java读写excel(jxl.jar)

有时候我们会需要做excel的报表,下面这个例子详细的给出了读写及定义样式的方法。

package com.test;

import java.io.File;

import java.io.IOException;

import jxl.Cell;

import jxl.Sheet;

import jxl.Workbook;

import jxl.format.Border;

import jxl.format.BorderLineStyle;

import jxl.format.Colour;

import jxl.read.biff.BiffException;

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;

/**

*

* CopyRight (C) www.blogjava.net/ilovezmh All rights reserved.<p>

*

* WuHan Inpoint Information Technology Development,Inc.<p>

*

* Author zhu<p>

*

* @version 1.0 2007-2-6

*

* <p>Base on : JDK1.5<p>

*

*/

public class JexcelSample {

/**

* 写excel文件

*

*/

public void writeExc(File filename){

WritableWorkbook wwb = null;

try

{

wwb = Workbook.createWorkbook(filename);

}

catch (Exception e){

e.printStackTrace();

}

//创建Excel工作表

WritableSheet ws = wwb.createSheet("通讯录", 0);//创建sheet

try {

ws.mergeCells(0, 0, 2, 1);//合并单元格(左列，左行，右列，右行)从第1行第1列到第2行第3列

Label header = new Label(0, 0, "通讯录(191026班)", getHeader());

ws.addCell(header);//写入头

Label l = new Label(0, 2, "姓名", getTitle());//第3行

ws.addCell(l);

l = new Label(1, 2, "电话", getTitle());

ws.addCell(l);

l = new Label(2, 2, "地址", getTitle());

ws.addCell(l);

l = new Label(0, 3, "小祝", getNormolCell());//第4行

ws.addCell(l);

l = new Label(1, 3, "1314***0974", getNormolCell());

ws.addCell(l);

l = new Label(2, 3, "武汉武昌", getNormolCell());

ws.addCell(l);

l = new Label(0, 4, "小施", getNormolCell());//第5行

ws.addCell(l);

l = new Label(1, 4, "1347***5057", getNormolCell());

ws.addCell(l);

l = new Label(2, 4, "武汉武昌", getNormolCell());

ws.addCell(l);

ws.setColumnView(0,20);//设置列宽

ws.setColumnView(1,20);

ws.setColumnView(2,40);

ws.setRowView(0,400);//设置行高

ws.setRowView(1,400);

ws.setRowView(2,500);

ws.setRowView(3,500);

ws.setRowView(4,500);

} catch (RowsExceededException e1) {

e1.printStackTrace();

} catch (WriteException e1) {

e1.printStackTrace();

}

//输出流

try {

wwb.write();

} catch (IOException ex) {

// TODO 自动生成 catch 块

ex.printStackTrace();

}

//关闭流

try {

wwb.close();

} catch (WriteException ex) {

// TODO 自动生成 catch 块

ex.printStackTrace();

} catch (IOException ex) {

// TODO 自动生成 catch 块

ex.printStackTrace();

}

//outStream.close();

System.out.println("写入成功！/n");

}

public void readExc(File filename) throws BiffException, IOException{

Workbook wb = Workbook.getWorkbook(filename);

Sheet s = wb.getSheet(0);//第1个sheet

Cell c = null;

int row = s.getRows();//总行数

int col = s.getColumns();//总列数

for(int i=0;i<row;i++){

for(int j=0;j<col;j++){

c = s.getCell(j,i);

System.out.print(c.getContents()+" ");

}

System.out.println();

}

}

/**

* 设置头的样式

* @return

*/

public static WritableCellFormat getHeader(){

WritableFont font = new WritableFont(WritableFont.TIMES, 24 ,WritableFont.BOLD);//定义字体

try {

font.setColour(Colour.BLUE);//蓝色字体

} catch (WriteException e1) {

// TODO 自动生成 catch 块

e1.printStackTrace();

}

WritableCellFormat format = new WritableCellFormat(font);

try {

format.setAlignment(jxl.format.Alignment.CENTRE);//左右居中

format.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);//上下居中

format.setBorder(Border.ALL,BorderLineStyle.THIN,Colour.BLACK);//黑色边框

format.setBackground(Colour.YELLOW);//黄色背景

} catch (WriteException e) {

// TODO 自动生成 catch 块

e.printStackTrace();

}

return format;

}

/**

* 设置标题样式

* @return

*/

public static WritableCellFormat getTitle(){

WritableFont font = new WritableFont(WritableFont.TIMES, 14);

try {

font.setColour(Colour.BLUE);//蓝色字体

} catch (WriteException e1) {

// TODO 自动生成 catch 块

e1.printStackTrace();

}

WritableCellFormat format = new WritableCellFormat(font);

try {

format.setAlignment(jxl.format.Alignment.CENTRE);

format.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);

format.setBorder(Border.ALL,BorderLineStyle.THIN,Colour.BLACK);

} catch (WriteException e) {

// TODO 自动生成 catch 块

e.printStackTrace();

}

return format;

}

/**

* 设置其他单元格样式

* @return

*/

public static WritableCellFormat getNormolCell(){//12号字体,上下左右居中,带黑色边框

WritableFont font = new WritableFont(WritableFont.TIMES, 12);

WritableCellFormat format = new WritableCellFormat(font);

try {

format.setAlignment(jxl.format.Alignment.CENTRE);

format.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);

format.setBorder(Border.ALL,BorderLineStyle.THIN,Colour.BLACK);

} catch (WriteException e) {

// TODO 自动生成 catch 块

e.printStackTrace();

}

return format;

}

public static void main(String[] args) throws IOException, BiffException{

JexcelSample js = new JexcelSample();

File f = new File("D://address.xls");

f.createNewFile();

js.writeExc(f);

js.readExc(f);

}

}