实体类excel
import java.util.List; /** * 功能: * 描述: * @author * @date 2015-3-19 下午5:15:48 */ public class Excel { private String fileName;//sheet的名称 private String[] handers;//sheet里的标题 private List<String[]> dataset;//sheet里的数据集 /** * */ public Excel(String fileName,String[] handers,List<String[]> dataset) { this.fileName = fileName; this.handers = handers; this.dataset = dataset; } public String getFileName() { return fileName; } public void setFileName(String fileName) { this.fileName = fileName; } public String[] getHanders() { return handers; } public void setHanders(String[] handers) { this.handers = handers; } public List<String[]> getDataset() { return dataset; } public void setDataset(List<String[]> dataset) { this.dataset = dataset; } }
具体实现
import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.ArrayList; import java.util.List; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; /** * 功能:将多个sheet导出到同一个出excel表格中 * 描述: * @author * @date 2015-3-19 下午5:20:20 */ public class test { public static void main(String[] args) { String data1[] = {"111","2222","3333","44444"}; String data2[] = {"111","2222","3333","44444","5555"}; String handers1[] = {"一","二","三","四","五"}; String handers2[] = {"one","two","three","four","five"}; String handers3[] = {"车辆","毛衣","手机","茶杯","笔记本"}; List<String[]> dataset = new ArrayList<String[]>(); dataset.add(data1); dataset.add(data2); Excel e1 = new Excel("第一个sheet", handers1, dataset); Excel e2 = new Excel("第二个sheet", handers2, dataset); Excel e3 = new Excel("第三个sheet", handers3, dataset); List<Excel> mysheet = new ArrayList<Excel>(); mysheet.add(e1); mysheet.add(e2); mysheet.add(e3); test2(mysheet); } private static void test(){ List<Object> list = new ArrayList<Object>(); String[] handers = {"1","2","3","4","5"}; HSSFWorkbook wb = new HSSFWorkbook();//创建工作薄 HSSFSheet sheet = wb.createSheet("第一个sheet");//第一个sheet HSSFRow rowFirst = sheet.createRow(0);//第一个sheet的第一行为标题 //写标题 for(int i=0;i<handers.length;i++){ //获取第一行的每个单元格 HSSFCell cell = rowFirst.createCell(i); //往单元格里写数据 cell.setCellValue(handers[i]); } //写数据集 //假定数据集诗歌list集合 for(int i=0;i<list.size();i++){ //获取list里面存在是数据集对象 Object obj = list.get(i); //创建数据行 HSSFRow row = sheet.createRow(i+1); //设置对应单元格的值 row.createCell(0).setCellValue("obj 的属性0"); row.createCell(1).setCellValue("obj 的属性1"); row.createCell(2).setCellValue("obj 的属性2"); row.createCell(3).setCellValue("obj 的属性3"); row.createCell(4).setCellValue("obj 的属性4"); } //写文件 try { OutputStream os = new FileOutputStream(new File("filepath")); wb.write(os); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * 具体sheet的操作 * @author * @date 2015-3-19下午6:12:57 * @param mysheets void */ private static void test2(List<Excel> mysheets){ HSSFWorkbook wb = new HSSFWorkbook();//创建工作薄 List<Excel> sheets = mysheets; for(Excel excel:sheets){ //新建一个sheet HSSFSheet sheet = wb.createSheet(excel.getFileName());//获取该sheet名称 String[] handers = excel.getHanders();//获取sheet的标题名 HSSFRow rowFirst = sheet.createRow(0);//第一个sheet的第一行为标题 //写标题 for(int i=0;i<handers.length;i++){ //获取第一行的每个单元格 HSSFCell cell = rowFirst.createCell(i); //往单元格里写数据 cell.setCellValue(handers[i]); } //写数据集 List<String[]> dataset = excel.getDataset(); for(int i=0;i<dataset.size();i++){ String[] data = dataset.get(i);//获取该对象 //创建数据行 HSSFRow row = sheet.createRow(i+1); for(int j=0;j<data.length;j++){ //设置对应单元格的值 row.createCell(j).setCellValue(data[i]); } } } // 写文件 try { OutputStream os = new FileOutputStream(new File("D://test.xls")); wb.write(os); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }
时间: 2024-11-06 10:01:45