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package com.hd.oper;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackInputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.apache.poi.POIXMLDocument;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class Exceloper {
public static void main(String[] args) {
String path2003 = "d:\\Desktop\\夏.xls ";// Excel2003文件路径
String path2007 = "d:\\Desktop\\夏.xls ";// Excel2007文件路径
path2003 = System.getProperties().getProperty("user.dir")
+ File.separator + "Excel" + File.separator + "user_2003.xls";
path2007 = System.getProperties().getProperty("user.dir")
+ File.separator + "Excel" + File.separator + "user_2007.xlsx";
long start2003 = System.currentTimeMillis();
System.out.println("Excel文件路径：" + path2003);
List<User> list2003 = parseExcel(path2003);
System.out.println("解析2003输出总人数：" + list2003.size());
long end2003 = System.currentTimeMillis();
System.out.println("解析Excel2003完毕！共用时" + (end2003 - start2003) + "毫秒！");
long start2007 = System.currentTimeMillis();
System.out.println("Excel文件路径：" + path2007);
List<User> list2007 = parseExcel(path2007);
System.out.println("解析2007输出总人数：" + list2007.size());
long end2007 = System.currentTimeMillis();
System.out.println("解析Excel完毕！共用时" + (end2007 - start2007) + "毫秒！");
System.out.println("》》》》》》》》》》开始执行Excel文件导出：");
buildXSLExcel();// 导出Excel 2003
buildXSLXExcel();// 导出Excel 2007
}
/**
* 根据路径加载解析Excel
*
* @param path
* @return
*/
public static List<User> parseExcel(String path) {
List<User> list = new ArrayList<User>();
File file = null;
InputStream input = null;
Workbook workBook = null;
Sheet sheet = null;
if (path != null && path.length() > 7) {
// 判断文件是否是Excel(2003、2007)
String suffix = path
.substring(path.lastIndexOf("."), path.length());
if (".xls".equals(suffix) || ".xlsx".equals(suffix)) {// 2003后缀或2007后缀
file = new File(path);
try {
input = new FileInputStream(file);
} catch (FileNotFoundException e) {
System.out.println("未找到指定的文件！");
e.printStackTrace();
} catch (Exception e) {
System.out.println("读取Excel文件发生异常！");
e.printStackTrace();
}
if (!input.markSupported()) {
input = new PushbackInputStream(input, 8);
}
try {
if (POIFSFileSystem.hasPOIFSHeader(input)
|| POIXMLDocument.hasOOXMLHeader(input)) {
workBook = WorkbookFactory.create(input);
} else {
System.out.println("非法的输入流：当前输入流非OLE2流或OOXML流！");
}
} catch (IOException e) {
System.out.println("创建表格工作簿对象发生IO异常！原因：" + e.getMessage());
e.printStackTrace();
} catch (InvalidFormatException e) {
// Your InputStream was neither an OLE2 stream, nor an OOXML
// stream.
System.out.println("非法的输入流：当前输入流非OLE2流或OOXML流！");
e.printStackTrace();
}
try {
if (workBook != null) {
int numberSheet = workBook.getNumberOfSheets();
if (numberSheet > 0) {
sheet = workBook.getSheetAt(0);// 获取第一个工作簿(Sheet)的内容【注意根据实际需要进行修改】
list = getExcelContent(sheet);
} else {
System.out.println("目标表格工作簿(Sheet)数目为0！");
}
}
input.close();
} catch (IOException e) {
System.out.println("关闭输入流异常！" + e.getMessage());
e.printStackTrace();
}
} else {
System.out.println("非法的Excel文件后缀！");
}
} else {
System.out.println("非法的文件路径!");
}
return list;
}
/**
* 解析(读取)Excel内容
*
* @param sheet
* @return
*/
@SuppressWarnings("static-access")
public static List<User> getExcelContent(Sheet sheet) {
List<User> list = new ArrayList<User>();
int rowCount = sheet.getPhysicalNumberOfRows();// 总行数
if (rowCount > 1) {
Row titleRow = sheet.getRow(0);// 标题行
for (int i = 1; i < rowCount; i++) {// 遍历行，略过标题行，从第二行开始
Row row = sheet.getRow(i);
User entity = new User();
for (int j = 0; j < 3; j++) {
Cell cell = row.getCell(j);
if (titleRow.getCell(j).getStringCellValue().indexOf("姓名") >= 0) {
if (cell != null
&& cell.getCellType() == cell.CELL_TYPE_STRING) {
entity.setName(cell.getStringCellValue().trim());
}
}
if (titleRow.getCell(j).getStringCellValue().indexOf("性别") >= 0) {
