创建和分析excel文件

jxl.jar：下载地址：http://download.csdn.net/detail/xuxu198899223/7717737

package excel;

public class BookVO {

    public String bookName;

    public String bookAuthor;

    public String bookPrice;

    public String bookConcern;

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public String getBookAuthor() {
        return bookAuthor;
    }

    public void setBookAuthor(String bookAuthor) {
        this.bookAuthor = bookAuthor;
    }

    public String getBookPrice() {
        return bookPrice;
    }

    public void setBookPrice(String bookPrice) {
        this.bookPrice = bookPrice;
    }

    public String getBookConcern() {
        return bookConcern;
    }

    public void setBookConcern(String bookConcern) {
        this.bookConcern = bookConcern;
    }

}

2、生成excel文件：

package excel;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

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

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 org.apache.poi.poifs.filesystem.POIFSFileSystem;

/**
 * 生成excel文件
 * @author lizhiyong
 * @version $Id: ExcelOpt.java, v 0.1
		2014年8月5日 上午11:43:27 Exp $
 */
public class ExcelOpt {
    /**
    * 生成一个Excel文件 jxl
    * @param fileName 要生成的Excel文件名称
    * @jxl.jar 版本号：2.6
    */
    public static void writeExcel(String fileName) {
        WritableWorkbook wwb = null;
        try {
            //首先要使用Workbook类的工厂方法创建一个可写入的工作薄(Workbook)对象
            wwb = Workbook.createWorkbook(new File(fileName));

        } catch (IOException e) {
            e.printStackTrace();
        }
        if (wwb != null) {
            //创建一个可写入的工作表
            //Workbook的createSheet方法有两个參数，第一个是工作表的名称，第二个是工作表在工作薄中的位置
            WritableSheet ws = wwb.createSheet("工作表名称", 0);

            //以下開始加入单元格
            for (int i = 0; i < 10; i++) {
                for (int j = 0; j < 5; j++) {
                    //这里须要注意的是，在Excel中，第一个參数表示列。第二个表示行
                    Label labelC = new Label(j, i, "这是第" + (i + 1) + "行，第" + (j + 1) + "列");
                    try {
                        //将生成的单元格加入到工作表中
                        ws.addCell(labelC);
                    } catch (RowsExceededException e) {
                        e.printStackTrace();
                    } catch (WriteException e) {
                        e.printStackTrace();
                    }

                }
            }

            try {
                //从内存中写入文件里
                wwb.write();
                //关闭资源，释放内存
                wwb.close();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (WriteException e) {
                e.printStackTrace();
            }
        }
    }

    /**
    * 生成一个Excel文件POI
    * @param inputFile 输入模板文件路径
    * @param outputFile 输入文件存放于server路径
    * @param dataList 待导出数据
    * @throws Exception
    * @roseuid:
    */

    @SuppressWarnings({ "rawtypes", "deprecation" })
    public static void exportExcelFile(String inputFile, String outputFile, List dataList)
                                                                                          throws Exception {
        //用模板文件构造poi
        POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(inputFile));
        //创建模板工作表
        HSSFWorkbook templatewb = new HSSFWorkbook(fs);
        //直接取模板第一个sheet对象
        HSSFSheet templateSheet = templatewb.getSheetAt(1);
        //得到模板的第一个sheet的第一行对象 为了得到模板样式
        HSSFRow templateRow = templateSheet.getRow(0);

        //HSSFSheet timplateSheet = templatewb.getSheetAt(1);
        //取得Excel文件的总列数
        int columns = templateSheet.getRow((short) 0).getPhysicalNumberOfCells();
        // Debug.println("columns is : " + columns); //=========================
        //创建样式数组
        HSSFCellStyle styleArray[] = new HSSFCellStyle[columns];

