I am trying to take a list of user objects from a Collection and convert it into JSON format. This will allow me to read the JSON data on my HTML page using JavaScript.
List<UserWithEmbeddedContact> users=(List<UserWithEmbeddedContact>) q.execute();
if(!users.isEmpty()) {
for(UserWithEmbeddedContact user:users) {
System.out.println("username="+user.getUsername()+
" password="+user.getPassword()+" mobile="+user.getMobile());
}
}
JSON is definitely the way to go:
Here's a snippet from their official website:
JSON, or JavaScript Object Notation, is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is based on a subset of the JavaScript programming language.
Example Usage:
List<Product> productList = (List<Product>) productService.retrieveProducts();
final Type listType = new TypeToken<List<Product>>(){}.getType();
final String jsonOutput = new Gson().toJson(productList, listType);
I highly recommend utilizing json-lib in your Java projects. It simplifies the process.
Give this a shot - it's a simple way to transform Java instance variables into JSON format.
import com.google.gson.Gson;
public class ConvertToJson {
// define the variables that will be converted
private int number = 42;
private String name = "world";
private String[] items = { "apple", "banana", "cherry" };
public static void main(String[] args) {
// create an object of the class
ConvertToJson obj = new ConvertToJson();
// create a Gson object
Gson gson = new Gson();
// convert the Java object to JSON and get the JSON string
String jsonOutput = gson.toJson(obj);
System.out.println(jsonOutput);
}
}
I am attempting to retrieve data from an API in R that includes a non-standard Latin character in the URL, but I keep encountering an error. URLs without any special characters work perfectly fine. The error message I receive is as follows: > RJSONIO:: ...
I recently encountered an issue with a string that I needed to convert into a JSON object. The string looked like this: string = '{ "key": [ { "foo": "bar" } ] }'; To convert the string, I used: json = $.parseJSON(string); However, after co ...
The challenge I am facing involves a set of radio buttons representing dates from today to 30 days in the future. When a radio button is selected or active, it changes the background color. However, I would like the default selection to be the first radio ...
Within my JSON data, I have multiple products defined. My goal is to loop through this JSON and display these products side by side on a web page for easy comparison. Initially, I envision structuring them in columns and then rows: https://i.sstatic.net/K ...
My REST WCF Service produces the JSON shown below: { "RecordsUpdateResult":[ { "ID":115, "Crud":2, "Data":{ "__type":"Client:#PIT.Library.AndroidClasses", "ID":115, "Adress":"str. 1", ...
Currently, I am experimenting with adding jQuery autocomplete functionality to all input boxes on a web page. Initially, there are only two input boxes, but users can dynamically add more. The autocomplete feature works fine in the first two boxes but fail ...
Is there a way to set a startup route for ui-router that differs from using $urlRouterProvider.otherwise()? Or is it possible to cleverly guide ui-router towards navigating to a different path upon initialization? ...
When I open my application, the radio button field I have selected experiences a delay in changing. For instance, upon opening the page, the radio button starts off in the unselected state. However, after some time (such as when hovering or scrolling), it ...
Here is a code snippet I am looking to implement: /* Stylish Form */ form input { width: 80%; font-size: 2rem; } .form-label { position: absolute; left: 1rem; font-size: 1.5rem; color: #5a5a5a; background-color: white; transition: 0.5s ...
[enter image description here][1] Hey there, I'm trying to set up two lists like the image provided that can move items between them using JavaScript. While my code for moving all items is working fine, I'm facing an issue with moving checked it ...
Today marks my first experience using this wunderground service. My goal is to retrieve weather data under the following circumstances: Note : Today Date :2014-02-03 I am looking to access weather data ranging from 2014-01-21 to 2014-01-31, which fal ...
While developing a React component, I have set the default export as shown below: React.memo(MyReactComponent, isEqual) The isEqual function used here is from the lodash library. The issue I am facing is that my application tries to update the component ...
When trying to display a tooltip for MUI's ToggleButton while it is disabled, I am encountering an issue where the tooltip works fine for enabled ToggleButtons but breaks for disabled ones. <ToggleButton value={item?.key} aria-label="left aligned" ...
When I open a Dialog Window, it has its own controller. Is there a way for me to modify data in the differentController that belongs to the Dialog Window and then send the modified data back to the parent controller when the dialog is being removed? fun ...
I am currently utilizing the single-spa library (version 5.8.2) in conjunction with multiple Angular projects. Upon attempting to import ngx-quill (a library that itself imports another library, quill.js), I encountered an issue where the single spa librar ...
I'm attempting to calculate the average temperature and humidity from my JSON response at 15-minute intervals using the MongoDB Aggregate framework. However, I'm encountering a SyntaxError: invalid property id @(shell):2:0 This is the code I am ...
Encountering an error in IE8 when loading the jspdf.debug.js file: SCRIPT438: Object doesn't support property or method 'getContext' and SCRIPT257: Could not complete the operation due to error 80020101. After researching with Google, un ...
Currently, my tests are set up so that each class instantiates its own browser. Each class corresponds to a specific page I want to test. Now, I aim for all my tests to run in a single browser. The code is structured as follows: there is a base page where ...
Currently, I am in the process of developing a NodeJS + ExpressJS Ecommerce Website. My focus is on enhancing the functionality of the admin panel feature. Users can navigate to /admin/products/new to access a form. When the user completes and submits this ...
public class ran { ran obj1 = new ran();//is this causing a recursive instantiation of objects?? public String s = null; public static void main(String[] args) { ran obj2 = new ran(); obj2.s = "main"; obj2.o ...