if (cell != null
&& cell.getCellType() == cell.CELL_TYPE_STRING) {
entity.setSex(cell.getStringCellValue().trim());
}
}
if (titleRow.getCell(j).getStringCellValue().indexOf("年龄") >= 0) {
if (cell != null
&& cell.getCellType() == cell.CELL_TYPE_NUMERIC) {
entity.setAge((int) cell.getNumericCellValue());
} else if (cell != null
&& cell.getCellType() == cell.CELL_TYPE_STRING) {
entity.setAge(Integer.parseInt(cell
.getStringCellValue().trim()));
}
}
}
list.add(entity);
}
}
return list;
}
/**
* 生成2003 Excel
*/
public static void buildXSLExcel() {
SimpleDateFormat format = new SimpleDateFormat("yyyyMMddhhmmss");
String now = format.format(new Date());
String basePath = System.getProperties().getProperty("user.dir")
+ File.separator + "Excel" + File.separator;
String exportFileName = "人员信息导出2003_" + now + ".xls";// 导出文件名
List<User> list = parseExcel(basePath + "user_2003.xls");
HSSFWorkbook workBook = null;
String[] cellTitle = { "序号", "姓名", "性别", "年龄" };
try {
workBook = new HSSFWorkbook();// 创建工作薄
HSSFSheet sheet = workBook.createSheet();
workBook.setSheetName(0, "人员信息");// 工作簿名称
HSSFFont font = workBook.createFont();
font.setColor(HSSFFont.COLOR_NORMAL);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
HSSFCellStyle cellStyle = workBook.createCellStyle();// 创建格式
cellStyle.setFont(font);
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 创建第一行标题
HSSFRow titleRow = sheet.createRow((short) 0);// 第一行标题
for (int i = 0, size = cellTitle.length; i < size; i++) {// 创建第1行标题单元格
switch (i) {
case 0:
sheet.setColumnWidth(0, 3000);
break;
case 1:
sheet.setColumnWidth(1, 4000);
break;
case 2:
sheet.setColumnWidth(2, 4000);
break;
case 3:
sheet.setColumnWidth(3, 2000);
break;
}
HSSFCell cell = titleRow.createCell(i, 0);
cell.setCellStyle(cellStyle);
cell.setCellValue(cellTitle[i]);
}
// 从第二行开始写入数据
// 注：此处如果数据过多，会抛出java.lang.IllegalStateException异常：The maximum
// number of cell styles was exceeded.
// You can define up to 4000 styles in a .xls workbook。这是是由于cell
// styles太多create造成，故一般可以把cellstyle设置放到循环外面
if (list != null && !list.isEmpty()) {
HSSFCellStyle style = workBook.createCellStyle();// 创建格式
for (int i = 0, size = list.size(); i < size; i++) {
User entity = list.get(i);
HSSFRow row = sheet.createRow((short) i + 1);
for (int j = 0, length = cellTitle.length; j < length; j++) {
HSSFCell cell = row.createCell(j, 0);// 在上面行索引0的位置创建单元格
cell.setCellType(HSSFCell.CELL_TYPE_STRING);// 定义单元格为字符串类型
switch (j) {// 在单元格中输入一些内容
case 0:// 序号
cell.setCellValue(i + 1);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cell.setCellStyle(style);
break;
case 1:// 姓名
cell.setCellValue(entity.getName());
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cell.setCellStyle(style);
break;
case 2:// 性别
cell.setCellValue(String.valueOf(entity.getSex()));
style.setAlignment(HSSFCellStyle.ALIGN_LEFT);
cell.setCellStyle(style);
break;
case 3:// 年龄
cell.setCellValue(entity.getAge());
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
style.setAlignment(HSSFCellStyle.ALIGN_LEFT);
cell.setCellStyle(style);
break;
}
}
}
}
// 通过文件输出流生成Excel文件
File file = new File(basePath + exportFileName);
FileOutputStream outStream = new FileOutputStream(file);
workBook.write(outStream);
outStream.flush();
outStream.close();
System.out.println("Excel 2003文件导出完成！导出文件路径：" + file.getPath());
/***
* Web形式输出Excel
*
*/
/**
* // 表示以附件的形式把文件发送到客户端 response.setHeader("Content-Disposition",
* "attachment;filename=" + new String((exportFileName).getBytes(),
* "ISO-8859-1"));//设定输出文件头 response.setContentType(
* "application/vnd.ms-excel;charset=UTF-8");// 定义输出类型 //
* 通过response的输出流把工作薄的流发送浏览器形成文件 OutputStream outStream =
* response.getOutputStream(); workBook.write(outStream);
* outStream.flush();
*/
} catch (IOException e) {
System.out.println("生成人员信息Excel发生IO 异常！" + e.getMessage());
