellFormat wcfFC = new WritableCellFormat(wfc);
Label labelCF = new Label(1,0,"This is a Label Cell",wcfFC);
ws.addCell(labelCF);

//2.添加Number對象
Number labelN = new Number(0,1,3.1415926);
ws.addCell(labelN);

//添加帶有formatting的Number對象
NumberFormat nf = new NumberFormat("#.##");
WritableCellFormat wcfN = new WritableCellFormat(nf);
Number labelNF = new jxl.write.Number(1,1,3.1415926,wcfN);
ws.addCell(labelNF);

//3.添加Boolean對象
Boolean labelB = new jxl.write.Boolean(0,2,false);
ws.addCell(labelB);

//4.添加DateTime對象
jxl.write.DateTime labelDT = new jxl.write.DateTime(0,3,new java.util.Date());
ws.addCell(labelDT);

//添加帶有formatting的DateFormat對象
DateFormat df = new DateFormat("dd MM yyyy hh:mm:ss");
WritableCellFormat wcfDF = new WritableCellFormat(df);
DateTime labelDTF = new DateTime(1,3,new java.util.Date(),wcfDF);
ws.addCell(labelDTF);

//添加圖片對象,jxl只支持png格式圖片
File image = new File("f:\\2.png");
WritableImage wimage = new WritableImage(0,1,2,2,image);
ws.addImage(wimage);
//寫入工作表
wwb.write();
wwb.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}

/**
* 拷貝後,進行修改,其中file1為被對象，file2為修改後創建的對象
* 盡單元格原有的格式化修飾是不能去掉的，我們還是可以將新的單元格修飾加上去，
* 以使單元格的內容以不同的形式表現
* @param file1
* @param file2
*/
public static void modifyExcel(File file1,File file2)
{
try
{
Workbook rwb = Workbook.getWorkbook(file1);
WritableWorkbook wwb = Workbook.createWorkbook(file2,rwb);//
WritableSheet ws = wwb.getSheet(0);
WritableCell wc = ws.getWritableCell(0,0);
//判斷單元格的類型,做出相應的轉換
if(wc.getType == CellType.LABEL)
{
Label label = (Label)wc;
label.setString("The value has been modified");
}
wwb.write();
wwb.close();
rwb.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}

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