Proxy Set In Java

Feb 19, 2014

I'm using proxy to crawl some data. So, for now I've this snippet,

public static void IPchange() {
String proxy = 121.11.23.21;
String port = 8080;
Properties systemProperties = System.getProperties();
systemProperties.put("proxySet", "true");
systemProperties.setProperty("http.proxyHost", proxy);
systemProperties.setProperty("http.proxyPort", port);
}

Now, I've a thread say T which is calls this IPchange() method to use proxy. Now, Thread T creates other threads say T1, T2. When I give URL to crawl for this T1 and T2. T1 and T2 will not call IPchange() method. To crawl URL, T1 and T2 now using my Original IP?

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Java Servlet :: Reverse Proxy For Web Application

May 24, 2013

The users of our a enterprise Java based web application must access a third web application through simple HTML links and then navigate in the target application. But for security reasons and constraints the direct exchange between the browers of users and server of the other web application is not allowed. Our web application must retrieve the web page from the other application and must return it to the users's browser. Is there a convenient way to implement this requirement in J2EE ? In this case our web application must play the role of a simple reverse proxy, must request a target JSP page from other application and process it to rewrite the URLs contained in the HTML page, then send the response to user's web browser.

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Jul 29, 2014

I have a problem with several java applications. When I start them Java wants to connect to the certificate authority, to check if the certificate is still valid and not on a blacklist.

The problem is: my whole internet is behind a password protected proxy. If I open my browser i get a windows with username and password. I enter it and internet in the browser works. But for Java it isn't working, because I see no point, where I can enter the password and username for the proxy. I can enter the proxy ip and port in the java settings, but not the password and username. So I get a error screen from java, telling me, that java could not connect. I can disable the check in the java settings, but I don't wont that.
 
Is there a way to tell java, that java uses my proxy with my password and username? I already googled this problem and found nothing except tutorials for connecting with proxy in the java code. But these applications are not from me, I can't change the code ...

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How To Restrict A Certain Website From Proxy Server

Mar 16, 2015

how would i use it to restrict certain websites to be accessed.

SimpleProxyServer.java
import java.io.*;
import java.net.*;
public class SimpleProxyServer {
public static void main(String[] args) throws IOException {
try {
String host = "your Proxy Server";

[code]....

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How To Restrict Certain Website From Proxy Server

Mar 16, 2015

I have this code, how would i use it to restrict certain websites to be accessed.

SimpleProxyServer.java

Java Code:

import java.io.*;
import java.net.*;
public class SimpleProxyServer {
public static void main(String[] args) throws IOException {
try {
String host = "your Proxy Server";
int remoteport = 100;
int localport = 111;

[Code] ....

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Proxy Authentication To Connect To Internet

Apr 25, 2014

For my job I would to develop a Java application which downloads some data from a webpage and then process them.

The problem is that I have to authenticate to a proxy server to connect to the internet. As I browsed on the net, there is a possible way for implementation.
 
Authenticator.setDefault(new Authenticator() {
    @Override
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(username, password);

[Code] .....
 
Sometimes it works fine, but usually I get the following exception:
 
java.io.IOException: Unable to tunnel through proxy. Proxy returns "HTTP/1.1 407 Proxy Authentication Required"
    at sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2083)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
 
I don't understand what's the problem and why it's not persistent.

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HTTPs Request Authentication Failing Even After Setting Proxy

Jul 11, 2014

i am trying to access an https request on a server and authenticating it after passing on username and passwork. I have even set up the proxy of the employer to get the request back as a zipped folder.

I always get an error on: " InputStream reader = con.getInputStream();"

Can be a proxy setting issue too but I am not sure why it should be.

Is there a way to create a secure channel in java to connect to https or by any way the below code could be modified to connect it to the server?

Code is as below:

import java.net.*;
import java.net.Proxy.Type;
import java.io.*;
import javax.net.ssl.HttpsURLConnection;
import com.sun.org.apache.xerces.internal.impl.dv.util.Ba se64;
public class DownloadFile
{

[Code]...

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Sep 12, 2014

I have tried running the java application without adding the site to site list in java security tab. But I get a sand box message as APPLICATION BLOCKED BY SECURITY SETTINGS. How to run the java application without adding the site to site list in java security tab.

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Can Use Java Code From OpenScript Or APIs In Separate Java Program?

Oct 24, 2014

I want to develop a Java program that uses OpenScript APIs to test my applications. The OpenScript framework automatically creates the Java Code so I was thinking of either using this code or create my own using the APIs.
 
I tried both options using NetBeans but I'm getting errors everywhere starting with the library import. I'm pretty new to Java so I'm sure I'm missing a lot of things here. I pasted the code below from the OpenScript framework that want to use in a stand-alone file for your reference.,
 
import oracle.oats.scripting.modules.basic.api.*;
import oracle.oats.scripting.modules.browser.api.*;
import oracle.oats.scripting.modules.functionalTest.api.*;
import oracle.oats.scripting.modules.utilities.api.*;
import oracle.oats.scripting.modules.utilities.api.sql.*;

[Code] ....

