import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import org.apache.poi.hssf.usermodel.HSSFCell; 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.poifs.filesystem.POIFSFileSystem; public class ReadExcel { private POIFSFileSystem pois ; private HSSFWorkbook workBook; private HSSFSheet sheet; private HSSFRow row; private HSSFCell cell; List<String> RegionList = new ArrayList<String>(); Map<String, String> unitMap = new HashMap<String, String>(); //存放集合 <region,unit>1:1 Map<String, List<String>> deptMap = new HashMap<String, List<String>>(); //存放集合 <unit,dept>1:n /** * sheetName * @param os * @param sheetCount * @return * @throws Exception */ public List readExcelSheetName(InputStream os,int sheetCount) throws Exception{ pois = new POIFSFileSystem(os); workBook = new HSSFWorkbook(pois); for(int i=0;i<sheetCount;i++){ sheet = workBook.getSheetAt(i); String sheetName = sheet.getSheetName(); // System.out.println("sheetName:"+sheetName); RegionList.add(sheetName); List plist = readCell(sheet,sheetName); File f = new File("F://person.txt"); OutputStream osa = new FileOutputStream(f); System.out.println(plist.size() + " 总数"); for(int j = 0 ;j<plist.size();j++){ Person per = (Person) plist.get(j); StringBuffer sb = new StringBuffer(); sb.append("region:"+per.getCity()+" "+"unit:"+per.getUnit()+" "+"dept:"+per.getDept()+" "+"name:"+per.getName()); sb.append(" "+"tel:"+per.getTel()+" "+"phone:"+per.getPhone()); sb.append("\r\n"); osa.write(sb.toString().getBytes()); } osa.close(); } return RegionList; } /** * 一个sheet上的相关信心 * @param sheet * @return */ public List readCell(HSSFSheet sheet,String sheetName){ List Personlist = new ArrayList(); String dept = ""; String unit = ""; int rowcount = 0; for (Iterator iterator = sheet.iterator(); iterator.hasNext();) { Person person = new Person(); HSSFRow rows = (HSSFRow) iterator.next(); //获得每个sheet的行数 if(rowcount == 0 ){ //有特殊的特殊处理，第一行标题 cell = rows.getCell(1); String title = cell.getStringCellValue(); // System.out.println("一标题："+title.trim()); }else if(rowcount ==1 ){ //第二行，单位名称 cell = rows.getCell(0); String unitCell = cell.getStringCellValue(); unit = unitCell.replace("单位名称：", ""); unitMap.put(sheetName, unit);// }else{ for(int i = 0;i<rows.getPhysicalNumberOfCells();i++){ //获得每行的cell个数 cell = rows.getCell(i); if(rowcount == 2){ //第三行标题栏 // switch (i){ // case 1 : // String b1 = cell.getStringCellValue(); // System.out.println("三标题："+b1); // break; // case 2 : // String b2 = cell.getStringCellValue(); // System.out.println("三标题："+b2); // break; // case 3: // String b3 = cell.getStringCellValue(); // System.out.println("三标题："+b3); // break; // case 4: // String b4 = cell.getStringCellValue(); // System.out.println("三标题："+b4); // break; // } }else{ if(cell != null){ if(i == 0 && formateCell(cell) != null&& !"".equals(formateCell(cell).trim())){ //第一个单元格有合并的部分 System.out.println(cell.getCellType()+"+++++"+cell.getStringCellValue().trim()); dept = cell.getStringCellValue(); dept = dept.replaceAll("\n", "").replace(" ",""); List deplist = deptMap.get("unit"); if(deplist == null ){ deplist = new ArrayList<String>(); deplist.add(dept); } deptMap.put(unit, deplist); }else{ switch (i){ case 1 : String b1 = cell.getStringCellValue(); person.setName(b1); break; case 2 : String b2 = cell.getStringCellValue(); person.setPosition(b2); break; case 3: //System.out.println("-------"+cell.getCellType()); double b3 =cell.getNumericCellValue(); //默认的cell类型：0:double,1:string person.setTel(formatDouble(b3+"")); break; case 4: double b4 = cell.getNumericCellValue(); person.setPhone(formatDouble(b4+"")); break; } } } } } person.setCity(sheetName); person.setDept(dept); person.setUnit(unit); if(rowcount !=2 ){ Personlist.add(person); } } rowcount ++; } return Personlist; } /** * 格式化cell里面的内容 * @param cell * @return */ private String formateCell(HSSFCell cell){ String strCell = ""; switch (cell.getCellType()){ case HSSFCell.CELL_TYPE_STRING: strCell = cell.getStringCellValue(); break; case HSSFCell.CELL_TYPE_NUMERIC: strCell = formatDouble(String.valueOf(cell.getNumericCellValue())); break; case HSSFCell.CELL_TYPE_BOOLEAN: strCell = String.valueOf(cell.getBooleanCellValue()); break; case HSSFCell.CELL_TYPE_BLANK: strCell = ""; break; default: strCell = ""; break; } if (strCell.equals("") || strCell == null) { return ""; } if (cell == null) { return ""; } return strCell; } private String formatDouble(String str) { if (str == null || "".equals(str.trim())) return ""; if (str.indexOf(".") > 0) { if (str.indexOf("E") > 0) { str = str.substring(0, str.indexOf("E")).replace(".", ""); } else { str = str.substring(0, str.indexOf(".")); } } return str; } }
所需jar
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