EXCEL导入导出使用的框架

最新推荐文章于 2025-03-28 17:25:57 发布

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最新推荐文章于 2025-03-28 17:25:57 发布

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分类专栏： java 文章标签： Excel

本文链接：https://blog.youkuaiyun.com/qq_36323075/article/details/97625213

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本文介绍了一种名为Easypoi的免费开源工具，以及一个实用的Excel导出工具，两者均能简化Excel操作流程，特别适用于Java开发者。Easypoi提供了丰富的中文文档，而自定义工具则通过注解简化了Excel导出过程，适用于大数据量导出。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

以前excel使用的都是poi但是在使用过程中比较麻烦，上次做一个项目，发现一个很好用的工具们今天分享给大家。
1、使用Easypoi，免费开源是国内开发的，中文文档看起来比较方便，这个我就不评论了，大家上官网看看。
官网地址：http://easypoi.mydoc.io/#text_173307
2、这个是重点，也是我们项目中使用到的。这个Excle导出工具不知是哪位大神写的，我只是分享。
引入pom：

<dependency>
	<groupId>org.apache.poi</groupId>
	<artifactId>poi</artifactId>
	<version>3.9</version>
</dependency>

复制一下代码到项目：
新建你要导出的实体类：

/**
 * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.newtouch.modules.mba.entity;

import org.hibernate.validator.constraints.Length;
import java.util.Date;
import com.fasterxml.jackson.annotation.JsonFormat;
import javax.validation.constraints.NotNull;

import com.newtouch.common.persistence.DataEntity;
import com.newtouch.common.utils.excel.annotation.ExcelField;

/**
 * 在线报名提交学员信息Entity
 * @author long.zhou
 * @version 2016-08-04
 */
public class ApplyOnline extends DataEntity<ApplyOnline> {
	
	private static final long serialVersionUID = 1L;
	private String name;		// 学生姓名
	private String sex;		// 性别
	private String nation;		// 民族
	private String politicsStatus;		// 政治面貌
	private String nativePlace;		// 籍贯
	private String maritalStatus;		// 婚姻状况
	private Date birthday;		// 生日
	private String identityCard;		// 身份证号
	private String address;		// 通讯地址
	private String postcode;		// 邮编
	private String telephone;		// 固定电话
	private String mobilephone;		// 移动电话
	private String email;		// 电子油箱
	private String studyMode;		// 学习形式
	private String school;		// 毕业院校
	private String major;		// 毕业专业
	private Date graduationDate;		// 毕业时间
	private String diploma;		// 学历
	private String graduationCertificateId;		// 毕业证号
	private String company;		// 工作单位
	private String job;		// 工作岗位
	private String yearsOfWorking;		// 工作年限
	private String yearsOfManage;		// 管理岗位年限
	private String workingExperience;		// 工作经验
	private String emergencyContactName;		// 紧急联系人姓名
	private String emergencyContactPhone;		// 紧急联系人电话
	private String studyLocation;		// 就读教学点
	private Date applytime;		//提交时间
	private String project;		//报名项目
	private String photo;		//照片路径
	private String file;		//附件路径
	private String flag;		//用于学生信息查询过渡参数
	private String qc;			//用于学生信息查询过渡参数
	private String interviewtimes;//面试批次
	
	private String bDate;		//简历预览生日
	private String gDate;		//简历预览毕业时间
	
	
	private Date startDate;
	private Date endDate;
	public ApplyOnline() {
		super();
	}


	public ApplyOnline(String id){
		super(id);
	}

	@Length(min=1, max=20, message="学生姓名长度必须介于 1 和 20 之间")
	@ExcelField(title="考生姓名", type=1, align=2, sort=1)
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	@Length(min=1, max=5, message="性别长度必须介于 1 和 5 之间")
	@ExcelField(title="性别", type=1, align=2, sort=2)
	public String getSex() {
		return sex;
	}

	public void setSex(String sex) {
		this.sex = sex;
	}
	
	@Length(min=1, max=20, message="民族长度必须介于 1 和 20 之间")
	@ExcelField(title="民族", type=1, align=2, sort=3)
	public String getNation() {
		return nation;
	}

	public void setNation(String nation) {
		this.nation = nation;
	}
	
	@Length(min=1, max=20, message="政治面貌长度必须介于 1 和 20 之间")
	@ExcelField(title="政治面貌", type=1, align=2, sort=4)
	public String getPoliticsStatus() {
		return politicsStatus;
	}

	public void setPoliticsStatus(String politicsStatus) {
		this.politicsStatus = politicsStatus;
	}
	
	@Length(min=1, max=20, message="籍贯长度必须介于 1 和 20 之间")
	@ExcelField(title="籍贯", type=1, align=2, sort=5)
	public String getNativePlace() {
		return nativePlace;
	}

	public void setNativePlace(String nativePlace) {
		this.nativePlace = nativePlace;
	}
	
	@Length(min=1, max=10, message="婚姻状况长度必须介于 1 和 10 之间")
	@ExcelField(title="婚姻状况", type=1, align=2, sort=6)
	public String getMaritalStatus() {
		return maritalStatus;
	}

	public void setMaritalStatus(String maritalStatus) {
		this.maritalStatus = maritalStatus;
	}
	
	@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
	@NotNull(message="生日不能为空")
	@ExcelField(title="生日", type=1, align=2, sort=7)
	public Date getBirthday() {
		return birthday;
	}

	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}
	
	@Length(min=1, max=20, message="身份证号长度必须介于 1 和 20 之间")
	@ExcelField(title="身份证号", type=1, align=2, sort=8)
	public String getIdentityCard() {
		return identityCard;
	}

	public void setIdentityCard(String identityCard) {
		this.identityCard = identityCard;
	}
	
	@Length(min=1, max=100, message="通讯地址长度必须介于 1 和 100 之间")
	@ExcelField(title="通讯地址", type=1, align=2, sort=9)
	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}
	
	@Length(min=1, max=20, message="邮编长度必须介于 1 和 20 之间")
	@ExcelField(title="邮编", type=1, align=2, sort=10)
	public String getPostcode() {
		return postcode;
	}

	public void setPostcode(String postcode) {
		this.postcode = postcode;
	}
	
	@Length(min=1, max=20, message="固定电话长度必须介于 1 和 20 之间")
	@ExcelField(title="固定电话", type=1, align=2, sort=11)
	public String getTelephone() {
		return telephone;
	}

	public void setTelephone(String telephone) {
		this.telephone = telephone;
	}
	
	@Length(min=1, max=20, message="移动电话长度必须介于 1 和 20 之间")
	@ExcelField(title="移动电话", type=1, align=2, sort=12)
	public String getMobilephone() {
		return mobilephone;
	}

	public void setMobilephone(String mobilephone) {
		this.mobilephone = mobilephone;
	}
	
	@ExcelField(title="电子邮箱", type=1, align=2, sort=13)
	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	@Length(min=1, max=20, message="学习形式长度必须介于 1 和 20 之间")
	@ExcelField(title="学习形式", type=1, align=2, sort=14)
	public String getStudyMode() {
		return studyMode;
	}

	public void setStudyMode(String studyMode) {
		this.studyMode = studyMode;
	}
	
	@Length(min=1, max=20, message="毕业院校长度必须介于 1 和 20 之间")
	@ExcelField(title="毕业院校", type=1, align=2, sort=15)
	public String getSchool() {
		return school;
	}

	public void setSchool(String school) {
		this.school = school;
	}
	
	@Length(min=1, max=20, message="毕业专业长度必须介于 1 和 20 之间")
	@ExcelField(title="毕业专业", type=1, align=2, sort=16)
	public String getMajor() {
		return major;
	}

	public void setMajor(String major) {
		this.major = major;
	}
	
	@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
	@NotNull(message="毕业时间不能为空")
	@ExcelField(title="毕业时间", type=1, align=2, sort=17)
	public Date getGraduationDate() {
		return graduationDate;
	}

	public void setGraduationDate(Date graduationDate) {
		this.graduationDate = graduationDate;
	}
	
	@Length(min=1, max=20, message="学历长度必须介于 1 和 20 之间")
	@ExcelField(title="学历", type=1, align=2, sort=18)
	public String getDiploma() {
		return diploma;
	}

	public void setDiploma(String diploma) {
		this.diploma = diploma;
	}
	
	@Length(min=1, max=30, message="毕业证号长度必须介于 1 和 30 之间")
	@ExcelField(title="毕业证号", type=1, align=2, sort=19)
	public String getGraduationCertificateId() {
		return graduationCertificateId;
	}

	public void setGraduationCertificateId(String graduationCertificateId) {
		this.graduationCertificateId = graduationCertificateId;
	}
	
	@Length(min=1, max=20, message="工作单位长度必须介于 1 和 20 之间")
	@ExcelField(title="工作单位", type=1, align=2, sort=20)
	public String getCompany() {
		return company;
	}

	public void setCompany(String company) {
		this.company = company;
	}
	
	@Length(min=1, max=20, message="工作岗位长度必须介于 1 和 20 之间")
	@ExcelField(title="工作岗位", type=1, align=2, sort=21)
	public String getJob() {
		return job;
	}

	public void setJob(String job) {
		this.job = job;
	}
	
	@Length(min=1, max=10, message="工作年限长度必须介于 1 和 10 之间")
	@ExcelField(title="工作年限", type=1, align=2, sort=22)
	public String getYearsOfWorking() {
		return yearsOfWorking;
	}

	public void setYearsOfWorking(String yearsOfWorking) {
		this.yearsOfWorking = yearsOfWorking;
	}
	
	@Length(min=1, max=10, message="管理岗位年限长度必须介于 1 和 10 之间")
	@ExcelField(title="管理岗位年限", type=1, align=2, sort=23)
	public String getYearsOfManage() {
		return yearsOfManage;
	}

	public void setYearsOfManage(String yearsOfManage) {
		this.yearsOfManage = yearsOfManage;
	}
	
