主要使用poi jar来操作excel文件。代码中用到的数据库表信息见ORACLE之表。使用public ArrayList<Person> getPersonAllRecords()获得所有的记录。
1 public class PersonXLS { 2 3 public static void main(String[] args) throws IOException { 4 5 Workbook newExcel=new HSSFWorkbook();//创建一个excel 6 DBUtil dbUtil=new DBUtil();//数据库工具类 7 Sheet newSheet0=newExcel.createSheet("Person Info");//创建一个sheet 8 String[] title={"MAP_ID","PERSON_CODE","PERSON_NAME","SEX","INSERT_TIME","UPDATE_TIME","POSITION","SALARY","DEPT"};//表头 9 SimpleDateFormat sdf; 10 Row newRow0=newSheet0.createRow(0);//创建表头 11 int i=0; 12 for(String s:title){//写入表头 13 Cell cell=newRow0.createCell(i++); 14 cell.setCellValue(s); 15 } 16 long sql_begin = System.currentTimeMillis(); 17 dbUtil.getConn();//数据库连接 18 ArrayList<Person> persons=dbUtil.getPersonAllRecords();//获取记录 19 sdf=new SimpleDateFormat("MM/dd/yyyy"); 20 for(i=0;i<persons.size();i++){//写入记录 21 Row newRow=newSheet0.createRow(i+1); 22 newRow.createCell(0).setCellValue(persons.get(i).getMap_id()); 23 newRow.createCell(1).setCellValue(persons.get(i).getPerson_code()); 24 newRow.createCell(2).setCellValue(persons.get(i).getPerson_name()); 25 newRow.createCell(3).setCellValue(persons.get(i).getSex()); 26 newRow.createCell(4).setCellValue(sdf.format(persons.get(i).getInsert_time())); 27 newRow.createCell(5).setCellValue(sdf.format(persons.get(i).getUpdate_time())); 28 newRow.createCell(6).setCellValue(persons.get(i).getPosition()); 29 newRow.createCell(7).setCellValue(persons.get(i).getSalary()); 30 newRow.createCell(8).setCellValue(persons.get(i).getDept()); 31 } 32 sdf=new SimpleDateFormat("yyyyMMddHHmmss"); 33 FileOutputStream fos=new FileOutputStream("PersonInfo"+sdf.format(new Date())+System.currentTimeMillis()+".xls");//创建 34 newExcel.write(fos);//向输入流写入数据 35 System.out.println("sql cost :"+(System.currentTimeMillis()-sql_begin)+"ms.");//数据操作花费时间 36 } 37 }
output:
