您的位置：首页 > 编程语言 > Java开发

重要：JAVA 导出EXCEL（POI方法）

2015-03-12 08:53 656 查看

package goodsmng;

import java.io.BufferedInputStream;

import java.io.FileInputStream;

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.InvocationTargetException;

import java.lang.reflect.Method;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Date;

import java.util.Iterator;

import java.util.List;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import javax.swing.JOptionPane;

import org.apache.poi.hssf.usermodel.HSSFCell;

import org.apache.poi.hssf.usermodel.HSSFCellStyle;

import org.apache.poi.hssf.usermodel.HSSFClientAnchor;

import org.apache.poi.hssf.usermodel.HSSFComment;

import org.apache.poi.hssf.usermodel.HSSFFont;

import org.apache.poi.hssf.usermodel.HSSFPatriarch;

import org.apache.poi.hssf.usermodel.HSSFRichTextString;

import org.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFSheet;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import org.apache.poi.hssf.util.HSSFColor;

import student.Book;

import student.ExportExcel;

import student.Student;

public class goodExcel<T> {

//메인입니다. ******************************************************************************************

public static void main(String[] args) {

    ExportExcel<Student> ex = new ExportExcel<Student>();

        String[] headers = { "넘버", "이름", "나이", "성별", "출생년월" };

        List<Student> dataset = new ArrayList<Student>();

        dataset.add(new Student(10000001, "김아무개", 20, true, new Date()));

        dataset.add(new Student(20000002, "홍길동", 24, false, new Date()));

        dataset.add(new Student(30000003, "김삿갓", 22, true, new Date()));



        ExportExcel<Book> ex2 = new ExportExcel<Book>();

        String[] headers2 = { "넘버", "도서명", "도서작가", "도서가격", "도서ISBN", "도서출판", "이미지" };

            List<Book> dataset2 = new ArrayList<Book>();

            try

            {

            BufferedInputStream bis = new BufferedInputStream( new FileInputStream("Z://book.jpg"));

                byte[] buf = new byte[bis.available()];

                while ((bis.read(buf)) != -1)

                {

                    //

                }

                dataset2.add(new Book(1, "jsp", "leno", 300.33f, "1234567",     "출판서1", buf));

                dataset2.add(new Book(2, "java", "brucl", 300.33f, "1234567",   "출판서2", buf));

                dataset2.add(new Book(3, "DOM", "lenotang", 300.33f, "1234567", "출판서1", buf));

                dataset2.add(new Book(4, "c++", "leno", 400.33f, "1234567",     "출판서1", buf));

                dataset2.add(new Book(5, "c#", "leno", 300.33f, "1234567",      "출판서3", buf));

                OutputStream out = new FileOutputStream("Z://test_1.xls");

                OutputStream out2 = new FileOutputStream("Z://test_2.xls");



                ex.exportExcel(headers, dataset, out);

                ex2.exportExcel(headers2, dataset2, out2);



                out.close();



                JOptionPane.showMessageDialog(null, "성공!");

                System.out.println("excel성공！");

            }

            catch (FileNotFoundException e)

            {

                e.printStackTrace();

            }

            catch (IOException e)

            {

                e.printStackTrace();

            }

        }

//엑셀 파일 만들기 ****************************************************************************************

public void exportExcel(String title, String[] headers, Collection<T> dataset, OutputStream out, String pattern) {

  HSSFWorkbook workbook = new HSSFWorkbook();//workbook만들기

  HSSFSheet sheet = workbook.createSheet(title);//시트 만들기

  sheet.setDefaultColumnWidth((short) 15);//셀 넓이 지정하기

  HSSFCellStyle style = workbook.createCellStyle();//셀 스타일생성

  //스타일 지정

  style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);

  style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

  style.setBorderBottom(HSSFCellStyle.BORDER_THIN);

  style.setBorderLeft(HSSFCellStyle.BORDER_THIN);

  style.setBorderRight(HSSFCellStyle.BORDER_THIN);

  style.setBorderTop(HSSFCellStyle.BORDER_THIN);

  style.setAlignment(HSSFCellStyle.ALIGN_CENTER);

  //폰트 생성

  HSSFFont font = workbook.createFont();

  font.setColor(HSSFColor.VIOLET.index);

  font.setFontHeightInPoints((short) 12);

  font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);

        //생성된 폰트 사용

  style.setFont(font);

