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JAVA操作excel

package ?com.eesys.apps.logic;
?2

import ?java.io.File;
?4

import ?java.io.FileInputStream;
?5

import ?java.io.InputStream;
?6

import ?jxl.Cell;
?8

import ?jxl.CellType;
?9

import ?jxl.Sheet;
10

import ?jxl.Workbook;
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import ?jxl.write.Label;
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public ? class ?PrintManager? {
14

????
15

?????? public ? static ? void ?main(String[]?args)? {
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????????jxl.Workbook?rwb? = ? null ;
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???????? try {
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?????????? // 構建Workbook對象,?只讀Workbook對象
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?????????? // 直接從本地文件創建Workbook
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?????????? // 從輸入流創建Workbook
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????????????System.out.println( " ********START!******* " );
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??????????InputStream?is? = ? new ?FileInputStream( " D:/test.xls " );
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??????????rwb? = ?Workbook.getWorkbook(is);
24

?????????? // Sheet(術語：工作表)就是Excel表格左下角的Sheet1,Sheet2,Sheet3但在程序中
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?????????? // Sheet的下標是從0開始
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?????????? // 獲取第一張Sheet表
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???????????Sheet?rs? = ?rwb.getSheet( 0 );
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??????????? // 獲取Sheet表中所包含的總列數
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??????????? int ?rsColumns? = ?rs.getColumns();
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??????????? // 獲取Sheet表中所包含的總行數
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??????????? int ?rsRows? = ?rs.getRows();
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??????????? // 獲取指定單元格的對象引用
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??????????? for ( int ?i = 0 ;i < rsRows;i ++ ) {
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????????????? for ( int ?j = 0 ;j < rsColumns;j ++ ) {
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???????????????Cell?cell? = ?rs.getCell(j,i);
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???????????????System.out.print(cell.getContents() + " ? " );
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?????????????}
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?????????????System.out.println();
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???????????}
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??????????? // 利用已經創建的Excel工作薄創建新的可寫入的Excel工作薄
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???????????jxl.write.WritableWorkbook?wwb? = ?Workbook.createWorkbook( new ?File( " D:/Book2.xls " ),rwb);
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??????????? // 讀取第一張工作表
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???????????
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???????????jxl.write.WritableSheet?ws? = ?wwb.getSheet( 0 );
46

???????????
47

???????????
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??????????? // 獲得第一個單元格對象
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???????????jxl.write.WritableCell?wc? = ?ws.getWritableCell( 0 ,? 0 );
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??????????? // 判斷單元格的類型,?做出相應的轉化
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??????????? if ?(wc.getType()? == ?CellType.LABEL)? {
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?????????????Label?l? = ?(Label)?wc;
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?????????????l.setString( " The?value?has?been?modified. " );
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???????????}
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??????????? // 寫入Excel對象
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???????????wwb.write();
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???????????wwb.close();
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???????????System.out.println( " ********END!******* " );
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????????} catch (Exception?e) {
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??????????e.printStackTrace();
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????????}
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???????? finally {
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?????????? // 操作完成時，關閉對象，釋放占用的內存空間
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??????????rwb.close();
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????????}
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??????}
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????}
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JSP 文件

<%@?page?contentType="text/html;?charset=GBK"?%>
?2

<%@?page?import="java.io.File"?%>
?3

<%@?page?import="java.io.FileInputStream"?%>
?4

<%@?page?import="java.io.FileOutputStream"?%>
?5

<%@?page?import="jxl.write.WritableSheet"?%>
?6

<%@?page?import="java.io.InputStream"?%>
?7

<%
?9

response.reset();//清除Buffer
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response.setContentType("application/vnd.ms-excel");
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File?fileWrite?=?new?File("d:/test.xls");
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response.setContentLength((int)?fileWrite.length());?
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InputStream?in=new?FileInputStream(fileWrite);
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byte[]?b?=?new?byte[2048];
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int?len?=?0;
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while?((len?=?in.read(b))?>?0)?{
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????response.getOutputStream().write(b,?0,?len);?//?向瀏覽器輸出
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???}
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in.close();
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response.getOutputStream().close();
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posted on 2006-12-19 15:00 Tom 閱讀(175) 評論(0) 編輯收藏所屬分類: 報表工具

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