本文实例为大家分享了java动态导出excel压缩成zip下载的具体代码，供大家参考，具体内容如下
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package pack.java.io.demo;
import java.io.bufferedoutputstream;
import java.io.file;
import java.io.fileinputstream;
import java.io.fileoutputstream;
import java.io.ioexception;
import java.text.simpledateformat;
import java.util.date;
import java.util.zip.zipentry;
import java.util.zip.zipoutputstream;
import jxl.workbook;
import jxl.format.alignment;
import jxl.format.border;
import jxl.format.borderlinestyle;
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;
/**
* zip压缩文件实例
* add by 周海涛
* @author administrator
*
*/
public class zipdemo {
/**
* @param args
* @throws ioexception
* @throws writeexception
* @throws rowsexceededexception
*/
public static void main(string[] args) throws rowsexceededexception, writeexception, ioexception {
string path = "c:/document/excel";
//创建文件夹;
createfile(path);
//创建excel文件;
createexcelfile(path);
//生成.zip文件;
craetezippath(path);
//删除目录下所有的文件;
file file = new file(path);
//删除文件;
deleteexcelpath(file);
//重新创建文件;
file.mkdirs();
}
/**
* 创建文件夹;
* @param path
* @return
*/
public static string createfile(string path){
file file = new file(path);
//判断文件是否存在;
if(!file.exists()){
//创建文件;
boolean bol = file.mkdirs();
if(bol){
system.out.println(path+" 路径创建成功!");
}else{
system.out.println(path+" 路径创建失败!");
}
}else{
system.out.println(path+" 文件已经存在!");
}
return path;
}
/**
* 在指定目录下创建excel文件;
* @param path
* @throws ioexception
* @throws writeexception
* @throws rowsexceededexception
*/
public static void createexcelfile(string path) throws ioexception, rowsexceededexception, writeexception{
for(int i =0;i<3;i++){
//创建excel;
writableworkbook workbook = workbook.createworkbook(new file(path+"/" + new simpledateformat("yyyymmddhhmmsss").format(new date() )+"_"+(i+1)+".xls"));
//创建第一个sheet文件;
writablesheet sheet = workbook.createsheet("导出excel文件", 0);
//设置默认宽度;
sheet.getsettings().setdefaultcolumnwidth(30);
//设置字体;
writablefont font1 = new writablefont(writablefont.arial,14,writablefont.bold,false,underlinestyle.no_underline,colour.red);
writablecellformat cellformat1 = new writablecellformat(font1);
//设置背景颜色;
cellformat1.setbackground(colour.blue_grey);
//设置边框;
cellformat1.setborder(border.all, borderlinestyle.dash_dot);
//设置自动换行;
cellformat1.setwrap(true);
//设置文字居中对齐方式;
cellformat1.setalignment(alignment.centre);
//设置垂直居中;
cellformat1.setverticalalignment(verticalalignment.centre);
//创建单元格
label label1 = new label(0, 0, "第一行第一个单元格(测试是否自动换行!)",cellformat1);
label label2 = new label(1, 0, "第一行第二个单元格",cellformat1);
label label3 = new label(2, 0, "第一行第三个单元格",cellformat1);
label label4 = new label(3, 0, "第一行第四个单元格",cellformat1);
//添加到行中;
sheet.addcell(label1);
sheet.addcell(label2);
sheet.addcell(label3);
sheet.addcell(label4);
//给第二行设置背景、字体颜色、对齐方式等等;
writablefont font2 = new writablefont(writablefont.arial,14,writablefont.no_bold,false,underlinestyle.no_underline,colour.blue2);
writablecellformat cellformat2 = new writablecellformat(font2);
cellformat2.setalignment(alignment.centre);
cellformat2.setbackground(colour.pink);
cellformat2.setborder(border.all, borderlinestyle.thin);
cellformat2.setwrap(true);
//创建单元格;
label label11= new label(0, 1, "第二行第一个单元格(测试是否自动换行!)",cellformat2);
label label22 = new label(1, 1, "第二行第二个单元格",cellformat2);
label label33 = new label(2, 1, "第二行第三个单元格",cellformat2);
label label44 = new label(3, 1, "第二行第四个单元格",cellformat2);
sheet.addcell(label11);
sheet.addcell(label22);
sheet.addcell(label33);
sheet.addcell(label44);
//写入excel表格中;
workbook.write();
//关闭流;
workbook.close();
}
}
/**
* 生成.zip文件;
* @param path
* @throws ioexception
*/
public static void craetezippath(string path) throws ioexception{
zipoutputstream zipoutputstream = null;
file file = new file(path+new simpledateformat("yyyymmddhhmmss").format(new date())+".zip");
zipoutputstream = new zipoutputstream(new bufferedoutputstream(new fileoutputstream(file)));
file[] files = new file(path).listfiles();
fileinputstream fileinputstream = null;
byte[] buf = new byte[1024];
int len = 0;
if(files!=null && files.length > 0){
for(file excelfile:files){
string filename = excelfile.getname();
fileinputstream = new fileinputstream(excelfile);
//放入压缩zip包中;
zipoutputstream.putnextentry(new zipentry(path + "/"+filename));
//读取文件;
while((len=fileinputstream.read(buf)) >0){
zipoutputstream.write(buf, 0, len);
}
//关闭;
zipoutputstream.closeentry();
if(fileinputstream != null){
fileinputstream.close();
}
}
}
if(zipoutputstream !=null){
zipoutputstream.close();
}
}
/**
* 删除目录下所有的文件;
* @param path
*/
public static boolean deleteexcelpath(file file){
string[] files = null;
if(file != null){
files = file.list();
}
if(file.isdirectory()){
for(int i =0;i<files.length;i++){
boolean bol = deleteexcelpath(new file(file,files[i]));
if(bol){
system.out.println("删除成功!");
}else{
system.out.println("删除失败!");
}
}
}
return file.delete();
}
}
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/hongwangzhang/article/details/50764534