package com.cfam.utils;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* <p>
* Title: ZipToBase64.java<／p>
* <p>
* Description: 压缩 转 base64 网络传输<／p>
*
* @author ken chen
* @date 2019年7月26日
* @param srcFiles 需要压缩的文件
* @return Base64 压缩文件后进行base64编码
* @version 1.0
*/
public class ZipToBase64 {
private static final int BUFFER_SIZE = 2 * 1024
;
private static final Logger log = LoggerFactory.getLogger(ZipToBase64.
class);
public static String toBase64Zip(List<File> srcFiles)
throws RuntimeException {
log.info("开始压缩文件 [{}]"
, srcFiles);
long start =
System.currentTimeMillis();
String base64toZip = ""
;
ZipOutputStream zos =
null;
ByteArrayOutputStream baos =
new ByteArrayOutputStream();
try {
zos =
new ZipOutputStream(baos);
for (File srcFile : srcFiles) {
byte[] buf =
new byte[BUFFER_SIZE];
log.info("压缩的文件名称 [{}] ", srcFile.getName() + "压缩的文件大小 [{}] "
, srcFile.length());
zos.putNextEntry(new ZipEntry(srcFile.getName()));
int len;
FileInputStream in =
new FileInputStream(srcFile);
while ((len = in.read(buf)) != -1
) {
zos.write(buf, 0
, len);
}
zos.closeEntry();
in.close();
}
long end =
System.currentTimeMillis();
log.info("压缩完成，耗时： [{}] ms", (end -
start));
} catch (Exception e) {
throw new RuntimeException("zip error from ZipToBase64"
, e);
} finally {
if (zos !=
null) {
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
byte[] refereeFileBase64Bytes =
Base64.getEncoder().encode(baos.toByteArray());
try {
base64toZip =
new String(refereeFileBase64Bytes, "UTF-8"
);
} catch (Exception e) {
throw new RuntimeException("压缩流出现异常"
, e);
}
return base64toZip;
}
/**
* <p>
* Title: ZipToBase64.java<／p>
* <p>
* Description: Base64 解密 zip 解压缩 <／p>
*
* @author ken chen
* @date 2019年7月26日
* @param path 解压文件夹路径 文件夹父文件可更改
* @param base64 base64加密字符
* @return Base64 压缩文件后进行base64编码
* @version 1.0
*/
public static void Base64ToFile(String base64, String path)
throws RuntimeException {
log.info("解压文件地址" +
path);
try {
byte[] byteBase64 =
Base64.getDecoder().decode(base64);
ByteArrayInputStream byteArray =
new ByteArrayInputStream(byteBase64);
ZipInputStream zipInput =
new ZipInputStream(byteArray);
ZipEntry entry =
zipInput.getNextEntry();
File fout =
null;
File file =
new File(path);
String parent =
file.getParent();
while (entry !=
null && !
entry.isDirectory()) {
log.info("文件名称: [{}]"
, entry.getName());
fout =
new File(parent, entry.getName());
if (!
fout.exists()) {
(new File(fout.getParent())).mkdirs();
}
BufferedOutputStream bos =
new BufferedOutputStream(
new FileOutputStream(fout));
int offo = -1
;
byte[] buffer =
new byte[BUFFER_SIZE];
while ((offo = zipInput.read(buffer)) != -1
) {
bos.write(buffer, 0
, offo);
}
bos.close();
// 获取 下一个文件
entry =
zipInput.getNextEntry();
}
zipInput.close();
byteArray.close();
} catch (Exception e) {
throw new RuntimeException("解压流出现异常"
, e);
}
}
public static void main(String[] args) {
// 文件压缩
List<File> fileList =
new ArrayList<File>
();
fileList.add(new File("C:\\Users\\cjy\\Desktop\\qqq\\担保合同附件.pdf"
));
fileList.add(new File("C:\\Users\\cjy\\Desktop\\qqq\\融资申请表.xls"
));
fileList.add(new File("C:\\Users\\cjy\\Desktop\\qqq\\其他附件.jpg"
));
String base64 =
ZipToBase64.toBase64Zip(fileList);
log.info("文件base 64 加密：" +
base64);
ZipToBase64.Base64ToFile(base64, "C:\\Users\\cjy\\Desktop\\qqq\\新建文件夹\\a"
);
}
}
转载于:https://www.cnblogs.com/qqqq122418812/p/11309104.html
相关资源：Base64转图片.zip
