HSSFWorkbook和XSSFWorkbook的区别

HSSFWorkbook读取97-2003格式 ,XSSFWorkbook读取2007-2013格式 

  1.   
  2.     /** 
  3.      * 读取97-2003格式 
  4.      * @param filePath 文件路径 
  5.      * @throws java.io.IOException 
  6.      */  
  7.     public static List readExcel2003(String filePath) throws IOException{  
  8.         //返回结果集  
  9.         List valueList=new ArrayList();  
  10.         FileInputStream fis=null;  
  11.         try {  
  12.             fis=new FileInputStream(filePath);  
  13.             HSSFWorkbook wookbook = new HSSFWorkbook(fis);  // 创建对Excel工作簿文件的引用  
  14.             HSSFSheet sheet = wookbook.getSheetAt(0);   // 在Excel文档中,第一张工作表的缺省索引是0  
  15.             int rows = sheet.getPhysicalNumberOfRows(); // 获取到Excel文件中的所有行数­  
  16.             Map keys=new HashMap();  
  17.             int cells=0;  
  18.             // 遍历行­(第1行  表头) 准备Map里的key  
  19.             HSSFRow firstRow = sheet.getRow(0);  
  20.             if (firstRow != null) {  
  21.                 // 获取到Excel文件中的所有的列  
  22.                 cells = firstRow.getPhysicalNumberOfCells();  
  23.                 // 遍历列  
  24.                 for (int j = 0; j < cells; j++) {  
  25.                     // 获取到列的值­  
  26.                     try {  
  27.                         HSSFCell cell = firstRow.getCell(j);  
  28.                         String cellValue = getCellValue(cell);  
  29.                         keys.put(j,cellValue);                        
  30.                     } catch (Exception e) {  
  31.                         e.printStackTrace();      
  32.                     }  
  33.                 }  
  34.             }  
  35.             // 遍历行­(从第二行开始)  
  36.             for (int i = 1; i < rows; i++) {  
  37.                 // 读取左上端单元格(从第二行开始)  
  38.                 HSSFRow row = sheet.getRow(i);  
  39.                 // 行不为空  
  40.                 if (row != null) {  
  41.                     //准备当前行 所储存值的map  
  42.                     Map val=new HashMap();  
  43.                       
  44.                     boolean isValidRow = false;  
  45.                       
  46.                     // 遍历列  
  47.                     for (int j = 0; j < cells; j++) {  
  48.                         // 获取到列的值­  
  49.                         try {  
  50.                             HSSFCell cell = row.getCell(j);  
  51.                             String cellValue = getCellValue(cell);  
  52.                             val.put(keys.get(j),cellValue);   
  53.                             if(!isValidRow && cellValue!=null && cellValue.trim().length()>0){  
  54.                                 isValidRow = true;  
  55.                             }  
  56.                         } catch (Exception e) {  
  57.                             e.printStackTrace();          
  58.                         }  
  59.                     }  
  60.                     //第I行所有的列数据读取完毕,放入valuelist  
  61.                     if(isValidRow){  
  62.                         valueList.add(val);  
  63.                     }  
  64.                 }  
  65.             }  
  66.         } catch (IOException e) {  
  67.             e.printStackTrace();  
  68.         }finally {  
  69.             fis.close();  
  70.         }  
  71.         return valueList;  
  72.     } 

 