        //一次性创建全部列的样式放在数组里
        for (int s = 0; s < columns; s++) {
            //得到数组实例
            styleArray[s] = templatewb.createCellStyle();
        }
        //循环对每个单元格进行赋值
        //定位行
        for (int rowId = 1; rowId < dataList.size(); rowId++) {
            //依次取第rowId行数据 每个数据是valueList
            List valueList = (List) dataList.get(rowId - 1);
            //定位列
            for (int columnId = 0; columnId < columns; columnId++) {
                //依次取出相应与colunmId列的值
                //每个单元格的值
                String dataValue = (String) valueList.get(columnId);
                //取出colunmId列的的style
                //模板每一列的样式
                HSSFCellStyle style = styleArray[columnId];
                //取模板第colunmId列的单元格对象
                //模板单元格对象
                HSSFCell templateCell = templateRow.getCell((short) columnId);
                //创建一个新的rowId行 行对象
                //新建的行对象
                HSSFRow hssfRow = templateSheet.createRow(rowId);
                //创建新的rowId行 columnId列 单元格对象
                //新建的单元格对象
                HSSFCell cell = hssfRow.createCell((short) columnId);
                //假设相应的模板单元格 样式为非锁定
                if (templateCell.getCellStyle().getLocked() == false) {
                    //设置此列style为非锁定
                    style.setLocked(false);
                    //设置到新的单元格上
                    cell.setCellStyle(style);
                }
                //否则样式为锁定
                else {
                    //设置此列style为锁定
                    style.setLocked(true);
                    //设置到新单元格上
                    cell.setCellStyle(style);
                }
                //设置编码
                cell.setEncoding(HSSFCell.ENCODING_UTF_16);
                //Debug.println("dataValue : " + dataValue);
                //设置值 统一为String
                cell.setCellValue(dataValue);
            }
        }
        //设置输入流
        FileOutputStream fOut = new FileOutputStream(outputFile);
        //将模板的内容写到输出文件上
        templatewb.write(fOut);
        fOut.flush();

        //操作结束，关闭文件
        fOut.close();

    }

    /**
    * 生成数据为XLS格式
    * @param filePath 生成Excel文件Path
    * @param dataList 要导入的数据
    */
    @SuppressWarnings("rawtypes")
    public static void writeExcelBo(String filePath, List dataList) {
        WritableWorkbook wwb = null;
        try {
            wwb = Workbook.createWorkbook(new File(filePath));
            WritableSheet ws = wwb.createSheet("上市新书", 10);
            ws.addCell(new jxl.write.Label(0, 1, "书名"));
            ws.addCell(new jxl.write.Label(1, 1, "作者"));
            ws.addCell(new jxl.write.Label(2, 1, "定价"));
            ws.addCell(new jxl.write.Label(3, 1, "出版社"));
            int bookSize = dataList.size();
            BookVO book = new BookVO();
            for (int i = 0; i < bookSize; i++) {
                book = (BookVO) dataList.get(i);
                ws.addCell(new jxl.write.Label(0, i + 2, "" + book.getBookName()));
                ws.addCell(new jxl.write.Label(1, i + 2, book.getBookAuthor()));
                ws.addCell(new jxl.write.Label(2, i + 2, "" + book.getBookPrice()));
                ws.addCell(new jxl.write.Label(3, i + 2, book.getBookConcern()));

            }
            // jxl.write.WritableFont wfc=
            //new jxl.write.WritableFont(WritableFont.ARIAL,255,WritableFont.BOLD,false,UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.BLACK);
            //jxl.write.WritableCellFormat wcfFC= new jxl.write.WritableCellFormat(wfc);
            ws.addCell(new jxl.write.Label(0, 0, "2007年07月即将上市新书。"));
            wwb.write();
            // 关闭Excel工作薄对象
            wwb.close();
        } catch (IOException e) {
        } catch (RowsExceededException e) {

        } catch (WriteException e) {
        }
    }

    /**往Excel中插入图片
    * @param dataSheet 待插入的工作表
    * @param col 图片从该列開始
    * @param row 图片从该行開始
    * @param width 图片所占的列数
    * @param height 图片所占的行数
    * @param imgFile 要插入的图片文件
    */
    public static void insertImg(WritableSheet dataSheet, int col, int row, int width, int height,
                                 File imgFile) {
        WritableImage img = new WritableImage(col, row, width, height, imgFile);
        dataSheet.addImage(img);
    }

    /**
     * 往Excel中插入图片
     * @param file
     * @throws IOException
     * @throws WriteException
     */
    public static boolean insertImg(String filePath,String imgPath) throws IOException, WriteException {
        try {
            //创建一个工作薄
            WritableWorkbook workbook = Workbook.createWorkbook(new File(filePath));
            //待插入的工作表
            WritableSheet imgSheet = workbook.createSheet("Images", 0);
            //要插入的图片文件
            File imgFile = new File(imgPath);
            //图片插入到第二行第一个单元格，长宽各占六个单元格
            insertImg(imgSheet, 0, 1, 6, 6, imgFile);
            workbook.write();
            workbook.close();
            return true;
        } catch (IOException e) {
            throw e;
        } catch (WriteException e) {
            throw e;
        }

