Question on Order of Request Parameters

I have to replace an old web server with a new servlet based solution. The old server supports client programs that make requests of the form:
www.whoever.com/myapp?ARG1=xyz&ARG2=abc&ARG3=pqr&ARG2=lmn&ARG3=uvw
Note there are multiple instances of the same parameters and the order is important. The parameters effectively represent structured data in a linear format. It is necessary to be able to distinguish the order of the parameters. Looking at the ServletRequest API it doesnt seem possible to do this. I cant see any way to retrieve the parameters in the order they appear. Is there a way round this problem?
Thanks,
Paul

You could use request.getQueryString() and then parsing the string to get the parameters in the correct order.

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Regards Mario

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Change request parameters

Hi,
I have a servlet and would like to change the request parameters before forwarding that request to another servlet.
But how can I change the parameters? I thought it would work with request.setAttributes, but the parameters are not being changed. How can I change the parameters then???

Hi Joberc
1. Did you read javax.servlet.Filter API of Servlet 2.3.
It allows us to do some filtering in between and forward to another servlet
http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/Filter.html
You can also search for code sample and see how it works.
2. As for your specific question and if possible, can we view your code to see
-- Paul.

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Hi Gurus,
Can anyone tell me the importance of Setting in Order Type Dependent Parameters ( T.Code OPL8) -
setting of purchase requisitions -
Reservation / purchase requistion - 1, 2 or 3.
What is the significance?
Srini

Hi,
If it is mainteaind 3 then, if there is any external operation if your production order then the purchase requisition will be created immediately upon creation of the order.
and the Collective request: Collective purch.req. enables collective purchase requisition per order for externally processed operations or non-stock items.
Hope this helps..
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Request parameters not decoded in UTF-8 format

Hi All,
I've a spring mvc application hosted in tomcat.But when I make a get request to this application giving japanese characters as parameters , the servlet decodes it in ISO-8859-1 fomat, due to which a search functionality is failing.
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This link may help you:
http://wiki.apache.org/tomcat/FAQ/CharacterEncoding
The change you made is indeed documented:
http://tomcat.apache.org/tomcat-7.0-doc/config/http.html
so if that doesn't work, you'll have to direct your question to a Tomcat forum.

Newbie: what is the equivalent of passing request parameters?

Hi-
I am new to JSF. I have read many tutorials and articles. I still don't get one concept about passing parameters. Note: I don't want to store stuff in the session unless I have to.
Let's say I have a page with a list of users. I layout the page with a panelGrid. Each row of the table has the first and last name of the user. If a user clicks on the name of a user on the user list, it should go to the user profile page. The backing bean for the user list page will be the UserListBean. It has a method called getUsers() that returns a List of User objects.
For the View User page, I have a ViewUserBean. The ViewUserBean retrieve the entire profile for that user.
How do I pass the user ID to the ViewUserBean? In struts, I would pass it as a request parameter (I would manually write the link URL with the userID). I know I can use the request like that in JSF, but that seems ugly. I looked at the code of the J2EE bookstore tutorial and it does a funky thing with all sorts of data stored in the session.
What is the best way to request a page and "pass in" a userID?
Thanks for your help.
Adam

