Http POST.

Hi,

Attached below is the file

Server(Testconn) and client-(Httptest)

import java.io.*;

import java.net.*;

import java.util.*;

import java.util.zip.ZipFile;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

public class HttpTest extends Frame implements ActionListener

{

ZipFile zip = null;

java.awt.List list = null;

//The zip file name.

String filename = null;

MenuItem mOpen, mQuit;

public static void main(String args[])

{

new HttpTest();

}

public HttpTest()

{

setTitle("UnZip Tool");

setLayout(new BorderLayout(3, 3));

add(new Label("Http URL Test: Open a jar/zip file, it will visit your Servlet and go back."),

"North");

list = new java.awt.List(20, true);

add(list, "Center");

MenuBar mb = new MenuBar();

setMenuBar(mb);

Menu mFile = new Menu("File");

mb.add(mFile);

mOpen = new MenuItem ("Open", new MenuShortcut('O'));

mFile.add(mOpen);

mFile.addSeparator();

mQuit = new MenuItem("Quit", new MenuShortcut('Q'));

mFile.add(mQuit);

mOpen.addActionListener(this);

mQuit.addActionListener(this);

addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) { quit(); }

});

setBounds(100,100, 400, 600);

show();

}

void open()

{

FileDialog f = new FileDialog(this, "Open a Zip File",

FileDialog.LOAD);

f.show();

if(f.getFile() == null)

{

return;

}

try

{

filename = new File(f.getDirectory(), f.getFile()).getAbsolutePath();

//FileInputStream fis = new FileInputStream(filename);

//ZipInputStream zis = new ZipInputStream(fis);

zip = new HTTPComu(new File(filename)).getZipFile();

list.removeAll();

ZipEntry entry;

if (zip == null) {

return;

}

Enumeration enum = zip.entries();

while(enum.hasMoreElements()) {

entry = (ZipEntry)(enum.nextElement());

if(!entry.isDirectory()) {

list.add(entry.getName());

}

}

}

catch(Exception e)

{

System.out.println("Error: Can't open zip file " + f.getFile());

e.printStackTrace();

}

}

void quit()

{

System.exit(0);

}

public void actionPerformed(ActionEvent e)

{

Object source = e.getSource();

if (source == mOpen) open();

else if (source == mQuit) quit();

}

}

class HTTPComu {

File input = null;

String outputFile = null;

public ZipFile getZipFile() {

if (outputFile == null) {

return null;

}

try {

return new ZipFile(outputFile);

} catch (Exception e) {

return null;

}

}

private String name = "Fred's test HTTP Connector!";

private Hashtable hash = new Hashtable();

public HTTPComu(File zip) {

try {

input = zip;

hash.put("hello", " helloValue ....");

hash.put("hello!", "Christmas");

/*

Properties props = new Properties();

FileInputStream in = new FileInputStream("PostTest.properties");

prps.load(in);

props.remove("URL");

*/

URL url = new URL("http://ferret:80/servlet/TestCon");

HttpURLConnection connection = (HttpURLConnection)url.openConnection();

connection.setDoOutput(true);

connection.setDoInput(true);

connection.setUseCaches(false);

connection.setAllowUserInteraction(false);

send(connection);

receive(connection);

connection.disconnect();

//output = input;

} catch (Exception e) {

System.out.println("Error: " + e);

e.printStackTrace();

}

}

private void send(HttpURLConnection connection) {

try {

String contentType = "application/x-www-form-upload";

connection.setRequestProperty("Content-Type", contentType);

connection.setRequestProperty("Connection", "keep-alive");

connection.setRequestMethod("POST");

ObjectOutputStream out = new ObjectOutputStream(connection.getOutputStream());

out.writeObject(name);

out.writeObject(hash);

System.out.println("Sent hash table:\n" + hash);

FileInputStream in = new FileInputStream(input);

byte[] data = getFileData(in);

in.close();

out.writeObject(data);

System.out.println("Sending finished!");

out.flush();

out.close();

} catch (Exception e) {

System.out.println("Sedning error : " + e);

}

}

private void receive(HttpURLConnection connection) throws Exception {

try {

//HttpURLConnection.HTTP_CLIENT_TIMEOUT = 4096;

