POI3.8组件研究（三）---基于User API (HSSF and XSSF)解析Excel2003和2007文件
POI3.8解析相关的jar文件如下：
<classpathentry kind="lib" path="libs/commons-logging-1.1.jar"/>
<classpathentry kind="lib" path="libs/dom4j-1.6.1.jar"/>
<classpathentry kind="lib" path="libs/poi-3.8-20120326.jar"/>
<classpathentry kind="lib" path="libs/poi-excelant-3.8-20120326.jar"/>
<classpathentry kind="lib" path="libs/poi-ooxml-3.8-20120326.jar"/>
<classpathentry kind="lib" path="libs/poi-ooxml-schemas-3.8-20120326.jar"/>
<classpathentry kind="lib" path="libs/poi-scratchpad-3.8-20120326.jar"/>
<classpathentry kind="lib" path="libs/stax-api-1.0.1.jar"/>
<classpathentry kind="lib" path="libs/xmlbeans-2.3.0.jar"/>
<classpathentry kind="lib" path="libs/commons-collections-3.2.jar"/>
<classpathentry kind="lib" path="libs/commons-lang-2.5.jar"/>
<classpathentry kind="lib" path="libs/json-lib-2.4-jdk15.jar"/>
<classpathentry kind="lib" path="libs/commons-beanutils-1.8.2.jar"/>
<classpathentry kind="lib" path="libs/ezmorph-1.0.6.jar"/>
Excel的模型如下：
package com.easyway.excel.model;
import java.util.List;
/**
*
* @Title:
* @Description: 实现Excel中WorkBook模型
* @Copyright:Copyright (c) 2011
* @Company:易程科技股份有限公司
* @Date:2012-4-13
* @author longgangbai
* @version 1.0
*/
public class ExcelVO {
private String path;
private List<SheetVO> sheets;
private String prefix;
public String getPrefix() {
return prefix;
}
public void setPrefix(String prefix) {
this.prefix = prefix;
}
public String getPath() {
return path;
}
public void setPath(String path) {
this.path = path;
}
public List<SheetVO> getSheets() {
return sheets;
}
public void setSheets(List<SheetVO> sheet) {
this.sheets = sheet;
}
}
Sheet的模型如下：
package com.easyway.excel.model;
import java.util.List;
import java.util.Map;
import org.apache.poi.ss.usermodel.CellStyle;
/**
*
* @Title:
* @Description: 实现Excel Sheet的模型
* @Copyright:Copyright (c) 2011
* @Company:易程科技股份有限公司
* @Date:2012-4-13
* @author longgangbai
* @version 1.0
*/
public class SheetVO {
private String title; //Sheet中标题
private String[] headerTitle; //表中中的表头
private List<Map<String,Object>> sheetContentMap;//表中的数据
private String[] titles;//绑定的标题头
private int rowNum; //表头起始的行数
private String sheetName; //sheet的名称
private Map<String,CellStyle> styles ;
public String[] getHeaderTitle() {
return headerTitle;
}
public void setHeaderTitle(String[] headerTitle) {
this.headerTitle = headerTitle;
}
public List<Map<String, Object>> getSheetContentMap() {
return sheetContentMap;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getRowNum() {
return rowNum;
}
public void setRowNum(int rowNum) {
this.rowNum = rowNum;
}
public void setSheetContentMap(List<Map<String, Object>> sheetContentMap) {
this.sheetContentMap = sheetContentMap;
}
public String getSheetName() {
return sheetName;
}
public void setSheetName(String sheetName) {
this.sheetName = sheetName;
}
public String[] getTitles() {
return titles;
}
public void setTitles(String[] titles) {
this.titles = titles;
}
public Map<String, CellStyle> getStyles() {
return styles;
}
public void setStyles(Map<String, CellStyle> styles) {
this.styles = styles;
}
}
POI解析的接口如下：
package com.easyway.excel.tools;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import com.easyway.excel.model.ExcelVO;
/**
* Excel 97~2003和2007的读写方式
* 1.ss=xssf + hssf
* 2.poi的jar文件必须高于3.5版本才支持。
* 3.jdk的版本必须高于等于1.5
*
*
* HSSF is the POI Project's pure Java implementation of the Excel '97(-2007) file format. XSSF is the POI Project's pure Java implementation of the Excel 2007 OOXML (.xlsx) file format.
