Java Application + Uploading Files

Hey everyone,
I was wondering what the possibilities were if i wanted to implement a feature
in my java application to upload an image file and an XML file. Is this possible? Does anyone know more about the subject? Thanks.

Is your application the client (which will be uploading to some other computer) or is it the server (which will be uploading from some other computer)?

Similar Messages

Java application - processing files on different unix server

Hi,
I was wondering if it is possible to
a) read a file that is on a different unix server to the one that my java application is on
b) move a file from one directory on the remote unix server to another directory on the remote unix server
Regards,
sabretooth

for (b):
If I were you I would set up a FTP account for your app on the remote unix server. Then I would get my hands on a simple ftp framework
and simply:
Ftp ftp = new Ftp("UNIXHostIP", username, password);
ftp.connect();
ftp.moveRemoteFile("form here","to here");
ftp.disconnect();
some frameworks:
JScape, iNet Factory: com.jscape.inet.ftp.Ftp
/n software, IP*Works: ipworks.Ftp
Enterprise Distributed Technologies, Java FTP Client Library: com.enterprisedt.net.ftp.FTPClient
IBM alphaWorks, FTP Bean Suite: com.ibm.network.ftp.protocol.FTPProtocol
SourceForge, JFtp: net.sf.jftp.net.FtpConnection
The Jakarta Project, Jakarta Commons/Net: org.apache.commons.net.ftp.FTPClient
JavaShop JNetBeans: jshop.jnet.FTPClient
Sun, JDK: sun.net.ftp.FtpClient
Florent Cueto, JavaFTP API: com.cqs.ftp.FTP
Bea Petrovicova, jFTP: cz.dhl.ftp.Ftp
The Globus Project, Java CoG Kit: org.globus.io.ftp.FTPClient
I recomend JScape's INetFactory (Easy to use)
OR the one from Jakarta (Free)
IP*Works (TOP Quality at a price)
Check out http://www.javaworld.com/javaworld/jw-04-2003/jw-0404-ftp.html
for a complete review of all the ftp frameworks
Firewalls?
make a folder that is public on the unix server-ie falls outside the firewall if there is one (fire walls might cause problems for you)
Unless you know the password to get through the Proxy then this should not be a problem.

Creating an xdp file from flex/java application

Hi,
I have an application in Flex 4 and As 3.When I click a button in flex application I have to generate a file in java with
extension xdp.When I try this locally(Run as java application) the file is generating correctly.When i compile the applic
ation and try it, the file is not writing correctly.Do someone have any idea about creating an xdp file from flex application?
i am using blazeds to connect java and flex4.When i opens the file in notepad the file is writing correctly.There is only problem in openig an xdp file...
please help me.

specifically:
Runtime.getRuntime().exec("filename.exe")

Problems with File I/O in java applications at KVM/CLDC Layer

I wrote couple of programs made use of Connector.open with "file" protocol to perform File I/O.
Code snippet from java application for File Read
InputConnection conn = (InputConnection)
Connector.open("file:/input.txt", Connector.READ );
I got javax.microedition.io.ConnectionNotFoundException: The requested protocol does not exist file:/input.txt
Code snippet from java application for File Write
OutputConnection conn = (OutputConnection)
Connector.open( "file:/input.txt;append=true", Connector.WRITE );
I got javax.microedition.io.ConnectionNotFoundException: The requested protocol does not exist file:/input.txt;append=true
I have couple of questions
1. Does Connector class support "file" protocol at KVM/CLDC layer of Sun's reference implementation?
2. If so, what could I be doing wrong?
Thanks,
Nuthan
I'm looking forward to hear from you.

I believe you can find the right answer here :
http://forum.java.sun.com/thread.jsp?forum=50&thread=307980
Hope that will help.
bye

