So far I only know using
request.getRemoteAddr() get
to get user IP address, is that a way to get Users PC memory?
long maxMemory = runtime.maxMemory();
long allocatedMemory = runtime.totalMemory();
long freeMemory = runtime.freeMemory();
Only get server memory not the client....
How to create a new object for each request in servlets? Where init() will be useful here?
View Replies View RelatedI am using saveToken(request) and isTokenValid(request) to stop duplicate request. But while checking isTokenValid(request), it always returns false.
View Replies View RelatedI am using following servlet code to store the logged in user information in the session.
session = request.getSession();
session.setAttribute("userName", userName );
session.setAttribute( "LoginId", loginId );
The information is getting stored in the session and i am able to retrieve the same for single user. The trouble starts when 2 user logged in from different browser (for example chrome, IE) from the same machine. The 2nd logged in user, overwrite the session information of first user.
How to prevent this.
My environment: Windows 7 64 bit, IBM websphere server, Oracle 11g, JSP, Sevrlet.
Is it possible to get data directly from request object in service method of servlet than why it is not possible to write directly into response object through service method instead of this we have to take PrintWriter or ServletOutputStream class object....
View Replies View RelatedI need to implement Oauth2 with facebook to get authencation. I tried to write a servlet with the method Service, and i got the code thah i have to use in a second request.
Now i need to send a request at this URL :
1) [URL] .....
and wait for a responce with an URL that have the access_token to use with facebook
2) [URL] ....
Is it Possible in a single Servlet after i receive the "code" to send a second request to the URL in 1 and get the response with URL in 2 to retrieve the access_token?? if yes....how??
I have a question about arraylist objects.... I want to create an address book that will contain a persons information (name, phone, address, email..etc..). The first two snippets of code are from the same class ContactArrayList and the last one is from the class Contact. Do I need to create a separate arraylist for each data type? Is it possible to use a single arraylist to contain all the object (person) information and then be searched for using a GUI? I would also like to be able to access this data to be manipulated using a JFrame (add, edit, and search).
public class ContactArrayList<E> implements List<E> {
public int size, capacity;
E contact;
private E[] contacts;
public ContactArrayList() {
size = 0;
capacity = 20;
[Code] ....
I need to track the client IP address from where user requested to my application.
I tried following:
request.getHeader("HTTP_X_FORWARDED_FOR"));
request.getHeader("X-Forwarded-For"));
request.getHeader("Proxy-Client-IP"));
request.getHeader("WL-Proxy-Client-IP"));
request.getHeader("HTTP_CLIENT_IP"));
request.getHeader("HTTP_X_FORWARDED_FOR"));
request.getRemoteAddr());
String ip = InetAddress.getLocalHost().getHostAddress();
In which InetAddress is giving my local machine IP when i run my application in localhost, but I mapped localhost:8080 with IIS server then InetAddress not giving exact IP address. How can we resolve this?
I have a jsp with an img tag whose src is set to request a servlet to display a chart. This is called from another jsp form where user can select various filters. The first time the request is made all works great. but if the user changes the filter settings and and makes the servlet request a second time the chart stays the same. I have verified the new filter values are being set but the servlet is only being called on the initial request.at the head or called servlet I have(I also call a jquery empty on the div that holds the chart between requests. at the moment it just displays the former chart). It is like it is using cache:
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setHeader( "Pragma", "no-cache" );
response.setHeader( "Cache-Control", "no-cache" );
response.setDateHeader( "Expires", 0 );
I am calling a SOAP based webservice using JAX-WS and a client jar. I want to get a request and response somehow and save it for audit purposes. How I can do this?
When I google it, only Handlers come up, but, as far as I understand, it is not applicable on client side.
I generated a WebService from a WSDL using JAXWS and import the finally generated WSDL to my SOAPUI to send out the request and view the response. For some reason, I always have to set WSS TimeToLive as 1000 in the request properties, else I get an error in the response. Now, I generated a client from the WSDL. I wonder if I need to set the WSS TimeToLive here as well
View Replies View RelatedI have an apache server with rest APIs accepting Json object and produce Json object.testing the sever using Chrome advanced rest client show no problems.I then tried to create a jave client, using org.jboss.resteasy:
public T sendPostRequest(String url, T input) throws Exception {
ClientRequest request = getNewClientRequest(url);
ObjectMapper om = new ObjectMapper();
final String body = om.writeValueAsString(input);
request.body(MediaType.APPLICATION_JSON, body);
final ClientResponse<String> responseObj = request.post(String.class);
validateResponseString(url, responseObj);
String responseString = responseObj.getEntity(String.class);
responseObj.releaseConnection();
[code]....
I am making my minor project on a money management website. One problem is occurring:
As we are registering via register.jsp page, the form in that jsp page calls the "saveuser" servlet which saves the user data in the database.
But the data is not getting saved. Following is the code of register.jsp page:
<!DOCTYPE HTML>
<html>
<head>
<title>Virtual Wallet</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
[Code] .....
I want to write one REST client program for POST request ,request and response is in JSON Format.
public String getAck() {
HttpURLConnection httpConnection = null;
URL url=null;
try {
url = new URL("http://test:8080/ils/main");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
[Code]....
