Problem sending http request

I have a Java program that creates a url from a String, then uses the openConnection method of URLConnection to send the request to a web server. The exact same Url string works fine from my browser, but the Java program throws a java.io.FileNotFoundException. Other url's work OK.
Any pointers as to what could cause this are appreciated.

See if anything in http://forum.java.sun.com/thread.jsp?forum=4&thread=135019 helps you.

Similar Messages

Problems sending HTTP request to PI

In order to receiver a HTTP request from HTTP server onto PI, what things needs to be defined in PI?
there is an HTTP application which can connect to other PI server in my environment without any issues, but when I point it to intended PI server, it is throwing exceptions. Where am I doing wrong? do I need to create a some RFC destination for this?

Hello!
Since you are talking about "PI" I believe you're using 7.1X.
From this, check this link: http://help.sap.com/saphelp_nwpi71/helpdata/EN/44/bcd15381f456a1e10000000a1553f6/frameset.htm
Also, when you go to the INTEGRATION_DIRECTORY_HMI, the result
should be 500 "Internal Server Error" and not the 200 Ok that we're used to
Hope it helps!
Regards,
Caio Cagnani

Problem in sending HTTP request to the server.

Hi,
i dveloped an ant script for sar deployment.
i deployed a sar to my local soa server with ant script. it got deployed succesfully..
but when i try to deploy to a remote server, getting the below error..
"Problem in sending HTTP request to the server. Please make sure the server is up and/or check standard HTTP response code for 404"
but the server is up and runnig and i am able to ping it from my machine and also access the console...
below is my script
build.properties
wn.bea.home=C:/Oracle/Middleware
all.needed.jars.path=D:/SourceCode/neededJAR
oracle.soa.home=C:/Oracle/Middleware/Oracle_SOA1
java.passed.home=C:/Oracle/Middleware/jdk160_24
#Deployment environment
deployment.plan.environment=DEV
#Deploy Action
deployAction =redeploy
#credentials
user=weblogic
password=welcome1
#For Composite deployment
serverURL=http://10.177.154.6:7001
forceDefault=true
server=10.177.154.6
port=7001
sarLocation=D:/SourceCode/JAR
build.xml
<?xml version="1.0" encoding="iso-8859-1"?>
<project name="soaDeployAll" default="deployAll">
     <echo>basedir ${basedir}</echo>
     <property environment="env"/>
<echo>current folder ${basedir}</echo>
     <property file="${basedir}/build.properties"/>
     <taskdef resource="net/sf/antcontrib/antlib.xml">
     <classpath>
          <pathelement location="${all.needed.jars.path}/ant-contrib.jar"/>
     </classpath>
     </taskdef>
     <target name="init">
          <tstamp>
               <format property="timestamp" pattern="yyyy-MM-dd_HH-mm-ss"/>
          </tstamp>
          <property name="build.log.dir" location="${basedir}/buildlogs"/>
          <mkdir dir="${build.log.dir}"/> <property name="build.log.filename" value="build_${timestamp}.log"/>
          <record name="${build.log.dir}/${build.log.filename}" loglevel="verbose" append="false"/>
          <echo message="Build logged to ${build.log.filename}"/>
     </target>
     <target name="deployAll" depends="init">
     <echo>Deploy for environment ${deployment.plan.environment}</echo>
     <antcall target="deployAllComposites"/>
</target>

     <target name="deployAllComposites" depends="init">
     <foreach target="deployComposites" param="Files">
          <fileset dir="${sarLocation}" casesensitive="no" includes="*.jar"/>
     </foreach>
     </target>
     <target name="deployComposites" depends="init">
     <basename file="${Files}" property="basename"/>
<echo>Deploy Project ${basename} for environment ${deployment.plan.environment}</echo>
          <if>
               <equals arg1="${deployAction}" arg2="deploy" />
               <then>
                    <echo message="Deploying composites in Managed server........." />
                    <ant antfile="${oracle.soa.home}/bin/ant-sca-deploy.xml" inheritAll="true" target="deploy">
                         <property name="serverURL" value="${serverURL}"/>
                         <property name="user" value="${user}"/>
                         <property name="password" value="${password}"/>
                         <property name="overwrite" value="false"/>
                         <property name="forceDefault" value="${forceDefault}"/>
                         <property name="sarLocation" value="${sarLocation}/${basename}"/>
                    </ant>
               </then>
               <else>
                    <echo message="ReDeploying composites in Managed server........." />
                    <ant antfile="${oracle.soa.home}/bin/ant-sca-deploy.xml" inheritAll="true" target="deploy">
                         <property name="serverURL" value="${serverURL}"/>
                         <property name="user" value="${user}"/>
                         <property name="password" value="${password}"/>
                         <property name="overwrite" value="true"/>
                         <property name="forceDefault" value="${forceDefault}"/>
                         <property name="sarLocation" value="${sarLocation}/${basename}"/>
                    </ant>
               </else>
          </if>
</target>
</project>
please help....

