读写 excel 和 xml

一、新建一个excel表格

二、新建一个java 工程导入 jxl-2.6.12.jar (用来解析excel的api)

三、新建一个相应的实体类 user

package cn.rebuild;

public class User {
	private String name;
	private String age;
	private String address;
	private String phone;
	@Override
	public String toString() {
		return "[ name = " + name + ", age = " + age + ", address = " + address + ", phone = " + phone + " ]";
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getAge() {
		return age;
	}
	public void setAge(String age) {
		this.age = age;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	public String getPhone() {
		return phone;
	}
	public void setPhone(String phone) {
		this.phone = phone;
	}
}

四、建一个读excel文件内容的类ReadFromExcel

package cn.rebuild;

import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;

public class ReadFromExcel {
	    //定义实体的集合
		public  static List<User> list = new ArrayList<User>();

		public static void readExcelFile(String filePath) {
			try {
				InputStream is = new FileInputStream(filePath);
				Workbook rwb = Workbook.getWorkbook(is);
				// 获得总的Sheets，得到sheet的层数
				Sheet[] sheets = rwb.getSheets();
				int sheetLen = sheets.length;
				// 获得第一个Sheets 的结果
				jxl.Sheet rs = rwb.getSheet(0);
				int num_row = rs.getRows();
				int num_column = rs.getColumns();
				for (int j = 0; j < num_row; j++) {
					User user = new User();
					// 得到第j行的所有值
					Cell[] cell = rs.getRow(j);
					for (int column_index = 0; column_index < num_column; column_index++) {
						// 得到第j行，第column_indexs列的值
						String value = cell[column_index].getContents();
						//System.out.print(value + " ");
						//从第二行开始将值存入到实体里面并添加到list中
						if (j >= 1) {
							String columnValue = rs.getRow(j)[column_index].getContents();
							switch(column_index){
								case 1 : user.setName(columnValue);;break;
								case 2 : user.setAge(columnValue);;break;
								case 3 : user.setAddress(columnValue);;break;
								case 4 : user.setPhone(columnValue);;break;
								default : System.out.println("");break;
								}
						}
					}
					System.out.println("");
					if (j >= 1) {
						list.add(user);
					}
				}
			} catch (Exception ex) {
				ex.printStackTrace();
			}
		}

		public static void main(String[] args) {
			readExcelFile("d://temp/user.xls");
			for(Iterator<User> it = list.iterator();it.hasNext();){
				System.out.println(it.next().toString());
			}
		}
}

　五、运行结果