Java function calls from JSTL

I'm working on an application where the original designers have put an escape character preceding every single quote when entering data into a DB.
Ex: A user enters O'Riely, and it gets put into the DB as O\'Reily.
The problem is that when using JSTL to retrieve the data, the escape character remains. I've got a Java function that removes this escape character for some dynamically created pages and tables, however I'm not sure how to remove the escape character from simple JSTL retrievals.
Does anyone have an idea how this can be done? Or if it's possible to call a Java function from a JSTL call in a JSP?
Thanks, in advance.

That's likely just a dummy function to avoid SQL injections.
At the data layer, rather use PreparedStatement [1] instead of Statement to insert unchanged data. Sun has a nice tutorial on that [2]. Or use an ORM like Hibernate [3] to persist data in DB.
[1] http://java.sun.com/j2se/1.5.0/docs/api/java/sql/PreparedStatement.html
[2] http://java.sun.com/docs/books/tutorial/jdbc/basics/prepared.html
[3] http://www.hibernate.org

Similar Messages

Java function call from Trigger in Oracle

Moderator edit:
This post was branched from an eleven-year-old long dead thread
Java function call from Trigger in Oracle
@ user 861498,
For the future, if a forum discussion is more than (let's say) a month old, NEVER resurrect it to append your new issue. Always start a new thread. Feel free to include a link to that old discussion if you think it might be relevant.
Also, ALWAYS use code tags as is described in the forum FAQ that is linked at the upper corner of e\very page. Your formulae will be so very much more readable.
{end of edit, what follows is their posting}
I am attempting to do a similar function, however everything is loaded, written, compiled and resolved correct, however, nothing is happening. No errors or anything. Would I have a permission issue or something?
My code is the following, (the last four lines of java code is meant to do activate a particular badge which will later be dynamic)
Trigger:
CREATE OR REPLACE PROCEDURE java_contact_t4 (member_id_in NUMBER)
IS LANGUAGE JAVA
NAME 'ThrowAnError.contactTrigger(java.lang.Integer)';
Java:
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "ThrowAnError" AS
// Required class libraries.
import java.sql.*;
import oracle.jdbc.driver.*;
import com.ekahau.common.sdk.*;
import com.ekahau.engine.sdk.*;
// Define class.
public class ThrowAnError {
// Connect and verify new insert would be a duplicate.
public static void contactTrigger(Integer memberID) throws Exception {
String badgeId;
// Create a Java 5 and Oracle 11g connection.
Connection conn = DriverManager.getConnection("jdbc:default:connection:");
// Create a prepared statement that accepts binding a number.
PreparedStatement ps = conn.prepareStatement("SELECT \"Note\" " +
"FROM Users " +
"WHERE \"User\" = ? ");
// Bind the local variable to the statement placeholder.
ps.setInt(1, memberID);
// Execute query and check if there is a second value.
ResultSet rs = ps.executeQuery();
while (rs.next()) {
badgeId = rs.getString("Note");
// Clean up resources.
rs.close();
ps.close();
conn.close();
// davids badge is 105463705637
EConnection mEngineConnection = new econnection("10.25.10.5",8550);
mEngineConnection.setUserCredentials("choff", "badge00");
mEngineConnection.call("/epe/cfg/tagcommandadd?tagid=105463705637&cmd=mmt%203");
mEngineConnection.call("/epe/msg/tagsendmsg?tagid=105463705637&messagetype=instant&message=Hello%20World%20from%20Axium-Oracle");
Edited by: rukbat on May 31, 2011 1:12 PM

