Java工具类-poi导微信牛牛平台开发入工具类-javaTutorial-php.cn

Java工具类-poi导微信牛牛平台开发入工具类

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Lepaskan： 2018-01-09 15:09:38

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1589 orang telah melayarinya

Java工具类(二)

poi导入工具类

maven依赖

org.apache.poi
poi-ooxml
3.9

导入工具类

package cc.vvxtoys.poi;import java.math.BigDecimal;import java.text.SimpleDateFormat;import org.apache.poi.hssf.usermodel.HSSFCell;import org.apache.poi.hssf.usermodel.HSSFDateUtil;import org.apache.poi.ss.usermodel.Cell;import org.apache.poi.ss.usermodel.Row;import org.apache.poi.xssf.usermodel.XSSFCell;public class ImportExcelUtils { public static final String EXCEL_2003 = ".xls"; public static final String EXCEL_2007 = ".xlsx";

@SuppressWarnings("static-access") public String getValue(XSSFCell cell) { if (cell.getCellType() == cell.CELL_TYPE_BOOLEAN) { return String.valueOf(cell.getBooleanCellValue()).trim();
} else if (cell.getCellType() == cell.CELL_TYPE_NUMERIC) { if (HSSFDateUtil.isCellDateFormatted(cell)) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); return String.valueOf(sdf.format(HSSFDateUtil.getJavaDate(cell.getNumericCellValue()))).trim();
}
BigDecimal bd = new BigDecimal(String.valueOf(cell.getNumericCellValue()).trim()); return bd.toPlainString();
} else { return String.valueOf(cell.getStringCellValue()).trim();
}
}

@SuppressWarnings("static-access") public String getValue(HSSFCell cell) { if (cell.getCellType() == cell.CELL_TYPE_BOOLEAN) { return String.valueOf(cell.getBooleanCellValue()).trim();
} else if (cell.getCellType() == cell.CELL_TYPE_NUMERIC) { if (HSSFDateUtil.isCellDateFormatted(cell)) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); return String.valueOf(sdf.format(HSSFDateUtil.getJavaDate(cell.getNumericCellValue()))).trim();
}
BigDecimal bd = new BigDecimal(String.valueOf(cell.getNumericCellValue()).trim()); return bd.toPlainString();
} else { return String.valueOf(cell.getStringCellValue()).trim();
}
} //判断空行
public boolean isBlank(Row row){ for(int i=0;i Cell cell = row.getCell(i); if(cell!=null&&cell.getCellType()!=cell.CELL_TYPE_BLANK){ return false;
}
} return true;
} //非空判断
public boolean isEmpty(Object obj){ if (obj instanceof HSSFCell) {
HSSFCell cell = (HSSFCell) obj; return getValue(cell) == null || "".equals(getValue(cell));
} if (obj instanceof XSSFCell) {
XSSFCell cell = (XSSFCell) obj; return getValue(cell) == null || "".equals(getValue(cell));
} return obj == null || obj.toString().trim().equals("");
}

}

service(部分)

package cc.vvxtoys.poi;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;import java.util.Map;import org.apache.poi.hssf.usermodel.HSSFWorkbook;import org.apache.poi.xssf.usermodel.XSSFWorkbook;public class ExcelService { private static ImportExcelUtils utils = new ImportExcelUtils();
public static Object getExcelParser(String path, String sheet,
String start, String end) throws Exception{
InputStream is = null; if(utils.isEmpty(path)){ return new FileNotFoundException("file not found");
}else{
is = new FileInputStream(path);
} if(path.endsWith(ImportExcelUtils.EXCEL_2003)){
HSSFWorkbook workbook = new HSSFWorkbook(is);
return importXls(start, end, workbook, sheet);
}else if(path.endsWith(ImportExcelUtils.EXCEL_2007)){
XSSFWorkbook workbook = new XSSFWorkbook(is); return importXlsx(start, end, workbook, sheet);
}else{
is.close(); return new Exception("type error");
}

}
public static Map importXls(String start,String end,HSSFWorkbook workbook, String sheet){
return null;
} public static Map importXlsx(String start,String end,XSSFWorkbook workbook, String sheet){
return null;
}

}