I have a case on my current project very similar to your case. What you want, very simply, is an easy way to allow faces to handle URLs like http://www.domain.com/showUserDetails?userId=50
The natural trouble is that when loading the page, there is no action to use to prefetch the User object based on the Request Parameters in JSF.
All the solutions above either rely on the session or they are exceedingly complex. This case is actually very easy to do and is very straight forward using Managed Properties and a Request Scope bean...
Here is the rather straight forward solution I used...
First, make a "ShowUserDetailsBean" which represents the "logic" for this page.
public class ShowUserDetailsBean
    /** Will point to the actual user service after dependency injection*/
    private UserService userService;
    /** Will hold the userId from the HTTP Request Parameters*/
    private String userId;
    /** Will hold a lazy loaded copy of the User object matching userId*/
    private User user;
    public void setUserService(UserService userService) {
        this.userService = userService; //dependecy injection
    public void setUserId(String userId) {
       this.userId = userId; //dependency injection
    /** Lazy loads the User object matching the UserId */
    public User getUser() {
        //Trap the case where the URL has no userId
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        if (user == null) {
            user = userService.getUser(userId); //Lazy Load
        return user;
}Next, configure the managed properties in faces-config.xml
<faces-config xmlns="http://java.sun.com/JSF/Configuration">
<managed-bean>
    <managed-bean-name>userService</managed-bean-name>
    <managed-bean-class>foo.UserServiceImpl</managed-bean-class>
    <managed-bean-scope>application</managed-bean-scope>
</managed-bean>
<managed-bean>
    <managed-bean-name>showUserDetails</managed-bean-name>
    <managed-bean-class>foo.ShowUserDetailsBean</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
    <managed-property>
      <property-name>userService</property-name>
      <property-class>foo.UserService</property-class>
      <value>#{userService}</value>
    </managed-property>
    <managed-property>
      <property-name>userId</property-name>
      <property-class>java.lang.String</property-class>
      <value>#{param.userId}</value>
    </managed-property>
</managed-bean>Finally, you just make your webpage as you normally would...
<h:outputText value="#{showUserDetails.user.userId}"/>
<h:outputText value="#{showUserDetails.user.firstName}"/>
<h:outputText value="#{showUserDetails.user.lastName}"/>
Now you're ready to test, so you visit the page
http://www.domain.com/showUserDetails?userId=50
And your user details with userId=50 appears!
It's just that simple!
Regards,
Doug
Caveat: I haven't added any sample logic to handle cases where you visit:
http://www.domain.com/showUserDetails
without specifying a userId. I suggest you add some basic logic to your page to handle this case more gracefully.

WHY? Request Parameters From Form are NULL

I have the following process, which by the way has been working successfully for months, until just recently.
1) User comes to JSP page to upload images through a form that has the <input type="file"> fields as well as <input type="hidden"> to hold a few essential values.
2) User submits form, form action attribute set to go to a Servlet
3) Servlet reads all request params and inserts the images into a database.
I have code to read in the images...I use classes from the org.apache.commons package.
I could only assume it was the servlet that was the problem, but doubted that because why would it work all these months than suddenly stop.
I set up a test html page with a form and had it go to a jsp page to read the request params and print them out. To my suprise they all had NULL values.
Which tells me that the params aren't being read from the form.
How could this be??
Here is some example code snippets from my test pages:
HTML PAGE
<html><body>
<form name="images" action="testing_operations.jsp" enctype="multipart/form-data" method="post">
<input type="hidden" name="Customer_Number" value="4750">
<table>
<tr><td>
<input type="file" name="image1" />
</td></tr>
<tr><td>
<input type="file" name="image2" />
</td></tr>
<tr><td>
<input type="submit" value="submit">
</td></tr>
</table>
</form>
</body>
</html>JSP PAGE
String cus = request.getParameter("Customer_Number");
out.println("cus : " + cus +"<br>");
String image = request.getParameter("image1");
out.println("image: " + image);
I'm stumped...what am I doing wrong?
I can't continue until I get this figured out, can anybody help me with this?
Message was edited by:
Love2Java

I ran my original app with the enctype and without it:
the tomcat dos-prompt that shows exceptions lists out this below...
org.apache.commons.fileupload.FileUploadException: Processing of multipart/form-data request failed.
C:\jakarta-tomcat\temp\upload_00000009.tmp (The system cannot find the path specified)
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:429)
at org.apache.jsp.testing_operations_jsp._jspService(testing_operations_jsp.java:113)The code on line 113 in testing_operations.jsp is:
List items = upload.parseRequest(request);
and what is this .tmp file its trying to find?? I'm passing it an image off my local disk, not a .tmp file, there isn't even a temp folder in my jakarta-tomcat main folder....
It is failing on this line because it isn't reading the request parameters sent in, thus why too when I test for the values of the params they return null.
True, when I take out the enctype my test page will show the values, but this doesn't help me. I need that enctype attribute in there to process the images sent in through the fields.
So where does this leave me??
I went to the apache site for the commons upload and they have a more current version than what I'm using which is version 1.0, they have 1.1.1
I downloaded the new version but had no success in using it, the compiler couldn't find a class I attempted to use.
I still don't understand how this could be working and then suddenly stop.

