Java 实现文件批量文件打包下载

在Javaweb项目中经常会有根据复选框勾选后，同时下载多个文件的功能，以下代码实现了批量文件打包下载

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import org.apache.tools.zip.ZipEntry;

import org.apache.tools.zip.ZipOutputStream;

public class Test {

public static void main(String[] args) {

//需要压缩的文件--包括文件地址和文件名

String []path ={"C:\\Documents and Settings\\db2admin\\桌面\\EngineerNetworkQuery.xls",

"C:\\Documents and Settings\\db2admin\\桌面\\NetworkInfQuery.xls"};

// 要生成的压缩文件地址和文件名称

String desPath = "C:\\Documents and Settings\\db2admin\\桌面\\DownLoad.zip";

File zipFile = new File(desPath);

ZipOutputStream zipStream = null;

FileInputStream zipSource = null;

BufferedInputStream bufferStream = null;

try {

//构造最终压缩包的输出流

zipStream = new ZipOutputStream(new FileOutputStream(zipFile));

for(int i =0;i<path.length;i++){

File file = new File(path[i]);

//将需要压缩的文件格式化为输入流

zipSource = new FileInputStream(file);

//压缩条目不是具体独立的文件，而是压缩包文件列表中的列表项，称为条目，就像索引一样

ZipEntry zipEntry = new ZipEntry(file.getName());

//定位该压缩条目位置，开始写入文件到压缩包中

zipStream.putNextEntry(zipEntry);

//输入缓冲流

bufferStream = new BufferedInputStream(zipSource, 1024 * 10);

int read = 0;

//创建读写缓冲区

byte[] buf = new byte[1024 * 10];

while((read = bufferStream.read(buf, 0, 1024 * 10)) != -1)

{

zipStream.write(buf, 0, read);

}

}

} catch (Exception e) {

e.printStackTrace();

} finally {

//关闭流

try {

if(null != bufferStream) bufferStream.close();

if(null != zipStream) zipStream.close();

if(null != zipSource) zipSource.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}