	@Length(min=1, max=300, message="工作经验长度必须介于 1 和 300 之间")
	@ExcelField(title="工作经验", type=1, align=2, sort=24)
	public String getWorkingExperience() {
		return workingExperience;
	}

	public void setWorkingExperience(String workingExperience) {
		this.workingExperience = workingExperience;
	}
	
	@Length(min=1, max=10, message="紧急联系人姓名长度必须介于 1 和 10 之间")
	@ExcelField(title="紧急联系人姓名", type=1, align=2, sort=25)
	public String getEmergencyContactName() {
		return emergencyContactName;
	}

	public void setEmergencyContactName(String emergencyContactName) {
		this.emergencyContactName = emergencyContactName;
	}
	
	@Length(min=1, max=20, message="紧急联系人电话长度必须介于 1 和 20 之间")
	@ExcelField(title="紧急联系人电话", type=1, align=2, sort=26)
	public String getEmergencyContactPhone() {
		return emergencyContactPhone;
	}

	public void setEmergencyContactPhone(String emergencyContactPhone) {
		this.emergencyContactPhone = emergencyContactPhone;
	}
	
	@Length(min=1, max=10, message="就读教学点长度必须介于 1 和 10 之间")
	@ExcelField(title="就读教学点", type=1, align=2, sort=27)
	public String getStudyLocation() {
		return studyLocation;
	}

	public void setStudyLocation(String studyLocation) {
		this.studyLocation = studyLocation;
	}

	@Length(min=1, max=20, message="面試批次在1到20之間")
	@ExcelField(title="考生面試批次", type=1, align=2, sort=28)
	public String getinterviewtimes() {
		return interviewtimes;
	}

	public void setinterviewtimes(String interviewtimes) {
		this.interviewtimes = interviewtimes;
	}
	
	@ExcelField(title="提交报名时间", type=1, align=2, sort=29)
	public Date getApplytime() {
		return applytime;
	}

	public void setApplytime(Date applytime) {
		this.applytime = applytime;
	}

	public Date getStartDate() {
		return startDate;
	}

	public void setStartDate(Date startDate) {
		this.startDate = startDate;
	}

	public Date getEndDate() {
		return endDate;
	}

	public void setEndDate(Date endDate) {
		this.endDate = endDate;
	}

	@ExcelField(title="报名项目", type=1, align=2, sort=30)
	public String getProject() {
		return project;
	}

	public void setProject(String project) {
		this.project = project;
	}

	public String getPhoto() {
		return photo;
	}

	public void setPhoto(String photo) {
		this.photo = photo;
	}

	/**
	 * @return the file
	 */
	public String getFile() {
		return file;
	}

	/**
	 * @param file the file to set
	 */
	public void setFile(String file) {
		this.file = file;
	}

	/**
	 * @return the flag
	 */
	public String getFlag() {
		return flag;
	}

	/**
	 * @param flag the flag to set
	 */
	public void setFlag(String flag) {
		this.flag = flag;
	}

	/**
	 * @return the qc
	 */
	public String getQc() {
		return qc;
	}

	/**
	 * @param qc the qc to set
	 */
	public void setQc(String qc) {
		this.qc = qc;
	}

	public String getbDate() {
		return bDate;
	}

	public void setbDate(String bDate) {
		this.bDate = bDate;
	}

	public String getgDate() {
		return gDate;
	}

	public void setgDate(String gDate) {
		this.gDate = gDate;
	}
}

新建注解：

/**
 * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.newtouch.common.utils.excel.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Excel注解定义
 * @author ThinkGem
 * @version 2013-03-10
 */
@Target({ElementType.METHOD, ElementType.FIELD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface ExcelField {

	/**
	 * 导出字段名（默认调用当前字段的“get”方法，如指定导出字段为对象，请填写“对象名.对象属性”，例：“area.name”、“office.name”）
	 */
	String value() default "";
	
	/**
	 * 导出字段标题（需要添加批注请用“**”分隔，标题**批注，仅对导出模板有效）
	 */
	String title();
	
	/**
	 * 字段类型（0：导出导入；1：仅导出；2：仅导入）
	 */
	int type() default 0;

	/**
	 * 导出字段对齐方式（0：自动；1：靠左；2：居中；3：靠右）
	 */
	int align() default 0;
	
	/**
	 * 导出字段字段排序（升序）
	 */
	int sort() default 0;

	/**
	 * 如果是字典类型，请设置字典的type值
	 */
	String dictType() default "";
	
	/**
	 * 反射类型
	 */
	Class<?> fieldType() default Class.class;
	
	/**
	 * 字段归属组（根据分组导出导入）
	 */
	int[] groups() default {};
}

导出excle的文件工具类

/**
 * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.newtouch.common.utils.excel;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Comment;
import org.apache.poi.ss.usermodel.DataFormat;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.collect.Lists;
import com.newtouch.common.utils.Encodes;
import com.newtouch.common.utils.Reflections;
import com.newtouch.common.utils.excel.annotation.ExcelField;
import com.newtouch.modules.sys.utils.DictUtils;

/**
 * 导出Excel文件（导出“XLSX”格式，支持大数据量导出   @see org.apache.poi.ss.SpreadsheetVersion）
 * @author ThinkGem
 * @version 2013-04-21
 */
public class ExportExcel {
	
	public static int index = 1;
	
	private static Logger log = LoggerFactory.getLogger(ExportExcel.class);
			
	/**
	 * 工作薄对象
	 */
	private SXSSFWorkbook wb;
	
	/**
	 * 工作表对象
	 */
	private Sheet sheet;
	
	/**
	 * 样式列表
	 */
	private Map<String, CellStyle> styles;
	
	/**
	 * 当前行号
	 */
	private int rownum;
	
	/**
	 * 注解列表（Object[]{ ExcelField, Field/Method }）
	 */
	List<Object[]> annotationList = Lists.newArrayList();
	
	/**
	 * 构造函数
	 * @param title 表格标题，传“空值”，表示无标题
	 * @param cls 实体对象，通过annotation.ExportField获取标题
	 */
	public ExportExcel(String title, Class<?> cls){
		this(title, cls, 1);
		index = 1;
	}
	
	/**
	 * 构造函数
	 * @param title 表格标题，传“空值”，表示无标题
	 * @param cls 实体对象，通过annotation.ExportField获取标题
	 * @param type 导出类型（1:导出数据；2：导出模板）
	 * @param groups 导入分组
	 */
	public ExportExcel(String title, Class<?> cls, int type, int... groups){
		// Get annotation field 
		Field[] fs = cls.getDeclaredFields();
		for (Field f : fs){
			ExcelField ef = f.getAnnotation(ExcelField.class);
			if (ef != null && (ef.type()==0 || ef.type()==type)){
				if (groups!=null && groups.length>0){
					boolean inGroup = false;
					for (int g : groups){
						if (inGroup){
							break;
						}
						for (int efg : ef.groups()){
							if (g == efg){
								inGroup = true;
								annotationList.add(new Object[]{ef, f});
								break;
							}
						}
					}
				}else{
					annotationList.add(new Object[]{ef, f});
				}
			}
		}
		// Get annotation method
		Method[] ms = cls.getDeclaredMethods();
		for (Method m : ms){
			ExcelField ef = m.getAnnotation(ExcelField.class);
			if (ef != null && (ef.type()==0 || ef.type()==type)){
				if (groups!=null && groups.length>0){
					boolean inGroup = false;
					for (int g : groups){
						if (inGroup){
							break;
						}
						for (int efg : ef.groups()){
							if (g == efg){
								inGroup = true;
								annotationList.add(new Object[]{ef, m});
								break;
							}
						}
					}
				}else{
					annotationList.add(new Object[]{ef, m});
				}
			}
		}
		// Field sorting
		Collections.sort(annotationList, new Comparator<Object[]>() {
			public int compare(Object[] o1, Object[] o2) {
				return new Integer(((ExcelField)o1[0]).sort()).compareTo(
						new Integer(((ExcelField)o2[0]).sort()));
			};
		});
		// Initialize
		List<String> headerList = Lists.newArrayList();
		for (Object[] os : annotationList){
			String t = ((ExcelField)os[0]).title();
			// 如果是导出，则去掉注释
			if (type==1){
				String[] ss = StringUtils.split(t, "**", 2);
				if (ss.length==2){
					t = ss[0];
				}
			}
			headerList.add(t);
		}
		initialize(title, headerList);
	}
	
	/**
	 * 构造函数
	 * @param title 表格标题，传“空值”，表示无标题
	 * @param headers 表头数组
	 */
	public ExportExcel(String title, String[] headers) {
		initialize(title, Lists.newArrayList(headers));
	}
	
	/**
	 * 构造函数
	 * @param title 表格标题，传“空值”，表示无标题
	 * @param headerList 表头列表
	 */
	public ExportExcel(String title, List<String> headerList) {
		initialize(title, headerList);
	}
	
	/**
	 * 初始化函数
	 * @param title 表格标题，传“空值”，表示无标题
	 * @param headerList 表头列表
	 */
	private void initialize(String title, List<String> headerList) {
		this.wb = new SXSSFWorkbook(500);
		this.sheet = wb.createSheet("Export");
		this.styles = createStyles(wb);
		// Create title
		if (StringUtils.isNotBlank(title)){
			Row titleRow = sheet.createRow(rownum++);
			titleRow.setHeightInPoints(30);
			Cell titleCell = titleRow.createCell(0);
			titleCell.setCellStyle(styles.get("title"));
			titleCell.setCellValue(title);
			sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(),
					titleRow.getRowNum(), titleRow.getRowNum(), headerList.size()-1));
		}
		// Create header
		if (headerList == null){
			throw new RuntimeException("headerList not null!");
		}
		Row headerRow = sheet.createRow(rownum++);
		headerRow.setHeightInPoints(16);
		for (int i = 0; i < headerList.size(); i++) {
			Cell cell = headerRow.createCell(i);
			cell.setCellStyle(styles.get("header"));
			String[] ss = StringUtils.split(headerList.get(i), "**", 2);
			if (ss.length==2){
				cell.setCellValue(ss[0]);
				Comment comment = this.sheet.createDrawingPatriarch().createCellComment(
						new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6));
				comment.setString(new XSSFRichTextString(ss[1]));
				cell.setCellComment(comment);
			}else{
				cell.setCellValue(headerList.get(i));
			}
			sheet.autoSizeColumn(i);
		}
		for (int i = 0; i < headerList.size(); i++) {  
			int colWidth = sheet.getColumnWidth(i)*2;
	        sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth);  
		}
		log.debug("Initialize success.");
	}
	
