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返回目录：excel表格制作
JSL 或者POI都行 楼主可以搜索这方面的例子
当然得需要相关的jar包
java导入导来出源excel实现方法详见：zdhttps://wenku.baidu.com/view/9e4a2be0f61fb7360b4c65a7.html
java中jxl导出数据到excel的例子
import jxl.*;
import jxl.write.*;
import java.io.*;
import java.io.File.*;
import java.util.*;
public class excel
{
public static void main(String[] args)
{
String targetfile = "c:/out.xls";//输出的excel文件名
String worksheet = "List";//输出的excel文件工作表名
String[] title = {"ID","NAME","DESCRIB"};//excel工作表的标题
WritableWorkbook workbook;
try
{
//创建可写入的Excel工作薄,运行生成的文件在tomcat/bin下
//workbook = Workbook.createWorkbook(new File("output.xls"));
System.out.println("begin");
OutputStream os=new FileOutputStream(targetfile);
workbook=Workbook.createWorkbook(os);
WritableSheet sheet = workbook.createSheet(worksheet, 0); //添加第一个工作表
//WritableSheet sheet1 = workbook.createSheet("MySheet1", 1); //可添加第二个工作
/*
jxl.write.Label label = new jxl.write.Label(0, 2, "A label record"); //put a label in cell A3, Label(column,row)
sheet.addCell(label);
*/
jxl.write.Label label;
for (int i=0; i<title.length; i++)
{
//Label(列号,行号 ,内容 )
label = new jxl.write.Label(i, 0, title[i]); //put the title in row1
sheet.addCell(label);
}
//下列添加的对字体等的设置7a686964616fe59b9ee7ad94339均调试通过，可作参考用
//添加数字
jxl.write.Number number = new jxl.write.Number(3, 4, 3.14159); //put the number 3.14159 in cell D5
sheet.addCell(number);
//添加带有字型Formatting的对象
jxl.write.WritableFont wf = new jxl.write.WritableFont(WritableFont.TIMES,10,WritableFont.BOLD,true);
jxl.write.WritableCellFormat wcfF = new jxl.write.WritableCellFormat(wf);
jxl.write.Label labelCF = new jxl.write.Label(4,4,"文本",wcfF);
sheet.addCell(labelCF);
//添加带有字体颜色,带背景颜色 Formatting的对象
jxl.write.WritableFont wfc = new jxl.write.WritableFont(WritableFont.ARIAL,10,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED);
jxl.write.WritableCellFormat wcfFC = new jxl.write.WritableCellFormat(wfc);
wcfFC.setBackground(jxl.format.Colour.BLUE);
jxl.write.Label labelCFC = new jxl.write.Label(1,5,"带颜色",wcfFC);
sheet.addCell(labelCFC);
//添加带有formatting的Number对象
jxl.write.NumberFormat nf = new jxl.write.NumberFormat("#.##");
jxl.write.WritableCellFormat wcfN = new jxl.write.WritableCellFormat(nf);
jxl.write.Number labelNF = new jxl.write.Number(1,1,3.1415926,wcfN);
sheet.addCell(labelNF);
//3.添加Boolean对象
jxl.write.Boolean labelB = new jxl.write.Boolean(0,2,false);
sheet.addCell(labelB);
//4.添加DateTime对象
jxl.write.DateTime labelDT = new jxl.write.DateTime(0,3,new java.util.Date());
sheet.addCell(labelDT);
//添加带有formatting的DateFormat对象
jxl.write.DateFormat df = new jxl.write.DateFormat("ddMMyyyyhh:mm:ss");
jxl.write.WritableCellFormat wcfDF = new jxl.write.WritableCellFormat(df);
jxl.write.DateTime labelDTF = new jxl.write.DateTime(1,3,new java.util.Date(),wcfDF);
sheet.addCell(labelDTF);
//和宾单元格
//sheet.mergeCells(int col1,int row1,int col2,int row2);//左上角到右下角
sheet.mergeCells(4,5,8,10);//左上角到右下角
wfc = new jxl.write.WritableFont(WritableFont.ARIAL,40,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.GREEN);
jxl.write.WritableCellFormat wchB = new jxl.write.WritableCellFormat(wfc);
wchB.setAlignment(jxl.format.Alignment.CENTRE);
labelCFC = new jxl.write.Label(4,5,"单元合并",wchB);
sheet.addCell(labelCFC); //
//设置边框
jxl.write.WritableCellFormat wcsB = new jxl.write.WritableCellFormat();
wcsB.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.THICK);
labelCFC = new jxl.write.Label(0,6,"边框设置",wcsB);
sheet.addCell(labelCFC);
workbook.write();
workbook.close();
}catch(Exception e)
{
e.printStackTrace();
}
System.out.println("end");
Runtime r=Runtime.getRuntime();
Process p=null;
//String cmd[]={"notepad","exec.java"};
String cmd[]={"C:\\Program Files\\Microsoft Office\\Office\\EXCEL.EXE","out.xls"};
try{
p=r.exec(cmd);
}
