将图片打成压缩包，并转换为byte[]

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我是靠谱客的博主陶醉八宝粥，最近开发中收集的这篇文章主要介绍将图片打成压缩包，并转换为byte[]，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

package com.util;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

public class Tupload {
public static void main(String[] args) {
Tupload upload = new Tupload();
String pathName = "E:/exportFile/missyou/";//文件存放路径
String zipName = "xiaoshasha_1";//压缩包名称
String encoding = "UTF-8";//编码格式,处理中文文件名乱码问题
String filePath = pathName + zipName + "/";
List<BufferedInputStream> listBis=upload.getInputStream();//根据数据库存放图片的路径,生成inpuStream流
upload.outputStream(listBis, filePath);//根据生成的inputstream流,输出到硬盘的某个文件夹下
upload.fileToZip(pathName, zipName, encoding);//将多个文件压缩为ZIP
byte[] byteZIP = upload.getbyte(pathName + zipName + ".zip");//获取ZIP的流
upload.outbyte(byteZIP);//测试byteZIP的流是否正确
//暂时注释
// upload.deleteFileDirectory(filePath);//删除自动生成的文件。
//upload.deleteFileDirectory(pathName + zipName + ".zip"); //删除压缩包
//
// 程序大概思路:
// 1.通过数据库存放人员的信息得到源图片的存放路径及图片名,
// 2.通过源图片的路径及图片名生成一个临时文件夹(放入用户多张照片)
// ,文件夹的名称要确保不能重复(可以考虑有规律的生成)。
// 3.将临时文件夹打成压缩包.
// 4.将压缩包转成第三方系统需要的byte[]字节.
// 5.将临时文件删除(源文件夹及zip压缩包)
// 6.不建议你将文件夹 img 建到web-inf下,会威胁到整个项目的源代码,避免造成不必要的风险.。
// 建议模仿源图片的路径放到服务器的某个路径下

}

public void deleteFileDirectory(String path){
File dir=new File(path);
if(dir.isDirectory()){
File[] children=dir.listFiles();
for (int i = 0; i < children.length; i++) {
deleteFileDirectory(children[i].getPath());
}
}
dir.delete();
}
public byte[] getbyte(String zipFilePath) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
BufferedInputStream bis = null;
FileInputStream in = null;
try {
File zipfile = new File(zipFilePath);
in = new FileInputStream(zipfile);
bis = new BufferedInputStream(in);
byte[] buffer = new byte[1024];
int len = 0;
while ((len = bis.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
bis.close();
in.close();
return out.toByteArray();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (bis != null)
bis.close();
if (in != null)
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;

}

public boolean fileToZip(String pathName, String zipName, String encoding) {
boolean result = true;
try {
File pathFileName = new File(pathName + "/" + zipName);
if (!pathFileName.exists()) {
pathFileName.mkdirs();
}
File zipFile = new File(pathName + "/" + zipName + ".zip");
if (zipFile.exists()) {
zipFile.delete();
}
FileOutputStream fos = new FileOutputStream(zipFile);
ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(
fos));
// 添加编码，如果不添加，当文件以中文命名的情况下，会出现乱码
// ZipOutputStream的包一定是apache的ant.jar包。JDK也提供了打压缩包，但是不能设置编码
zos.setEncoding(encoding);// gbk
FileInputStream fis = null;
BufferedInputStream bis = null;

File[] files = pathFileName.listFiles();
byte[] by;
if (files != null && files.length > 0) {
for (File f : files) {
zos.putNextEntry(new ZipEntry(f.getName()));
fis = new FileInputStream(f);
bis = new BufferedInputStream(fis, 1024);
by = new byte[1024];
int len;
while ((len = bis.read(by, 0, 1024)) != -1) {
zos.write(by, 0, len);
}
zos.flush();
bis.close();
fis.close();
}
zos.flush();
zos.close();
}

} catch (FileNotFoundException e) {
result = false;
} catch (IOException e) {
result = false;
}

return result;
}

public List<BufferedInputStream> getInputStream() {
File fileOne = new File("E:/exportFile/123.bmp");
File fileFour = new File("E:/exportFile/456.bmp");
List<BufferedInputStream> listBis = new ArrayList<BufferedInputStream>();
FileInputStream inputOne=null;
FileInputStream inputFour=null;
BufferedInputStream bisOne=null;
BufferedInputStream bisFour=null;
try {
inputOne = new FileInputStream(fileOne);
inputFour= new FileInputStream(fileFour);
bisOne= new BufferedInputStream(inputOne);
bisFour= new BufferedInputStream(inputFour);

listBis.add(bisOne);
listBis.add(bisFour);
} catch (FileNotFoundException e) {
e.printStackTrace();
}

return listBis;
}

public void outputStream(List<BufferedInputStream> listBis, String filePath) {
for (int i = 0; i < listBis.size(); i++) {
BufferedInputStream fis = (BufferedInputStream) listBis.get(i);
try {
File fileZip = new File(filePath);
if (!fileZip.exists()) {
fileZip.mkdirs();
}
FileOutputStream fot = new FileOutputStream(new File(filePath
+ i + ".bmp"));//输出图片文件名称要根据实际情况来修改
BufferedOutputStream bos = new BufferedOutputStream(fot);
int len;
byte[] by = new byte[1024];
try {
while ((len = fis.read(by, 0, 1024)) != -1) {
bos.write(by, 0, len);
}
bos.flush();
bos.close();
fot.close();
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}

}

public void outbyte(byte[] byteZIP) {
FileOutputStream out;
try {
File outFile = new File("E:/exportFile/missYouxiaoshasha/");
if (!outFile.exists()) {
outFile.mkdirs();
}
out = new FileOutputStream(outFile + "/xiaojianjian_1.zip");
out.write(byteZIP);
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

}

}