How to download a java class from database to file system

Hi All,
We have one invalid java class in database. We need to verify what is the functionality of this class. So we planned to download this class to file system. Then we need decompile it to source. But we are not able to identify the right command to download the java class from database.
Please suggest me if any possible ways to acheive this.
Thanks in advance....

http://www.sql.ru/forum/actualthread.aspx?tid=747308
http://download.oracle.com/docs/cd/B19306_01/java.102/b14187/appendixa.htm
PROCEDURE export_source(name VARCHAR2, schema VARCHAR2, blob BLOB)
PROCEDURE export_class(name VARCHAR2, schema VARCHAR2, blob BLOB)
PROCEDURE export_resource(name VARCHAR2, schema VARCHAR2, blob BLOB)
create table scott.t (id number, b blob);
declare
    b blob;
    begin
       dbms_lob.createTemporary(b, true, dbms_lob.CALL);
       dbms_java.export_class('sun/net/www/ParseUtil', user, b);
      dbms_output.put_line('length(b): '||length(b));
      insert into "SCOTT"."T" values(1,b);
    end;

Similar Messages

Download jar / java class from database

Hello,
I have database 10.2.0.3 with one procedure that calls some java class loaded in database. Unfortunately I don't have source code of that java class or whole jar that was loaded into database.
I would like to download it from database and try to decompile it.
Can you tell me how can I download some java classes from database?
Everything I know is only the name of some java class that is used in one PL/SQL procedure (CREATE OR REPLACE PROCEDURE ..... AS LANGUAGE JAVA)
Thanks for some tips

Can you tell me how can I download some java classes from database?You can use dbms_java.export_class procedure to export class as blob, then just save the blob to file.

How to call a Java class from another java class ??

Hi ..... can somebody plz tell me
How to call a Java Class from another Java Class assuming both in the same Package??
I want to call the entire Java Class (not any specific method only........I want all the functionalities of that class)
Please provide me some slotuions!!
Waiting for some fast replies!!
Regards
Smita Mohanty

Hi Smita,
you just need to create an object of that class,thats it. Then you will be able to execute each and every method.
e.g.
you have developed A.java and B.java, both are in same package.
in implementaion of B.java
class B
            A obj = new A();
             //to access A's methods
             A.method();
            // to access A's variable
            //either
           A.variable= value.
           //or
           A.setvariable() or A.getvariable()

How to: Calling a java class from asp?

Hello all i have a problem to call a Java class from a asp
Here what I do:
[JavaSays.java]
package JavaCom;
public class JavaSays
public String Hello()
return "Hello world" ;
then
javareg /register /class:JavaCom.JavaSays /progid:JavaCom.JavaSays
md c:\winnt\Java\TrustLib\JavaCom
copy JavaSays.class c:\winnt\Java\TrustLib\JavaCom
--Asp
--TestJavaCom.asp
<html>
<body>
<h1>Simple Test</h1>
<% Set ObjPrueba = Server.CreateObject("JavaCom.JavaSays") %>
<%= ObjPrueba.SimpleFn(5) %>
<hr>
</body>
</html>
when i try to run my asp
it tell me that:
Error type : Server Objetc, ASP 0177 (0x80040111)
ClassFactory can not find the class
any idea???
thanks.

I think the OP wants to use a class file as a COM object. I've never done that, but this URL:
http://support.microsoft.com/default.aspx?scid=KB;EN-US;q167941&
seems to indicate that you should have placed the class file into the c:\winnt\Java\TrustLib\ sub directory before you ran the JAvaReg bat file - I would re-run JavaReg and bounce IIS and associated services and see if that works out.
Good Luck
Lee

How to call a java class in a bat file

Hi
I need to call a Test.java class in a bat files .It refer .DOM.jar
in C:/url; How do i call the java class i need the syntax
Thanks lot

assuming lanch.bat, Test.class and DOM.jar are in c:\url
assuming %JAVA_HOME% is defined (else substitue it with your java installation directory)
here is the content of launch.bat:
cd C:/url (or cd c:\url ) (or cd c: followed by cd url)
%JAVA_HOME%\bin java -classpath .;DOM.jar Test
hop that'd help,
marvinrouge

How to run a java class from a shell script with passing arguments

hi,
I have a jar with all the required classes. I was using ant to run the classes i needed.
But now i want to use a shell script to run the class, also the class accepts some arguments so when script is run it should accept arguments.
So can any one tell me how to set class paths, jar location and call the required class from shell script or batch file with passing arguments to it.
Thanks in advance.

Let's say that the order of arguments is as below
1. Jar file name
2. Classpath
Your shell script would look like this
java -cp $CLASSPATH:$2 -jar $1 I am assuming that your jar file has the required main-class entry in its manifest. Note that $1...$9 represent the arguments to this shell script.
The same goes for a batch file
java -cp %CLASSPATH%;%2 -jar %1

How to access a Java class from view controller?

Hi All,
I have created a Test.java class file from Navigator view under
Src --> Packages --> com.sap.MyProject.
When I try to access the Test class from view controller,
I getting this error "Test cannot be resolved or is not a type".
How do I fix this?
Thanks
Sundar

Hi,
I have created a Test.java class file from Navigator view under
Src --> Packages --> com.sap.MyProject.
After this you can goto the context of your View and define the VA goto the type of VA and click on the right side button and go to java native type and type your java file name click you name .
that means the jave file s assigned to VA.
U can utilize thrut that VA.
Thanks,
Lohi.

How to run a java class from its package directory

Hi,
I hope someone can help me on the following ....
Let say I have a Test.java class with the package definition: "package com.ams.eai.mq.fileAdapter;". I compiled the class into the directory c:\myJava\client\com\ams\eai\mq\fileAdapter. I have c:\myJava\client specified in my classPath and Path. Why is it when I go to the mentioned directory and enter at the prompt >java Test, I get java.lang.NoClassDefFoundError: test (wrong name: com/ams/eai/mq/fileAdapter/test).
What directory am I supposed to be in to run my Test class ? Is there some other path that I need to specify but didn't ?
Thanks for any help.

You have to type out the fully qualified class name:
java com.ams.eai.mq.fileAdapter.Test
Even if you had the entire dir structure, "c:\myJava\client\com\ams\eai\mq\fileAdapter" in your classpath you'd still have to fully qualify the name of the "Test" class. What if there was another class named "Test" in a different package in your CP? The VM would have no way of knowing which "Test.class" you'd want to run.

Write PDF files from database to file system

Hi,
I have a requirement of writing PDF files that are stored in Oracle 10g's BLOB column to the FILE SYSTEM using PL/SQL (Not java or any external stored Proc), since i need to write a shell script which will load the PDF files from database on a timely basis.
Could anyone suggest me the way of executing this?
Environment: Oracle 10G (10.2.0.1.0) with Windows 2003 server.
Regards,
Nagarjun.

You could try to use the UTL_FILE package that is able to read/write text and binary data in a file located on the box hosting the database instance.

Execute java class from a batch file called from runtime.exec

Hi.
I don´t know if this question fits here.
I wan´t to execute a batch file (on Win XP) with runtime.exec. That batch file will execute another java program.
I have the following code:
Resolutor.java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class Resolutor {
      * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          Runtime r = Runtime.getRuntime();
          //String[] command = { "cmd.exe", "/C",".\\lanzar.bat .\\ .\\ 001.res:001.dtt" };
          String[] command = { "cmd.exe", "/C",".\\tarea\\lanzar.bat " + args[0] + " " + args[1] + " " + args[2]};
          try {
               //Process proceso = Runtime.getRuntime().exec("lanzar.bat");
               Process proceso = Runtime.getRuntime().exec(command);
               InputStream stderr = proceso.getErrorStream();
            InputStreamReader isr = new InputStreamReader(stderr);
            BufferedReader br = new BufferedReader(isr);
            String line = null;
            System.out.println("<ERROR>");
            while ( (line = br.readLine()) != null)
                System.out.println(line);
            System.out.println("</ERROR>");
               int exitVal = proceso.waitFor();
               System.out.println("EXITVAL: " + exitVal);
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (InterruptedException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
}lanzar.bat
java Lanzador %1 %2 %3Lanzador.java
import java.util.Vector;
public class Lanzador {
      * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          Repetitiva rpt=new Repetitiva();
          String rutaFicheros=args[0];
          String rutaResultado=args[1];
          String[] ficheros=args[2].split(":");
          Vector<String> ficheroDatos=new Vector<String>();
          for(int i=0;i<ficheros.length;i++){
               ficheroDatos.add(ficheros);
               System.out.println(ficheros[i]);
          System.out.println("RUTA DE FICHEROS: " + rutaFicheros);
          System.out.println("RUTA DE RESULTADOS: " + rutaResultado);
          System.out.println("CALCULAR");
          rpt.setRepetitiva(ficheroDatos, rutaFicheros, rutaResultado);
          rpt.calcular();
}I´ve got Resolutor.class in /res and the other two files (and the rest of the files for running) in /res/tarea.
If I execute /res/tarea/lanzar.bat from the command line everything works fine, it calls java and runs lanzador without problem.
The problem comes when I try to execute the batch file via Resolutor.class. It executes the batch file without problem, but it throws a *java.lang.NoClassDefFoundError: Lanzador* when launching the new java application.
Any ideas of how can I solve that problem. (It must do it via batch file).