To followup on the posting:
Okay, being a oracle noob, I didn't know I needed to tell anything to get the java error messages out to the console
Having figured that out on my own, I minified my code to just run the one line of code:
// Required class libraries.
import java.sql.*;
import oracle.jdbc.driver.*;
import com.ekahau.common.sdk.*;
import com.ekahau.engine.sdk.*;
// Define class.
public class ThrowAnError {
     public static void testEkahau(Integer memberID) throws Exception {
     try {
          EConnection mEngineConnection = new EConnection("10.25.10.5",8550);
     } catch (Throwable e) {
          System.out.println("got an error");
          e.printStackTrace();
}So, after the following:
SQL> {as sysdba on another command prompt} exec dbms_java.grant_permission('AXIUM',"SYS:java.util.PropertyPermission','javax.security.auth.usersubjectCredsOnly','write');
and the following as the user
SQL> set serveroutput on
SQL> exec dbms_java.set_output(10000);
I run the procedure and receive the following message.
SQL> call java_contact_t4(801);
got an error
java.lang.NoClassDefFoundError
     at ThrowAnError.testEkahau(ThrowAnError:13)
Call completed.
NoClassDefFoundError tells me that it can't find the jar file to run my call to EConnection.
Now, I've notice when I loaded the sdk jar file, it skipped some classes it contained:
c:\Users\me\Documents>loadjava -r -f -v -r "axium/-----@axaxiumtrain" ekahau-engine-sdk.jar
arguments: '-u' 'axium/***@axaxiumtrain' '-r' '-f' '-v' 'ekahau-engine-sdk.jar'
creating : resource META-INF/MANIFEST.MF
loading : resource META-INF/MANIFEST.MF
creating : class com/ekahau/common/sdk/EConnection
loading : class com/ekahau/common/sdk/EConnection
creating : class com/ekahau/common/sdk/EErrorCodes
loading : class com/ekahau/common/sdk/EErrorCodes
skipping : resource META-INF/MANIFEST.MF
resolving: class com/ekahau/common/sdk/EConnection
skipping : class com/ekahau/common/sdk/EErrorCodes
skipping : class com/ekahau/common/sdk/EException
skipping : class com/ekahau/common/sdk/EMsg$EMSGIterator
skipping : class com/ekahau/common/sdk/EMsg
skipping : class com/ekahau/common/sdk/EMsgEncoder
skipping : class com/ekahau/common/sdk/EMsgKeyValueParser
skipping : class com/ekahau/common/sdk/EMsgProperty
resolving: class com/ekahau/engine/sdk/impl/LocationImpl
skipping : class com/ekahau/engine/sdk/status/IStatusListener
skipping : class com/ekahau/engine/sdk/status/StatusChangeEntry
Classes Loaded: 114
Resources Loaded: 1
Sources Loaded: 0
Published Interfaces: 0
Classes generated: 0
Classes skipped: 0
Synonyms Created: 0
Errors: 0
.... with no explanation.
Can anyone tell me why it would skip resolving a class? Especially after I use the -r flag to have loadjava resolve it upon loading.
How do i get it to resolve the entire jar file?
Edited by: themadprogrammer on Aug 5, 2011 7:15 AM
Edited by: themadprogrammer on Aug 5, 2011 7:21 AM
Edited by: themadprogrammer on Aug 5, 2011 7:22 AM
Edited by: themadprogrammer on Aug 5, 2011 7:23 AM
Edited by: themadprogrammer on Aug 5, 2011 7:26 AM

Java functions call from C++ App

Hi,
I'm new to Java, One of our client have generic APIs for there business logic, those are written in JAVA, now we want to use some of these APIs in C++ application. Can any one suggest/address me the better way to do this?
Thanks in advance.
Thanks,
--Ravi Kiran.

To call Java functions from C++ you need a VM running in your process, and JNI is the interface you need to use in the C++ code.
One of the interfaces in JNI lets you create a VM. You generally only want one VM, so if the application started out in Java, you have a VM already and you don't need to create one.
Note that JNI is really a C <-> Java interface, and usually any C++ code called from Java is C++ 'extern "C"' functions. Java won't know anything about C++ objects. And you use JNI to get C++ to understand Java objects.
Hope this was helpful.

Java function call from C++ Application

I'm new to Java, One of our client have generic APIs for there business logic, those are written in JAVA, now we want to use some of these APIs in C++ application. Can any one suggest/address me the better way to do this?
Thanks in advance.
Thanks
--Ravi

Hi,
There is an API you can use: JNI, the Java Native Interface. It makes it possible to make method calls Java - C/C++ and vice versa.
There are some good books, and a good online tutorial, that can help you get along using JNI.
You'll find the tutorial at: http://java.sun.com/docs/books/tutorial/native1.1/index.html
I recommend you to get a copy each of:
"Core Java2: Volume 1 - fundamentals"
"Core Java2:Volume 2 - advanced features"
... as they cover all basic concepts of Java up to the point of using JNI(!). Try to get the seventh edition as it covers the latest release, JDK 1.5. Both volumes has Hortsmann and Cornell as authors.
"Essential JNI" by Rob Gordon is also a good book, a bit old by now though, but full of good examples.
Hope this helps

