java 把多个文件根据url压缩到一个压缩包中并相应浏览器
String time = GetDate.date2Str(new Date(), GetDate.yyyymmddhhmmss);
String zipName = "浦发律师函" + time +".zip" ; // 下载压缩包的名字
response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(zipName, "UTF-8")); // 防止中文乱码
response.setContentType("application/octet-stream;charset=UTF-8");
response.addHeader("Pargam", "no-cache");
response.addHeader("Cache-Control", "no-cache");
ZipOutputStream out = new ZipOutputStream(response.getOutputStream()); // 浏览器下载
// 这里需要根据自己的业务来书写相关的业务代码 我这里为了举例子 直接写死了
List<String> list = new ArrayList<>();
list.add(c:aaaaa/aaaa/aa.txt);
list.add(c:aaaaa/aaaa/bbb.xlsl);
list.add(d:aaaaa/dssddsd.word);
list.add(d:aaaaa/dpdpdpdp.pdf);
list.add("D:\\java\\新建 PPT 演示文稿 - 副本 (2).ppt");
list.add(d:aaaaa/java.pdf);
for (String s : list) {
ZipUtils.doCompress(s, out);
response.flushBuffer();
}
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipUtils {
private ZipUtils(){
}
/**
* 文件压缩
* @param srcFile 目录或者单个文件
* @param zipFile 压缩后的ZIP文件
*/
public static void doCompress(String srcFile, String zipFile) throws IOException {
doCompress(new File(srcFile), new File(zipFile));
}
/**
* 文件压缩
* @param srcFile 目录或者单个文件
* @param zipFile 压缩后的ZIP文件
*/
public static void doCompress(File srcFile, File zipFile) throws IOException {
ZipOutputStream out = null;
try {
out = new ZipOutputStream(new FileOutputStream(zipFile));
doCompress(srcFile, out);
} catch (Exception e) {
throw e;
} finally {
out.close();
}
}
public static void doCompress(String filelName, ZipOutputStream out) throws IOException{
doCompress(new File(filelName), out);
}
public static void doCompress(File file, ZipOutputStream out) throws IOException{
doCompress(file, out, "");
}
public static void doCompress(File inFile, ZipOutputStream out, String dir) throws IOException {
if ( inFile.isDirectory() ) {
File[] files = inFile.listFiles();
if (files!=null && files.length>0) {
for (File file : files) {
String name = inFile.getName();
if (!"".equals(dir)) {
name = dir + "/" + name;
}
ZipUtils.doCompress(file, out, name);
}
}
} else {
ZipUtils.doZip(inFile, out, dir);
}
}
public static void doZip(File inFile, ZipOutputStream out, String dir) throws IOException {
String entryName = null;
if (!"".equals(dir)) {
entryName = dir + "/" + inFile.getName();
} else {
entryName = inFile.getName();
}
ZipEntry entry = new ZipEntry(entryName);
out.putNextEntry(entry);
int len = 0 ;
byte[] buffer = new byte[1024];
FileInputStream fis = new FileInputStream(inFile);
while ((len = fis.read(buffer)) > 0) {
out.write(buffer, 0, len);
out.flush();
}
out.closeEntry();
fis.close();
}
public static void main(String[] args) throws IOException {
doCompress("D:/java/", "D:/java.rar");
List<String> list = new ArrayList<>();
list.add("D:\\java\\新建 PPT 演示文稿 - 副本 (2).ppt");
list.add("D:\\java\\新建 PPT 演示文稿 - 副本 (3).ppt");
list.add("D:\\java\\新建 PPT 演示文稿 - 副本 (4).ppt");
list.add("D:\\java\\新建 PPT 演示文稿 - 副本 (5).ppt");
list.add("D:\\java\\新建 PPT 演示文稿 - 副本 (6).ppt");
}
posted on 2021-01-11 14:41 UnmatchedSelf 阅读(641) 评论(0) 编辑 收藏 举报