java处理Excel相关笔记

String name = file.getFilename();
name = name.replaceAll("(&|=|,)", "");
response.setHeader("Content-Disposition", "Attachment; Filename=" + name);
response.setContentType(file.getContentType());
IOUtils.copy(file.getInputStream(), response.getOutputStream());
response.flushBuffer();

复制代码

// 构建输出流
response.reset();
final String attachmentHeader = "Attachment; Filename*=utf-8''"
+ URLEncoder.encode(project.getName() + ".xls", "UTF-8").replaceAll("\\+", "%20");
response.setHeader("Content-disposition", attachmentHeader);
response.setContentType("application/msexcel");
// 生成工作表
WritableWorkbook wwb = Workbook.createWorkbook(response.getOutputStream());
WritableSheet sheet = wwb.createSheet("任务列表", 1);
// 格式化文本
WritableFont font1 = new WritableFont(WritableFont.TIMES, 12, WritableFont.BOLD);
WritableCellFormat format1 = new WritableCellFormat(font1);
format1.setAlignment(jxl.format.Alignment.CENTRE);
format1.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
// 表格大小
sheet.setColumnView(0, 20);
// 表头
sheet.addCell(new Label(0, 0, "任务名称", format1));
// 任务列表
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd HH:mm");
for (int i = 1; i <= taskList.size(); i++) {
ProjectTask pt = taskList.get(i - 1);
sheet.addCell(new Label(0, i, pt.getName(), format2));
}
// 关闭输出流
wwb.write();
wwb.close();

//初始化工作表输出流
String title="工程项目导出";
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-disposition", "attachment;filename="+new String(title.getBytes("GB2312"),"ISO8859_1") +".xls");
//标题有中文必须转码 ，attachment：显示另存为对话框inline：尝试用已知关联的程序打开。
WritableWorkbook workbook;
OutputStream ouputStream = response.getOutputStream();
workbook = Workbook.createWorkbook(ouputStream);
WritableSheet sheet = workbook.createSheet("工程列表", 0);
sheet.setColumnView(0, 5);    //设置宽度
jxl.write.WritableFont wfont = new jxl.write.WritableFont(WritableFont.createFont("宋体"), 10);//设置字体
WritableCellFormat wc = new WritableCellFormat(wfont);
wc.setAlignment(Alignment.CENTRE);                 // 设置居中
wc.setBackground(jxl.format.Colour.LIGHT_GREEN); // 设置单元格的背景颜色
//工作表内容 - Label label
sheet.addCell(new jxl.write.Label(0, 0,"序号",wc));
sheet.addCell(new jxl.write.Label(13, 0,"任务状态",wc));
for (int i = 1; i <= omProjectList.size(); i++) {
OmProject omProject = omProjectList.get(i-1);
sheet.addCell(new jxl.write.Number(0, i,i));
sheet.addCell(new jxl.write.Label(1, i,omProject.getAcceptDate()));
}
//关闭工作表输出流
workbook.write();
workbook.close();
ouputStream.flush();
ouputStream.close();

FileInputStream inputStream = new FileInputStream(importFile);
FileOutputStream outputStream = new FileOutputStream(filePath);
byte[] buf = new byte[1024];
int length = 0;
while ((length = inputStream.read(buf)) != -1) {
outputStream.write(buf, 0, length);
}
inputStream.close();
outputStream.flush();

Workbook workbook =  Workbook.getWorkbook(new File(filePath));
Sheet[] sheets = work
b406
book.getSheets();
if (sheets != null && sheets.length > 0) {
Sheet sheet = sheets[0];
int rowSize = sheet.getRows();
for (int j = 1; j < rowSize; j++) {
Cell[] psCells = sheet.getRow(j);
String content = psCells[k].getContents();
}