java读取excel中单元格数据导入数据库藏在问号

String [][]str=new String[iRowCount][iColCount];          for (int i=1;i<iRowCount;i++) {     HSSFRow row=sheet.getRow(i);     if(sheet.getRow(i)!=null){                 for(int j=0;j<iColCount;j++)   {                       HSSFCell cell   =row.getCell(j);                       if (cell!=null){                       switch(cell.getCellType())    //判断类型                                           {                                             case HSSFCell.CELL_TYPE_NUMERIC:  //数字                                                                                 cell_value=((Double)cell.getNumericCellValue()).toString().trim();                                           //cell_value=cell_value.substring(0,cell_value.length());                                           System.out.println("xxxxxxxx长度"+cell_value.length());                                            System.out.println("xxxxxxxx长度"+cell_value);                                           break;                                             case HSSFCell.CELL_TYPE_STRING: //字符串                                           cell_value=cell.getStringCellValue().toString().trim();                                             //cell_value = new String(cell_value.getBytes(), "utf-8");                                            //cell_value=encodeURI(cell_value);                                           break;                                             case HSSFCell.CELL_TYPE_FORMULA:  //公式                                           cell_value= cell.getCellFormula().toString().trim();                                                                                       break;                                              case HSSFCell.CELL_TYPE_BLANK: // 空值                                            cell_value= " <font   color=red> null </font> ";                                           break;                                             case HSSFCell.CELL_TYPE_ERROR: // 故障                                                break;                                             default:   //未知类型                                           cell_value= " <font   color=red> null </font> ";                                           break;                                                                    }     //end   switch]);                        out.print(cell_value+ "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");                        //str[i][j]=cell_value=cell_value.substring(0,cell_value.length()-1);                        str[i][j]=cell_value.replace((char)12288,' ').replace(" ","");                        //str[i][j]=cell_value.replace(" ","").trim();                                                                        System.out.println("第"+i+"行,第"+j+"列 ："+ str[i][j]);                        }   //end   if                   }   //end       for   (short   j   =   0;   j   <   iColCount;   j++)   {       //  out.print( " <br> ");         }     //end     if(sheet.getRow(i)==null){       else        {        iRowCount++;          System.out.println("fileToBeRead " + iRowCount);       }