Temporary Internet Files in Java Application

Hello,
I would like to know how to use "Temporary Internet Files" in a Java application.
When I make a Java Applet that fetch some internet files and launch it from internet browsers,
the fetched files are cached in "C:\Documents and Settings\***\Application Data\Sun\Java\Deployment\cache\6.0"
as "Temporary Internet Files". However when I launch it from Applet Viewer in eclipse or use the
fetching code from a Java application, no files are cached in the directory.
Is it possible to enabling cache with a Java application?
Here is the test code I used.
final String USER_AGENT = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)" ;
String urlString = "http://www.abysse.co.jp/japan/pref/images/hokkaido4.jpg";
URL url = new URL( urlString );
URLConnection conn = url.openConnection();
conn.setDoOutput( true );
conn.setRequestProperty( "User-Agent", USER_AGENT );
DataInputStream in = new DataInputStream(conn.getInputStream());
byte[] jpgBytes = new byte[conn.getContentLength()];
in.readFully(jpgBytes);
FileOutputStream fos = new FileOutputStream("C:\\httpoutap.jpg");
fos.write(jpgBytes);
fos.flush();
fos.close();
fos = null;Edited by: mirror_j on Jan 28, 2009 12:22 AM

mirror_j wrote:
I would like to know what the caching feature is build in.As I said "You cannot enable it as it is not a built in feature."
This is not strictly correct. You can use LinkedHashMap for a simple cache, but its not a persisted cache so wouldn't be very useful for you.
I suggest you look at using ehcache. It free and widely used.

JAVA application packaged as an EAR

we are upgrading our system to Oracle 12i and we have a custom java application that access the Oracle API. As part of this upgrade we have to deploy our JAVA application packaged as an EAR file to OC4J that comes with Oracle EBS. All we need is sequence of steps/ some document that will help us deploy our JAVA application(EAR file) to OC4J server.
1. Can we create another instance of OC4j in Oracle 12i(12.1.3)?
2. Will there be any integrity issue if we deploy ear file to Oacore/Forms/OAFM oc4j instance integrated with R12? or Do we need to create a new instance?
3. I was told by the support engineer that there is no EM console for oc4j integrated with R12, so is there any script provided by oracle to do any ear deployment?

1. Can we create another instance of OC4j in Oracle 12i(12.1.3)?
2. Will there be any integrity issue if we deploy ear file to Oacore/Forms/OAFM oc4j instance integrated with R12? or Do we need to create a new instance?I do not think it is supported -- Please log a SR to confirm with Oracle support.
3. I was told by the support engineer that there is no EM console for oc4j integrated with R12, so is there any script provided by oracle to do any ear deployment?Please see (Deploying a New Forms .ear File in Oracle Applications Release 12 [ID 397174.1]).
Thanks,
Hussein

Different languages used while uploading file from java Application

Hi everybody,
i have a problem with multiple languages , let me clear you the question, i were developing a java application using spring ,hibernate frame works, so i got a problem while uploading a file with chinees language or other
it was saving with different format other than chiness in the database, can any one help me out ... i need the exact language when i upload the files,and when i get the data from DataBase which is in chinees language is '걨' going to be like as '???'
thank you very much

Santhosh_25 wrote:
using utf-8 characterSet, but its not showing properly
thank youOkay.. the problem with your browser settings.. (not sure)..
In firefox try to set character encoding...
go to View--->Character Encoding--->Unicode (UTF-8)..
In IE
go to View--->Encoding-->More-->Unicode (UTF-8)
set this and try.

My file upload java application working fine in tomcat 7 but not working in weblogic 11

Hi All,
My file upload java application successfully run in tomcat 7 . But I could not run it in Weblogic 11. Getting following error message . Please help.
Please contact your administrator.org.springframework.beans.NullValueInNestedPathException: Invalid property 'fileData[0]' of bean class [com.techm.util.UploadItem]: Cannot access indexed value in property referenced in indexed property path 'fileData[0]': returned null
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:681)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:651)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:78)
at org.springframework.validation.DataBinder.applyPropertyValues(DataBinder.java:587)
at org.springframework.validation.DataBinder.doBind(DataBinder.java:489)
at org.springframework.web.bind.WebDataBinder.doBind(WebDataBinder.java:149)
at org.springframework.web.bind.ServletRequestDataBinder.bind(ServletRequestDataBinder.java:110)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.doBind(AnnotationMethodHandlerAdapter.java:566)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:213)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:132)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:326)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:313)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:324)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:163)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

What version of spring are you using in tomcat?
What version of WLS are you using.
What JDK are you using in both environments?
Is the issue random? or can you reproduce it at will?
Thanks
Luz