	/**
	 * 创建表格样式
	 * @param wb 工作薄对象
	 * @return 样式列表
	 */
	private Map<String, CellStyle> createStyles(Workbook wb) {
		Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
		
		CellStyle style = wb.createCellStyle();
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		Font titleFont = wb.createFont();
		titleFont.setFontName("Arial");
		titleFont.setFontHeightInPoints((short) 16);
		titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
		style.setFont(titleFont);
		styles.put("title", style);

		style = wb.createCellStyle();
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		style.setBorderRight(CellStyle.BORDER_THIN);
		style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
		style.setBorderLeft(CellStyle.BORDER_THIN);
		style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
		style.setBorderTop(CellStyle.BORDER_THIN);
		style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
		style.setBorderBottom(CellStyle.BORDER_THIN);
		style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
		Font dataFont = wb.createFont();
		dataFont.setFontName("Arial");
		dataFont.setFontHeightInPoints((short) 10);
		style.setFont(dataFont);
		styles.put("data", style);
		
		style = wb.createCellStyle();
		style.cloneStyleFrom(styles.get("data"));
		style.setAlignment(CellStyle.ALIGN_LEFT);
		styles.put("data1", style);

		style = wb.createCellStyle();
		style.cloneStyleFrom(styles.get("data"));
		style.setAlignment(CellStyle.ALIGN_CENTER);
		styles.put("data2", style);

		style = wb.createCellStyle();
		style.cloneStyleFrom(styles.get("data"));
		style.setAlignment(CellStyle.ALIGN_RIGHT);
		styles.put("data3", style);
		
		style = wb.createCellStyle();
		style.cloneStyleFrom(styles.get("data"));
//		style.setWrapText(true);
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
		style.setFillPattern(CellStyle.SOLID_FOREGROUND);
		Font headerFont = wb.createFont();
		headerFont.setFontName("Arial");
		headerFont.setFontHeightInPoints((short) 10);
		headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
		headerFont.setColor(IndexedColors.WHITE.getIndex());
		style.setFont(headerFont);
		styles.put("header", style);
		
		return styles;
	}

	/**
	 * 添加一行
	 * @return 行对象
	 */
	public Row addRow(){
		return sheet.createRow(rownum++);
	}
	

	/**
	 * 添加一个单元格
	 * @param row 添加的行
	 * @param column 添加列号
	 * @param val 添加值
	 * @return 单元格对象
	 */
	public Cell addCell(Row row, int column, Object val){
		return this.addCell(row, column, val, 0, Class.class);
	}
	
	/**
	 * 添加一个单元格
	 * @param row 添加的行
	 * @param column 添加列号
	 * @param val 添加值
	 * @param align 对齐方式（1：靠左；2：居中；3：靠右）
	 * @return 单元格对象
	 */
	public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType){
		Cell cell = row.createCell(column);
		CellStyle style = styles.get("data"+(align>=1&&align<=3?align:""));
		try {
			if (val == null){
				cell.setCellValue("");
			} else if (val instanceof String) {
				cell.setCellValue((String) val);
			} else if (val instanceof Integer) {
				cell.setCellValue((Integer) val);
			} else if (val instanceof Long) {
				cell.setCellValue((Long) val);
			} else if (val instanceof Double) {
				cell.setCellValue((Double) val);
			} else if (val instanceof Float) {
				cell.setCellValue((Float) val);
			} else if (val instanceof Date) {
				DataFormat format = wb.createDataFormat();
	            style.setDataFormat(format.getFormat("yyyy-MM-dd"));
				cell.setCellValue((Date) val);
			} else {
				if (fieldType != Class.class){
					cell.setCellValue((String)fieldType.getMethod("setValue", Object.class).invoke(null, val));
				}else{
					cell.setCellValue((String)Class.forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(), 
						"fieldtype."+val.getClass().getSimpleName()+"Type")).getMethod("setValue", Object.class).invoke(null, val));
				}
			}
		} catch (Exception ex) {
			log.info("Set cell value ["+row.getRowNum()+","+column+"] error: " + ex.toString());
			cell.setCellValue(val.toString());
		}
		cell.setCellStyle(style);
		return cell;
	}