* HSSF and XSSF provides ways to read spreadsheets create, modify, read and write XLS spreadsheets. They provide:
* low level structures for those with special needs
* an eventmodel api for efficient read-only access
* a full usermodel api for creating, reading and modifying XLS files
*
*
*
* @Title:
* @Description: 实现TODO
* @Copyright:Copyright (c) 2011
* @Company:易程科技股份有限公司
* @Date:2012-6-13
* @author longgangbai
* @version 1.0
*/
public interface IExcelService<T> {
/**
* 创建TableView类型的Excel文件
* @param excelVo excel模型
* @throws IOException
*/
public void createTableViewerExcelFile(ExcelVO excelVo) throws IOException;
/**
* 创建TableView类型的Excel文件
* @param excelVo excel模型
* @throws IOException
*/
public InputStream createTableViewerExcelStream(ExcelVO excelVo) throws IOException;
/**
* 以Map的格式存储数�?
* 读取Excel文件的数�?
* @param filePath excel 文件的
* @param headTitle
* @return
*/
public Map<String,List<Map<String,Object>>> readEXCELMap(String filePath,String[] headTitle);
/**
*
* 以Bean的方式存储bean对象
* 读取Excel文件的数�?
* @param filePath excel 文件的路�?
* @param headTitle
* @param clazz
* @return
*/
public Map<String,List<T>> readEXCELBean(String filePath,String[] headTitle,Class<T> clazz);
}
实现类如下：
package com.easyway.excel.tools;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
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.lang.reflect.InvocationTargetException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.sf.json.JSONArray;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.MapUtils;
import org.apache.commons.lang.ArrayUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CreationHelper;
import org.apache.poi.ss.usermodel.DataFormat;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.IndexedColors;
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.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import com.easyway.excel.model.ExcelVO;
import com.easyway.excel.model.SheetVO;
/**
*
*
* @Title:
* @Description: 实现读取Excel的服务 Excel 97-2003和2007 版本
* @Copyright:Copyright (c) 2011
* @Company:易程科技股份有限公司
* @Date:2012-6-13
* @author longgangbai
* @version 1.0
*/
public class ExcelService<T> implements IExcelService<T> {
/**
* 以Map的格式存储数�?
* 读取Excel文件的数�?
* @param filePath excel 文件的
* @param headTitle
* @return
*/
public Map<String,List<Map<String,Object>>> readEXCELMap(String filePath,String[] headTitle){
//获取workbook对象
Workbook workbook=getExcelWorkBook(filePath);
//获取sheet页数
int sheetNum=workbook.getNumberOfSheets();
//存储excel相关的数�?
Map<String,List<Map<String,Object>>> excelData=new HashMap<String,List<Map<String,Object>>>();
//遍历相关sheet页面获取相关的数�?
if(sheetNum>0){
for (int index = 0; index < sheetNum; index++) {
//创建sheet
Sheet sheet=workbook.getSheetAt(index);
//获取sheet的名�?
String sheetName=workbook.getSheetName(index);
//获取相关的数�?
List<Map<String,Object>> sheetData=getExcelMapData(sheet, headTitle);
excelData.put(sheetName, sheetData);
}
}
return excelData;
}
/**
*
* 以Bean的方式存储bean对象
* 读取Excel文件的数�?
* @param filePath excel 文件的路
* @param headTitle
* @param clazz
* @return
*/
public Map<String,List<T>> readEXCELBean(String filePath,String[] headTitle,Class<T> clazz){
//获取workbook对象
Workbook workbook=getExcelWorkBook(filePath);
//获取sheet页数
int sheetNum=workbook.getNumberOfSheets();
//存储excel相关的数�?
Map<String,List<T>> excelData=new HashMap<String,List<T>>();
//遍历相关sheet页面获取相关的数�?
if(sheetNum>0){
for (int index = 0; index < sheetNum; index++) {
//创建sheet
Sheet sheet=workbook.getSheetAt(index);
//获取sheet的名�?
String sheetName=workbook.getSheetName(index);
//获取相关的数�?
List<T> sheetData=getExcelBeanData(sheet, headTitle,clazz);
excelData.put(sheetName, sheetData);
}
}
return excelData;
}
/**
* 获取sheet表中的数�?
* @param sheet
* @param sheet�?eadTitle bean每列对应的属性数�?