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Apr 9, 2015

I've written a java application with several classes all in the same .java file. It works just fine. Now, I've broken it up so that each class has its own .java file. Still works fine. My next step is to put those classes into a package, but I'm not about to get the program to run.The .java source files are all in /home/user/src

I've set the CLASSPATH to /home/user/src..All of the source files have "package com.myfirm.program" on the first line.I compiled the application with:

javac -d . File1.java File2.java File3.java (etc...)

the compiler created the directory: /home/user/src/com/myfirm/program and put all of the .class files in there.So how do I get the program to run? if I run from /home/usr/src

java File1

I get: Exception in thread "main" java.lang.NoClassDefFoundError: File1 (wrong name: com/myfirm/program/Program)

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Apr 14, 2015

I create 2 files:

CircleCalculationMethod.javaMain.java 

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I use Eclipse software

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Sep 19, 2014

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What happens when we add PATH in our Environment Variable How does Eclipse or Other IDE use it?

Second Question is.

For Java SE we declare a Path Variable but for Java EE we do not add any library?(I know we add some jar file like for Servlet(Servlet-api.jar) and for EJB(Ejb.jar),But What is actaul difference?

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Oct 23, 2014

creating a program that will output something like this:

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Your integer contains 2 even digit(s), 3 odd digit(s), and 2 zero(s).

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Dec 4, 2014

I know about coding in general, Java, C, Python, SQL etc. but I barely know anything about making code come together on the web. I have a vague idea about what things like libraries and frameworks are,I'm interested in making a web application with which relies on Java do to the data processing. The idea is that the user inputs some messages, clicks submit, the text is taken away and processed, and the results are displayed on the screen. I would like the UI to be smooth with a modern look and feel.

Also, I usually do programming on Windows but I could also use Linux, so if I'll come across any specific drawbacks using Windows.

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Jan 9, 2015

How do I specify the Working directory where the Java app is located? It may be different on different machines.

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Oct 30, 2014

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How can we achieve this in JAVA?

I have four different UTF-8 character set to convert.

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SM -u2120
R - u00AE
C - u00A9

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Sep 17, 2014

I would like my application to execute a command in cmd. The command looks like

start "" /D "C:Riot GamesLeague of LegendsRADSsolutionslol_game_client_sln
elease s.0.1.55deploy"
"League of Legends.exe" "8394" "LoLLauncher.exe" ""
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So my question is how do I do this?

I tried this, (just copy paste the command):

package MyProject;
 import java.io.IOException;
import java.io.InputStream;
 public class Cmd {
 public static void main(String[] args) {
try {
final Process process = Runtime.getRuntime().exec("start "" /D "C:Riot GamesLeague of

[code]....

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Mar 22, 2015

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Feb 4, 2014

Write a function (or functions) that given a collection of files will produce a sum of integers from each line of each file. Each file can have any number of lines from 1 to N. Each line can contain only one integer and no other alphanumeric characters. All of the numbers from all of the files should be added to the final result. The result is just one number.

For either, what we are looking for is:

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3. Application of good OO design principles to solve the problem
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5. Test Driven Development
6. Well refactored code
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Nov 13, 2014

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Aug 12, 2014

I am trying to run a Powershell command from Java that creates an Active Directory group. I don't get any errors, but it doesn't work either. I can take the output from this class and plug it into the CMD prompt and it works fine.

Java Code:

public class CreateAD {
public int creategroup(String groupname, String description){
String runadcreate;
int errorfree =0;
runadcreate = "powershell Import-Module ActiveDirectory

[code]...

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Dec 22, 2014

I'm converting from ASP to Java for a legacy site. I believe the first part of the if statement is right but I'm having an issue within the else staetment. I'm getting date is undefined, I've tried using getYear and getDate but have not been successful.

ASP:

If Request("action") = "results" Then
aMonth = Request("selMonth")
aDate = cint(Request("selDate"))
aYear = cint(Request("selYear"))
Else
aMonth = UCase(MonthName(Month(Date()),true))
aDate = Day(DateAdd("d",-1,date()))
aYear = Year(Date())
End If

[code]....

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Apr 16, 2014

how to use JFrames and button and so on in Java. I found this video on youtube and followed it along, however even though my program is virtually identical to his, I'm still getting errors.

Here's the video I was watching: Video

And here's my code:

import javax.swing.*; //Imports JFrame and JButton for use
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.*;
import java.awt.*;
import java.awt.event.*;
public class swing

[code]....

The reason why I'm importing some many things is I'm trying everything to try fix my problem.

He's the error messages I'm getting:

frame2.add(panel);
^
C:UsersWindows 8Documentsswing.java:42: error: illegal start of expression
frame2.add(panel);

[code]....

I used to make the button just create another frame without additional labels but I changed it to be even more similar to his program just to rule everything out. Also initially my program varied quite a bit, I've changed everything to be like his. Even without the ";" error I got, I kept telling me I was not allowed have my class as static, even though the guy in the video has it set to static. Also I don't think my "setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);" is working as it doesn't change color.

I think the problem is with my panel, it isn't adding to the frame for some reason.I'm using TextPad7 and I'm using Win8.

C:UsersWindows 8Documentsswing.java:42: error: '(' or '[' expected
frame2.add(panel);
^
C:UsersWindows 8Documentsswing.java:42: error: illegal start of expression
frame2.add(panel);

[code]....

I would also like to point out that some of the comments are out of date and are referencing the way the program was before I made it just like his. For example I know my second class isn't inheriting the first class.

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Apr 27, 2014

How can I get all XML branches using JAVA. For example if i have the following XML:

<?xml version="1.0" encoding="UTF-8"?>
<addresses xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation='test.xsd'>
<address>
<name>Joe Tester</name>
<street>Baker street 5</street>

[Code] ....

The output will be :

addresses
addresses_address
addresses_address_name
addresses_address_street
addresses_person
addresses_person_name
addresses_person_age

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