	/**
	 * 添加数据（通过annotation.ExportField添加数据）
	 * @return list 数据列表
	 */
	public <E> ExportExcel setDataList(List<E> list){
		for (E e : list){
			int colunm = 0;
			Row row = this.addRow();
			StringBuilder sb = new StringBuilder();
			for (Object[] os : annotationList){
				ExcelField ef = (ExcelField)os[0];
				Object val = null;
				// Get entity value
				try{
					if (StringUtils.isNotBlank(ef.value())){
						val = Reflections.invokeGetter(e, ef.value());
					}else{
						if (os[1] instanceof Field){
							val = Reflections.invokeGetter(e, ((Field)os[1]).getName());
						}else if (os[1] instanceof Method){
							val = Reflections.invokeMethod(e, ((Method)os[1]).getName(), new Class[] {}, new Object[] {});
						}
					}
					// If is dict, get dict label
					if (StringUtils.isNotBlank(ef.dictType())){
						val = DictUtils.getDictLabel(val==null?"":val.toString(), ef.dictType(), "");
					}
				}catch(Exception ex) {
					// Failure to ignore
					log.info(ex.toString());
					val = "";
				}
				this.addCell(row, colunm++, val, ef.align(), ef.fieldType());
				sb.append(val + ", ");
			}
			log.debug("Write success: ["+row.getRowNum()+"] "+sb.toString());
		}
		return this;
	}
	
	/**
	 * 输出数据流
	 * @param os 输出数据流
	 */
	public ExportExcel write(OutputStream os) throws IOException{
		wb.write(os);
		return this;
	}
	
	/**
	 * 输出到客户端
	 * @param fileName 输出文件名
	 */
	public ExportExcel write(HttpServletResponse response, String fileName) throws IOException{
		response.reset();
        response.setContentType("application/octet-stream; charset=utf-8");
        response.setHeader("Content-Disposition", "attachment; filename="+Encodes.urlEncode(fileName));
		write(response.getOutputStream());
		return this;
	}
	
	/**
	 * 输出到文件
	 * @param fileName 输出文件名
	 */
	public ExportExcel writeFile(String name) throws FileNotFoundException, IOException{
		FileOutputStream os = new FileOutputStream(name);
		this.write(os);
		return this;
	}
	
	/**
	 * 清理临时文件
	 */
	public ExportExcel dispose(){
		wb.dispose();
		return this;
	}
	
//	/**
//	 * 导出测试
//	 */
//	public static void main(String[] args) throws Throwable {
//		
//		List<String> headerList = Lists.newArrayList();
//		for (int i = 1; i <= 10; i++) {
//			headerList.add("表头"+i);
//		}
//		
//		List<String> dataRowList = Lists.newArrayList();
//		for (int i = 1; i <= headerList.size(); i++) {
//			dataRowList.add("数据"+i);
//		}
//		
//		List<List<String>> dataList = Lists.newArrayList();
//		for (int i = 1; i <=1000000; i++) {
//			dataList.add(dataRowList);
//		}
//
//		ExportExcel ee = new ExportExcel("表格标题", headerList);
//		
//		for (int i = 0; i < dataList.size(); i++) {
//			Row row = ee.addRow();
//			for (int j = 0; j < dataList.get(i).size(); j++) {
//				ee.addCell(row, j, dataList.get(i).get(j));
//			}
//		}
//		
//		ee.writeFile("target/export.xlsx");
//
//		ee.dispose();
//		
//		log.debug("Export success.");
//		
//	}

}

导入excel的工具类

/**
 * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.newtouch.common.utils.excel;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;

import com.google.common.collect.Lists;
import com.newtouch.common.utils.Reflections;
import com.newtouch.common.utils.excel.annotation.ExcelField;
import com.newtouch.modules.sys.utils.DictUtils;

/**
 * 导入Excel文件（支持“XLS”和“XLSX”格式）
 * @author ThinkGem
 * @version 2013-03-10
 */
public class ImportExcel {
	
	private static Logger log = LoggerFactory.getLogger(ImportExcel.class);
			
	/**
	 * 工作薄对象
	 */
	private Workbook wb;
	
	/**
	 * 工作表对象
	 */
	private Sheet sheet;
	
	/**
	 * 标题行号
	 */
	private int headerNum;
	
	/**
	 * 构造函数
	 * @param path 导入文件，读取第一个工作表
	 * @param headerNum 标题行号，数据行号=标题行号+1
	 * @throws InvalidFormatException 
	 * @throws IOException 
	 */
	public ImportExcel(String fileName, int headerNum) 
			throws InvalidFormatException, IOException {
		this(new File(fileName), headerNum);
	}
	
	/**
	 * 构造函数
	 * @param path 导入文件对象，读取第一个工作表
	 * @param headerNum 标题行号，数据行号=标题行号+1
	 * @throws InvalidFormatException 
	 * @throws IOException 
	 */
	public ImportExcel(File file, int headerNum) 
			throws InvalidFormatException, IOException {
		this(file, headerNum, 0);
	}

	/**
	 * 构造函数
	 * @param path 导入文件
	 * @param headerNum 标题行号，数据行号=标题行号+1
	 * @param sheetIndex 工作表编号
	 * @throws InvalidFormatException 
	 * @throws IOException 
	 */
	public ImportExcel(String fileName, int headerNum, int sheetIndex) 
			throws InvalidFormatException, IOException {
		this(new File(fileName), headerNum, sheetIndex);
	}
	