Initialize managed bean from request parameters

Hi:
I thought this topic would be on the FAQ, but I couldn't find it. I am looking for a mean to initialize my managed bean from the query string. There must be something like:
<h:form initializeBean=""true"" requestParameter=""id_author"" beanProperty=""#{author.id_author}"" action=""#{author.getFromDB}"" >
</form>
The url would be something like http://localhost:8080/protoJSF/showAuthor.jsf?id_author=5334
And the getFromDB method would be something like
Public void getFromDB()
Statement stmt = cn.createStatement( ?SELECT * from author where id_author=? + getId_author() );
ResultSet rs = stmt.executeQuery();
}The only way I've found to perform something like this is to present a blank author form with a ''load data'' button: after pressing the button the user can see author's data and edit the data if she wants to. This two-step data screening is annoying, to say the least.
There must be a better way.
I beg for a pointer on how can I achieve the initializing of a managed bean with dynamic data.
Regards
Alberto Gaona

You just have to read carefully the very fun 289 pages
specification :-)Or, if 289 pages of JavaServer Faces is too much, you can get almost all of the same information from the JavaServer Pages 2.0 specification, or even the JSP Standard Tag Libraries specification :-).
More seriously, the standard set of "magic" variable names that JavaServer Faces recognizes is the same as that reognized by the EL implementations in JSP and JSTL. Specifically:
* applicationScope - Map of servlet context attributes
* cooke - Map of cookies in this request
* facesContext - The FacesContext instance for this request
* header - Map of HTTP headers (max one value per header name)
* headerValues - Map of HTTP headers (String array of values per header name)
* initParam - Map of context initialization parameters for this webapp
* param - Map of request parameters (max one value per parameter name)
* paramMap - Map of request parameters (String array of values per parameter name)
* requestScope - Map of request attributes for this request
* sessionScope - Map of session attributes for this request
* view - The UIViewRoot component at the base of the component tree for this view
If you use a simple name other than the ones on this list, JavaServer Faces will search through request attributes, session attributes, and servlet context (application) attributes. If not found, it will then try to use the managed bean facility to create and configure an appropriate bean, and give it back to you.
For extra fun, you can even create your own VariableResolver that can define additional "magic" variable names known to your application, and delegate to the standard VariableResolver for anything else.
Craig McClanahan

Extracting Request Parameters from a POST.

A client is POSTING some request parameters as part of its POST request.
My servlet is getting this as part of the getInputStream.
The contents of the inputStream received is:
username=someUserName&password=somePassword
Now how do I extract this username and password which is in the Body
of the POST?
I am trying request.getParameter("username")
but am not getting the value of the username.
Can some please help me as to how to get the request parameters?
Attached is my servlet
public class DeviceLocation extends HttpServlet {
private static final String CONTENT_TYPE = "text/html";
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
System.out.println("Servlet up and running...");
InputStream requestInputStream = request.getInputStream();
InputStreamReader isr = new InputStreamReader(requestInputStream);
BufferedReader br = new BufferedReader(isr);
String line = "";
StringBuffer sb= new StringBuffer();
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sb.append(line);
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System.out.println("User Agent : " + request.getHeader("User-Agent"));
} // End of servlet class.

try doing it without reading in the requestInputStream first:
public class DeviceLocation extends HttpServlet {
private static final String CONTENT_TYPE = "text/html";
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
System.out.println("Servlet up and running...");
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System.out.println("Request Method : " + request.getMethod());
System.out.println("Host : " + request.getHeader("Host"));
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Default rule in Order type dependend parameters - OPL8 - Order Settlement

Hello,
We are doing settlement of production orders via Tcode - Ko88.
After execution of the same, system is passing an FI entry to GL - which is mentioned in the Material Master (Valuation Class - 7900) i.e. through OBYC setting.
We have also checked the OPL8 setting (Order Type dependend Parameters - Controlling Tab) in which "Default Rule" is mentioned as - PP1 - Production Material full Settlement.
As the system is passing an entry via "Default Rule - PP1" stored in Order Type Dependend Paramenters:
1. What is the use of Settlement Profile (OKO7) & Allocation Structure (OKO6)?
2. Can we make "Default Rule" field as optional (In Tcode - OPL8) ? since all the settlements are resulting in same Material GL.
Waiting for a positive answer. Points will be assigned definitly.
Thanks & Regards,
Shridhar Sawant