Execute Oracle Package Function call from FORTE

Has anyone EVER successfully execute an Oracle Package Function call from FORTE
via " sql execute procedure "?
Here's my question, I am able to execute a stored procedure but hasn't figured
out a way to execute a function which defined in a package. The syntax goes
like this: sql execute procedure <PackageName>.<FunctionName> ( input
input_parm, output output_parm). If anyone EVER successfully execute a
function, please let me know, thanks.

You'll need to provide a column alias for the function call:
select func(val) as alias from dual

Debug java class called from CF?

I'm experiencing different behaviour with a Java class called from a CF page to the same class called directly from Java code.
Is it possible for me to step into the Java class and debug it in CF builder if I attach the correct Java source?
Pressing F5 (step-in) on the line that the method is called just skips straight over.
Regards,
Andy

P5music wrote:
I would like to be able to make a java application that has a GUI that is a rich web page.That's what applets are for.
In this case, this page exists on my system and I can open it with my browser.
This page does many things that are typical of a web page like displaying information and presenting rich and graphical controls
but some of this controls are connected to a java application, launched from the web page or viceversa.I don't get this "launched from the web page" business. Is that a requirement or are you describing an existing system? Or are you describing somebody else's system whose architecture you want to imitate? Or are you using the word "launched" simply to describe the action of starting an applet?
It still isn't clear to me what you are trying to describe. But at any rate if you want a Java program to run in your browser, that's an applet. Note that applets can interact with Javascript code in the page they are embedded in. Or if you want to download a Java application which acts as a separate application, i.e. it still runs when the browser is closed, you can use Web Start for that.

Duration of an Abap Function call from Java using Jco3

Hi guys!
I would like to use this discussion to get some refernces of the duration Timespan of an RFC call from Java to SAP. At the moment, i need at last about 200ms to call the Abap function. I'm just using one simple import and export parameter (so no deep structures). I think that the reason for my poor performance is, that the Java Tool and the SAP instance are not in the same network. So, i hope some of you have some data, how fast an RFC call from Java using Jco can be executed.
greetings, Hannes

Hi Hannes,
I think you have already got the answer to your question - the network set-up you have is probably the bottleneck. Whenever I've worked with Java <-> ABAP and they are in the same network, I've had no performance problems at all.
Does your RFC contain any complex logic or business processes? Are you able to try and call something that does nothing, say it just accepts an input string and returns it straight away as an export. Do you have any scope for testing with your Java tool on the same network as the SAP system?
Cheers,
G.

Applet function call from javascript

Hi,
I'm haveing a problem with accesing applet's functions from Javascript in Mozilla. IE works fine but in Mozilla I get the following error:
Error: document.applets[0] has no properties
The code used is: document.applets[0].test();
The applet has the following 2 tags defined, I don't know if they are necessary here but I'm doing the reverse too (applet functions call javascript).
<PARAM name="MAYSCRIPT" value="Y">
<PARAM name="SCRIPTABLE" value="Y">
If you have any ideea please help.
Thanks

in javascript try document.getElementById("idOfTheApplet")
use object tag instead of applet tag:
     <object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
              height="300" width="450" >
        <param name="code" value="appTest.class" />
        
        <object classid="java:appTest.class"
                height="300" width="450"
                >
          <param name="mayscript" value=Y" />
        </object>
        
      </object>or check out HtmlConverter.exe in the jdk bin dir.

