parameter-passing

问题 I want to rewrite my URL in Struts2. Please help me out to do this. How can i customize as i want, i don't want to show my parameter that i am passing and also show action with different name that i want I don't know how to do it. i have to use plugins for that or configure my code in struts.xml <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <constant name="struts.action.extension" value=

问题 I want to display the username/last connection date/time and some other info on all of my Twig views (which all extend from a common Twig layout). How can I achieve that without having to explicitly pass those parameters from each controller to each view? Do I have to create a Twig extension, or make a call to a controller/action that will retrieve username/connection/other info from the layout using render ? I'd like a simpler solution if possible. 回答1: User is accessible as a predefined

问题 I want to create a Procedure that its parameter is also a procedure. Is it possible? I created some procedures to be used as parameters below: Private Sub Jump(xStr as string) Msgbox xStr & " is jumping." End Sub Private Sub Run(xStr as string) Msgbox xStr & " is jumping." End Sub this procedure should call the procedure above: Private Sub ExecuteProcedure(?, StringParameter) '- i do not know what to put in there ? ' - name of the procedure with parameter End Sub usage: ExecuteProcedure(Jump,

问题 Question : How do I pass a variable in the RPostgreSQL query? Example : In the example below I try to pass the date '2018-01-03' to the query library(RPostgreSQL) dt <- '2018-01-03' connect <- dbConnect(PostgreSQL(), dbname="test", host="localhost", port=5432, user="user", password="...") result <- dbGetQuery(connect, "SELECT * FROM sales_tbl WHERE date = @{dt}") 回答1: You can use paste0 to generate your query and pass it to dbGetQuery: library(RPostgreSQL) dt <- '2018-01-03' connect <-

问题 How do I pass a variable array from one servlet to another servlet? 回答1: If you're passing the current request to another servlet, then just set it as request attribute. request.setAttribute("array", array); request.getRequestDispatcher("/servleturl").include(request, response); It'll be available in another servlet as follows: Object[] array = (Object[]) request.getAttribute("array"); Or, if you're firing a brand new request to another servlet, then just set it as request parameters.

问题 I recently discovered a parameter to pass to a google hangout uri to make it "on air": reference I'm also wondering if I can pass any other parameters. I know that we have app_id, but I'm more interested to know if there are other parameters, such as being able to set the title or the hangout in advance, e.g. https://plus.google.com/hangouts/_?hso=0&title=EdX%20SaaS%20Pairing Because then I could direct people to https://plus.google.com/u/0/s/%23hangoutsonair%20EdX/hangouts and they could see

问题 I am new to Hadoop. I want to access a command line argument from main function(Java program) inside the map function of the mapper class. Please suggest ways to do this. 回答1: Hadoop 0.20, introduced new MR API, there is not much functionality difference between the new (o.a.h.mapreduce package) and old MR API (o.a.h.mapred) except that data can be pulled within the mappers and the reducers using the new API. What Arnon is mentioned is with the old API. Check this article for passing the

问题 I am using symbolic toolbox to generate a matlab function. But the number of input to the generated function is varying with the number of objects that I need (e.g., number of switches). For 2 and 3 switches the generated function look likes this : y = fun(a1,a2,b1,b2) y = fun(a1,a2,a3,b1,b2,b3) In the script using this function I establish vectors of these parameters: a = [a1 a2 ...] What I want is to either call the generated function directly or make a wrapper function, so that I do not

问题 Background: I have a ViewScoped bean with a field named someId I have a page, somePage.xhtml with an inputText and a commandLink The value of the inputText has a corresponding field in the bean named searchValue When I click the link a method in the bean redirects to another page called searchResult.xhtml that use the same bean as somePage (although not a requirement) Before rendering searchResult the bean needs to execute a search in the database, based on the value of the inputText and the

问题 I'm very new to php and I've been spending quite some type understanding how to pass arguments from Python to php and conversely. I now know how to pass single variables, but I am still stuck and can't seem to find an answer to this one: Php calls a Python script (that part works) that returns a list of strings. I'd like to process this list in php. When I try: print mylist in myscript.py, and then : $result = exec('python myscript.py') it looks like php understands $result as a single string