Java 使用jxl.jar 导入导出Excel数据

开发程序时需要用到 jxl.jar 下载地址：http://nchc.dl.sourceforge.net/sourceforge/jexcelapi/jexcelapi_2_6_6.zip

下载后将zip包解压，复制jxl.jar到你的project的lib包中。

 本程序由两个类组成，可直接复制后运行

Excel.java

package  test;

import  java.io.File;
import  java.io.FileOutputStream;
import  java.io.IOException;
import  java.util.Vector;

import  jxl.Cell;
import  jxl.Sheet;
import  jxl.Workbook;
import  jxl.format.Alignment;
import  jxl.format.Colour;
import  jxl.format.UnderlineStyle;
import  jxl.format.VerticalAlignment;
import  jxl.write.Label;
import  jxl.write.WritableCellFormat;
import  jxl.write.WritableFont;
import  jxl.write.WritableSheet;
import  jxl.write.WritableWorkbook;
import  jxl.write.WriteException;
import  jxl.write.biff.RowsExceededException;

public   class  Excel  ... {

    /** *//**
     * 导出数据为XLS格式
     * @param fileName        文件的名称，可以设为绝对路径，也可以设为相对路径
     * @param content        数据的内容
     */
    public static void exportExcel(String fileName, Vector<Person> content) ...{
        WritableWorkbook wwb;
        FileOutputStream fos;
        try ...{
            fos = new FileOutputStream(fileName);
            wwb = Workbook.createWorkbook(fos);
            WritableSheet ws = wwb.createSheet("三国志武将列表", 10);        // 创建一个工作表

            //    设置单元格的文字格式
            WritableFont wf = new WritableFont(WritableFont.ARIAL,12,WritableFont.NO_BOLD,false,
                    UnderlineStyle.NO_UNDERLINE,Colour.BLUE);
            WritableCellFormat wcf = new WritableCellFormat(wf);
            wcf.setVerticalAlignment(VerticalAlignment.CENTRE); 
            wcf.setAlignment(Alignment.CENTRE); 
            ws.setRowView(1, 500);

            //    填充数据的内容
            Person[] p = new Person[content.size()];
            for (int i = 0; i < content.size(); i++)...{
                p[i] = (Person)content.get(i);
                ws.addCell(new Label(1, i + 1, p[i].getName(), wcf));
                ws.addCell(new Label(2, i + 1, p[i].getNickname(), wcf));
                ws.addCell(new Label(3, i + 1, p[i].getPower(), wcf));
                ws.addCell(new Label(4, i + 1, p[i].getWit(), wcf));
                ws.addCell(new Label(5, i + 1, p[i].getPolity(), wcf));
                ws.addCell(new Label(6, i + 1, p[i].getCharm(), wcf));
                ws.addCell(new Label(7, i + 1, p[i].getStory(), wcf));
                if(i == 0)
                    wcf = new WritableCellFormat();
            }

            wwb.write();
            wwb.close();
        } catch (IOException e)...{
        } catch (RowsExceededException e)...{
        } catch (WriteException e)...{}
    }

    /** *//**
     * 从Excel文件里读取数据保存到Vector里
     * @param fileName        Excel文件的名称
     * @return                Vector对象,里面包含从Excel文件里获取到的数据
     */
    public static Vector<Person> importExcel(String fileName)...{
        Vector<Person> v = new Vector<Person>();
        try ...{
            Workbook book = Workbook.getWorkbook(new File(fileName));
            Sheet sheet = book.getSheet(0);        // 获得第一个工作表对象 
            int rows = sheet.getRows();
            
            for(int i = 0; i < rows; i++) ...{
                Cell [] cell = sheet.getRow(i);
                if(cell.length == 0)
                    continue;
                
                Person p = new Person();
                p.setName(sheet.getCell(1, i).getContents());
                p.setNickname(sheet.getCell(2, i).getContents());
                p.setPower(sheet.getCell(3, i).getContents());
                p.setWit(sheet.getCell(4, i).getContents());
                p.setPolity(sheet.getCell(5, i).getContents());
                p.setCharm(sheet.getCell(6, i).getContents());
                p.setStory(sheet.getCell(7, i).getContents());
                v.add(p);
            }

            book.close();
        }catch(Exception e) ...{} 
        return v;
    }

    public static void main(String [] args)...{
        String fileName = "test.xls";
        String fileNameNew = "testNew.xls";
        
        Person p0 = new Person("姓名","字","武力","智力","政治","魅力","英雄事迹");
        Person p1 = new Person("赵云","子龙","98","84","83","87","单骑救主!!!");
        Person p2 = new Person("马超","孟起","98","62","40","88","杀得曹操割须弃袍!!!");
        Person p3 = new Person("诸葛亮","孔明","55","100","92","93","死后木偶退兵，锦囊杀魏延!!!");

        Vector<Person> v = new Vector<Person>();
        v.add(p0);
        v.add(p1);
        v.add(p2);
        v.add(p3);
        
        exportExcel(fileName, v);
        System.out.println("成功导出数据到Excel文件(" + fileName + ")了!!!");
        
        Vector<Person> vector = importExcel(fileName);
        System.out.println("成功从Excel文件(" + fileName + ")导入数据!!!");
        
        exportExcel(fileNameNew, vector);
        System.out.println("成功将" + fileName + "里的数据手复制到" + fileNameNew + "中!!!");
    }
}

 

Person.java

package  test;

public   class  Person  ... {
    private String name;
    private String nickname;
    private String power;
    private String wit;
    private String polity;
    private String charm;
    private String story;
    
    public Person()...{
        
    }
    
    public Person(String name, String nickname, String power, String wit,
            String polity, String charm, String story) ...{
        super();
        this.name = name;
        this.nickname = nickname;
        this.power = power;
        this.wit = wit;
        this.polity = polity;
        this.charm = charm;
        this.story = story;
    }
    
    public String getName() ...{
        return name;
    }
    public void setName(String name) ...{
        this.name = name;
    }
    public String getNickname() ...{
        return nickname;
    }
    public void setNickname(String nickname) ...{
        this.nickname = nickname;
    }
    public String getPower() ...{
        return power;
    }
    public void setPower(String power) ...{
        this.power = power;
    }
    public String getWit() ...{
        return wit;
    }
    public void setWit(String wit) ...{
        this.wit = wit;
    }
    public String getPolity() ...{
        return polity;
    }
    public void setPolity(String polity) ...{
        this.polity = polity;
    }
    public String getCharm() ...{
        return charm;
    }
    public void setCharm(String charm) ...{
        this.charm = charm;
    }
    public String getStory() ...{
        return story;
    }
    public void setStory(String story) ...{
        this.story = story;
    }
    
}

 

运行程序后，你的project里将会自动生成一个test.xls文件，双击打开就可以看到导出的数据了。

 

本文发表后，许多网友来信说无法编译运行。鉴于此，特地对本文作以下补充。

其实本文的代码是在IDE中编译运行的，如果是用命令行窗口的模式编译运行的话，需要注意以下两点：

1、去除两个类中的第一行代码，即：package test;

2、配置好环境变量，特别是记得在classpath中设置jxl.jar的所在路径。