System.out.println("Receiving starts!");

System.out.println("Type: " + connection.getContentType() +

"\tLength: " + connection.getContentLength() +

"\tEncoding: " + connection.getContentEncoding());

ObjectInputStream in = new ObjectInputStream(connection.getInputStream());

System.out.println("Receiving going !");

File output = File.createTempFile("http", ".zip");

outputFile = output.getPath();

output.deleteOnExit();

System.out.println("Create tmp file " + output);

FileOutputStream fileout = new FileOutputStream(output);

Object obj;

obj = in.readObject();

hash = (Hashtable)obj;

System.out.println("Returned hash table:\n" + hash);

obj = in.readObject();

byte[] data = (byte[])obj;

fileout.write(data, 0, data.length);

fileout.close();

in.close();

System.out.println("Receiving finished! " + data.length);

} catch (Exception e) {

System.out.println("Receive error: " + e);

e.printStackTrace();

}

}

public byte[] getFileData(InputStream in)

throws IOException {

ByteArrayOutputStream out = new ByteArrayOutputStream();

int size = 2048;

byte data[] = new byte[size];

int readedSize;

long count = 0;

while((readedSize = in.read(data, 0, size)) != -1) {

out.write(data, 0, readedSize);

count += readedSize;

}

System.out.println("Reading file! " + count);

out.close();

return out.toByteArray();

}

}

--

import java.io.*;

import java.util.*;

import java.util.zip.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class TestCon extends HttpServlet {

File output = null;

public void doGet(HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {

System.out.println("Do Get in the Echo!");

//doPost(req, res);

res.setContentType("text/html");

PrintWriter out = res.getWriter();

out.print("<html>");

out.print("<head><title>Hello World3</title></head>");

out.print("<body>");

out.print("<h1>Hello World" + new Date() + "</h1>");

System.out.println("TestCon doGet!");

out.print("</body></html>");

}

public void doPost(HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {

ZipFile zip;

String name;

Hashtable hash;

Object obj;

try {

//ByteArrayOutputStream buffer = new ByteArrayOutputStream();

res.setContentType("text/html");

ObjectInputStream in = new ObjectInputStream(req.getInputStream());

System.out.println("TestCon doPost!");

obj = in.readObject();

name = (String) obj;

obj = in.readObject();

hash = (Hashtable) obj;

output = File.createTempFile("http", ".zip");

output.deleteOnExit();

System.out.println("Create tmp file " + output);

FileOutputStream fileout = new FileOutputStream(output);

obj = in.readObject();

byte[] data = (byte[]) obj;

fileout.write(data, 0, data.length);

System.out.println("Reading Finished! " + data.length);

fileout.close();

//in.close();

System.out.println("Name " + name);

System.out.println("Hash " + hash);

//System.out.println("Length " + length);

////Send back

//ObjectOutputStream out = new ObjectOutputStream(buffer);

res.setBufferSize(data.length + 10240);

ObjectOutputStream out = new ObjectOutputStream(res.getOutputStream());

out.writeObject(hash);

System.out.println("Start to sending back!");

//FileInputStream filein = new FileInputStream(output);

//data = getFileData(filein);

//filein.close();

out.writeObject(data);

System.out.println("Writing data!");

//res.setBufferSize(buffer.size() + 1024);

//res.setContentLength(buffer.size());

out.close();

System.out.println("Sending back finished!" + data.length);

} catch (Exception e) {

System.out.println("Reading data error " + e);

e.printStackTrace();

}

}

public byte[] getFileData(InputStream in)

throws Exception {

ByteArrayOutputStream out = new ByteArrayOutputStream();

int size = 2048;

byte data[] = new byte[size];

int readedSize;

long count = 0;

while((readedSize = in.read(data, 0, size)) != -1) {

out.write(data, 0, readedSize);

count += readedSize;

}

System.out.println("\tReading file ! " + count);

out.close();

return out.toByteArray();

}

public String getServletInfo() {

return "Echo what it gets from client";

}

}

I hope this will help you.

Thanks

Bakrudeen

bakrudeen_indts at 2007-6-29 2:55:08 >