catch(Exception e){
System.out.println("error executing: "+cmd[0]);
}
}
}
public class ExcelExport {
/**
* 默认每个sheet页最多显示的行数
*/
private static final int sheet_rows = 50000;
/**
* 导出Excel文件
*
* @param titleList
* 表头信息
* @param dataList
* 表格数据
* @param fileName
* 导出文件完整名称 demo.xls
* @param request
* @param response
* @throws IOException
*/
public static void exportExcelFile(List<String> titleList,
7a64e59b9ee7ad94330 List<List<String>> dataList, String fileName,
HttpServletRequest request, HttpServletResponse response)
throws IOException {
HSSFWorkbook workBook = exportDataToExcel(titleList, dataList);
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("UTF-8");
fileName = encodeFilename(fileName, request);
response.setHeader("Content-disposition", "attachment;filename=" + fileName);
workBook.write(response.getOutputStream());
response.getOutputStream().flush();
response.getOutputStream().close();
}
public static String encodeFilename(String filename, HttpServletRequest request) {
String agent = request.getHeader("USER-AGENT");
try {
if ((agent != null) && ( 0 <= agent.indexOf("Firefox"))) {
return MimeUtility.encodeText(filename, "UTF-8", "B");
} else if((agent != null) && ( 0 <= agent.indexOf("Chrome"))){
return filename = new String(filename.getBytes(), "ISO8859-1");
}
else {
if (agent != null) {
String newFileName = URLEncoder.encode(filename, "UTF-8");
newFileName = StringUtils.replace(newFileName, "+", "%20");
if (newFileName.length() > 150) {
newFileName = new String(filename.getBytes("GB2312"),
"ISO8859-1");
newFileName = StringUtils.replace(newFileName, " ",
"%20");
}
return newFileName;
}
}
} catch (Exception ex) {
return filename;
}
return filename;
}
public static HSSFWorkbook exportDataToExcel(List<String> titleList, List<List<String>> dataList) {
/* 1.创建一个Excel文件 */
HSSFWorkbook workbook = new HSSFWorkbook();
/* 2.创建Excel的一个Sheet */
HSSFSheet sheet = workbook.createSheet();
/* 3.创建表头冻结 */
sheet.createFreezePane(0, 1);
/* 4.设置列宽 */
for (int i = 0; i < titleList.size(); i++) {
sheet.setColumnWidth(i, 5000);
}
/* 5.表头字体 */
HSSFFont headfont = workbook.createFont();
headfont.setFontName("宋体");
headfont.setFontHeightInPoints((short) 12);// 字体大小
headfont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);// 加粗
/* 6.表头样式 */
HSSFCellStyle headstyle = workbook.createCellStyle();
headstyle.setFont(headfont);
headstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
// 设置背景色为蓝色
headstyle.setFillForegroundColor(HSSFColor.LIGHT_BLUE.index);
headstyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
/* 7.普通单元格字体 */
HSSFFont font = workbook.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) 12);
/* 8.普通单元格样式 */
HSSFCellStyle style = workbook.createCellStyle();
style.setFont(font);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
/* 9. 拼装表头 */
Iterator<String> titleRowIterator = titleList.iterator();
int columnIndex = 0;
HSSFRow row = sheet.createRow(0);
while (titleRowIterator.hasNext()) {
String cellValue = titleRowIterator.next();
HSSFCell cell = row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(headstyle);
columnIndex++;
cell = null;
}
/* 10.组织表数据 */
Iterator<List<String>> rowIterator = dataList.iterator();
int rowIndex = 1;
while (rowIterator.hasNext()) {
List<String> columnList = rowIterator.next();
row = sheet.createRow(rowIndex);
Iterator<String> columnIterator = columnList.iterator();
columnIndex = 0;
while (columnIterator.hasNext()) {
String cellValue = columnIterator.next();
HSSFCell cell = row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(style);
cell = null;
columnIndex++;
}
row = null;
rowIndex++;
}
return workbook;
}
/**
* 重载导出数据到Excel中
* @param titleList 表头
* @param dataList 表数据
* @param amount 每个sheet页显示行数
* @return
*/