Line OutputStream os = httpConnection.getOutputStream();
I am getting connection time out problem
In stateful session bean client servlet we are explicitly setting shoppingCart to session attribute. I do not remember doing similar step withStatelessSession bean.
request.getSession(true).setAttribute("cart",shoppingCart);
I do have have annotation as well
@EJB
ShoppingCart shoppingCart
I am a beginner want to compile servlet with following path
javac -classpath Program FilesApache Software FoundationTomcat 5.5commonlibservlet-api.jar;classes:.-d classes srccomexamplewebBeerSelect.java
Problem arises as follows:
javac: invalid flag: FilesApache
Usage: javac <options> <source files>
use -help for a list of possible options
I want to ask how to track ip address and mac address of a different computer using java?
View Replies View RelatedI am designing an address book. I have come up with the following design:
Address Book:
Attributes : Entry
Methods: add(), delete(), search()
Entry:
Attributes : Name, Address, Phone Number
Methods: addName(),editName(),deleteName(),addPhone(),editPhone(),deletePhone(),addAddress(),editAddress(),deleteAddress()
Name:
Attributes: firstName, lastName
PhoneNumber:
Attributes:areaCode, phoneNumber
Address:
Attributes:streetNumber,streetName,city,zip.
i found a code to get emails from gmail in this forum.It's working very well, now i want to delete a specific sender email address.
So i can have the sender email with this:
Java Code: String senderAddress = aMessage.getFrom()[0].toString();
System.out.println(" From: " + senderAddress); mh_sh_highlight_all('java');
Now i want to do something like
Java Code: If (senderAddress = "test@gmail.com"){
message.setFlag(Flags.Flag.DELETED, true);
} mh_sh_highlight_all('java');
but it's not working.
I wanted to ask is there any way that Java code can get at the address of some object or other datum? I've found this useful a few time with certain high performance C# libraries that I've developed.
Also does Java have the equivalent of C#'s "fixed" buffers? which are inline contiguous arrays of primitives (like Chars or Ints etc).
I am trying to implement an example (Book* : Java SE 7 ..By S G Ganesh) for validating an IP address but it fails to validate a valid IP addresses. I found another example on the internet(**) and it works super fine, no problem at all. I edited the code (the one I got from internet) into the exact format like book and it still works super but i don't understand why the books' example doesn't work though both look exactly the same now ,further more, how can i compare String x and y for equality?
public class TestClass {
void validateIP(String ipStr) {
String one = "((25[0-5]|2[0-4]d|[01]?dd?)(.)){3}(25[0-5]|2[0-4]d|[01]?dd?)"; //copied from internet and edited
String two = "((25[0–5]|2[0–4]d|[01]?dd?)(.)){3}(25[0–5]|2[0–4]d|[01]?dd?)"; // copied from book
String x = "((25[0-5]|2[0-4]d|[01]?dd?)(.))";
String y ="((25[0–5]|2[0–4]d|[01]?dd?)(.))";
[Code] ....
I am doing an assignment for a college class. We are asked to get user input and decide if it is a valid IP address and then check what class the address is and if it is a public or private address.
So far, I can get the input, and check to see if the numbers are in a valid range. I can also display the IP address to the user. I am having an issue figuring out how to get the program to check the classes and whether they are public or private.
import javax.swing.JOptionPane;
/**
This program will take user input and calculate whether it is a valid IP address and the class that it belongs to.
*/
public class shortONE_1
{
public static void main(String[] args)
{
//Variables
final int MIN_OC = 1; //Minimum number accepted
final int MAX_OC = 255; //Maximum number accepted
final int MIN_A = 1; //Min number for class A
final int MAX_A = 127; //Max number for class A
[Code] ....
I have the following questions:
1. Does a GET HTTP request contain a request body? If yes what is contained in it? Are the request headers also part of the request body?
2. Is it possible to send a byte array as part of the GET request in its body?
3. Is there a size limitation on the data that can be sent via a GET request?
I have tried each and every thing in all the other answers. Like setting chunked to false, changing parameters, changing http1.1 -1.0. I am just writing a sample client to compare it with my real time client. Following is the code of client:
package com.webservicemart.ws;
import java.rmi.RemoteException;
import org.apache.axis2.AxisFault;
import com.webservicemart.ws.USZipStub.ValidateZip;
public class UsZipClient {
public static void main(String[] args) {
[Code] ....
And Following is the error :
[INFO] Unable to sendViaPost to url[http://www.webservicemart.com/uszip.asmx]
org.apache.axis2.AxisFault: Transport error: 404 Error: Not Found
at org.apache.axis2.transport.http.HTTPSender.handleResponse(HTTPSender.java:310)
at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:194)
at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:75)
[Code] ....
I have tried with other geoIP service and weather forecast too. I get the same error.
I should do, for my academic project, draw from a java project some information, for example, the class name and the relative method, and for each class even the package name where the class is. The information found must be saved an XML files...
View Replies View RelatedI want to create a new instance of a Java model class for each new request coming to a servlet.
How to do that without doing that in doGet() or doPost().