Hi,
Settlement Profile:
In the settlement profile, you define a range of control parameters for settlement. You must define the settlement profile before you can enter a settlement rule for a sender.
If you want to settle the costs each time to just one cost center or just one G/L account, you need a settlement profile. As you cannot maintain the settlement parameters during settlement to a receiver, you must save the settlement profile either in the order type or in the model order or reference order.
Allocation Structure:
During settlement, costs incurred under the primary and secondary cost elements by a sender are allocated to one or more receivers. When you settle by cost element, you settle using the appropriate original cost element.
An allocation structure comprises one or several settlement assignments. An assignment shows which costs (origin: cost element groups from debit cost elements) are to be settled to which receiver type (for example, cost center, order, and so on).
You have two alternatives in settlement assignment:
You assign the debit cost element groups to a settlement cost element.
You settle by cost element - that is, the debit cost element is the settlement cost element.
This is a good idea, for example, if the required capital spending for an asset you are building yourself is to be monitored. These costs are settled by cost element to an inventory account in Asset Accounting at the end of the year, or when the measure is complete.
Each allocation structure must fulfil the following criteria:
Completeness
An allocation structure is assigned to each object to be settled. All cost elements in which costs are incurred, must be represented in the appropriate allocation structure.
Uniqueness
Each cost element in which costs are incurred may only appear once in an allocation structure. Only one settlement cost element may be assigned to a source within a particular allocation structure.
Source Structure:
A source structure contains several source assignments, each of which contains the individual cost elements or cost element intervals to be settled using the same distribution rules.
In the settlement rule for the sender you can define one distribution rule, in which you specify the distribution and receivers for the costs for each source assignment.
Thanks,
Rau

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Order type dependent parameters for process order

Hello friends,
In Order type dependent parameters for process order (T.C COR4), there is subscreen for Process data documentation.Inside it we have three options :a) Batch Record Required
b) Order Record Required
c) No Process Data Documentation Reqd.
Through F1 help whatever information i have got regarding them, is not cleared.
According to it, if i select Order Record Reqd, than first of all i will have to delete (archieve) the order record than only i can delete (archieve) the process order.The same is with Batch Record Required.
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Thankingy you guys in advance.

HI
For process data documentaion pls check the following link:
http://help.sap.com/saphelp_47x200/helpdata/en/89/a43ea8461e11d182b50000e829fbfe/frameset.htm
Thanks

Question about function with in parameters

Hello,
I have a question about functions with in-parameters. In the HR schema, I need to get the minimum salary of the job_id that is mentioned as an in-parameter.
this is what I am thinking but I dont know if it's correct or not or what should I do next!
create or replace function get_minimum_salary (i_job_id in varchar2)
return number
as
begin
SELECT min_salary INTO min_sal
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thanks in advance
EDIT
Thanks for your help all.
Is it possible to add that if the i_job_id which is the in type parameter does not have a minimum salary then use the following function to register an error:
create or replace procedure insert_error (i_error_code in number,
i_error_message in varchar2)
as
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insert into error_table (error_user, error_date, error_code, error_message)
values (user,sysdate,i_error_code,i_error_message);
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Edited by: Latvian83 on Jun 1, 2011 5:14 AM

HI
I have made little bit changes in ur code. try this
create or replace function get_minimum_salary (i_job_id in varchar2)
return number
as
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begin
SELECT min_salary INTO v_ min_sal
FROM jobs
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RETURN v_Min_sal;
end get_minimum_salary;
Regards
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Send SRM Purchase order Cancellation request to Vendor using SAP PI

Hi gurus,
We have to build an interface to send Purchase order cancellation request to vendor once the PO is deleted in SRM using PI.
Could some one please send me out a document to set up this interface.
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Hi Catherine,
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Question on Order of Request Parameters

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