package cn.com.css.common.util;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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 ExcelReader {
private POIFSFileSystem fs;
private HSSFWorkbook wb;
private HSSFSheet sheet;
private HSSFRow row;
/**
* 读取Excel表格表头的内容
*
* @param InputStream
* @return String 表头内容的数组
*/
public String[] readExcelTitle(InputStream is) {
try {
fs = new POIFSFileSystem(is);
wb = new HSSFWorkbook(fs);
} catch (IOException e) {
e.printStackTrace();
}
sheet = wb.getSheetAt(0);
row = sheet.getRow(0);
// 标题总列数
int colNum = row.getPhysicalNumberOfCells();
String[] title = new String[colNum];
for (int i = 0; i < colNum; i++) {
title[i] = getCellFormatValue(row.getCell((short) i));
}
return title;
}
/**
* 读取Excel数据内容
*
* @param InputStream
* @return Map 包含单元格数据内容的Map对象
*/
public Map<Integer, String> readExcelContent(InputStream is) {
Map<Integer, String> content = new HashMap<Integer, String>();
String str = "";
try {
fs = new POIFSFileSystem(is);
wb = new HSSFWorkbook(fs);
} catch (IOException e) {
e.printStackTrace();
}
sheet = wb.getSheetAt(0);
// 得到总行数
int rowNum = sheet.getLastRowNum();
row = sheet.getRow(0);
int colNum1 = row.getPhysicalNumberOfCells(); // 获取有数据的列的个数
int colNum = 15;
// 正文内容应该从第二行开始,第一行为表头的标题
for (int i = 1; i <= rowNum; i++) {
row = sheet.getRow(i);
int j = 0;
while (j < colNum) {
String cell = getCellFormatValue(row.getCell((short) j)).trim();
if (cell == "") {
j++;
continue;
}
str += cell + " ";
j++;
}
str.trim();
// System.out.println(str);
content.put(i, str);
str = "";
}
return content;
}
/**
* 获取单元格数据内容为字符串类型的数据
*
* @param cell
* Excel单元格
* @return String 单元格数据内容
*/
/*
* private String getStringCellValue(HSSFCell cell) { String strCell = "";
* switch (cell.getCellType()) { case HSSFCell.CELL_TYPE_STRING: strCell =
* cell.getStringCellValue(); break; case HSSFCell.CELL_TYPE_NUMERIC:
* strCell = 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; }
*/
/**
* 获取单元格数据内容为日期类型的数据
*
* @param cell
* Excel单元格
* @return String 单元格数据内容
*/
// private String getDateCellValue(HSSFCell cell) {
// String result = "";
// try {
// int cellType = cell.getCellType();
// if (cellType == HSSFCell.CELL_TYPE_NUMERIC) {
// Date date = cell.getDateCellValue();
// result = (date.getYear() + 1900) + "-" + (date.getMonth() + 1)
// + "-" + date.getDate();
// } else if (cellType == HSSFCell.CELL_TYPE_STRING) {
// String date = getStringCellValue(cell);
// result = date.replaceAll("[年月]", "-").replace("日", "").trim();
// } else if (cellType == HSSFCell.CELL_TYPE_BLANK) {
// result = "";
// }
// } catch (Exception e) {
// //System.out.println("日期格式不正确!");
// e.printStackTrace();
// }
// return result;
// }
/**
* 根据HSSFCell类型设置数据
*
* @param cell
* @return
*/
private String getCellFormatValue(HSSFCell cell) {
String cellvalue = "";
if (cell != null) {
// 判断当前Cell的Type
switch (cell.getCellType()) {
// 如果当前Cell的Type为NUMERIC
case HSSFCell.CELL_TYPE_NUMERIC: {
cellvalue = String.valueOf(cell.getNumericCellValue());
break;
}
case HSSFCell.CELL_TYPE_FORMULA: {
// 判断当前的cell是否为Date
if (HSSFDateUtil.isCellDateFormatted(cell)) {
// 如果是Date类型则，转化为Data格式
// 方法1：这样子的data格式是带时分秒的：2011-10-12 0:00:00
// cellvalue = cell.getDateCellValue().toLocaleString();
// 方法2：这样子的data格式是不带带时分秒的：2011-10-12
Date date = cell.getDateCellValue();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
cellvalue = sdf.format(date);
}
// 如果是纯数字
else {
// 取得当前Cell的数值
cellvalue = String.valueOf(cell.getNumericCellValue());
}
break;
}
// 如果当前Cell的Type为STRIN
case HSSFCell.CELL_TYPE_STRING:
// 取得当前的Cell字符串
cellvalue = cell.getRichStringCellValue().getString();
break;
// 默认的Cell值
default:
cellvalue = " ";
}
} else {
cellvalue = "";
}
return cellvalue;
}
}