Hi,
Give the serverURL as http://<host>:<managed.server.port>/soa-infra/deployer and try.
e.g . http://10.177.154.6:8001/soa-infra/deployer
Regards,
Neeraj Sehgal

Problem with HTTPS requests to host with untrusted server certificate

Hi,
I develop an iPhone framework which sends HTTPS requests in order to communicate with a publicly available backend server. Currently I have a big problem regarding untrusted server certificates.
The certificate of the backend server is not signed by a trusted CA, so my first approach was to use NSURLRequest's private allowsAnyHTTPSCertificateForHost. While this worked as expected an was fine as temporary workaround, our customer demands a clean solution as final result. Therefore I wrote a method which allows to install a provided certificate from the file system in the keychain, but this method does not work as expected in the iPhone Simulator. The certificate is installed in the host machine's Mac OS X keychain instead. Unfortunately, if I call NSURLConnection's sendSynchronousRequest method, I retrieve an "untrusted server certificate" error. It seems as if NSURLConnection is not able to access the host's Mac OS X keychain to retrieve the certificate.
Is my guess correct or did I miss something?
Would my approach work if I ran my app on a real iPhone device instead (I do not have one available yet)?
Does there exist a keychain in the iPhone Simulator at all?
Is it at all possible to send HTTPS requests to a server with an untrusted certificate on the iPhone Simulator or do I have to use precompiler directives to implement different routines depending on the underlying platform (simulator or device, respectively)?
Any help is highly appreciated.
Thanks,
Matthias

Indeed this would be a clean and simple solution. But our customer is not willing to get a real certificate, for whatever reasons.
The question that remains is if the HTTPS requests would succeed on the iPhone device itself if the server certificate was installed in the keychain by the same app beforehand.

ExecutorService creating tasks to send HTTP requests - time out

In my java application, I have introduced ExecutorService to create tasks. The tasks consist of sending HTTP requests to an application server, to process transactions. The ExecutorService will process about 1000 requests.
The executor process the transactions and terminates OK, but some of the transactions timed out (before introducing ExecutorService, I was just sending one transaction at time, all the transactions were processed OK; but, it was taking a long time to process).
See the code below.
private ExecutorService threadExecutor;
threadExecutor = Executors.newFixedThreadPool(30);
threadExecutor.execute(transaction);
try
//Shutting down the ThreadExecutor
threadExecutor.shutdown();
threadExecutor.awaitTermination(30, TimeUnit.SECONDS);
threadExecutor.shutdownNow();
catch (InterruptedException e)
System.out.println("ERROR - cannot shutdown the ThreadExecutor - exception is: " + e);
Is this the best way to implement this use case?
Thank you.

From the above code, it seems like you are starting only a single transaction in a thread pool. Or does the transaction object you pass to the threadExecutor spawn more tasks for the executor?
If you are indeed still making all HTTP requests from the single transaction object, then yes, it will 'time-out' after 30 seconds, since the ExecutorService was instructed to stop its threads after that period of time.
Your description of the use case is actually a good example of the usage of an ExecutorService, since it is faster to do 1000 HTTP requests in parallel than it is to do them sequentially.
Consider this:
ExecutorService threadExecutor = Executors.newFixedThreadPool(30);
for (int i = 0; i < 1000; i++)
threadExecutor.execute(new Transaction());
try
threadExecutor.shutdown();
threadExecutor.awaitTermination(30, TimeUnit.SECONDS);
threadExecutor.shutdownNow();
catch (InterruptedException e)
// Ignore
}This will spawn 1000 transactions that will execute in parallel, with max. 30 running at any single point in time. Any transactions still not executed after 30 seconds will be terminated.
Hope this helps.
--JH
Edited by: Kramor_dude on Nov 5, 2009 6:55 AM

File.upload on Air SDK for iOS devices failed to send http request to server.

