json

问题 $connect = mysqli_connect("localhost", "root", "123456", "json_test"); $sql = "SELECT * FROM names"; $query = mysqli_query( $connect,$sql ); while( $row=mysqli_fetch_array($query) ){ $arr[]=array( 'id' => $row['id'], 'title' => $row['name'] ); } echo json_encode( $arr ); is returning ??????? and it's cyrillic text(utf-8). How to fix it? 回答1: The mysqli_set_charset() function specifies the default character set to be used when sending data from and to the database server. You need to add

问题 $connect = mysqli_connect("localhost", "root", "123456", "json_test"); $sql = "SELECT * FROM names"; $query = mysqli_query( $connect,$sql ); while( $row=mysqli_fetch_array($query) ){ $arr[]=array( 'id' => $row['id'], 'title' => $row['name'] ); } echo json_encode( $arr ); is returning ??????? and it's cyrillic text(utf-8). How to fix it? 回答1: The mysqli_set_charset() function specifies the default character set to be used when sending data from and to the database server. You need to add

问题 When I serialize my JSON object out of DocumentDB, my Control is not deserializing into the OptionsControl with the Options property. I have the following class, Control : public class Control : IControl { public Guid Id { get; set; } public virtual Enums.ControlType Type { get; set; } public string PropertyName { get; set; } public string ControlCssClass { get; set; } public string Description { get; set; } } I also have OptionsControl , which inherits from Control : public class

问题 When I serialize my JSON object out of DocumentDB, my Control is not deserializing into the OptionsControl with the Options property. I have the following class, Control : public class Control : IControl { public Guid Id { get; set; } public virtual Enums.ControlType Type { get; set; } public string PropertyName { get; set; } public string ControlCssClass { get; set; } public string Description { get; set; } } I also have OptionsControl , which inherits from Control : public class

问题 Now, I have been trying to scrape google images using the following code : from selenium import webdriver from selenium.webdriver.common.by import By from selenium.webdriver.common.keys import Keys import os import time import requests import re import urllib2 import re from threading import Thread import json #Assuming I have a folder named Pictures1, the images are downloaded there. def threaded_func(url,i): raw_img = urllib2.urlopen(url).read() cntr = len([i for i in os.listdir("Pictures1"

问题 consider i have a json as following: { "a": "aa", "b": "bb", "c": "cc", "d": "dd", // unknown in advance "e": { //unknown in advance "aa": "aa" } } i know for sure that the json will contain a,b,c but i've no idea what other fields this json may contain. i want to serialize this JSON into a case class containing a,b,c but on the other hand not to lose the other fields (save them in a map so the class will be deserialized to the same json as received). ideas? 回答1: One option is to capture the

问题 I started learning nodejs and followed this tutorial to create a simple web app. https://blog.risingstack.com/node-hero-tutorial-getting-started-with-node-js/ According to the tutorial I can run the web app using either 'npm start' or node index.js' . When I use node install.js it works and give the result. But when I use npm start this error occurs. npm ERR! Linux 4.4.0-38-generic npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "start" npm ERR! node v4.2.6 npm ERR! npm v3.5.2 npm ERR! file

问题 I have a problem with my jqGrid. I have seen other posts here with similar problem, except that mine is particular in that the data is loading correctly in my development machine but when I publish the site on my production server, the jqGrid won't load the data, all I get is an empty grid. Every other ajax request for data in the server works fine, except for the jqGrid. My project is in MVC3 and I am hosting the site in win2008 IIS7. This is my current code: View: <script type="text

问题 I have an array of objects similar to the following: [ { "id": "one", "tags": { "my.key": "true" } }, { "id": "two", } ] How can I select all "id" values for each object containing a tag where "my.key" is "true"? 回答1: You can use a select with .tags["my.key"] == "true" and get only the id field : jq '.[] | select(.tags["my.key"] == "true") | .id' data.json 来源： https://stackoverflow.com/questions/41369982/how-to-select-a-json-object-where-a-child-value-array-contains-a-certain-propery

问题 This question is related to: prior question link I have a JSON file that looks like: [ { "rxnorm_id": "999999999", "drug_name": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "plans": [ { "plan_id_type": "xxxxxxxxxxxxx", "plan_id": "999999999999999", "drug_tier": "xxxxxxxxxxxxxxx", "prior_authorization": false, "step_therapy": false, "quantity_limit": false }, I am able to import every line into SAS that has 'rxnorm_id and drug_name using this code: > filename data url 'http://stg-oh-medicaid