一、下载jxl.jar包导入到工程中
http://download.youkuaiyun.com/detail/lrici/9758600
二、新建Book.java
- package com.cc.reflection;
- public class Book {
- private int id;
- private String name;
- private String type;
- public int getId() {
- return id;
- }
- public void setId(int id) {
- this.id = id;
- }
- public String getName() {
- return name;
- }
- public void setName(String name) {
- this.name = name;
- }
- public String getType() {
- return type;
- }
- public void setType(String type) {
- this.type = type;
- }
- }
三、新建ExcelBook
- package com.cc.reflection;
- import java.io.File;
- import java.io.IOException;
- import java.util.ArrayList;
- import jxl.Cell;
- import jxl.Sheet;
- import jxl.Workbook;
- import jxl.read.biff.BiffException;
- import jxl.write.Label;
- import jxl.write.WritableSheet;
- import jxl.write.WritableWorkbook;
- import jxl.write.WriteException;
- public class ExcelBook {
- //将数据导出到Excel
- public void excelOut(ArrayList<Book> arrayList) {
- WritableWorkbook bWorkbook = null;
- try {
- // 创建Excel对象
- bWorkbook = Workbook.createWorkbook(new File("D:/book.xls"));
- // 通过Excel对象创建一个选项卡对象
- WritableSheet sheet = bWorkbook.createSheet("sheet1", 0);
- //使用循环将数据读出
- for (int i = 0; i < arrayList.size(); i++) {
- Book book=arrayList.get(i);
- Label label=new Label(0,i,String.valueOf(book.getId()));
- Label label1=new Label(1,i,String.valueOf(book.getName()));
- Label label2=new Label(2,i,String.valueOf(book.getType()));
- sheet.addCell(label);
- sheet.addCell(label1);
- sheet.addCell(label2);
- }
- // 创建一个单元格对象,第一个为列,第二个为行,第三个为值
- Label label = new Label(0, 2, "test");
- // 将创建好的单元格放入选项卡中
- //sheet.addCell(label);
- // 写如目标路径
- bWorkbook.write();
- } catch (Exception e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- } finally {
- try {
- bWorkbook.close();
- } catch (WriteException | IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- }
- //将Excel中的数据导入
- public ArrayList<Book> ExcelIn(){
- ArrayList<Book>arrayList=new ArrayList<Book>();
- Workbook bWorkbook=null;
- try {
- bWorkbook=Workbook.getWorkbook(new File("D:/book.xls"));
- Sheet sheet=bWorkbook.getSheet(0);
- for (int i = 0; i < sheet.getRows(); i++) {
- Book book=new Book();
- //获取单元格对象
- Cell cell =sheet.getCell(0,i);
- //获取单元格的值
- book.setId(Integer.valueOf(cell.getContents()));
- book.setName(sheet.getCell(1,i).getContents());
- book.setType(sheet.getCell(2, i).getContents() );
- arrayList.add(book);
- }
- } catch (BiffException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }finally {
- bWorkbook.close();
- }
- return arrayList;
- }
- public static void main(String[] args) {
- //将数据导出到Excel中
- ExcelBook book = new ExcelBook();
- // ArrayList<Book> arrayList = new ArrayList<Book>();
- // Book bo = new Book();
- // bo.setId(1);
- // bo.setName("酒馆");
- // bo.setType("生活");
- //
- // Book bo1 = new Book();
- // bo1.setId(2);
- // bo1.setName("酒馆1");
- // bo1.setType("生活1");
- //
- // arrayList.add(bo);
- // arrayList.add(bo1);
- // book.excelOut(arrayList);
- //将数据从Excel中导入
- ArrayList<Book> arrayList1 = book.ExcelIn();
- for(Book bo2:arrayList1){
- System.out.println(bo2.getName()+bo2.getType());
- }
- }
- }
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