数据库查询的数据导出到xls表，集合数据导出到xls表

//实体类
package com.outxls;

public class Student {

	private Integer studentId;
	private String  studentName;
	private String 	studentClass;
	private String 	studentTel;
	private String  studentEmail;
	public Integer getStudentId() {
		return studentId;
	}
	public void setStudentId(Integer studentId) {
		this.studentId = studentId;
	}
	public String getStudentName() {
		return studentName;
	}
	public void setStudentName(String studentName) {
		this.studentName = studentName;
	}
	public String getStudentClass() {
		return studentClass;
	}
	public void setStudentClass(String studentClass) {
		this.studentClass = studentClass;
	}
	public String getStudentTel() {
		return studentTel;
	}
	public void setStudentTel(String studentTel) {
		this.studentTel = studentTel;
	}
	public String getStudentEmail() {
		return studentEmail;
	}
	public void setStudentEmail(String studentEmail) {
		this.studentEmail = studentEmail;
	}
	public Student(Integer studentId, String studentName, String studentClass, String studentTel, String studentEmail) {
		super();
		this.studentId = studentId;
		this.studentName = studentName;
		this.studentClass = studentClass;
		this.studentTel = studentTel;
		this.studentEmail = studentEmail;
	}
	public Student() {
		super();

	}
	@Override
	public String toString() {
		return "Student [studentId=" + studentId + ", studentName=" + studentName + ", studentClass=" + studentClass
				+ ", studentTel=" + studentTel + ", studentEmail=" + studentEmail + "]";
	}

}

package com.outxls;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

public class OutXlsUtil {

	public static void main(String[] args) {
		//省去数据库查询代码  ，所有我自己直接写了一个集合代替查询到的数据
		List<Student> stulist=new ArrayList<Student>();
		Student stu=null;
		for(int i=0;i<10;i++) {
			stu=new Student();
			stu.setStudentId(i+1);
			stu.setStudentName("小明"+(i+1));
			stu.setStudentClass("一班");
			stu.setStudentTel("1337098123"+i);
			stu.setStudentEmail("7632832"+i+"@qq.com");
			stulist.add(stu);
		}

		try {
			outFilesUtil(stulist);
		} catch (RowsExceededException e) {

			e.printStackTrace();
		} catch (WriteException e) {

			e.printStackTrace();
		} catch (IOException e) {

			e.printStackTrace();
		}
	}

	/**
	 *
	 * @param stulist 传一个集合
	 * @throws IOException
	 * @throws RowsExceededException
	 * @throws WriteException
	 */
	public static void outFilesUtil(List<Student> stulist) throws IOException, RowsExceededException, WriteException {
		//用一个string 数组来设置xls表头
		String[] title = { "序号", "姓名", "班级", "手机号码", "邮箱" };
		// 创建一个输出的xls文件路径
		String outPath = "C:\\Student.xls";
		// 创建Excel 工作
		WritableWorkbook wwb;
		OutputStream os = null;
		//输出流
		os = new FileOutputStream(outPath);
		wwb = Workbook.createWorkbook(os);
		// 添加第一个工作表并设置第一个Sheet的名字
		WritableSheet sheet = wwb.createSheet("学生信息", 0);
		Label label;
		for (int i = 0; i < title.length; i++) {
			//设置表头
			label = new Label(i, 0, title[i]);
			sheet.addCell(label);
		}

		// 这里是将查询的数据填写到xls表
		for (int j = 0; j < stulist.size(); j++) {
			//1 列
			label = new Label(0, j + 1, stulist.get(j).getStudentId().toString());
			sheet.addCell(label);
			//2 列
			label = new Label(1, j + 1, stulist.get(j).getStudentName());
			sheet.addCell(label);
			//3 列
			label = new Label(2, j + 1, stulist.get(j).getStudentClass());
			sheet.addCell(label);
			//4 列
			label = new Label(3, j + 1, stulist.get(j).getStudentTel());
			sheet.addCell(label);
			//5 列
			label = new Label(4, j + 1, stulist.get(j).getStudentEmail());
			sheet.addCell(label);
		}
		// 写入数据
		wwb.write();
		//刷新
		os.flush();
		// 关闭文件
		wwb.close();

	}

}

 需要jxt.jar