- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.util.List;
- import java.util.Map;
- import org.apache.poi.hssf.usermodel.HSSFCell;
- 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;
- public class ExportExcel {
- private ExportExcel() {
- super();
- }
- public static void exportExcel(List<Object> list, Map<Integer, Long> map,
- String[] titles) throws IOException {
- // 创建Excel文档
- HSSFWorkbook hwb = new HSSFWorkbook();
- // sheet 对应一个工作页
- HSSFSheet sheet = hwb.createSheet("exportReport");
- int colNum = titles.length;
- // 创建第一行
- HSSFRow firstrow = sheet.createRow(0);
- HSSFCell[] firstcell = new HSSFCell[colNum];
- for (int col = 0; col < colNum; col++) {
- firstcell[col] = firstrow.createCell(col);
- firstcell[col].setCellValue(new HSSFRichTextString(titles[col]));
- }
- // 插入记录
- int rowNum = map.size();
- for (int i = 0; i < rowNum; i++) {
- // 从第二行开始
- HSSFRow row = sheet.createRow(i + 1);
- // 插入list中的字段
- for (int col = 0; col < colNum - 2; col++) {
- HSSFCell cell = row.createCell(col);
- cell.setCellValue(list.get(col).toString());
- }
- // 插入月份或日期
- row.createCell(colNum - 2).setCellValue(i + 1);
- // 插入总量
- row.createCell(colNum - 1).setCellValue(map.get(i + 1));
- }
- String fileName = titles[1].substring(0, 2);
- if (colNum == 4) {
- fileName += list.get(0) + "_" + list.get(1) + "年_年度报表";
- } else if (colNum == 5) {
- fileName += list.get(0) + "_" + list.get(1) + "年" + list.get(2)
- + "月_月度报表";
- }
- // 创建文件输出流,准备输出电子表格
- OutputStream out = new FileOutputStream("../webapps/UsedMallMinaServer/files/"
- + fileName + ".xls");
- hwb.write(out);
- out.close();
- }
- }
复制代码
|
|