  //다른 스타일 지정

  HSSFCellStyle style2 = workbook.createCellStyle();

  style2.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);

  style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

  style2.setBorderBottom(HSSFCellStyle.BORDER_THIN);

  style2.setBorderLeft(HSSFCellStyle.BORDER_THIN);

  style2.setBorderRight(HSSFCellStyle.BORDER_THIN);

  style2.setBorderTop(HSSFCellStyle.BORDER_THIN);

  style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);

  style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);

  //다른 폰트 생성

  HSSFFont font2 = workbook.createFont();

  font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);

  style2.setFont(font2);

  //그림판 관리기를 선언한다

  HSSFPatriarch patriarch = sheet.createDrawingPatriarch();

  HSSFComment comment = patriarch.createComment(new HSSFClientAnchor(0, 0, 0, 0, (short) 4, 2, (short) 6, 5));//주석 위치 크기

  comment.setString(new HSSFRichTextString("셀 주석 달기"));

  comment.setAuthor("저자 달기 ");



  //셀 타이틀 생성하기

  HSSFRow row = sheet.createRow(0);

  for(short i = 0; i <headers.length; i++){

   HSSFCell cell = row.createCell(i);

   cell.setCellStyle(style);

   HSSFRichTextString text = new HSSFRichTextString(headers[i]);

   cell.setCellValue(text);

  }



  //데이터 생성

  Iterator<T> it = dataset.iterator();

  int index = 0;

   while (it.hasNext()){

    index++;

    row = sheet.createRow(index);

    T t = (T)it.next();

    Field[] fields = t.getClass().getDeclaredFields();

    for (short i = 0; i < fields.length; i++)

             {

                 HSSFCell cell = row.createCell(i);

                 cell.setCellStyle(style2);

                 Field field = fields[i];

                 String fieldName = field.getName();

                 String getMethodName = "get"

                         + fieldName.substring(0, 1).toUpperCase()

                         + fieldName.substring(1);

                 try

                 {

                     Class tCls = t.getClass();

                     Method getMethod = tCls.getMethod(getMethodName,

                             new Class[]

                             {});

                     Object value = getMethod.invoke(t, new Object[]

                     {});



                     String textValue = null;



                     if (value instanceof Boolean)

                     {

                         boolean bValue = (Boolean) value;

                         textValue = "남";

                         if (!bValue)

                         {

                             textValue = "녀";

                         }

                     }

                     else if (value instanceof Date)

                     {

                         Date date = (Date) value;

                         SimpleDateFormat sdf = new SimpleDateFormat(pattern);

                         textValue = sdf.format(date);

                     }

                     else if (value instanceof byte[])

                     {



                         row.setHeightInPoints(60);



                         sheet.setColumnWidth(i, (short) (35.7 * 80));

                         // sheet.autoSizeColumn(i);

                         byte[] bsValue = (byte[]) value;

                         HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0,

                                 1023, 255, (short) 6, index, (short) 6, index);

                         anchor.setAnchorType(2);

                         patriarch.createPicture(anchor, workbook.addPicture(

                                 bsValue, HSSFWorkbook.PICTURE_TYPE_JPEG));

                     }

                     else

                     {



                         textValue = value.toString();

                     }



                     if (textValue != null)

                     {

                         Pattern p = Pattern.compile("^//d+(//.//d+)?$");

                         Matcher matcher = p.matcher(textValue);

                         if (matcher.matches())

                         {



                             cell.setCellValue(Double.parseDouble(textValue));

                         }

                         else

                         {

                             HSSFRichTextString richString = new HSSFRichTextString(

                                     textValue);

                             HSSFFont font3 = workbook.createFont();

                             font3.setColor(HSSFColor.BLUE.index);

                             richString.applyFont(font3);

                             cell.setCellValue(richString);

                         }

                     }

                 }

                 catch (SecurityException e)

                 {

                     e.printStackTrace();

                 }

                 catch (NoSuchMethodException e)

                 {

                     e.printStackTrace();

                 }

                 catch (IllegalArgumentException e)

                 {

                     e.printStackTrace();

                 }

                 catch (IllegalAccessException e)

                 {

                     e.printStackTrace();

                 }

                 catch (InvocationTargetException e)

                 {

                     e.printStackTrace();

                 }

                 finally

                 {



                 }

             }

   }

   try

         {

             workbook.write(out);

         }

         catch (IOException e)

         {

             e.printStackTrace();

         }

}

}

文献 http://blog.csdn.net/evangel_z/article/details/7332535
超级详细    http://rensanning.iteye.com/blog/1538591

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航