wildcard

问题 I have successfully indexed files, and want to be able to search using wildcards. I am currently using the dismaxRequestHandler (QueryType = dismax) for the searches so that I can search all the fields for the query. A general search like 'computer' returns results but 'com*er' doesn't return any results. Similary, a search like 'co?mput?r' returns no results. Could someone please tell me a way to continue using dismax and be able to do wildcard searches in the 'q' field? Does edismax handler

问题 So I am reading about generic method and I am get confused. Let me state the problem here first: In this example: Suppose that I need a version of selectionSort that works for any type T, by using an external comparable supplied by the caller. First attempt: public static <T> void selectionSort(T[] arr, Comparator<T> myComparator){....} Suppose that I have: Defined vehicle class created VehicleComparator implementing Comparator while compare vehicles by their price. created Truck extends

问题 I'm working on a RESTful app in Kotlin and for the router, I'm using a when statement, as it's the most readable and good looking conditional. Is there a way to use Regex or a wildcard in the when statement for a string? (So that URIs like "/article/get/" would all be passed to the same controller) The structure of my router is as follows: when(uri) { "some/url" -> return SomeController(config).someAction(session) } 回答1: Yes. import kotlin.text.regex val regex1 = Regex( /* pattern */ ) val

问题 I was wondering what would be a good way to scan a directory that has characters you are not sure of. For example, I want to scan C:\Program\Version2.*\Files Meaning The folder is located in C:\Program Version2.* could be anything like Version2.33 , Version2.1 , etc. That folder has a folder named Files in it I know that I could do something like foreach (directory) if contains("Version2.") , but I was wondering if there was a better way of doing so. 回答1: Directory.EnumerateDirectories

问题 I have multiple websites set up in the same folder, and I want to create a batch file that will delete the cache in each of them without having to add a new line for each site. For example I am using this: del /S /Q D:\www\site-name\cache\* Which works, but I have to add a new line for every site in D:\www . The del command doesn't support: del /S /Q D:\www\*\cache\* So what is a better way to do this? 回答1: I think this should work: for /D %%f in ("D:\www\*") do @( del /S /Q "%%f\cache\*" )

问题 Directory.GetFiles(LocalFilePath, searchPattern); MSDN Notes: When using the asterisk wildcard character in a searchPattern, such as " .txt", the matching behavior when the extension is exactly three characters long is different than when the extension is more or less than three characters long. A searchPattern with a file extension of exactly three characters returns files having an extension of three or more characters, where the first three characters match the file extension specified in

问题 Recently I have heard statements like "you should never use wildcard imports" too often. So I want to ask community about this. Should wildcard imports really never ever be used in Java production code, no matter what? Are there exceptions to this rule? I interested in your personal experience and opinion. Do you use them in your production code and would you recommend it to others? How do you use them - can you recommend the best way to make it. It also interesting to look at it from Scala

问题 I've been reading tutorials and have learned nothing new. I have a table of customers. The customer's first and last names are stored in separate columns. I want to write a query that can search for customers by name, either first, last or BOTH. Here's what I've got: $queryyy = " SELECT * FROM `customers` WHERE `first_name1` LIKE '".mysql_real_escape_string($_GET['custname'])."%' OR `last_name1` LIKE '%".mysql_real_escape_string($_GET['custname'])."' AND `status` = 'active' LIMIT 6 "; If I

问题 So I read through the main Java Generic FAQ and the single thing which is holding me up are nested wildcards with lower bounds. I want to give you an example of what I do understand, something specifically which works and how I view it. Maybe you could tell me the way I am thinking about this is wrong even though the compiler isn't complaining in the "good" case. Example 1 (makes sense): static void WildcardsMethod(List<? extends Pair<? extends Number>> list) { System.out.println("It worked")

问题 I'm setting up a git repository for a website on a GoDaddy shared hosting account. Normally one would set up a git bare repo on the server that contained the live web data only, then on a push to the remote use a git post-receive hook to checkout to the live directory (thanks to @VonC for the links). That's fine, but I've set up the repository to include work files as well. On the server I have, /home/username/repo.git/work_folders, and /home/username/repo/web_files_and_folders for the