JAVA实现创建Excel表并导出（转发）

最近在做毕设，要求导出word,excel,pdf，这是excel。

原文是：http://blog.csdn.net/u014621859/article/details/54944059

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<span style="font-family:Verdana, Arial, Helvetica, sans-serif;line-height:25.2px;background-color:rgb(255,255,255);">1.首先下载poi-3.6-20091214.jar，下载地址如下：</span>

 

http://download.csdn.net/detail/evangel_z/3895051

或者使用Maven仓库管理，在pom文件添加坐标

            <dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi</artifactId>
   <version>3.15</version>
           </dependency>

2.Member.java   创建一个实体对象

package com.leyooe.common.bean.customizedproperty;
import java.util.Date;
public class Member{
   private Integer code;

   private String name;

   private Integer age;

   private Date birth;

    public Student(Integer code, String name, Integer age, Date birth) {
    super();
    this.code = code;
    this.name = name;
    this.age = age;
    this.birth = birth;
}

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public Date getBirth() {
        return birth;
    }

    public void setBirth(Date birth) {
        this.birth = birth;
    }



}

3.CreateSimpleExcelToDisk.java

 

package com.leyooe.otw.api.file;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import com.leyooe.common.bean.customizedproperty.Member;

public class CreateSimpleExcelToDisk
{
    /**
     * @功能：手工构建一个简单格式的Excel
     */
    private static List<Member> getMember() throws Exception
    {
        List list = new ArrayList();
        SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd");

        Member user1 = new Member(1, "熊大", 24, df.parse("1993-08-28"));
        Member user2 = new Member(2, "熊二", 23, df.parse("1994-08-19"));
        Member user3 = new Member(3, "熊熊", 24, df.parse("1983-11-22"));
        list.add(user1);
        list.add(user2);
        list.add(user3);

        return list;
    }

    public static void main(String[] args) throws Exception
    {
        // 第一步，创建一个webbook，对应一个Excel文件
        HSSFWorkbook wb = new HSSFWorkbook();
        // 第二步，在webbook中添加一个sheet,对应Excel文件中的sheet
        HSSFSheet sheet = wb.createSheet("学生表一");
        // 第三步，在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
        HSSFRow row = sheet.createRow((int) 0);
        // 第四步，创建单元格，并设置值表头 设置表头居中
        HSSFCellStyle style = wb.createCellStyle();
        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式

        HSSFCell cell = row.createCell((short) 0);
        cell.setCellValue("学号");
        cell.setCellStyle(style);
        cell = row.createCell((short) 1);
        cell.setCellValue("姓名");
        cell.setCellStyle(style);
        cell = row.createCell((short) 2);
        cell.setCellValue("年龄");
        cell.setCellStyle(style);
        cell = row.createCell((short) 3);
        cell.setCellValue("生日");
        cell.setCellStyle(style);

        // 第五步，写入实体数据 实际应用中这些数据从数据库得到，
        List list = CreateSimpleExcelToDisk.getMember();

        for (int i = 0; i < list.size(); i++)
        {
            row = sheet.createRow((int) i + 1);
            Member stu = (Member) list.get(i);
            // 第四步，创建单元格，并设置值
            row.createCell((short) 0).setCellValue((double) stu.getCode());
            row.createCell((short) 1).setCellValue(stu.getName());
            row.createCell((short) 2).setCellValue((double) stu.getAge());
            cell = row.createCell((short) 3);
            cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(stu
                    .getBirth()));
        }
        // 第六步，将文件存到指定位置
        try
        {
            FileOutputStream fout = new FileOutputStream("E:/Members.xls");
            wb.write(fout);
            fout.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}

 

excel表格就被保存到指定位置了。

 

 

替换第六步可实现下载

// 第六步，下载excel

        OutputStream out = null;
        try {
            out = response.getOutputStream();
            String fileName = "enroll.xls";// 文件名
            response.setContentType("application/x-msdownload");
            response.setHeader("Content-Disposition", "attachment; filename="
                                                    + URLEncoder.encode(fileName, "UTF-8"));
            wb.write(out);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }