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Spring MVC - How to get all request params in a map in Spring controller?

...ct directly. The answer is actually quite simple and what you would expect if you're familiar with Spring MVC. @RequestMapping(value = {"/search/", "/search"}, method = RequestMethod.GET) public String search( @RequestParam Map<String,String> allRequestParams, ModelMap model) { return "vie...
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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?

...ethods such as require and permit. The require method ensures that a specific parameter is present, and if it's not provided, the require method throws an error. It returns an instance of ActionController::Parameters for the key passed into require. The permit method returns a copy of the paramet...
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MySQL OPTIMIZE all tables?

...ocked while OPTIMIZE is being performed, which can take a substantial time if the tables hold lots of data. So, during the time a table is being OPTIMIZE'd, no new records can be inserted or deleted. Generally, OPTIMIZE'ing all tables of a production system cannot be considered as a trivial operatio...
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Write a number with two decimal places SQL server

... If this was the answer 10 years ago it isn't any more. This method would turn 10.11111 into 10.00. – Jonathon Cowley-Thom Aug 8 '19 at 12:31 ...
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How can I expand the full path of the current file to pass to a command in Vim?

... @keflavich :help filename-modifiers – Annika Backstrom Jan 25 '12 at 3:38 ...
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Is there a way to add/remove several classes in one single instruction with classList?

... And if you want to apply an Array of several class-names, you have to call: DOMTokenList.prototype.add.apply(elem.classList, ['first', 'second', 'third']); – Emanuel Kluge Feb 15 '13 at 16:...
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How to check if smtp is working from commandline (Linux) [closed]

... You should wait for the servers's response to each command, and abort if you get and error (4xx or 5xx result code). – tripleee Aug 16 '12 at 14:01 ...
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How can I create a Makefile for C projects with SRC, OBJ, and BIN subdirectories?

...get name does not actually describe what the rule builds. For that reason, if you type make several times, Make will rebuild the target each time, even though there is no reason to. A small change fixes that: $(BINDIR)/$(TARGET): $(OBJECTS) $(LINKER) $@ $(LFLAGS) $(OBJECTS) @echo "Linking c...
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What do hjust and vjust do when making a plot using ggplot?

Every time I make a plot using ggplot, I spend a little while trying different values for hjust and vjust in a line like 2...
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How to use cURL to get jSON data and decode the data?

...ng cURL // Initiate curl $ch = curl_init(); // Will return the response, if false it print the response curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // Set the url curl_setopt($ch, CURLOPT_URL,$url); // Execute $result=curl_exec($ch); // Closing curl_close($ch); // Will dump a beauty json :3 v...