public static HSSFWorkbook exportDataToExcel(List<String> titleList, List<List<String>> dataList, int amount) {
/* 1.创建一个Excel文件 */
HSSFWorkbook workbook = new HSSFWorkbook();
//校验传入的参数
if(titleList==null){
titleList = new ArrayList<String>();
}
//无数据直接返回
if(dataList==null || dataList.size()==0){
return workbook;
}
//传入数据不正确，按照默认条数显示
if(amount>65535 || amount<=0){
amount = sheet_rows;
}
//获取sheet页的数量
int row_num = 0;
int y = dataList.size()%amount;
if(y == 0){
row_num = dataList.size()/amount;
}else{
row_num = dataList.size()/amount + 1;
}
/* 表头字体 */
HSSFFont headfont = workbook.createFont();
headfont.setFontName("宋体");
headfont.setFontHeightInPoints((short) 12);// 字体大小
headfont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);// 加粗
/* 表头样式 */
HSSFCellStyle headstyle = workbook.createCellStyle();
headstyle.setFont(headfont);
headstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
// 设置背景色为蓝色
headstyle.setFillForegroundColor(HSSFColor.LIGHT_BLUE.index);
headstyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
/* 普通单元格字体 */
HSSFFont font = workbook.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) 12);
/* 普通单元格样式 */
HSSFCellStyle style = workbook.createCellStyle();
style.setFont(font);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
//循环写入每个sheet页
for(int i=0;i<row_num;i++){
/* 创建Excel的一个Sheet */
HSSFSheet sheet = workbook.createSheet();
/* 创建表头冻结 */
sheet.createFreezePane(0, 1);
/* 设置列宽 */
for (int t = 0; t < titleList.size(); t++) {
sheet.setColumnWidth(t, 5000);
}
/* 拼装表头 */
Iterator<String> titleRowIterator = titleList.iterator();
int columnIndex = 0;
HSSFRow row = sheet.createRow(0);
while (titleRowIterator.hasNext()) {
String cellValue = titleRowIterator.next();
HSSFCell cell = row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(headstyle);
columnIndex++;
cell = null;
}
/* 组织表数据 */
int rowIndex = 1;
for (int j=amount*i;(j<amount*(i+1)&&j<dataList.size());j++) {
List<String> columnList = dataList.get(j);
row = sheet.createRow(rowIndex);
Iterator<String> columnIterator = columnList.iterator();
columnIndex = 0;
while (columnIterator.hasNext()) {
String cellValue = columnIterator.next();
HSSFCell cell = row.createCell(columnIndex);
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellValue);
cell.setCellStyle(style);
cell = null;
columnIndex++;
}
row = null;
rowIndex++;
}
}
return workbook;
}
/**
* 重载导出Excel功能,新增一项amount每个sheet导出记录行数
* @param titleList
* @param dataList
* @param fileName
* @param amount 行数如果小于等于0或大于65535则按照默认显示
* @param request
* @param response
* @throws IOException
*/
public static void exportExcelFile(List<String> titleList,
List<List<String>> dataList, String fileName, int amount,
HttpServletRequest request, HttpServletResponse response)
throws IOException {
HSSFWorkbook workBook = exportDataToExcel(titleList, dataList, amount);
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("UTF-8");
fileName = encodeFilename(fileName, request);
response.setHeader("Content-disposition", "attachment;filename=" + fileName);
workBook.write(response.getOutputStream());
response.getOutputStream().flush();
response.getOutputStream().close();
}
}
说明：main方法里的第一个参数为要导出的表头信息，
第二个参数为数据信息，
第三个参数设置文件名，设置好以后直接调用就可以导出Excle了;
导入就是把文件存到服务器，可用Mogodb等数据库存储，以下是读取已存根据存储的文件id解析Excle数据的大致过程：
POIFSFileSystem fs = null;
if (!StringUtils.isBlank(fileId)) {
fs = new POIFSFileSystem(new ByteArrayInputStream(
//传入对应的文件对象
MongoFileUtil.readFile(fileId)));
}
// 构造 XSSFWorkbook 对象，filePath 传入文件路径
HSSFWorkbook xwb = new HSSFWorkbook(fs);
// 读取第一个sheet
HSSFSheet sheet = xwb.getSheetAt(0);
for (int i = sheet.getFirstRowNum() + 1; i < sheet.getPhysicalNumberOfRows();i++){
//解析每行的数据
HSSFRow singleRow = sheet.getRow(i);
//解析每个单元格数据
singleRow.getCell(0).setCellType(Cell.CELL_TYPE_STRING);
String cellValue= singleRow.getCell(0).getStringCellValue();
}