Well, I tried putting in the bat file java -classpath .\tarea Lanzador %1 %2 %3 and didn´t work.
I ve tried the bat modification, and the directory in x.txt is k:\res instead of k:\res\tarea.
I´ve tried to modifiy it to java .\tarea\Lanzador and didn´t work so I have put a cd like the following and it appears to work.
cd tarea
java Lanzador %1 %2 %3Thanks for the replies.

How to create a Java Client from a wsdl file...

Hi,
I am looking for an available option for calling a Cobol unit from a Java application( front end). I've used the MicroFocus tool for creating a wsdl file from our Cobol unit.. Now i want to use this wsdl file for creating a Java Client..
Can any one suggest a suitable solution (software that makes use of the already existing wsdl file and generate a Java Client for that) ASAP....
Thanks,
roopa

Hey you can create java client using Eclispe or WSAD or far that matter any other IDE. crate a project save the WSDLs in a package. Right click on WSDL goto webservice option. From there you can generate client.
cheers,
sapan
Is it still open ?
cheers,
sapan
Edited by: sapan on Feb 25, 2009 1:17 AM

How to create java classes when multiple xsd files with same root element

Hi,
I got below error
12/08/09 16:26:38 BST: [ERROR] Error while parsing schema(s).Location []. 'resultClass' is already defined
12/08/09 16:26:38 BST: [ERROR] Error while parsing schema(s).Location []. (related to above error) the first definition appears here
12/08/09 16:26:38 BST: Build errors for viafrance; org.apache.maven.lifecycle.LifecycleExecutionException: Internal error in the plugin manager executing goal 'org.jvnet.jaxb2.maven2:maven-jaxb2-plugin:0.7.1:generate': Mojo execution failed.
I tried genarate java classes from multiple xsd files, but getting above error, here in .xsd file i have the <xe: element="resultClass"> in all .xsd files.
So I removed all .xsd files accept one, now genarated java classes correctly. but i want to genarte the java classes with diffrent names with out changing .xsd
Can you please tell me any one how to resolve this one......
regards
prasad.nadendla

Gregory:
If you want to upload several Java classes in one script the solution is .sql file, for example:
set define ?
create or replace and compile java source named "my.Sleep" as
package my;
import java.lang.Thread;
public class Sleep {
public static void main(String []args) throws java.lang.InterruptedException {
if (args != null && args.length>0) {
int s = Integer.parseInt(args[0]);
Thread.sleep(s*1000);
} else
Thread.sleep(1000);
create or replace and compile java source named "my.App" as
package my;
public class App {
public static void main(String []args) throws java.lang.InterruptedException {
System.out.println(args[0]);
exit
Then the .sql file can be parsed using the SQLPlus, JDeveloper or SQLDeveloper tools.
HTH, Marcelo.

Re: Using simple java class in an .war file.

Hi All,
I have a simple question,
Can I access an simple java class from a jsp file that I have written by putting it in the "classes" folder?? What entry should go in the web.xml file?
Here is my directory structure:
sample.war
|
----test.jsp <file>
|
----WEB-INF <folder>
| |
| ----classes<folder>
| | |
| | ----simpleJavaClass.class<file>
| |
| ----lib<folder>
| |
| ----web.xml
I want to access the simpleJavaClass.class from the jsp test.jsp.
Please suggest.
Thanks and regards
Ayusman

It is possible to access the class in u r classes folder from u r jsp file.
For example
<%@ page import="com.test.service.PricingSolution,
com.test.core.PhoneNumber
%>
<% PricingSolution solution = (PricingSolution)session.getAttribute("solution"); %>
This is a simple scriplet example. You do the same using jstl tags also.
--Shinoy

How to call Java class from Forms 6i?

Hi friends,
I need to call a Java class from my Forms 6i application.
(It runs under WIndows XP. It's a client/server application and I have only the client and the Form builder installed on my PC)
I don't know almost anything about Java's world so your help would be very useful for me.
Could you tell me exactly what i have to do?
I've read in metalink several Notes, but they supposed that the Java architecture is already installed in the computer.... I only have the default installation of Developer 6i... so I would need to know:
- How to install/configure the neccesary to execute Java classes without problem
- How to invoke the .class from Forms 6i.
Thanks a lot
Jose.

And also this one:
Problem Description
Installed Forms 6i Rel 2 on a MS Windows machine. When trying to Import the Java
Classes getting the errors
PDE-UJI0001 Failed to create the JVM
Solution Description
You need to to install JDK 1.2.2 to run the Java Importer. And set the PATH's
and classpath's correctly.
Explanation
1. Download and install the JDK 1.2.2.
Possibly available at: http://java.sun.com/products/archive/
2. Assuming the JDK 1.2.2 is installed in c:\jdk1.2.2 directory and the JRE in
C:\PROGRA~1\JAVASOFT\JRE\1.2 directory; ORACLE_HOME=C:\Dev6iR2.
Set the PATH to
set PATH=c:\jdk1.2.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin\classic;%PATH%
( If you are using ias9i then the JDK 1.2.2 comes with the ias installtion ,
in this case please set the PATH to
D:\ias9i\Apache\jdk\bin;D:\ias9i\Apache\jdk\jre\bin;D:\ias9i\Apache\jdk\jre\bin\classic;%PATH% )
3. Set the CLASSPATH to set CLASSPATH=%CLASSPATH%;C:\Dev6iR2\TOOLS\COMMON60\JAVA\IMPORTER.JAR;.
(If you do not set the CLASSPATH correctly you will get the error
PDE-UJI002 Unable to find the required java importer classes)
4. Now run the Forms Builder by using the command.
C:\Dev6iR2\bin\ifbld60.exe
Now the Java Importer Should Run fine.
Francois

How do I call a simple java class from a bpel process?

Hi.
In JDeveloper 10.1.4.3.0 I've created a simple java class that does an ftp get operation followed by an unzip. The class uses some 3rd part libraries (jars).
I want to use a simple bpel process to schedule a daily execution of this java class, and deploy it all to our SOA-server, - and was looking into using the <bpelx:exec> function.
The java class and the bpel process is all stored in the same JDeveloper project.
How do I put this together so that both my java class and the necessary jars are available to the bpel process?
I've looked into the JavaExecSample.bpel, and it's says something about "...the class com.otn.samples.javaexec.CreditCalculator is locally packaged with this BPEL process".
How do I do that?
Can I make it and test it all locally from my workstation (only JDeveloper installed, I guess there's nothing that can execute the bpel code?), or do I have to compile class etc (make war-file?) and deploy to SOA server (BPEL-INF/lib or classes?) before anything can be tested?
(I guess all this is simple, once you know how, but being a newbie to this I need a shove in the right direction :-)
Regards,
-Haakon-

To create a java class and dependent jars inside the BPEL process project you need to do the following:
1. Right click on your BPEL process project and select New and then Java Class from the Items.
2. Make the BPEL process project, JDeveloper would compile the java classes and add them into the BPEL suite case jar, see the output folder and check the BPEL suite case jar file for java classes and dependent jars.
You can test your Java classes from JDeveloper IDE, no need to deploy the classes on SOA server. When you make the BPEL project it compiles .bpel files and Java classes. You can test your classes once .bpel file and java classes compiled successfully.
Regards,
Dharmendra
http://soa-howto.blogspot.com

How to download a java class from database to file system

Similar Messages

Maybe you are looking for