Base64 decode with user defined function called from xslt

I have an xml document which has a segment containing a b64 encoded attachment.
I would like to decode the attachment as i map it.
I would think this could be done by using a java function of some kind being called from the xslt however i have very limited experience in this and none in how to code the decoding.
Anyone have an example ?
Cheers
Jon

>
Jon Vaugan wrote:
> I have an xml document which has a segment containing a b64 encoded attachment.
> I would like to decode the attachment as i map it.
>
> I would think this could be done by using a java function of some kind being called from the xslt however i have very limited experience in this and none in how to code the decoding.
>
> Anyone have an example ?
>
> Cheers
> Jon
yes SDN seems to have an example for you....it may not exactly solve your problem...but yes it not irrelevant.....you just need to do some R&D
/people/farooq.farooqui3/blog/2008/05/22/decode-base64-incoming-encoded-information-in-sap-xipi-using-java-mapping
Regards,
Abhishek

RFC function call from VB Script

I have an RFC enabled function that I need to call from VBScript. I was working through this issue as a BAPI call but after research and RFC not initialized error messages over and over I am coming to think that the issue is not how I was doing it but what I was trying to do with different objects.
I think the issue is that I was trying to call a RFC function with BAPI methods, I didnt understand that there was I difference but now I do. I don't know how to initialize the RFC on the host system and unsure if I even have all of the components on the host system to make these function calls.
The goal here is to call a function that passes 3 paramters and modifies a user object in SAP.

Hello John,
are you using DCOM Connector? I have a VBScript working correctly, using DCOM Connector, and consuming a Z function module defined as RFC.
What's the error message you're getting?
Regards
Michael

Bapi Function call from Crystal reports 2008. import parameters syntax.

Dear,
I have an issue with calling a function directly from Crystal reports (2008) in the R3 system.
(if this belongs in another thread , please add the link if moved !)
I try to get data through function "BAPI_CLASS_GET_CLASSIFICATIONS".
Till now all possible input parameters have no data-result.
I already read other threads stating that 'for example' the Language key needs to be provided in a single character. 'E' in stead of 'EN'.
I also already created a Z-wrap-function that fills out all input parameters 'hardcoded'. This works.
clearly there are som syntax changes in passing the values to R3 when called from Crystal Reports.
Can someone state which syntax has to be followed for numeric fields, for datefields etc. (so when i make these dynamical, I know which syntax should be the outcome of the formula)
in my function that doesn't work I use these selections:
(this function is called in a standard report only calling this function)
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_LANGU_ISO} = "E" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_LANGU_INT} = "E" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.T_CLASS_OBJECTS.OBJECT_TYPE} = "MARA" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.T_CLASS_OBJECTS.OBJECT_KEY} = "000000000000000085" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_CLASSNUM} = "DSWTEST" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_CLASSTYPE} = "001" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_KEY_DATE} = Date (2011, 08, 05)
I already tried other languages or the 'EN' as input.
(I would like to know how the date is passed exaclty to R3.)
The function is of course RFC enabled.
when I call the my Z-function with predefined inputparameters in R3 it does give the wanted result.
FUNCTION ZBAPI_CLASS_GET_CLASSIFICATION.
""Local Interface:
*" TABLES
*"      OBJECT_CLASSIFICATION STRUCTURE BAPI_OBJECT_VALUES
*"      CLASS_OBJECTS STRUCTURE BAPI_CLASS_OBJECTS
data ZOBJECT_CLASSIFICATION type TABLE OF BAPI_OBJECT_VALUES.
data ZCLASS_OBJECTS type TABLE OF BAPI_CLASS_OBJECTS WITH HEADER LINE.
ZCLASS_OBJECTS-OBJECT_KEY = '000000000000000085'.
ZCLASS_OBJECTS-OBJECT_TYPE = 'MARA'.
Append ZCLASS_OBJECTS.
CALL FUNCTION 'BAPI_CLASS_GET_CLASSIFICATIONS'
EXPORTING
    CLASSTYPE                    = '001'
    CLASSNUM                     = 'DSWTEST'
*   KEY_DATE                     = SY-DATUM
*   LANGU_ISO                    =
*   LANGU_INT                    =
*   CHARACTS_OF_CLASS_ONLY       =
* IMPORTING
*   RETURN                       =
TABLES
    OBJECT_CLASSIFICATION        = ZOBJECT_CLASSIFICATION
    CLASS_OBJECTS                = ZCLASS_OBJECTS
OBJECT_CLASSIFICATION[] = ZOBJECT_CLASSIFICATION[].
ENDFUNCTION.
please advise.
once again if this should be moved to another forum , add the link please!