I am trying to use ActionScript's File.upload to upload a file on Air SDK for iOS8 environment, but the File.upload does not work properly. No handler about the file upload is executed after File.upload is invoked, and no exception is caught. When I check the network traffic of the server side, I found that no http request even hit the server after File.upload is executed. The code snippet here is very simple.
private var file:File;
private var dir:File;
//This method is executed to create a file and upload it when the Upload Button is pressed.
protected function OnUploadButtonPressed(event:MouseEvent):void{
var str:String = 'This is test';
var imageBytes:ByteArray = new ByteArray();
for ( var i:int = 0; i < str.length; i++ ) {
imageBytes.writeByte( str.charCodeAt(i) );
try{
dir = File.applicationStorageDirectory
var now:Date = new Date();
var filename:String = "test" + now.seconds + now.milliseconds + ".txt";
file = dir.resolvePath( filename );
var stream:FileStream = new FileStream();
stream.open( file, FileMode.WRITE );
stream.writeBytes( imageBytes );
stream.close();
file.addEventListener( Event.COMPLETE, uploadComplete );
file.addEventListener( IOErrorEvent.IO_ERROR, ioError );
file.addEventListener( SecurityErrorEvent.SECURITY_ERROR, securityError );
file.addEventListener(ErrorEvent.ERROR, someError);
file.addEventListener(ProgressEvent.PROGRESS, onProgress);
file.upload( new URLRequest("http://10.60.99.31/MyPath/fileUploadTest.do"));//This line does not work. No handler is executed. No http request hit the server side.
} catch( e:Error ) {
trace( e );
//Complete Handler
private function uploadComplete( event:Event ):void
trace( "Upload successful." );
//IOError handler
private function ioError( error:IOErrorEvent ):void
trace( "Upload failed: " + error.text );
//SecurityError handler
private function securityError(error:SecurityErrorEvent):void{
trace( "Security error:" + error.text );
//Other handler
private function someError(error:ErrorEvent):void{
trace("some error" + error.text);
//Progress handler
private function onProgress(event:ProgressEvent):void{
trace("progressHandler");
When executed on Air Simulator, it works fine as expected, and the file is successfully uploaded to the server. But When executed on iOS devices(in my case, iPad), as I explain early, no handler about the file upload is executed, and no the http request even hit the server. So I think the problem may be in the client side. It seems that the Air SDK for iOS just failed to send the http request for some reason.
To make my problem more clear, I list my environment below:
Development Environment: Windows7 (64bit) / Mac os 10.9.4 (Tested on OS platforms.)
IDE: Flash Builder 4.7
Air SDK: 3.8 / 16.0.0 (After I updated to the lastest Air SDK 16.0.0 , the problem still exists.)
Application Server: Tomcat7 + Spring
Target OS: iOS 8
I have been struggling for this for days. So I really appreciate it if anyone has any idea about this.
Thanks in advance.

Hi bluewindice ,
As you have quoted ( ActionScript's File.upload does not work on Air SDK for iOS devices ) , this issue has been replicated at our end, and our team will be working on it.
Thanks,
Tushar

Apache HA: Probe sends HTTP request to HTTPS port

Hello,
i have a Sun 3.2 Cluster and the Apache HA module configured as described in the documentation. Works fine, except of the probe sending a HTTP request to the HTTPS port - this causes every minute an error log entry which is annoying. The log file runs full of these "HTTP spoken on HTTPS port" messages.
I have already tried to set the Monitor_Uri_List parameter to http://servername:80/ but this does not help. Has anyone a solution to this problem? Can I just re-create the apache HA module and leave out the '44/tcp' in the Port_list parameter?
Thanks for help,
marc.

It doesnt matter where they are, you just need to set up the two virtual hosts as per my example. The fact that the domains are the same with/without ssl doesnt change my example above.
So, you need to set up one ssl host for the domain sharpie.pen.com, and a non-ssl host for the domain sharpie.pen.com. If you want bic.pen.com to have the same behavior you will need another pair for that.
Apache must have a virtual host to respond to a port/domain combination.
The reason I suggested a re-write rule of the form I did was to ensure that if someone went to:
http://sharpie.pen.com/webmail/login.php (for instance)
they would be redirected to
httpS://sharpie.pen.com/webmail/login.php
rather than the root of the domain.
Does this help?
James

In ActionScript 2.0 , How can I send HTTP request and get the response in JSON format.

I am using ActionScript 2.0 for my app development. I have checked XML and LoadVars class. These classes by default send/receive data either in XML or name/value pair format. I want to send data in JSON format and receive the response in JSON format. How can I achieve this behavior using AS2.0. I have noticed that AS3.0 has the capabilities to do so. My client platform doesn't support AS3.0. Can anybody suggest a way to achieve this?
Thanks in Advance.

