JExcel入门学习总结
一、JExcel介绍
JExcel是Java对Excel进行操作的包,可以实现创建一个Excel并写入或读取Excel的数据等操作;JExcel的主要类为:(1)Workbook:工作簿(2)WritableWorkbook:可写工作簿(3)Sheet:表单;(4)WritableSheet:可写表单;(5)Label:单元格;
二、Java写入Excel
写入test.xls数据代码:
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[*]package com.xiazdong;
[*]
[*]import java.io.File;
[*]
[*]import jxl.Sheet;
[*]import jxl.Workbook;
[*]import jxl.write.Label;
[*]import jxl.write.WritableSheet;
[*]import jxl.write.WritableWorkbook;
[*]
[*]public class CreateTest {
[*]
[*] public static void main(String[] args) throws Exception{
[*] String str[][] = {{"xiazdong","12345"},{"xzdong","54321"}};
[*] File f = new File("test.xls");
[*] WritableWorkbook workbook = Workbook.createWorkbook(f);
[*] WritableSheet sheet = workbook.createSheet("sheet1", 0);
[*] Label lab = null;
[*] for(int i=0;i<str.length;i++){
[*] for(int j=0;j<str.length;j++){
[*] lab = new Label(j,i,str); //Label(col,row,str);
[*] sheet.addCell(lab);
[*] }
[*] }
[*] workbook.write();
[*] workbook.close();
[*] }
[*]
[*]}
注意:Label中构造函数的参数,第一个参数是column,第二个参数是row,因此如果要插入第一行第二列,则(1,0);总结:WritableWorkbook和WritableSheet都用于写入Excel文件;读取通过Workbook和Sheet执行;
三、读取Excel数据
读取test.xls中数据并显示代码:
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[*]package com.xiazdong;
[*]
[*]import java.io.File;
[*]
[*]import jxl.Sheet;
[*]import jxl.Workbook;
[*]
[*]public class CreateTest {
[*]
[*] public static void main(String[] args) throws Exception{
[*] Workbook workbook = Workbook.getWorkbook(new File("test.xls"));
[*] Sheet sheet[] = workbook.getSheets();
[*] String lab = null;
[*] for(int a=0;a<sheet.length;a++){
[*] for(int i=0;i<sheet.getRows();i++){
[*] for(int j=0;j<sheet.getColumns();j++){
[*] lab = sheet.getCell(j,i).getContents();
[*] System.out.print(lab+"、");
[*] }
[*] System.out.println();
[*] }
[*] }
[*]
[*] }
[*]
[*]}
通过JXL可以很方便地进行对于Excel文件的读取和写入;
顶。。。。。。。up 还是可以的
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