	/**
	 * 构造函数
	 * @param path 导入文件对象
	 * @param headerNum 标题行号，数据行号=标题行号+1
	 * @param sheetIndex 工作表编号
	 * @throws InvalidFormatException 
	 * @throws IOException 
	 */
	public ImportExcel(File file, int headerNum, int sheetIndex) 
			throws InvalidFormatException, IOException {
		this(file.getName(), new FileInputStream(file), headerNum, sheetIndex);
	}
	
	/**
	 * 构造函数
	 * @param file 导入文件对象
	 * @param headerNum 标题行号，数据行号=标题行号+1
	 * @param sheetIndex 工作表编号
	 * @throws InvalidFormatException 
	 * @throws IOException 
	 */
	public ImportExcel(MultipartFile multipartFile, int headerNum, int sheetIndex) 
			throws InvalidFormatException, IOException {
		this(multipartFile.getOriginalFilename(), multipartFile.getInputStream(), headerNum, sheetIndex);
	}

	/**
	 * 构造函数
	 * @param path 导入文件对象
	 * @param headerNum 标题行号，数据行号=标题行号+1
	 * @param sheetIndex 工作表编号
	 * @throws InvalidFormatException 
	 * @throws IOException 
	 */
	public ImportExcel(String fileName, InputStream is, int headerNum, int sheetIndex) 
			throws InvalidFormatException, IOException {
		if (StringUtils.isBlank(fileName)){
			throw new RuntimeException("导入文档为空!");
		}else if(fileName.toLowerCase().endsWith("xls")){    
			this.wb = new HSSFWorkbook(is);    
        }else if(fileName.toLowerCase().endsWith("xlsx")){  
        	this.wb = new XSSFWorkbook(is);
        }else{  
        	throw new RuntimeException("文档格式不正确!");
        }  
		if (this.wb.getNumberOfSheets()<sheetIndex){
			throw new RuntimeException("文档中没有工作表!");
		}
		this.sheet = this.wb.getSheetAt(sheetIndex);
		this.headerNum = headerNum;
		log.debug("Initialize success.");
	}
	
	/**
	 * 获取行对象
	 * @param rownum
	 * @return
	 */
	public Row getRow(int rownum){
		return this.sheet.getRow(rownum);
	}

	/**
	 * 获取数据行号
	 * @return
	 */
	public int getDataRowNum(){
		return headerNum+1;
	}
	
	/**
	 * 获取最后一个数据行号
	 * @return
	 */
	public int getLastDataRowNum(){
		return this.sheet.getLastRowNum()+headerNum;
	}
	
	/**
	 * 获取最后一个列号
	 * @return
	 */
	public int getLastCellNum(){
		return this.getRow(headerNum).getLastCellNum();
	}
	
	/**
	 * 获取单元格值
	 * @param row 获取的行
	 * @param column 获取单元格列号
	 * @return 单元格值
	 */
	public Object getCellValue(Row row, int column){
		Object val = "";
		try{
			Cell cell = row.getCell(column);
			if (cell != null){
				if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC){
					val = cell.getNumericCellValue();
				}else if (cell.getCellType() == Cell.CELL_TYPE_STRING){
					val = cell.getStringCellValue();
				}else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA){
					val = cell.getCellFormula();
				}else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){
					val = cell.getBooleanCellValue();
				}else if (cell.getCellType() == Cell.CELL_TYPE_ERROR){
					val = cell.getErrorCellValue();
				}
			}
		}catch (Exception e) {
			return val;
		}
		return val;
	}
	
