//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();}@Overridepublic 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();}}