ReadExcelUtils.java
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package com.rivercloud.utils;
import java.io.*;
import java.util.HashMap;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class ReadExcelUtils {
private Workbook wb;
private Sheet sheet;
private Row row;
public ReadExcelUtils(File file) {
String ext = file.getName().substring(file.getName().lastIndexOf("."));
try {
FileInputStream is = new FileInputStream(file);
if(".xls".equals(ext)){
wb = new HSSFWorkbook(is);
}else if(".xlsx".equals(ext)){
wb = new XSSFWorkbook(is);
}else{
wb=null;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 读取Excel数据内容
*
*/
public Map<Integer, Object[]> readExcelContent() throws Exception{
if(wb==null){
throw new Exception("Workbook对象为空！");
}
Map<Integer, Object[]> content = new HashMap<Integer, Object[]>();
sheet = wb.getSheetAt(0);
// 得到总行数
int rowNum = sheet.getLastRowNum();
row = sheet.getRow(0);
int colNum = row.getPhysicalNumberOfCells();
//得到标题
Object[] title = new Object[colNum];
//Map title = new HashMap();
for (int i = 0; i <= colNum-1; i++) {
Object obj = getCellFormatValue(row.getCell(i));
title[i] = obj;
}
//得到正文内容
for (int i = 1; i <= rowNum; i++) {
row = sheet.getRow(i);
Object[] cellValue = new Object[colNum];
Map cellvalue = new HashMap();
for (int j = 0;j <= colNum-1;j++){
Object obj = getCellFormatValue(row.getCell(j));
cellValue[j] = obj;
}
content.put(0,title);
content.put(i, cellValue);
}
return content;
}
/**
*
* 根据Cell类型设置数据
*
*/
private Object getCellFormatValue(Cell cell) {
Object result = "";
/*if (cell != null) {
switch (cell.getCellType()) {
case Cell.CELL_TYPE_STRING:
result = cell.getStringCellValue();
break;
case Cell.CELL_TYPE_NUMERIC:
cell.setCellType(1);
result = cell.getNumericCellValue();
break;
case Cell.CELL_TYPE_BOOLEAN:
result = cell.getBooleanCellValue();
break;
case Cell.CELL_TYPE_FORMULA:
result = cell.getCellFormula();
break;
case Cell.CELL_TYPE_ERROR:
result = cell.getErrorCellValue();
break;
case Cell.CELL_TYPE_BLANK:
break;
default:
break;
}
}*/
if (cell !=null&&cell.getCellType() == Cell.CELL_TYPE_STRING){//字符串类型
result = cell.getStringCellValue();
}
if (cell !=null&&cell.getCellType() == Cell.CELL_TYPE_NUMERIC){//数值类型
if (DateUtil.isCellDateFormatted(cell)) {
result = cell.getDateCellValue();
}else {
Long longVal = Math.round(cell.getNumericCellValue());
Double doubleVal = cell.getNumericCellValue();
if(Double.parseDouble(longVal + ".0") == doubleVal){ //判断是否含有小数位.0
result = longVal;
}
else{
result = doubleVal;
}
}
}
if (cell !=null&&cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){//布尔类型
result = cell.getBooleanCellValue();
}
if (cell !=null&&cell.getCellType() == Cell.CELL_TYPE_FORMULA){//表达式类型
result = cell.getCellFormula();
}
if (cell !=null&&cell.getCellType() == Cell.CELL_TYPE_ERROR){//错误类型
result = cell.getErrorCellValue();
}
if (cell !=null&&cell.getCellType() == Cell.CELL_TYPE_BLANK){//空
}
return result.toString();
}
}