e.printStackTrace();
} catch (Exception e) {
System.out.println("文件导出发生异常！异常原因：" + e.getMessage());
e.printStackTrace();
}
}
/**
* 生成2007 Excel
*/
public static void buildXSLXExcel() {
SimpleDateFormat format = new SimpleDateFormat("yyyyMMddhhmmss");
String now = format.format(new Date());
String basePath = System.getProperties().getProperty("user.dir")
+ File.separator + "Excel" + File.separator;
String exportFileName = "人员信息导出2007_" + now + ".xlsx";// 导出文件名
List<User> list = parseExcel(basePath + "user_2003.xls");
XSSFWorkbook workBook = null;
String[] cellTitle = { "序号", "姓名", "性别", "年龄" };
try {
workBook = new XSSFWorkbook();// 创建工作薄
XSSFSheet sheet = workBook.createSheet();
workBook.setSheetName(0, "人员信息");// 工作簿名称
XSSFFont font = workBook.createFont();
font.setColor(XSSFFont.COLOR_NORMAL);
font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD);
XSSFCellStyle cellStyle = workBook.createCellStyle();// 创建格式
cellStyle.setFont(font);
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 创建第一行标题
XSSFRow titleRow = sheet.createRow((short) 0);// 第一行标题
for (int i = 0, size = cellTitle.length; i < size; i++) {// 创建第1行标题单元格
switch (i) {
case 0:
sheet.setColumnWidth(0, 3000);
break;
case 1:
sheet.setColumnWidth(1, 4000);
break;
case 2:
sheet.setColumnWidth(2, 4000);
break;
case 3:
sheet.setColumnWidth(3, 2000);
break;
}
XSSFCell cell = titleRow.createCell(i, 0);
cell.setCellStyle(cellStyle);
cell.setCellType(XSSFCell.CELL_TYPE_STRING);
cell.setCellValue(cellTitle[i]);
}
// 从第二行开始写入数据
// 注：此处如果数据过多，会抛出java.lang.IllegalStateException异常：The maximum
// number of cell styles was exceeded.
// You can define up to 4000 styles in a .xls workbook。这是是由于cell
// styles太多create造成，故一般可以把cellstyle设置放到循环外面
if (list != null && !list.isEmpty()) {
XSSFCellStyle style = workBook.createCellStyle();// 创建格式
for (int i = 0, size = list.size(); i < size; i++) {
User entity = list.get(i);
XSSFRow row = sheet.createRow((short) i + 1);
for (int j = 0, length = cellTitle.length; j < length; j++) {
XSSFCell cell = row.createCell(j, 0);// 在上面行索引0的位置创建单元格
cell.setCellType(XSSFCell.CELL_TYPE_STRING);// 定义单元格为字符串类型
switch (j) {// 在单元格中输入一些内容
case 0:// 序号
cell.setCellValue(i + 1);
style.setAlignment(XSSFCellStyle.ALIGN_CENTER);
cell.setCellStyle(style);
break;
case 1:// 姓名
cell.setCellValue(entity.getName());
style.setAlignment(XSSFCellStyle.ALIGN_CENTER);
cell.setCellStyle(style);
break;
case 2:// 性别
cell.setCellValue(String.valueOf(entity.getSex()));
style.setAlignment(XSSFCellStyle.ALIGN_LEFT);
cell.setCellStyle(style);
break;
case 3:// 年龄
cell.setCellValue(entity.getAge());
cell.setCellType(XSSFCell.CELL_TYPE_NUMERIC);
style.setAlignment(XSSFCellStyle.ALIGN_LEFT);
cell.setCellStyle(style);
break;
}
}
}
}
// 通过文件输出流生成Excel文件
File file = new File(basePath + exportFileName);
FileOutputStream outStream = new FileOutputStream(file);
workBook.write(outStream);
outStream.flush();
outStream.close();
System.out.println("Excel 2007文件导出完成！导出文件路径：" + file.getPath());
/***
* Web形式输出Excel
*
*/
/**
* // 表示以附件的形式把文件发送到客户端 response.setHeader("Content-Disposition",
* "attachment;filename=" + new String((exportFileName).getBytes(),
* "ISO-8859-1"));//设定输出文件头 response.setContentType(
* "application/vnd.ms-excel;charset=UTF-8");// 定义输出类型 //
* 通过response的输出流把工作薄的流发送浏览器形成文件 OutputStream outStream =
* response.getOutputStream(); workBook.write(outStream);
* outStream.flush();
*/
} catch (IOException e) {
System.out.println("生成人员信息Excel发生IO 异常！" + e.getMessage());
e.printStackTrace();
} catch (Exception e) {
System.out.println("文件导出发生异常！异常原因：" + e.getMessage());
e.printStackTrace();
}
}
}
class User {
private String name;
private String sex;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
poi excel
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原文地址：http://www.cnblogs.com/jym-sunshine/p/4912435.html
