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使用jxl导出excel时怎么创建多个sheet

2009-08-24 16:59 393 查看

虽然知道excel导出可能会出现要记录要分多个sheet的情况，但迄今为止还是没有遇到过，今天有空试了一把

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>export</title>

<meta http-equiv="pragma" content="no-cache">

<meta http-equiv="cache-control" content="no-cache">

<meta http-equiv="expires" content="0">

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

<meta http-equiv="description" content="This is my page">



</head>

<body>

<%

try{

////////查询开始///////////////

Class.forName("oracle.jdbc.driver.OracleDriver");

//连接数据库

java.sql.Connection conn = java.sql.DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:test","test","test123");

long start = 0;

long end = 100000;

//查询记录

List list = com.test.TEST_Manager.selectByCondition(conn, null,start,end);

int length = list.size();
//查询结果记录数

//设置每个sheet显示的记录数

int sheetSize = 100;

//有多少个sheet

int sheetNum = 1;

//计算要创建的sheet个数

if(length%sheetSize > 0){

sheetNum = length/sheetSize+1;

}else{

sheetNum = length/sheetSize;

}

conn.close();

conn = null;

////////查询结束///////////////

//导出excel的名称

String fileName = "test_list.xls";

response.reset();

response.setHeader("Content-Disposition", "attachment; filename=" + fileName);

response.setContentType("application/vnd.ms-excel");

//输出流

java.io.OutputStream os = response.getOutputStream();

//创建可写工作薄

jxl.write.WritableWorkbook wwb = jxl.Workbook.createWorkbook(os);

for(int kk=0; kk<sheetNum
; kk++){

/////////创建sheet[kk]开始/////////////

//创建可写工作表

jxl.write.WritableSheet ws = wwb.createSheet(("sheet"+kk), kk);

//设定第一行的行高

ws.setRowView(0,400);

//将第一列的宽度设为20

ws.setColumnView(0,15);

ws.setColumnView(1,30);

ws.setColumnView(2,30);

ws.setColumnView(3,30);

ws.setColumnView(4,30);

ws.setColumnView(5,15);

ws.setColumnView(6,30);

ws.setColumnView(7,15);

//////////////设置标题开始////////////////

//设置写入字体

jxl.write.WritableFont wf = new jxl.write.WritableFont(jxl.write.WritableFont.ARIAL, 11,jxl.write.WritableFont.BOLD, false);

//设置CellFormat

jxl.write.WritableCellFormat wcfF = new jxl.write.WritableCellFormat(wf);

//用于Number的格式

//jxl.write.NumberFormat nf = new jxl.write.NumberFormat("0.00");

//jxl.write.WritableCellFormat priceformat = new jxl.write.WritableCellFormat(nf);

// 把水平对齐方式指定为左对齐

wcfF.setAlignment(jxl.format.Alignment.LEFT);

// 把垂直对齐方式指定为居中对齐

wcfF.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);

//设置列名

jxl.write.Label labelCF1 = new jxl.write.Label(0, 0, "测试ID",wcfF);

jxl.write.Label labelCF2 = new jxl.write.Label(1, 0, "测试名称",wcfF);

jxl.write.Label labelCF3 = null;

labelCF3 = new jxl.write.Label(2, 0, "测试上线时间",wcfF);

jxl.write.Label labelCF4 = new jxl.write.Label(3, 0, "别名",wcfF);

jxl.write.Label labelCF5 = new jxl.write.Label(4, 0, "数量",wcfF);

jxl.write.Label labelCF6 = new jxl.write.Label(5, 0, "状态1",wcfF);

jxl.write.Label labelCF7 = new jxl.write.Label(6, 0, "状态2",wcfF);

jxl.write.Label labelCF8 = new jxl.write.Label(7, 0, "类型",wcfF);

//绑定值

ws.addCell(labelCF1);

ws.addCell(labelCF2);

ws.addCell(labelCF3);

ws.addCell(labelCF4);

ws.addCell(labelCF5);

ws.addCell(labelCF6);

ws.addCell(labelCF7);

ws.addCell(labelCF8);

//////////////设置标题结束////////////////

jxl.write.WritableFont wf1 = new jxl.write.WritableFont(jxl.write.WritableFont.ARIAL, 11,jxl.write.WritableFont.NO_BOLD, false);

//设置CellFormat

jxl.write.WritableCellFormat wcfF2 = new jxl.write.WritableCellFormat(wf1);

/////////////循环写excel主体开始////////////

for(int i = kk*sheetSize; i< (kk+1)*sheetSize ; i++
){

if(i<length
){

com.test.TEST test = (com.test.TEST) list.get(i);

jxl.write.Label data1 = new jxl.write.Label(0, i+1-(kk*sheetSize)
, (""+test.getTestid()),wcfF2);

jxl.write.Label data2 = new jxl.write.Label(1, i+1-(kk*sheetSize)
, (""+test.getTest_name()),wcfF2);

jxl.write.Label data3 = new jxl.write.Label(2, i+1-(kk*sheetSize)
, (""+test.getTest_date()),wcfF2);

jxl.write.Label data4 = new jxl.write.Label(3, i+1-(kk*sheetSize)
, (""+test.getOthername()),wcfF2);

jxl.write.Label data5 = new jxl.write.Label(4, i+1-(kk*sheetSize)
, (""+test.getSize()),wcfF2);

jxl.write.Label data6 = new jxl.write.Label(5, i+1-(kk*sheetSize)
, (""+test.getState1()),wcfF2);

jxl.write.Label data7 = new jxl.write.Label(6, i+1-(kk*sheetSize)
, (""+test.getState2()),wcfF2);

jxl.write.Label data8 = new jxl.write.Label(7, i+1-(kk*sheetSize)
, (""+test.getType()),wcfF2);

ws.addCell(data1);

ws.addCell(data2);

ws.addCell(data3);

ws.addCell(data4);

ws.addCell(data5);

ws.addCell(data6);

ws.addCell(data7);

ws.addCell(data8);

}else{

break;

}

}

/////////////循环写excel主体结束////////////

/////////创建sheet[kk]结束/////////////

}

//我猜测数据太多时，可能会导致内存溢出

wwb.write();

wwb.close();

os.flush();

os.close();

out.clear();

out = pageContext.pushBody();

}catch(Exception e){

e.printStackTrace();

}

%><br>

</body>

</html>

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