Code for File upload / down load from WD java application

Hi experts ,
I am creating a WD java application , I want to add Picture upload and piucture download ( from / To ) KM . I also want to specify the path ( where it has to be uploaded in KM ) and picture name . can i get any code so that i can use it in WD application .
Regards
Abhay

First you need to make sure your web dynpro application has permissions to access the file in the first place, but you could use the standard java.io.File class:
File file = new File("/path/file.sh");
file.setExecutable(false);
file.setReadable(false);
file.setWritable(false);

File Upload from a desktop java application

Hi,
what I want to achieve is, to upload a pipe-delimited text file from my desktop java application to my hosting server, and then on the server, I have a PHP page that would parse this file and insert records to the database.
so, on the server, I can enable write access on the folder which I want to upload the file to,
but how do I upload a file from my desktop application.
Thanks

HttpURLConnection conn = (HttpURLConnection) _url.openConnection();this code open a http connection, and what is left is to fill in http protocol things (e.g. content type, content length, POST/PUT or whatever method...etc). after you set the correct request header then open a output stream and pass your files and flush the connection then close it.... in theory (never tried sending files, only done handling POST http form requests with it but it shouldn't be too much different when it is http protocol)
you may want to install Fiddler2 into your browser, it can filter out the browser outgoing and incomign information and you can take a little read in their header and see how they interact with each other

Java Exception after File Upload while retreiving using Filepath

Hello everyone,
I am performing the following steps:-
1) I am uploading a file from my local File system (D:/ a.XML) using FileUpload UI Element in Web Dynpro.
2) In the OnActionMethod of the View, I am trying to get the content of the file using the Filepath (D:/ a.XML).
But I am getting a Java Exception "No Such File or Directory" after deploying the archive and run on to the remote server.
The Exception is not a Web Dynpro Runtime Exception. But I am able to catch it in the try, catch block of the Java code.
Do I need the file to be present in the server as well. What is the Solution? Please advise me about, where is the content of the uploaded XML file stored and how can it be retrieved.
How can I retrieve the content of the file using a valid file path, because my method which will open the uploaded file requires argument as a filepath. Please suggest about this problem. I would be very thankful for your help.
Kind Regards,
Phani.
Edited by: Armin Reichert on Apr 18, 2008 2:43 PM

Hi Ayyaparaj,
Please have a look at the code that I am using for my application. I am getting the exception method after the load method i.e after this line of code "msgMgr.reportSuccess("\n\nInit0\n\n");". The exception that I am getting is "Invalid Stream Header".
public void onActionMaximalJoin(
      com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent)
    // @@begin onActionMaximalJoin(ServerEvent)
    MessageManager msgMgr = (MessageManager) wdThis.wdGetAPI().getComponent()
        .getMessageManager();
    InputStream text = null;
    int temp = 0;
    try
      File file = new File(wdContext.currentContextElement().getUploadXML()
          .getResourceName().toString());
      FileOutputStream op = new FileOutputStream(file);
      if (wdContext.currentContextElement().getUploadXML() != null)
        text = wdContext.currentContextElement().getUploadXML().read(false);
        while ((temp = text.read()) != -1)
          op.write(temp);
      op.flush();
      op.close();
      String path = file.getAbsolutePath();
      wdComponentAPI.getMessageManager().reportSuccess(path);
      Ontology ontology = new Ontology();
      msgMgr.reportSuccess("\n\nInit0\n\n");
      ontology = Ontology.load(path);
      Lexicon mainLexicon = ontology.getMainLexicon();
      msgMgr.reportSuccess("\n\nInit1\n\n");
      text = null;
      temp = 0;
      File file1 = new File(wdContext.currentContextElement().getUploadGraph1()
          .getResourceName().toString());
      FileOutputStream op1 = new FileOutputStream(file1);
      if (wdContext.currentContextElement().getUploadGraph1() != null)
        text = wdContext.currentContextElement().getUploadGraph1().read(false);
        while ((temp = text.read()) != -1)
          op1.write(temp);
      op1.flush();
      op1.close();
      String path1 = file1.getAbsolutePath();
      wdComponentAPI.getMessageManager().reportSuccess(path1);
      CG cg1 = new CG();
      msgMgr.reportSuccess("\n\nInit2\n\n");
      cg1 = CG.load(path1);
      text = null;
      temp = 0;
      File file2 = new File(wdContext.currentContextElement().getUploadGraph2()
          .getResourceName().toString());
      FileOutputStream op2 = new FileOutputStream(file2);
      if (wdContext.currentContextElement().getUploadGraph2() != null)
        text = wdContext.currentContextElement().getUploadGraph2().read(false);
        while ((temp = text.read()) != -1)
          op2.write(temp);
      op2.flush();
      op2.close();
      String path2 = file1.getAbsolutePath();
      wdComponentAPI.getMessageManager().reportSuccess(path2);
      CG cg2 = new CG();
      msgMgr.reportSuccess("\n\nInit3\n\n");
      cg2 = CG.load(path2);
      CG maximalJoinResult = (CG) cg1.maximalJoin(cg2);
      StringBuffer output = new StringBuffer();
      output.append(maximalJoinResult.toString(mainLexicon));
      msgMgr.reportSuccess("\n\nInit4\n\n");
      System.out.println(output.toString());
      msgMgr.reportSuccess("\n\nInit5\n\n");
      msgMgr.reportSuccess(output.toString());
      msgMgr.reportSuccess("\n\nInit6\n\n");
    catch (Exception e)
      msgMgr.reportSuccess(e.getMessage());
    // @@end
Please advise me if you find any mistake.
Edited by: Armin Reichert on Apr 9, 2008 1:27 PM