Dear,
I just debugged my Z-function, after adding all input parameters as in the standard BAPI function.
All parameters seems to be passed correctly except from the table parameters from
CLASS_OBJECTS
So all I_parameters are passed :
{ZBAPI_CLASS_GET_CLASSIFICATION.I_LANGU_INT} = "EN" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_LANGU_ISO} = "EN" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_KEY_DATE} = Date (2011, 08, 05) and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_CLASSNUM} = "DSWTEST" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_CLASSTYPE} = "001" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_CHARACTS_OF_CLASS_ONLY.BAPIFLAG} = ""
but the table parameters aren't coming through:
{ZBAPI_CLASS_GET_CLASSIFICATION.T_CLASS_OBJECTS.OBJECT_TYPE} = "MARA" and
{ZBAPI_CLASS_GET_CLASSIFICATION.T_CLASS_OBJECTS.OBJECT_KEY} = "000000000000000085" and
these are 'blanco' in the function.
also after the function is executed and all data is retrieved, when passing the data back to Crystal reports, once again, the table result isn't passed to Crystal Reports.
please advise

DB Call from Oracle Business Rule +Java Method call from OBR

Hi,
1.We have a requirement in project where we need to make DB Call from Business rule.
We are using ORACLE SOA11g.
Is this possible.Any pointers on this will be helpfull.
2.Can we call java method from Oracle Business Rule.If so pls suggest how it can be done.
Thanks In Advance,
Oracle SOA User

You can implement java class to make database updates using JDBC. You can add Java class as fact in business rules and invoke methods as actions of the business rules.
Hope this will help.
Jayesh Patel
http://jayesh-patel.blogspot.com/
http://www.yagnasys.com/

Oracle Function call from JDBC Adapter

Hi,
Is it possible to call Custom Oracle Function from JDBC Adapter?
I know we can call stored procedure but I need to call Oracle function. Please explain how?
Regards,
Shweta.

You'll need to provide a column alias for the function call:
select func(val) as alias from dual

Oracle function call from XSQL

Hi, Steve,
We have trouble to make a function call in XSQL. Here is what we have.
Function:
create or replace function VerifyUser (valid in varchar2)
return varchar2
is
begin
return(valid);
end;
XSQL call:
<PAGE xmlns:xsql="urn:oracle-xsql" connection="demo" istrue="ISTRUE">
<xsql:query>
select VerifyUser('{@istrue}') from DUAL
</xsql:query>
</PAGE>
Error message returned:
<PAGE istrue="ISTRUE">
<ERROR>oracle.xml.sql.OracleXMLSQLException: Invalid character in name.</ERROR>
</PAGE>
Any idea what is wrong here?
What we want is to get the out variable value onto the XSQL page.
Thanks for help.
null

You'll need to provide a column alias for the function call:
select func(val) as alias from dual

Help:Function call from CFScript

I need to write a function call within
<cfscript></cfscript> but not sure with the syntax. I
got error message with the suntax I wrote (see below).
All I need is for the function AddVal () to pass an Array
within the existing loop.
<CFSCRIPT>
//Existing codes
Function ExistingFunction(ParameterA) {
//some codes here
for ( i = 1; i LTE listLen( fileCon, crlf ); i = i + 1 ) {
//some codes was written here to generate a 2 dimensional
Array called: MyArray
// I need to write my function here, so on every loop it
will pass an array to be inserted to DB
function AddVa(MyArray); >>>>> ??????????????
<CFFUNCTION name="AddVal">
<cfargument name="MyVal" type="Array" required="true">
<cfquery name="MyQuery datasource="MyDatasource>
// insert statement here
</cfquery>
</CFFUNCTION>
</CFSCRIPT>

pls try this.
//syntax to call a function inside cfscript is given below.
//variablename = functionname(pass ur argument);
change ur code like this.

<CFSCRIPT>
function ExistingFunction(ParameterA) {
//some codes here
for ( i = 1; i LTE listLen( fileCon, crlf ); i = i + 1 ) {
//some codes was written here to generate a 2 dimensional
Array called: MyArray
getIP=AddVal(MyArray);//syntax to call a function inside
cfscript.
</CFSCRIPT>

<CFFUNCTION name="AddVal">
<cfargument name="MyVal" type="Array" required="true">
<cfquery name="MyQuery datasource="MyDatasource>
// insert statement here
</cfquery>
</CFFUNCTION>
try this and inform.

Java function calls from JSTL

Similar Messages

Maybe you are looking for