package cn.com.lzt.excel;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.ss.usermodel.Cell;
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.xssf.usermodel.XSSFWorkbook;

import cn.com.lzt.excel.entity.HGLExcelResult;

public class HGLExcelImportUtils {
	
	/**
     * 读取出filePath中的所有数据信息
     * @param filePath excel文件的绝对路径
     * 
     */
    
    public static HGLExcelResult getDataFromExcel(InputStream fis,int titlerows,int headrows)
    {
    	HGLExcelResult result = new HGLExcelResult();
        Workbook wookbook = null;
        try 
        {
            wookbook = new XSSFWorkbook(fis);//得到工作簿
             
        } 
        catch (Exception ex) 
        {
                // TODO Auto-generated catch block
             ex.printStackTrace();
        }
        //得到一个工作表
        Sheet sheet = wookbook.getSheetAt(0);
        //获得表头
        Row rowHead = sheet.getRow(titlerows + headrows - 1 );
        for(int i = 0; i < rowHead.getLastCellNum();i++) {
        	if(null != rowHead.getCell(i))
        		result.getHeaderList().add(rowHead.getCell(i).getStringCellValue());
        }
        //获得数据的总行数
        int totalRowNum = sheet.getLastRowNum();
        boolean bEnd = false;
       //获得所有数据
        for(int i = titlerows+headrows ; i <= totalRowNum ; i++)
        {
            //获得第i行对象
            Row row = sheet.getRow(i);
            List<String> record = new ArrayList<String>();
            for(int j = 0; j < result.getHeaderList().size();j++) {
            	if(row.getCell(j) == null) {
            		bEnd = true;
            		break;
            	}
            	record.add(row.getCell(j).getStringCellValue());
            }
            if(bEnd)
            	break;
            result.dataList.add(record);
        }
        return result;
    }
    
    public static String getCheckMsg(InputStream fis,int sheetNum,int checkRow,int checkCol )
    {
    	String result = "";
        Workbook wookbook = null;
        try 
        {
	        wookbook = new XSSFWorkbook(fis);//得到工作簿
        } 
        catch (Exception ex) 
        {
                // TODO Auto-generated catch block
             ex.printStackTrace();
        }
        try {
	        //得到一个工作表
	        Sheet sheet = wookbook.getSheetAt(sheetNum);
	        //获得表头
	        Cell checkCell = sheet.getRow(checkRow).getCell(checkCol);
	        result = checkCell.getStringCellValue();
        }catch(Exception e) {
        	result = "false";
        }
        return result;
    }

}