* @param clazz bean对应的类
* @throws InstantiationException
*/
@SuppressWarnings("unused")
private List<T> getExcelBeanData(Sheet sheet,String[] headTitle,Class<T> clazz) {
//获取�?��和结束行
int startRow=sheet.getFirstRowNum();
int lastRow=sheet.getLastRowNum();
List<T> allRowMapData=new ArrayList<T>();
if(startRow!=lastRow){
//忽略第一行数�?
startRow=startRow+1;
//获取行数�?
for(int indexRow=startRow;indexRow<lastRow;indexRow++){
Row row=sheet.getRow(indexRow);
if(row==null){
continue;
}
int firstCellNum=row.getFirstCellNum();
int lastCellNum=row.getLastCellNum();
T bean=null;
try {
bean = clazz.newInstance();
//遍历相关的列数据
for (int indexCol = firstCellNum; indexCol <lastCellNum; indexCol++) {
Cell cell=row.getCell(indexCol);
//indexCol=11 firstCellNum 0 lastCellNum=11
//System.out.println("indexCol="+indexCol+"firstCellNum "+firstCellNum+" lastCellNum="+lastCellNum+" headTitle.length"+headTitle.length);
String cellKey=headTitle[indexCol-firstCellNum];
if(cell==null){
continue;
}
//获取列的数据的信�?
Object cellValue = getCellValue(cell);
try {
BeanUtils.setProperty(bean, cellKey, cellValue);
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
allRowMapData.add(bean);
} catch (InstantiationException e1) {
e1.printStackTrace();
} catch (IllegalAccessException e1) {
e1.printStackTrace();
}
}
}
return allRowMapData;
}
/**
* 获取sheet表中的数�?
* @param sheet
* @return�?eadTitle 格式�?.1.2....列标做为key
*/
private List<Map<String,Object>> getExcelMapData(Sheet sheet,String[] headTitle){
//获取�?��和结束行
int startRow=sheet.getFirstRowNum();
int lastRow=sheet.getLastRowNum();
List<Map<String,Object>> allRowMapData=new ArrayList<Map<String,Object>>();
if(startRow!=lastRow){
//忽略第一行数�?
startRow=startRow+1;
//获取行数�?
for(int indexRow=startRow;indexRow<lastRow;indexRow++){
Row row=sheet.getRow(indexRow);
if(row==null){
continue;
}
int firstCellNum=row.getFirstCellNum();
int lastCellNum=row.getLastCellNum();
Map<String,Object> RowDataMap=new HashMap<String,Object>();
//遍历相关的列数据
for (int indexCol = firstCellNum; indexCol <lastCellNum; indexCol++) {
Cell cell=row.getCell(indexCol);
String cellKey=headTitle[indexCol-firstCellNum];
if(cell==null){
continue;
}
//获取列的数据的信�?
Object cellValue = getCellValue(cell);
RowDataMap.put(cellKey, cellValue);
}
allRowMapData.add(RowDataMap);
}
}
return allRowMapData;
}
/**
* 获取列的数据信息
* @param cell
* @return
*/
private Object getCellValue(Cell cell) {
Object cellValue=null;
switch (cell.getCellType()) {
case Cell.CELL_TYPE_BLANK:
cellValue = "";
break;
case Cell.CELL_TYPE_ERROR:
cellValue = Byte.toString(cell.getErrorCellValue());
break;
case Cell.CELL_TYPE_STRING:
cellValue= cell.getRichStringCellValue().getString();
break;
/** 在excel�?日期也是数字,在此要进行判�?*/
case Cell.CELL_TYPE_NUMERIC:
double number=cell.getNumericCellValue();
if (DateUtil.isCellDateFormatted(cell)) {
cellValue =getTime(number);
} else {
cellValue= Integer.toString((int) cell.getNumericCellValue());
}
break;
case Cell.CELL_TYPE_BOOLEAN:
cellValue= Boolean.toString(cell.getBooleanCellValue());
break;
case Cell.CELL_TYPE_FORMULA:
cellValue= cell.getCellFormula();
break;
default:
cellValue = "";
}
return cellValue;
}
/**
* [正确地处理整数后自动加零的情况]</li>
* @param sNum
* @return
*/
private static String getTime(double daynum)
{
double totalSeconds=daynum*86400.0D;
//总的分钟数
int seconds =(int)totalSeconds/60;
//实际小时数
int hours =seconds/60;
int minutes = seconds-hours*60;
//剩余的实际分钟数
StringBuffer sb=new StringBuffer();
if(String.valueOf(hours).length()==1){
sb.append("0"+hours);
}else{
sb.append(hours);
}
sb.append(":");
if(String.valueOf(minutes).length()==1){
sb.append("0"+minutes);
}else{
sb.append(minutes);
}
return sb.toString();
} /**
* 根据文件的路径创建Workbook对象
* @param filePath
*/
private Workbook getExcelWorkBook(String filePath) {
InputStream ins = null;
Workbook book = null;
try {
ins=new FileInputStream(new File(filePath));
//ins= ExcelService.class.getClassLoader().getResourceAsStream(filePath);
book = WorkbookFactory.create(ins);
ins.close();
return book;
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (InvalidFormatException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (ins != null) {
try {
ins.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
/**
* 创建TableView类型的Excel文件
* @param excelVo excel模型
* @throws IOException
*/
public void createTableViewerExcelFile(ExcelVO excelVo) throws IOException{
//创建一个EXCEL
Workbook wb =null;
//支持2007
if("xlsx".equals(excelVo.getPrefix())){
wb=new XSSFWorkbook();
//支持97 ~2003
}else{
wb=new HSSFWorkbook();
}
List<SheetVO> sheetList=excelVo.getSheets();
if(CollectionUtils.isNotEmpty(sheetList)){
for (int sheet = 0; sheet < sheetList.size(); sheet++) {
createExcelSheet(wb, sheetList, sheet);
}
}
//仅作测试在本地生成文件
FileOutputStream fileOut = new FileOutputStream(excelVo.getPath());
wb.write(fileOut);
fileOut.flush();
fileOut.close();
}
/**
* 创建TableView类型的Excel文件
* @param excelVo excel模型
* @throws IOException
*/
public InputStream createTableViewerExcelStream(ExcelVO excelVo) throws IOException{
//创建一个EXCEL
Workbook wb =null;
//支持2007
if("xlsx".equals(excelVo.getPrefix())){
wb=new XSSFWorkbook();
//支持97 ~2003
}else{
wb=new HSSFWorkbook();
}
List<SheetVO> sheetList=excelVo.getSheets();
if(CollectionUtils.isNotEmpty(sheetList)){
for (int sheet = 0; sheet < sheetList.size(); sheet++) {
createExcelSheet(wb, sheetList, sheet);
}
}
//存储流信息
ByteArrayOutputStream out = new ByteArrayOutputStream();
wb.write(out);
//临时存储流信息
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
out.close();
return in;
}
/**
* 创建Excel的Sheet
* @param wb Excel的对象
* @param sheetList
* @param sheetNum
*/
private void createExcelSheet(Workbook wb, List<SheetVO> sheetList, int sheetNum) {
SheetVO sheetVo=sheetList.get(sheetNum);
//获取各种样式
//获取数据格式化对象
DataFormat dataformat = wb.createDataFormat();
//获取Sheet的名称
String sheetName=sheetVo.getSheetName();
//创建Sheet
Sheet sheet=wb.createSheet(sheetName);
// create 2 cell styles
CellStyle cs = wb.createCellStyle();
CellStyle cs2 = wb.createCellStyle();
DataFormat df = wb.createDataFormat();
// create 2 fonts objects
Font f = wb.createFont();
Font f2 = wb.createFont();
// Set font 1 to 12 point type, blue and bold
f.setFontHeightInPoints((short) 12);
f.setColor( IndexedColors.RED.getIndex() );
f.setBoldweight(Font.BOLDWEIGHT_BOLD);
// Set font 2 to 10 point type, red and bold
f2.setFontHeightInPoints((short) 10);
f2.setColor( IndexedColors.RED.getIndex() );
f2.setBoldweight(Font.BOLDWEIGHT_BOLD);
// Set cell style and formatting
cs.setFont(f);
cs.setDataFormat(df.getFormat("#,##0.0"));
// Set the other cell style and formatting
cs2.setBorderBottom(cs2.BORDER_THIN);
cs2.setDataFormat(df.getFormat("text"));
cs2.setFont(f2);
//获取开始写的行号
int rowNum=sheetVo.getRowNum();
//创建标题
Row headerRow = sheet.createRow(0);
headerRow.setHeightInPoints(40.0F);
Cell titleCell = headerRow.createCell(0);
titleCell.setCellValue(sheetVo.getTitle());
sheet.addMergedRegion(CellRangeAddress.valueOf("$A$1:$T$1"));
CreationHelper createHelper = wb.getCreationHelper();
String[] headerTitles=sheetVo.getHeaderTitle();
if(!ArrayUtils.isEmpty(headerTitles)){
