今天在弄一个东西，需要在PL/SQL中解压zip的压缩包，刚开始的时候是想着直接在PLSQL中调用java，在java里面调用unzip的shell命令来解析压缩文件，但是比较悲剧，一直老是失败，在尝试很多次之后，只能使用JAVA的大招来解决了，就是直接在java里面解压zip压缩文件，这个是基于java最基本的类来实现的。

具体代码：

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

public class UnZip

{

private static final int buffer = 2048;

public static void unZip(String path)

{

int count = -1;

int index = -1;

String savepath = “”;

boolean flag = false;

//这里的\\根据系统不同，需要改变window是\\，linux是/

savepath = path.substring(0, path.lastIndexOf(“\\”)) + “\\”;

try

{

BufferedOutputStream bos = null;

ZipEntry entry = null;

FileInputStream fis = new FileInputStream(path);

ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));

while((entry = zis.getNextEntry()) != null) {

byte data[] = new byte[buffer];

String temp = entry.getName();

flag = isWantedFiles(temp);

if(!flag)

continue;

index = temp.lastIndexOf(“/”);

if(index > -1)

temp = temp.substring(index+1);

temp = savepath + temp;

File f = new File(temp);

f.createNewFile();

FileOutputStream fos = new FileOutputStream(f);

bos = new BufferedOutputStream(fos, buffer);

while((count = zis.read(data, 0, buffer)) != -1) {

bos.write(data, 0, count);

}

bos.flush();

bos.close();

}

zis.close();

} catch (Exception e) {

e.printStackTrace();

}

}

//过滤自己想要的格式

public static boolean isWantedFiles(String filename){

boolean flag = false;

if(filename.endsWith(“.txt”)|| filename.endsWith(“.csv”)|| filename.endsWith(“.exc”))

flag = true;

return flag;

}

public static void main(String[] args) {

UnZip.unZip(“E:\\test\\test.zip”);

}

}