Excel导入/导出

1、依赖jar包

jxl.jar

2、导入

1. publicstaticvoid main(String[] args){
2. /**Excel文件转JavaBean**/
3. List<StuEntity> listExcel=StuService.getAllByExcel("d://book.xls");
4. //保存到数据库
5. ...
6. }

 

1. publicstaticList<StuEntity> getAllByExcel(String file){
2. List<StuEntity> list=newArrayList<StuEntity>();
3. try{
4. /**Excel文件转工作薄**/
5. Workbook rwb=Workbook.getWorkbook(newFile(file));
6. Sheet rs=rwb.getSheet("Test Shee 1");//获取表
7. int clos=rs.getColumns();//获取列
8. int rows=rs.getRows();//获取行
9. /**工作薄转JavaBean**/
10. for(int i =1; i < rows; i++){
11. for(int j =0; j < clos; j++){
12. String id=rs.getCell(j++, i).getContents();//获取单元格
13. String name=rs.getCell(j++, i).getContents();
14. String sex=rs.getCell(j++, i).getContents();
15. String num=rs.getCell(j++, i).getContents();
16. list.add(newStuEntity(Integer.parseInt(id), name, sex,Integer.parseInt(num)));
17. }
18. }
19. }catch(Exception e){
20. e.printStackTrace();
21. }
22. return list;
23. }

3、导出

1. publicstaticvoid main(String[] args){
2. try{
3.            /**JavaBean**/

4. List<StuEntity> list=StuService.getAllByDb();
5. Label labelId=newLabel(0,0,"编号(id)");//表示第
6. Label labelName=newLabel(1,0,"姓名(name)");
7. Label labelSex=newLabel(2,0,"性别(sex)");
8. Label labelNum=newLabel(3,0,"薪水(num)");
10. /**创建Excel文件**/
11. String fileName ="D://book.xls";
12. File file=newFile(fileName);
13. if(!file.exists()){
14. file.createNewFile();
15. }
16. /**Excel文件转工作薄**/
17. WritableWorkbook wwb =Workbook.createWorkbook(file);
19. /**创建表**/
20. WritableSheet ws = wwb.createSheet("Test Shee 1",0);
21. ws.addCell(labelId);//添加单元格
22. ws.addCell(labelName);
23. ws.addCell(labelSex);
24. ws.addCell(labelNum);
25. for(int i =0; i < list.size(); i++){
26. Label labelId_i=newLabel(0, i+1, list.get(i).getId()+"");
27. Label labelName_i=newLabel(1, i+1, list.get(i).getName());
28. Label labelSex_i=newLabel(2, i+1, list.get(i).getSex());
29. Label labelNum_i=newLabel(3, i+1, list.get(i).getNum()+"");
30. ws.addCell(labelId_i);
31. ws.addCell(labelName_i);
32. ws.addCell(labelSex_i);
33. ws.addCell(labelNum_i);
34. }
35. //写进文档
36. wwb.write();
37. // 关闭Excel工作簿对象
38. wwb.close();
39. }catch(Exception e){
40. // TODO Auto-generated catch block
41. e.printStackTrace();
42. }
43. }

 

 

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