POI3.8解析相关的jar文件如下: ??? <classpathentry kind="lib" path="libs/commons-logging-1.1.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 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; //剩余的实际分钟数 int minutes = seconds-hours*60; String str=""; String mistr=""; String hourstr=""; if(String.valueOf(minutes).length()==1){ mistr="0"+minutes; } if(String.valueOf(hours).length()==1){ hourstr="0"+hours; } str=hourstr+":"+mistr; return str; } /** * 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(); } }? |