Atlast I am able to find the solution for this problem. In the end solutioin is very simple.
Following steps will help in sending request in JSON format.
1. extend LoadVars class
2. override toString method. (It should return JSON format )
3. Use subclass to send the request.

Send HTTP Request to Server

Guys,
i need to implement a program that will send request to the server and recieve the http response from the server.
Some of information will attached in the http response from the server.
My application must able to catch out this info in the http response header.
I had use the httpClient jar to send the request and i able to recieve http response 200 or 400 only from the server.
Can any one of you give me some idea on how to retrieve the attached info in the response header?
Thanks in advance.

See http://jakarta.apache.org/commons/httpclient/apidocs/index.html
package org.apache.commons.httpclient.methods methods: GetMethod PostMethod : getResponseHeaderGroup, getResponseHeaders, getResponseHeaders...

Sending HTTP request to an unknown URL

How to set timeout and continue the flow in plsql when a http request is sent to an unknown ip(fake ip). I am sending request using utl_http package. i tried setting timeout using utl_http.set_transfer_timeout but no luck.I would like to know some suggestions on this. im really bugged on this for the past 2 weeks. I posted this twice. But there was no satisfactory answers.
please help.

Here's what i tried using exception handlers. but it does not work
IF (cou > 0) THEN
          DECLARE
                l_url            VARCHAR2(256) ;
                l_http_request   UTL_HTTP.req;
                l_http_response UTL_HTTP.resp;
                    l_url := hostname;
                    UTL_HTTP.set_transfer_timeout(5);
                        l_http_request := UTL_HTTP.begin_request(l_url);
                     l_http_response := UTL_HTTP.get_response(l_http_request);
                  UTL_HTTP.end_response(l_http_response);
CASE WHEN l_http_response.status_code = 200 THEN
            proc('Success')
            WHEN l_http_response.status_code in(401,403,500,503) THEN
      proc('Error')
        END CASE;
                EXCEPTION WHEN OTHERS THEN
            Result := 'continue';
           END;
      END IF;

Sending http request form forte to webserver

Hai ,
Do any one has an idea of sending the HTTP request from forte client to the
webserver where my servlet is running.
Thanks in Advance
mahesh

Here's what i tried using exception handlers. but it does not work
IF (cou > 0) THEN
          DECLARE
                l_url            VARCHAR2(256) ;
                l_http_request   UTL_HTTP.req;
                l_http_response UTL_HTTP.resp;
                    l_url := hostname;
                    UTL_HTTP.set_transfer_timeout(5);
                        l_http_request := UTL_HTTP.begin_request(l_url);
                     l_http_response := UTL_HTTP.get_response(l_http_request);
                  UTL_HTTP.end_response(l_http_response);
CASE WHEN l_http_response.status_code = 200 THEN
            proc('Success')
            WHEN l_http_response.status_code in(401,403,500,503) THEN
      proc('Error')
        END CASE;
                EXCEPTION WHEN OTHERS THEN
            Result := 'continue';
           END;
      END IF;

Send http request..

hi to all !
someone can tell me the one way for send a request http like for browser "http://127.0.0.1:8080/cgi-bin/wap_push.cgi?"username=nico&password=nico" but with java.net library ?
thanks in advance,(and sorry for my english..;-))
nico

http://java.sun.com/docs/books/tutorial/networking/urls/index.html

Webdispatcher problem: Forwarding http requests don't work

hi experts,
i'am trying to configure my webdispatcher in order forwarding http requests to my sap netweaver message server (AS JAVA instance).
here is my profile file:
SAPSYSTEMNAME = WDP
SAPGLOBALHOST = myWebDispatcherHost
SAPSYSTEM = 10
INSTANCE_NAME = W10
DIR_CT_RUN = $(DIR_EXE_ROOT)\$(OS_UNICODE)\NTAMD64
DIR_EXECUTABLE = $(DIR_CT_RUN)
Accesssability of Message Server
rdisp/mshost = mysapdevServer
ms/http_port = 8121
Configuration for medium scenario
icm/max_conn = 500
icm/max_sockets = 1024
icm/req_queue_len = 500
icm/min_threads = 10
icm/max_threads = 50
mpi/total_size_MB = 80
SAP Web Dispatcher Ports
icm/server_port_0 = PROT=HTTP,PORT=81$$
icm/HTTP/redirect_0 = PREFIX=/, TO=/irj/portal
MyTrace file i got it from web administration screen after lanching this address on my navigator http://myWebDispatcherHost/
[Thr 2876] Mon Jul 07 16:36:34 2008
[Thr 2876] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]
[Thr 3748] Mon Jul 07 16:36:36 2008
[Thr 3748] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]
[Thr 3464] Mon Jul 07 16:43:55 2008
[Thr 3464] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]
[Thr 3464] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]
[Thr 2876] Mon Jul 07 16:43:59 2008
[Thr 2876] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]
[Thr 3852] Mon Jul 07 16:47:42 2008
[Thr 3852] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]
Can you give me some advices to go throug this issue
Thanks,