  1. /** 
  2.      * 读取2007-2013格式 
  3.      * @param filePath 文件路径 
  4.      * @return 
  5.      * @throws java.io.IOException 
  6.      */  
  7.     public static List readExcel2007(String filePath) throws IOException{  
  8.         List valueList=new ArrayList();  
  9.         FileInputStream fis =null;  
  10.         try {  
  11.             fis =new FileInputStream(filePath);  
  12.             XSSFWorkbook xwb = new XSSFWorkbook(fis);   // 构造 XSSFWorkbook 对象,strPath 传入文件路径  
  13.             XSSFSheet sheet = xwb.getSheetAt(0);            // 读取第一章表格内容  
  14.             // 定义 row、cell  
  15.             XSSFRow row;  
  16.             // 循环输出表格中的第一行内容   表头  
  17.             Map keys=new HashMap();  
  18.             row = sheet.getRow(0);  
  19.             if(row !=null){  
  20.                 //System.out.println("j = row.getFirstCellNum()::"+row.getFirstCellNum());  
  21.                 //System.out.println("row.getPhysicalNumberOfCells()::"+row.getPhysicalNumberOfCells());  
  22.                 for (int j = row.getFirstCellNum(); j <=row.getPhysicalNumberOfCells(); j++) {  
  23.                     // 通过 row.getCell(j).toString() 获取单元格内容,  
  24.                     if(row.getCell(j)!=null){  
  25.                         if(!row.getCell(j).toString().isEmpty()){  
  26.                             keys.put(j, row.getCell(j).toString());  
  27.                         }  
  28.                     }else{  
  29.                         keys.put(j, "K-R1C"+j+"E");  
  30.                     }  
  31.                 }  
  32.             }  
  33.             // 循环输出表格中的从第二行开始内容  
  34.             for (int i = sheet.getFirstRowNum() + 1; i <= sheet.getPhysicalNumberOfRows(); i++) {  
  35.                 row = sheet.getRow(i);  
  36.                 if (row != null) {  
  37.                     boolean isValidRow = false;  
  38.                     Map val = new HashMap();  
  39.                     for (int j = row.getFirstCellNum(); j <= row.getPhysicalNumberOfCells(); j++) {  
  40.                         XSSFCell cell = row.getCell(j);  
  41.                         if (cell != null) {  
  42.                             String cellValue = null;  
  43.                             if(cell.getCellType()==XSSFCell.CELL_TYPE_NUMERIC){  
  44.                                 if(DateUtil.isCellDateFormatted(cell)){  
  45.                                     cellValue = new DataFormatter().formatRawCellContents(cell.getNumericCellValue(), 0, "yyyy-MM-dd HH:mm:ss");  
  46.                                 }  
  47.                                 else{  
  48.                                     cellValue = String.valueOf(cell.getNumericCellValue());  
  49.                                 }  
  50.                             }  
  51.                             else{  
  52.                                 cellValue = cell.toString();  
  53.                             }  
  54.                             if(cellValue!=null&&cellValue.trim().length()<=0){  
  55.                                 cellValue=null;  
  56.                             }  
  57.                             val.put(keys.get(j), cellValue);  
  58.                             if(!isValidRow && cellValue!= null && cellValue.trim().length()>0){  
  59.                                 isValidRow = true;  
  60.                             }  
  61.                         }  
  62.                     }  
  63.   
  64.                     // 第I行所有的列数据读取完毕,放入valuelist  
  65.                     if (isValidRow) {  
  66.                         valueList.add(val);  
  67.                     }  
  68.                 }  
  69.             }  
  70.         } catch (IOException e) {  
  71.             e.printStackTrace();  
  72.         }finally {  
  73.             fis.close();  
  74.         }  
  75.   
  76.         return valueList;  
  77.     }  
  78.       
  79.     /** 
  80.      * 文件操作 获取文件扩展名 
  81.      *  
  82.      * @Author: sunny 
  83.      * @param filename 
  84.      *            文件名称包含扩展名 
  85.      * @return 
  86.      */  
  87.     public static String getExtensionName(String filename) {  
  88.         if ((filename != null) && (filename.length() > 0)) {  
  89.             int dot = filename.lastIndexOf('.');  
  90.             if ((dot > -1) && (dot < (filename.length() - 1))) {  
  91.                 return filename.substring(dot + 1);  
  92.             }  
  93.         }  
  94.         return filename;  
  95.     }  

转载于:https://www.cnblogs.com/silentmuh/p/5319964.html

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