package cn.milktea.util;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
//import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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.hssf.util.CellRangeAddress;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.util.CellRangeAddress;
/**
* 导出Excel公共方法
*
* @version 1.0
*
*/
public class ExportExcelUtil {
// 显示的导出表的标题
private String title;
// 导出表的列名
private String[] rowName;
private List<Object[]> dataList = new ArrayList<Object[]>();
// 构造方法,传入要导出的数据
public ExportExcelUtil(String title, String[] rowName, List<Object[]> dataList) {
this.dataList = dataList;
this.rowName = rowName;
this.title = title;
}
/*
* 导出数据
*/
public void export(HSSFWorkbook workbook, HSSFSheet sheet, int x) throws Exception {
try {
// 产生表格标题行
HSSFRow rowm = sheet.createRow(0);
HSSFCell cellTiltle = rowm.createCell(0);
rowm.setHeight((short) (25 * 35)); // 设置高度
// sheet样式定义【getColumnTopStyle()/getStyle()均为自定义方法 - 在下面 - 可扩展】
HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook);// 获取列头样式对象
HSSFCellStyle style = this.getStyle(workbook); // 单元格样式对象
sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, (rowName.length - 1)));
cellTiltle.setCellStyle(columnTopStyle);
cellTiltle.setCellValue(title);
// 定义所需列数
int columnNum = rowName.length;
HSSFRow rowRowName = sheet.createRow(1); // 在索引2的位置创建行(最顶端的行开始的第二行)
rowRowName.setHeight((short) (25 * 25)); // 设置高度
// 将列头设置到sheet的单元格中
for (int n = 0; n < columnNum; n++) {
HSSFCell cellRowName = rowRowName.createCell(n); // 创建列头对应个数的单元格
cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); // 设置列头单元格的数据类型
HSSFRichTextString text = new HSSFRichTextString(rowName[n]);
cellRowName.setCellValue(text); // 设置列头单元格的值
cellRowName.setCellStyle(columnTopStyle); // 设置列头单元格样式
}
// 将查询出的数据设置到sheet对应的单元格中
for (int i = 0; i < dataList.size(); i++) {
Object[] obj = dataList.get(i);// 遍历每个对象
HSSFRow row = sheet.createRow(i + 2);// 创建所需的行数
row.setHeight((short) (25 * 20)); // 设置高度
for (int j = 0; j < obj.length; j++) {
HSSFCell cell = null; // 设置单元格的数据类型
if (j == 0) {
cell = row.createCell(j, HSSFCell.CELL_TYPE_NUMERIC);// 数字类型
cell.setCellValue(i + 1);
} else {
cell = row.createCell(j, HSSFCell.CELL_TYPE_STRING);// 字符串类型
if (!"".equals(obj[j]) && obj[j] != null) {
cell.setCellValue(obj[j].toString()); // 设置单元格的值
}
}
cell.setCellStyle(style); // 设置单元格样式
}
}
// 让列宽随着导出的列长自动适应
for (int colNum = 0; colNum < columnNum; colNum++) {
int columnWidth = sheet.getColumnWidth(colNum) / 300;
for (int rowNum = 0; rowNum < sheet.getLastRowNum(); rowNum++) {
HSSFRow currentRow;
// 当前行未被使用过
if (sheet.getRow(rowNum) == null) {
currentRow = sheet.createRow(rowNum);
} else {
currentRow = sheet.getRow(rowNum);
}
if (currentRow.getCell(colNum) != null) {
HSSFCell currentCell = currentRow.getCell(colNum);
if (currentCell.getCellType() == HSSFCell.CELL_TYPE_STRING) {
int length = currentCell.getStringCellValue().getBytes().length;
if (columnWidth < length) {
columnWidth = length;
}
}
}
}
if (colNum == 0) {
sheet.setColumnWidth(colNum, (columnWidth - 2) * 128);
} else {
sheet.setColumnWidth(colNum, (columnWidth + 4) * 256);
}
}
if (workbook != null && x == 1) {
FileOutputStream out = null;
try {
// 通过web方式输出
// String fileName = "Excel-" +
// String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xls";
// String headStr = "attachment; filename=\"" + fileName + "\"";
// response = getResponse(); //得到响应
// response.setContentType("APPLICATION/OCTET-STREAM");//设置媒体类型
// response.setHeader("Content-Disposition", headStr);//设置响应头信息
// OutputStream out = response.getOutputStream();
// workbook.write(out);
// 本地输出
out = new FileOutputStream("D://桌面//" + this.title + "_"
+ new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()).toString() + ".xls");
workbook.write(out);
} catch (IOException e) {
e.printStackTrace();
} finally {
out.close();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/*
* 列头单元格样式
*/
public HSSFCellStyle getColumnTopStyle(HSSFWorkbook workbook) {
// 设置字体
HSSFFont font = workbook.createFont();
// 设置字体大小
font.setFontHeightInPoints((short) 20);
// 字体加粗
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// 设置字体名字
font.setFontName("楷体");// Courier New
// 设置样式;
HSSFCellStyle style = workbook.createCellStyle();
// 设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
// 设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
// 设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
// 设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
// 设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
// 设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
// 设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
// 设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
// 在样式用应用设置的字体;
style.setFont(font);
// 设置自动换行;
style.setWrapText(false);
// 设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
// 设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 设置单元格背景颜色
style.setFillForegroundColor(IndexedColors.WHITE.getIndex());
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
return style;
}
/*
* 列数据信息单元格样式
*/
public HSSFCellStyle getStyle(HSSFWorkbook workbook) {
// 设置字体
HSSFFont font = workbook.createFont();
// 设置字体大小
font.setFontHeightInPoints((short) 10);
// 字体加粗
// font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// 设置字体名字
// font.setFontName("Courier New");
font.setFontName("宋体");
// 设置样式;
HSSFCellStyle style = workbook.createCellStyle();
// 设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
// 设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
// 设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
// 设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
// 设置右边框;
style.setBorderRight(HSSFCellStyl
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