Remove link for uploaded files in application

Hi all,
I've been following the tutorial on how to upload and download files in application at http://download-uk.oracle.com/docs/cd/B32472_01/doc/appdev.300/b32469/up_dn_files.htm. I have now created my own table which stores the uploaded files and can download them successfully. I would now like to add the ability to delete these files within the application and was wondering what the best way of doing this was?
I would like to add another column to the displayed report with a 'Remove file' link for each listed file, which when clicked would delete the file from the table. I've already tried using a similar method to the one used to upload the files (instead of uploading the file, the called procedure deletes it from the table using the specified ID), but this causes the application to display a blank page when the link is clicked, which I dont want (but does delete the file).
I would appreciate any suggestions.
Regards,
Dave

Dave,
See the login page:
http://htmldb.oracle.com/pls/otn/f?p=31517:101
There are details on how to access the application builder, where you can see how the
setup of that download, delete, upload application has been done.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://htmldb.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

How to upload file from Application Server?

Dear Friends,
How to upload file from Application Server?
Plz. with example...
Regards,
Dharmesh

hi,
check the code for upload from application server.
tables: kna1.
types: begin of s_file,
         customer type kna1-kunnr,
         country type kna1-land1,
         name     type kna1-name1,
         region   type kna1-regio,
       end of s_file.
*--Internal tables
data: it_file type s_file occurs 0 with header line.
*-- Selection screen
selection-screen: begin of block b1 with frame title text-001.
parameter: p_file type rlgrap-filename default 'C:/customer.txt'
obligatory.
selection-screen: end of block b1.
*-- At selection screen
at selection-screen on value-request for p_file.
perform file_help using p_file.
*-- Process File
start-of-selection.
perform upload_file using p_file.
*-- write File data to o/p
end-of-selection.
perform write_data.
*&      Form file_help
form file_help using    p_p_file.
data: l_filepath type ibipparms-path.
call function 'F4_FILENAME'
EXPORTING
PROGRAM_NAME        = SYST-CPROG
DYNPRO_NUMBER       = SYST-DYNNR
FIELD_NAME          = ' '
   importing
     file_name           = l_filepath
p_p_file = l_filepath.
endform.                    " file_help
*&      Form upload_file
form upload_file using    p_p_file.
call function 'WS_UPLOAD'
   exporting
     filename                      = p_p_file
     filetype                      = 'DAT'
IMPORTING
FILELENGTH                    =
    tables
      data_tab                      = it_file
   exceptions
     conversion_error              = 1
     file_open_error               = 2
     file_read_error               = 3
     invalid_type                  = 4
     no_batch                      = 5
     unknown_error                 = 6
     invalid_table_width           = 7
     gui_refuse_filetransfer       = 8
     customer_error                = 9
     no_authority                  = 10
     others                        = 11
if sy-subrc <> 0.
    message i001.
endif.
endform.                    " upload_file
*&      Form write_data
form write_data .
loop at it_file.
    write:/ it_file-customer, it_file-country, it_file-name,
            it_file-region.
endloop.
endform.
regards,
keerthi.