//创建表头
Row row = sheet.createRow((short)rowNum);
for (int index=0; index < headerTitles.length; index++) {
//创建列信息
String headerTitle=headerTitles[index];
Cell cell = row.createCell(index);
cell.setCellValue(createHelper.createRichTextString(headerTitle));
//设置列宽，行高
sheet.setColumnWidth((short)index, 5000);
}
//行记录添加
rowNum++;
}
//编写shett的内容
List<Map<String,Object>> contentMap=sheetVo.getSheetContentMap();
if(CollectionUtils.isNotEmpty(contentMap)){
for (int index = 0; index < contentMap.size(); index++) {
Map<String,Object> rowMap=contentMap.get(index);
Row row = sheet.createRow((short)rowNum);
createCell(wb, dataformat, rowMap, row,sheetVo);
rowNum++;
}
}
}
/**
* 创建Excel的Cell
* @param wb
* @param dataformat
* @param rowMap
* @param row
*/
private void createCell(Workbook wb, DataFormat dataformat,
Map<String, Object> rowMap, Row row,SheetVO sheetVo) {
String[] headerTitles=sheetVo.getTitles();
if(MapUtils.isNotEmpty(rowMap)){
CreationHelper createHelper = wb.getCreationHelper();
for (int cellNum=0;cellNum<headerTitles.length;cellNum++) {
CellStyle style;
//创建列值
Cell cell = row.createCell(cellNum);
String key=headerTitles[cellNum];
Object cellValue=rowMap.get(key);
if(cellValue instanceof String){
cell.setCellValue(createHelper.createRichTextString((String)cellValue));
}else if((cellValue instanceof Integer)||(cellValue instanceof Long)){
cell.setCellValue(createHelper.createRichTextString(cellValue.toString()));
//针对带小数点的数据的处理
}else if((cellValue instanceof Double)||(cellValue instanceof Float)){
cell.setCellValue(Double.valueOf(cellValue.toString()));
style = wb.createCellStyle();
style.setDataFormat(dataformat.getFormat("#.##"));
//设定样式
cell.setCellStyle(style);
//针对Date格式
}else if(cellValue instanceof Date){
/*
* 定义显示日期的公共格式
* 如:yyyy-MM-dd hh:mm
* */
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String newdate = sdf.format(new Date());
// 填充出产日期
cell.setCellValue(createHelper.createRichTextString(newdate));
}else if(cellValue instanceof Boolean){
cell.setCellValue((Boolean)cellValue);
}
}
}
}
/**
* 测试数据
* @param args
*/
public static void writeExcel() throws Exception {
//创建一个EXCEL
ExcelVO excelVo=new ExcelVO();
excelVo.setPath("C:\\test_poi.xlsx");
excelVo.setPrefix("xlsx");
List<SheetVO> sheetInfoList=new ArrayList<SheetVO>();
for (int i = 0; i < 1; i++) {
SheetVO sheetVo=new SheetVO();
sheetVo.setHeaderTitle(new String[]{"问题编号","项目名称","项目问题数量"});
sheetVo.setRowNum(1);
sheetVo.setTitles(new String[]{"0","1","2"});
sheetVo.setSheetName("项目名称"+i);
sheetVo.setTitle("易程股份有限公司");
List<Map<String, Object>> sheetContentMap=new ArrayList<Map<String, Object>>();
for (int j = 0; j <20; j++) {
Map<String, Object> map=new HashMap<String,Object>();
map.put("0", "问题"+j);
map.put("1", "项目名称"+i);
map.put("2", j+"");
sheetContentMap.add(map);
}
sheetVo.setSheetContentMap(sheetContentMap);
sheetInfoList.add(sheetVo);
}
excelVo.setSheets(sheetInfoList);
ExcelService excelService=new ExcelService();
excelService.createTableViewerExcelFile(excelVo);
}
public static void readExcel(){
//以map方式遍历
ExcelService excelService0=new ExcelService();
String[] trianDeatailheadTitle=new String[]{"trainCode","startionName","startTime","arriveTime","km"};
Map<String,List<Map<String,Object>>> list0=excelService0.readEXCELMap("C:\\traincode.xlsx", trianDeatailheadTitle);
JSONArray jsonArray0=JSONArray.fromObject(list0);
System.out.println(jsonArray0.toString());
}
public static void main(String[] args) throws Exception {
writeExcel();
readExcel();
}
}