java jxl创建多个sheet,使用jxl导出excel时怎么创建多个sheet | 学步园
雖然知道excel導(dǎo)出可能會(huì)出現(xiàn)要記錄要分多個(gè)sheet的情況,但迄今為止還是沒(méi)有遇到過(guò),今天有空試了一把
exporttry{
查詢(xún)開(kāi)始///
Class.forName("oracle.jdbc.driver.OracleDriver");
//連接數(shù)據(jù)庫(kù)
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;
//查詢(xún)記錄
List list = com.test.TEST_Manager.selectByCondition(conn, null,start,end);
int length = list.size();
//查詢(xún)結(jié)果記錄數(shù)
//設(shè)置每個(gè)sheet顯示的記錄數(shù)
int sheetSize = 100;
//有多少個(gè)sheet
int sheetNum = 1;
//計(jì)算要?jiǎng)?chuàng)建的sheet個(gè)數(shù)
if(length%sheetSize > 0){
sheetNum = length/sheetSize+1;
}else{
sheetNum = length/sheetSize;
}
conn.close();
conn = null;
查詢(xún)結(jié)束///
//導(dǎo)出excel的名稱(chēng)
String fileName = "test_list.xls";
response.reset();
response.setHeader("Content-Disposition", "attachment; filename=" + fileName);
response.setContentType("application/vnd.ms-excel");
//輸出流
java.io.OutputStream os = response.getOutputStream();
//創(chuàng)建可寫(xiě)工作薄
jxl.write.WritableWorkbook wwb = jxl.Workbook.createWorkbook(os);
for(int kk=0; kk
; kk++){
/創(chuàng)建sheet[kk]開(kāi)始/
//創(chuàng)建可寫(xiě)工作表
jxl.write.WritableSheet ws = wwb.createSheet(("sheet"+kk), kk);
//設(shè)定第一行的行高
ws.setRowView(0,400);
//將第一列的寬度設(shè)為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);
//設(shè)置標(biāo)題開(kāi)始
//設(shè)置寫(xiě)入字體
jxl.write.WritableFont wf = new jxl.write.WritableFont(jxl.write.WritableFont.ARIAL, 11,jxl.write.WritableFont.BOLD, false);
//設(shè)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);
// 把水平對(duì)齊方式指定為左對(duì)齊
wcfF.setAlignment(jxl.format.Alignment.LEFT);
// 把垂直對(duì)齊方式指定為居中對(duì)齊
wcfF.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
//設(shè)置列名
jxl.write.Label labelCF1 = new jxl.write.Label(0, 0, "測(cè)試ID",wcfF);
jxl.write.Label labelCF2 = new jxl.write.Label(1, 0, "測(cè)試名稱(chēng)",wcfF);
jxl.write.Label labelCF3 = null;
labelCF3 = new jxl.write.Label(2, 0, "測(cè)試上線(xiàn)時(shí)間",wcfF);
jxl.write.Label labelCF4 = new jxl.write.Label(3, 0, "別名",wcfF);
jxl.write.Label labelCF5 = new jxl.write.Label(4, 0, "數(shù)量",wcfF);
jxl.write.Label labelCF6 = new jxl.write.Label(5, 0, "狀態(tài)1",wcfF);
jxl.write.Label labelCF7 = new jxl.write.Label(6, 0, "狀態(tài)2",wcfF);
jxl.write.Label labelCF8 = new jxl.write.Label(7, 0, "類(lèi)型",wcfF);
//綁定值
ws.addCell(labelCF1);
ws.addCell(labelCF2);
ws.addCell(labelCF3);
ws.addCell(labelCF4);
ws.addCell(labelCF5);
ws.addCell(labelCF6);
ws.addCell(labelCF7);
ws.addCell(labelCF8);
//設(shè)置標(biāo)題結(jié)束
jxl.write.WritableFont wf1 = new jxl.write.WritableFont(jxl.write.WritableFont.ARIAL, 11,jxl.write.WritableFont.NO_BOLD, false);
//設(shè)置CellFormat
jxl.write.WritableCellFormat wcfF2 = new jxl.write.WritableCellFormat(wf1);
/循環(huán)寫(xiě)excel主體開(kāi)始
for(int i = kk*sheetSize; i< (kk+1)*sheetSize ; i++
){
if(i
){
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;
}
}
/循環(huán)寫(xiě)excel主體結(jié)束
/創(chuàng)建sheet[kk]結(jié)束/
}
//我猜測(cè)數(shù)據(jù)太多時(shí),可能會(huì)導(dǎo)致內(nèi)存溢出
wwb.write();
wwb.close();
os.flush();
os.close();
out.clear();
out = pageContext.pushBody();
}catch(Exception e){
e.printStackTrace();
}
%>
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