java日常工具类之Excel工具类
作者:互联网
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
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.DateUtil;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
/**
* Excel工具类
*
* @author lp
*/
public class ExcelUtil {
public static final String OFFICE_EXCEL_2003_POSTFIX = "xls";
public static final String OFFICE_EXCEL_2010_POSTFIX = "xlsx";
public static final String EMPTY = "";
public static final String POINT = ".";
public static SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
/**
* 获得path的后缀名
*
* @param path
* @return
*/
public static String getPostfix(String path) {
if (path == null || EMPTY.equals(path.trim())) {
return EMPTY;
}
if (path.contains(POINT)) {
return path.substring(path.lastIndexOf(POINT) + 1, path.length());
}
return EMPTY;
}
/**
* 单元格格式
*
* @param hssfCell
* @return
*/
@SuppressWarnings({"static-access", "deprecation"})
public static String getHValue(HSSFCell hssfCell) {
if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
return String.valueOf(hssfCell.getBooleanCellValue());
} else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
String cellValue = "";
if (HSSFDateUtil.isCellDateFormatted(hssfCell)) {
Date date = HSSFDateUtil.getJavaDate(hssfCell.getNumericCellValue());
cellValue = sdf.format(date);
} else {
DecimalFormat df = new DecimalFormat("#.##");
cellValue = df.format(hssfCell.getNumericCellValue());
String strArr = cellValue.substring(cellValue.lastIndexOf(POINT) + 1, cellValue.length());
if (strArr.equals("00")) {
cellValue = cellValue.substring(0, cellValue.lastIndexOf(POINT));
}
}
return cellValue;
} else {
return String.valueOf(hssfCell.getStringCellValue());
}
}
/**
* 单元格格式
*
* @param xssfCell
* @return
*/
public static String getXValue(XSSFCell xssfCell) {
if (xssfCell.getCellType() == Cell.CELL_TYPE_BOOLEAN) {
return String.valueOf(xssfCell.getBooleanCellValue());
} else if (xssfCell.getCellType() == Cell.CELL_TYPE_NUMERIC) {
String cellValue = "";
if (DateUtil.isCellDateFormatted(xssfCell)) {
Date date = DateUtil.getJavaDate(xssfCell.getNumericCellValue());
cellValue = sdf.format(date);
} else {
DecimalFormat df = new DecimalFormat("#.##");
cellValue = df.format(xssfCell.getNumericCellValue());
String strArr = cellValue.substring(cellValue.lastIndexOf(POINT) + 1, cellValue.length());
if (strArr.equals("00")) {
cellValue = cellValue.substring(0, cellValue.lastIndexOf(POINT));
}
}
return cellValue;
} else {
return String.valueOf(xssfCell.getStringCellValue());
}
}
public static int writeExcelOs(String[][] content,String savaPath) {
byte[] data = null;
ByteArrayOutputStream bos = new ByteArrayOutputStream();
OutputStream os=null;
SXSSFWorkbook workBook = null;
int rutle=0;
try {
workBook = new SXSSFWorkbook();
os=new FileOutputStream(savaPath);
org.apache.poi.ss.usermodel.Sheet sheet=workBook.createSheet();
workBook.setSheetName(0,"sheet1");
//
for (int i = 0; i < content.length; i++) {
Row row = sheet.createRow(i);
for (int j = 0; j < content[i].length; j++) {
row.createCell(j).setCellValue(content[i][j]);
}
}
workBook.write(os);
os.flush();
os.close();
rutle=1;
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
bos.close();
//os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return rutle;
}
}
标签:java,String,hssfCell,Excel,return,import,工具,cellValue 来源: https://blog.csdn.net/qq_42946963/article/details/119188453