	/**
	 * 获取导入数据列表
	 * @param cls 导入对象类型
	 * @param groups 导入分组
	 */
	public <E> List<E> getDataList(Class<E> cls, int... groups) throws InstantiationException, IllegalAccessException{
		List<Object[]> annotationList = Lists.newArrayList();
		// Get annotation field 
		Field[] fs = cls.getDeclaredFields();
		for (Field f : fs){
			ExcelField ef = f.getAnnotation(ExcelField.class);
			if (ef != null && (ef.type()==0 || ef.type()==2)){
				if (groups!=null && groups.length>0){
					boolean inGroup = false;
					for (int g : groups){
						if (inGroup){
							break;
						}
						for (int efg : ef.groups()){
							if (g == efg){
								inGroup = true;
								annotationList.add(new Object[]{ef, f});
								break;
							}
						}
					}
				}else{
					annotationList.add(new Object[]{ef, f});
				}
			}
		}
		// Get annotation method
		Method[] ms = cls.getDeclaredMethods();
		for (Method m : ms){
			ExcelField ef = m.getAnnotation(ExcelField.class);
			if (ef != null && (ef.type()==0 || ef.type()==2)){
				if (groups!=null && groups.length>0){
					boolean inGroup = false;
					for (int g : groups){
						if (inGroup){
							break;
						}
						for (int efg : ef.groups()){
							if (g == efg){
								inGroup = true;
								annotationList.add(new Object[]{ef, m});
								break;
							}
						}
					}
				}else{
					annotationList.add(new Object[]{ef, m});
				}
			}
		}
		// Field sorting
		Collections.sort(annotationList, new Comparator<Object[]>() {
			public int compare(Object[] o1, Object[] o2) {
				return new Integer(((ExcelField)o1[0]).sort()).compareTo(
						new Integer(((ExcelField)o2[0]).sort()));
			};
		});
		//log.debug("Import column count:"+annotationList.size());
		// Get excel data
		List<E> dataList = Lists.newArrayList();
		for (int i = this.getDataRowNum(); i < this.getLastDataRowNum(); i++) {
			E e = (E)cls.newInstance();
			int column = 0;
			Row row = this.getRow(i);
			StringBuilder sb = new StringBuilder();
			for (Object[] os : annotationList){
				Object val = this.getCellValue(row, column++);
				if (val != null){
					ExcelField ef = (ExcelField)os[0];
					// If is dict type, get dict value
					if (StringUtils.isNotBlank(ef.dictType())){
						val = DictUtils.getDictValue(val.toString(), ef.dictType(), "");
						//log.debug("Dictionary type value: ["+i+","+colunm+"] " + val);
					}
					// Get param type and type cast
					Class<?> valType = Class.class;
					if (os[1] instanceof Field){
						valType = ((Field)os[1]).getType();
					}else if (os[1] instanceof Method){
						Method method = ((Method)os[1]);
						if ("get".equals(method.getName().substring(0, 3))){
							valType = method.getReturnType();
						}else if("set".equals(method.getName().substring(0, 3))){
							valType = ((Method)os[1]).getParameterTypes()[0];
						}
					}
					//log.debug("Import value type: ["+i+","+column+"] " + valType);
					try {
						if (valType == String.class){
							String s = String.valueOf(val.toString());
							if(StringUtils.endsWith(s, ".0")){
								val = StringUtils.substringBefore(s, ".0");
							}else{
								val = String.valueOf(val.toString());
							}
						}else if (valType == Integer.class){
							val = Double.valueOf(val.toString()).intValue();
						}else if (valType == Long.class){
							val = Double.valueOf(val.toString()).longValue();
						}else if (valType == Double.class){
							val = Double.valueOf(val.toString());
						}else if (valType == Float.class){
							val = Float.valueOf(val.toString());
						}else if (valType == Date.class){
							val = DateUtil.getJavaDate((Double)val);
						}else{
							if (ef.fieldType() != Class.class){
								val = ef.fieldType().getMethod("getValue", String.class).invoke(null, val.toString());
							}else{
								val = Class.forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(), 
										"fieldtype."+valType.getSimpleName()+"Type")).getMethod("getValue", String.class).invoke(null, val.toString());
							}
						}
					} catch (Exception ex) {
						log.info("Get cell value ["+i+","+column+"] error: " + ex.toString());
						val = null;
					}
					// set entity value
					if (os[1] instanceof Field){
						Reflections.invokeSetter(e, ((Field)os[1]).getName(), val);
					}else if (os[1] instanceof Method){
						String mthodName = ((Method)os[1]).getName();
						if ("get".equals(mthodName.substring(0, 3))){
							mthodName = "set"+StringUtils.substringAfter(mthodName, "get");
						}
						Reflections.invokeMethod(e, mthodName, new Class[] {valType}, new Object[] {val});
					}
				}
				sb.append(val+", ");
			}
			dataList.add(e);
			log.debug("Read success: ["+i+"] "+sb.toString());
		}
		return dataList;
	}

//	/**
//	 * 导入测试
//	 */
//	public static void main(String[] args) throws Throwable {
//		
//		ImportExcel ei = new ImportExcel("target/export.xlsx", 1);
//		
//		for (int i = ei.getDataRowNum(); i < ei.getLastDataRowNum(); i++) {
//			Row row = ei.getRow(i);
//			for (int j = 0; j < ei.getLastCellNum(); j++) {
//				Object val = ei.getCellValue(row, j);
//				System.out.print(val+", ");
//			}
//			System.out.print("\n");
//		}
//		
//	}

}

导出excle：

/**
	 * 导出考生数据
	 * 
	 * @param applyOnline
	 * @param request
	 * @param response
	 * @param redirectAttributes
	 * @return
	 */
	// @RequiresPermissions("mba:applyOnline:view")
	@RequestMapping(value = "export", method = RequestMethod.POST)
	public String exportFile(ApplyOnline applyOnline, HttpServletRequest request, HttpServletResponse response,
			RedirectAttributes redirectAttributes) {
		try {
			User user = UserUtils.getUser();
			String project = user.getProject();
			if (project != null) {
				applyOnline.setProject(project);
			}
			String fileName = "考生数据" + DateUtils.getDate("yyyyMMddHHmmss") + ".xlsx";
			List<ApplyOnline> list = applyOnlineService.findList(applyOnline);
			new ExportExcel("考生数据", ApplyOnline.class).setDataList(list).write(response, fileName).dispose();
			return null;
		} catch (Exception e) {
			logger.error("导出学生信息异常", e);
			addMessage(redirectAttributes, "导出用户失败！失败信息：" + e.getMessage());
		}
		return "redirect:" + adminPath + "/mba/applyOnline/list?repage";
	}