Problem while uploading file from application server to internal tab in BG

Hi all,
When i see the file in application server.data is like this
#################00\);_(#####}#-#}###############################00\);_(#####}#-#}###############################00\);_(*#####}#-#}#########
###################}###}#############A#############???#00\);_(*#################;_(@_) ########???#        ########???#        ########???###
#######???#########}###}#############)##############}##00\);_(*#################;_(@_) ############        ############        ##############
###################}#A#}#############:##############}##00\);_(#################;_(@_) }###}##############################00\);_(*##########
#######???#########}#-#}#############F#################00\);_(#####}###}#############@#################00\);_(#################;_(@_) #####
###################}#-#}#############3#################00\);_(#####}#U#}#############E#################00\);_(#################;_(@_) #####
Because the csv which is uploaded has dropdowns and some formattings.
when download from tcode cg3y i am getting correct file
When try to use open(binary mode) and read dataset i getting data as it is (junk).
i need to process in background.
Any help.
Rhea.

upload file to string format
begin of ty_tab,
string type char200,
end of ty_tab.
loop at ty_tab into string
use statement replace string into tab deliminated fromat(particular occurance in string)
now call class to break string at tab into fields
endloop.
DATA : BEGIN OF i_data OCCURS 0,
        data(200)    TYPE c,       "To hold Upload file data
       END OF i_data.
OPEN DATASET v_str FOR INPUT
                          IN TEXT MODE
                          ENCODING DEFAULT IGNORING CONVERSION ERRORS.
    IF sy-subrc EQ 0.
      DO.
*Read a line from input file
        READ DATASET v_str INTO i_data-data.
        IF sy-subrc NE 0.
          EXIT.
        ENDIF.
*Append record to an internal table
        APPEND i_data.
        CLEAR: i_data.
      ENDDO.
*Close the file
      CLOSE DATASET v_str.
*---Start of inserti
LOOP AT i_data.
        REPLACE ALL OCCURRENCES OF '"' IN i_data WITH '#'.
        SPLIT i_data AT cl_abap_char_utilities=>horizontal_tab
                            INTO i_doc-pvaudt
                                 i_doc-pvpate
                                 i_doc-vecatc
                                 i_doc-vhvend
                                 i_doc-vhidt8
                                 i_doc-vhinvn
                                 i_doc-vhhexp
                                 i_doc-vhiref.

How to call function in included dll file through java application.

Hi All,
i am trying to create an java application which call c# functions using JNI. i am completed with the code and it is running fine when i tried to run from netbeans IDE. But when i tried from Calculator.jar file, first time it throws this error:
F:\JavaProjects\Calculator\dist>Java -jar Calculator.jar
Exception in thread "main" java.lang.UnsatisfiedLinkError: no CSharpClient in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at calculator.CalculatorApp.<clinit>(CalculatorApp.java:20)
After that i included that dll file in the cuurent directory. And compiled and tried to run, it throws an unexpected error:
F:\JavaProjects\Calculator\dist>Java -jar Calculator.jar
*# An unexpected error has been detected by Java Runtime Environment:*
*# Internal Error (0xe0434f4d), pid=2640, tid=3700*
*# Java VM: Java HotSpot(TM) Client VM (1.6.0_02-b06 mixed mode, sharing)*
*# Problematic frame:*
*# C [kernel32.dll+0x12a5b]*
*# An error report file with more information is saved as hs_err_pid2640.log*
*# If you would like to submit a bug report, please visit:*
*# http://java.sun.com/webapps/bugreport/crash.jsp*
Anyone have idea how to solve this error.
Thanks in advance.

This error is created whenever things go sour on the native side. The first thing you can try, and I assume you are using a Java<->C++<->C# bridge which includes two dlls, one created by C++ and another by C#. Is to make sure that the C# dll is compiled using /t:module switch during compilation.
If you are using VS2008, or VS2005, you can add a post build syntax like:
csc /t:module /out:"$(ProjectDir)$(OutDir)YourModule.dll" "$(ProjectDir)YourCSfile.cs"
Hope this helps! If not, ensure first that the native code works by creating a native test app for it.

Java Application + Uploading Files

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