Hi Srinivas,
We have installed web dispatcher on cluster nodes... and web dispacther is unable to connect to message server.
We are on cluster CI ,DI and SQL server runs on different systems.
I have installed web dispatcher on CI & DI.. on CI web dispatcher is up and DI is coming down after couple of minutes if we try to bring it up.
dev_webdisp:
[Thr 3636] Wed Jul 30 14:59:51 2008
[Thr 3636] *** ERROR => NiPConnect2: SiPeekPendConn failed for hdl 5 / sock 131344
     (SI_ECONN_REFUSE; I4; ST; 10.16.148.36:8100) [nixxi.cpp    2764]
[Thr 3636] *** ERROR => Connection request from (-1/65535/0) to host: nbcdqsasc10b.corp.irvineco.com, service: 8100 failed (NIECONN_REFUSED) [icxxconn.c 2731]
[Thr 3636] *** ERROR => IcmConnClientRqCreate() failed (rc=-8) [icrxx.c      4919]
[Thr 3636] *** ERROR => Could not connect to SAP Message Server at nbcdqsasc10b.corp.irvineco.com. URL=/msgserver/text/logon?version=1.2 [icrxx.c      2301]
[Thr 3636] *** ERROR => rc=-1, HTTP response code: 0 [icrxx.c      2302]
[Thr 3636] *** ERROR => see also OSS note 552286 [icrxx.c      2303]
[Thr 7944] Wed Jul 30 15:00:48 2008
[Thr 7944] *** ERROR => htmlEncode: called with empty string [icpif.cpp    847]
[Thr 7252] Wed Jul 30 15:00:57 2008
[Thr 7252] *** ERROR => htmlEncode: called with empty string [icpif.cpp    847]
[Thr 10200] Wed Jul 30 15:01:07 2008
[Thr 10200] *** ERROR => htmlEncode: called with empty string [icpif.cpp    847]
[Thr 1868] Wed Jul 30 15:01:18 2008
[Thr 1868] *** ERROR => htmlEncode: called with empty string [icpif.cpp    847]

Problem in HTTP Request HTTP_RESP_STATUS_CODE_NOT_OK

Hai Gurus,
I am sending request from HTTP --> XI --> ABAP Proxy (Inbound). Its working fine when i execute proxy manually in tcode "sproxy". When do the same with HTTP Client it is throwing the following error.
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
- 
- <SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="1">
<SAP:Category>XIServer</SAP:Category>
<SAP:Code area="INTERNAL">HTTP_RESP_STATUS_CODE_NOT_OK</SAP:Code>
<SAP:P1>500</SAP:P1>
<SAP:P2>Internal Server Error</SAP:P2>
<SAP:P3 />
<SAP:P4 />
My proxy does the work of uploading the files to Document Storage System KPro using standard BAPI's. I have used SAPFTP and SAPHTTP dlls in client machine's system32 folder (Which will help in downloading the document from client windows OS machine to SAP GUI AIX based machine).
Still facing the same problem which will throw error HTTP_RESP_STATUS_CODE_NOT_OK with error code 500.
Any help is highly appreciated.
Regards,
Pushparaju Bollapalli.

Also Check these Foloowing ;
- URL for the receiver is like this:
http://<host>:<port>/sap/xi/engine?type=receiver .The XI 2.0 differs from XI 3.0 in this.
-path in the receiver communication channel
The path has to be defined as:
/sap/xi/engine?type=entry for XI 3.0
/sap/xi/engine?type=receiver for XI 2.0
Regards
Aashish Sinha
PS : Reward points if Helpful

The application can not send http-request being on a virtual machine.

Hello, I have console application, which process data, and send report to Web API controller of my site. But the data do not reach the controller. Watching visual studio debugger for the controller, I see that he has not even called. But the application
being launched on my local PC, regularly sends data to the controller.
Im using HttpClient class, here is string which send data to server:
Client.PostAsJsonAsync("http://[site].azurewebsites.net/api/Decision", report);
VM OS - Windows Server 2012.
What could be the
problem?

Hi,
Did you create the http endpoint for virtual machine?
Regards.
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Problem sending http request

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