get | 易学教程

Get each value from a string via std::ifstream

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问题 I am try to use an ifstream with the while loop to get each value. However, when I try it, nothing happens. Why? std::string line; std::getline(cin, line); std::ifstream stream(line); while(stream){ std::cout << stream.get(); } 回答1: You must use an istringstream , not an ifstream . 来源： https://stackoverflow.com/questions/20639889/get-each-value-from-a-string-via-stdifstream

Node.js - Array is converted to object when sent in HTTP GET request query

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问题 The following Node.js code: var request = require('request'); var getLibs = function() { var options = { packages: ['example1', 'example2', 'example3'], os: 'linux', pack_type: 'npm' } request({url:'http://localhost:3000/package', qs:options}, function (error , response, body) { if (! error && response.statusCode == 200) { console.log(body); } else if (error) { console.log(error); } else{ console.log(response.statusCode); } }); }(); sends the following http GET request query that is received

alternative to $_POST

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问题 I have a huge form with inputs of type (text, checkboxes, hidden et). The content of the form inputs are taken from a database. The user has to make some changes and to save the data back into the db. At this moment I'm using a function which has a foreach($_POST as $key=>$value) loop. As you know, there are problems with post method: can't make refresh, can't go backwards. I'll like to use $_GET method, but the length of my variables and values are bigger than 2000 characters. Do you have

How to solve route not defined in laravel 5.3?

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问题 My controller code is like this : public function store(CreateUserRequest $request) { $input = $request->all(); $user = $this->userRepository->create($input); Flash::success('User saved successfully.'); return redirect(route('user.index.'.$input['year'])); } There is exist error like this : InvalidArgumentException in UrlGenerator.php line 314: Route [users.index.2016] not defined. When error, the url look like this : http://localhost/mysystem/public/users My routes\web.php is like this :

Loading database content via XMLHttpRequest in Wordpress

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问题 I have created a new wordpress-template-page. The idea is, that when I click on a link in my sidebar-div, it should load content from an database in my content-div. On a simple php-page it works, but in combination with my wordpress template-page it doesn't work... And that's my code: (short version) <?php // Template Name: Weinkarte get_header(); ?> <div id="container-sidebar"> <span id="wineList"></span> </div> <div id="sidebar-right"> <li><a href='#' id='1' onclick='loadWine(this.id)'

Find a given key's value in a nested ordered dict python

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问题 I am trying to find the value of a given key from a nested OrderedDict. Key points: I don't know how deep this dict will be nested The name of the key I am looking for is constant, it will be somewhere in the dict I would like to return the value of the key called "powerpoint_color" in this example... mydict= OrderedDict([('KYS_Q1AA_YouthSportsTrustSportParents_P', OrderedDict([('KYS_Q1AA', OrderedDict([('chart_layout', '3'), ('client_name', 'Sport Parents (Regrouped)'), ('sort_order',

how to loop through a set of GET values in php

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问题 I'm making a simple online store like program. What can you suggest that I would do so that I can loop through the inputs I've made in my program. I'm still using get so that I could see how the data looks like, I'll change it to post later. This is what the url looks like, when I commit the buying of all the products added in the cart: http://localhost/pos/php/checkout.php?ids=2;&qoh=12;&qbuys=&ids=6;&qoh=2304;&qbuys=304&ids=4;&qoh=699;&qbuys=99 This is the code that I'm using to commit only

How to properly pass form data in php?

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问题 I'm using php to build a small form that requires passing 2 variables for processing. I got the example off w3schools and although the info gets passed in the URL, the php form doesn't process it in any way (let alone extract it). I'm just wondering if there might be anything wrong with my WAMP server. <html> <body> welcome Welcome <?php echo $_GET["fname"]; ?>.<br /> You are <?php echo $_GET["age"]; ?> years old! </body> </html> HTML form: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0

React “fetch()” Can “Get” but Never “Posts”

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问题 I am new to the "fetch" command in React. I can use it to GET, but I have had no luck with using it to POST. I run the following simple code. onSubmit(event) { // For some reason, "fetch" is GETTING instead of POSTING. fetch('/questionare/', { method: 'post', body: JSON.stringify({greeting: "Hello"}) }).then((res) => alert(res.json)); } The content of the POST request gets processed on on the back-end by the following code. router.post('/', function(req, res, next) { res.json(req.body); });

Angular and CORS

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问题 I am writting app with angular 1.2 and I am trying to call to REST API on local glassfish 3.1. I am calling right that: app.factory("shopModel", function($resource){ return $resource('http://localhost:8080/Schedule-service/shops', {}, { query: {method:'GET', headers: {'Content-Type': 'application/json'} params:{}} }); }); But I get an error in my chrome. XMLHttpRequest cannot load http://localhost:8080/Schedule-service/shops. No 'Access-Control-Allow-Origin' header is present on the requested