    }

    @SuppressWarnings({ "rawtypes", "unchecked" })
    public static void main(String[] args) throws WriteException, IOException {
        writeExcel("c:\\Test測试Excel.xls");
        System.out.println("OK");
        ArrayList list = new ArrayList();

        for (int i = 0; i < 10; i++) {
            BookVO book = new BookVO();
            book.setBookName("WebWork in action+" + i);
            book.setBookAuthor("李四+" + i);
            book.setBookPrice("39元+" + i);
            book.setBookConcern("飞思科技+" + i);
            list.add(book);
        }

        writeExcelBo("c:\\上市新书.xls", list);
        System.err.println("Book OK!!!");

        //System.out.println(insertImg("c:\\上市新书.xls","C:\\2.png"));
    }

}

3、解析excel文件：

package excel;

import java.io.File;
import java.io.IOException;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

/**
 * 解析excel文件
 * @author lizhiyong
 * @version $Id: ReadExcel.java, v 0.1
		2014年8月5日 上午11:43:44 Exp $
 */
public class ReadExcel {
    /**读取Excel文件的内容
    * @param file 待读取的文件
    * @return
    */
    public static String readExcel(File file) {
        StringBuffer sb = new StringBuffer();

        Workbook wb = null;
        try {
            //构造Workbook（工作薄）对象
            wb = Workbook.getWorkbook(file);
        } catch (BiffException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        if (wb == null)
            return null;

        //获得了Workbook对象之后，就能够通过它得到Sheet（工作表）对象了
        Sheet[] sheet = wb.getSheets();

        if (sheet != null && sheet.length > 0) {
            //对每一个工作表进行循环
            for (int i = 0; i < sheet.length; i++) {
                //得到当前工作表的行数
                int rowNum = sheet[i].getRows();
                for (int j = 0; j < rowNum; j++) {
                    //得到当前行的全部单元格
                    Cell[] cells = sheet[i].getRow(j);
                    if (cells != null && cells.length > 0) {
                        //对每一个单元格进行循环
                        for (int k = 0; k < cells.length; k++) {
                            //读取当前单元格的值
                            String cellValue = cells[k].getContents();
                            sb.append(cellValue + "\t");
                        }
                    }
                    sb.append("\r\n");
                }
                sb.append("\r\n");
            }
        }
        //最后关闭资源，释放内存
        wb.close();
        return sb.toString();
    }

    /**搜索某一个文件里是否包括某个keyword
    * @param file 待搜索的文件
    * @param keyWord 要搜索的keyword
    * @return
    */
    public static boolean searchKeyWord(File file, String keyWord) {
        boolean res = false;
        Workbook wb = null;
        try {
            //构造Workbook（工作薄）对象
            wb = Workbook.getWorkbook(file);
        } catch (BiffException e) {
            return res;
        } catch (IOException e) {
            return res;
        }
        if (wb == null) {
            return res;
        }
        //获得了Workbook对象之后，就能够通过它得到Sheet（工作表）对象了
        Sheet[] sheet = wb.getSheets();
        boolean breakSheet = false;
        if (sheet != null && sheet.length > 0) {
            //对每一个工作表进行循环
            for (int i = 0; i < sheet.length; i++) {
                if (breakSheet) {
                    break;
                }
                //得到当前工作表的行数
                int rowNum = sheet[i].getRows();
                boolean breakRow = false;
                for (int j = 0; j < rowNum; j++) {
                    if (breakRow) {
                        break;
                    }
                    //得到当前行的全部单元格
                    Cell[] cells = sheet[i].getRow(j);
                    if (cells != null && cells.length > 0) {
                        boolean breakCell = false;
                        //对每一个单元格进行循环
                        for (int k = 0; k < cells.length; k++) {
                            if (breakCell) {
                                break;
                            }
                            //读取当前单元格的值
                            String cellValue = cells[k].getContents();
                            if (cellValue == null) {
                                continue;
                            }
                            if (cellValue.contains(keyWord)) {
                                res = true;
                                breakCell = true;
                                breakRow = true;
                                breakSheet = true;
                            }
                        }
                    }
                }
            }
        }
        //最后关闭资源，释放内存
        wb.close();
        return res;
    }

    public static void main(String[] a) {
        String filePath = "c:\\上市新书.xls";
        File file = new File(filePath);
        System.out.println(readExcel(file));

        System.out.println(searchKeyWord(file,"出版社32"));
    }
}

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