package com.zhaochao.utils;
import java.util.List;
/**
*
* excel的行对象
*
* @author 赵超
*
*/
public class ExcelRow {
private List<String> colData; //当前行的所有列数据
public Integer getCols() {
return colData.size();
}
public List<String> getColData() {
return colData;
}
public void setColData(List<String> colData2) {
this.colData = colData2;
}
}
package com.zhaochao.utils;
import java.util.List;
/**
*
* Excel页对象
*
* @author 赵超
*
*/
public class ExcelPage {
private List<ExcelRow> rowData; //当页excel的所有行数据
public Integer getRows() {
return rowData.size();
}
public List<ExcelRow> getRowData() {
return rowData;
}
public void setRowData(List<ExcelRow> rowData) {
this.rowData = rowData;
}
}
package com.zhaochao.utils;
import java.util.List;
/**
*
* Excel模型类
*
*
* @author 赵超
*
*/
public class ExcelModel {
private List<ExcelPage> pageData; //Excel每页的数据
public Integer getPages() {
return pageData.size();
}
public List<ExcelPage> getPageData() {
return pageData;
}
public void setPageData(List<ExcelPage> pageData) {
this.pageData = pageData;
}
}
package com.zhaochao.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
/**
*
* @author 操作excel工具类
*
*/
public class ExcelUtil {
public static void main(String [] args){
//testWriteExcel();
testReadExcel();
}
public static void testReadExcel(){
//String urlStr="http://baaifile.b0.upaiyun.com/uploadfile/2014/10/25/201410251038347176.xls";
//String urlStr="C:\\Users\\Administrator\\Desktop\\privateCoupon.xls";
String urlStr="c://user.xls";
ExcelModel model= ExcelUtil.ReadExcel(urlStr);
int pageSize=0;
for(ExcelPage page: model.getPageData()){
for(ExcelRow row:page.getRowData()){
for(String col:row.getColData()){
System.out.print(col+" ");
}
System.out.println();
}
System.out.println("======总共"+model.getPages()+"页=====第"+(++pageSize)+"页====================");
}
}
public static void testWriteExcel(){
String fileName="c://user.xls";
//设置两列数据
List<String> cols=new ArrayList<String>();
cols.add("admin");
cols.add("123");
//设置行数据
ExcelRow row=new ExcelRow();
row.setColData(cols);
List<ExcelRow> rows=new ArrayList<ExcelRow>();
rows.add(row);
rows.add(row);
//设置页数据
ExcelPage page=new ExcelPage();
page.setRowData(rows);
List<ExcelPage> pages=new ArrayList<ExcelPage>();
pages.add(page);
pages.add(page);
//设置excleModel
ExcelModel model=new ExcelModel();
model.setPageData(pages);
writeExcel(fileName,model);
}
/**
* 在线解析Excel
*
* @param urlStr 可以是http://开头的url,也可以是文件路径
*
* @return 返回ExcelMode
*/
private static ExcelModel ReadExcel(String urlStr) {
ExcelModel excle= new ExcelModel();
try {
InputStream is=null;
if(urlStr.startsWith("http://")){
URL url=new URL(urlStr);
HttpURLConnection httpUrl=(HttpURLConnection) url.openConnection();
httpUrl.connect();
is = httpUrl.getInputStream();
}else{
File f=new File(urlStr);
if(f.exists()){
is= new FileInputStream(f) ;
}else{
throw new Exception("文件不存");
}
}
Workbook wb = Workbook.getWorkbook(is);
jxl.Sheet [] sheet =wb.getSheets();
List<ExcelPage> pageDate=new ArrayList<ExcelPage>();
for(int s=0;s<sheet.length;s++){
ExcelPage page=new ExcelPage();
List<ExcelRow> rows=new ArrayList<ExcelRow>();
for(int i=0;i<sheet[s].getRows();i++){
ExcelRow row=new ExcelRow();
List<String> colData=new ArrayList<String>();
for(int j=0;j<sheet[s].getColumns();j++){
colData.add(sheet[s].getCell(j, i).getContents());
}
row.setColData(colData);
rows.add(row);
}
page.setRowData(rows);
pageDate.add(page);
}
excle.setPageData(pageDate);
wb.close();
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return excle;
}
/**
*
* @param fileName 要写入文件的路径
* @param excel 要写入文件的数据
*/
private static void writeExcel(String fileName,ExcelModel excel) {
try {
WritableWorkbook book = Workbook.createWorkbook(new File(fileName));
for(int page=0;page<excel.getPages();page++){
WritableSheet sheet = book.createSheet("第"+page+"页", 0);
// 在label对象的构造方法中指名单元格位置是第一列，第一行(0,0)
// 以及单元格内容为test
for(int row=0;row<excel.getPageData().get(page).getRows();row++){
for(int col=0;col<excel.getPageData().get(page).getRowData().get(row).getCols();col++){
Label label = new Label(col,row ,excel.getPageData().get(page).getRowData().get(row).getColData().get(col));
// 将定义好的单元格添加到工作表中
sheet.addCell(label);
}
}
}
// 写入数据并关闭文件
book.write();
book.close();
System.out.println("生成excel文件成功");
} catch (Exception e) {
e.printStackTrace();
}
}
}
原文地址：http://blog.csdn.net/whzhaochao/article/details/40451141
