I need to choose dynamically which parameters should be in query output. Is there any way to do something like that: For example I have Entity User with name, surname, address, age. In one case I want to choose only name, in other sername, age and address. And e.t.c Answer You can create interfaces to represent a View like the
Tag: java
I am trying to create an API using SpringBoot but I don’t know how to handle json request/response
I am new to Java and Spring boot. I am creating a new API. Using postman I am sending a request body which contains request header and request payload. Then I have a controller which handles the request with the help of RequestPayload class. (And a service and dao file but I am sure those are ok.) Kindly let me
Isn’t SecurityContextHolder a Bean?
Trying to Autowire SecurityContextHolder I get error Turns out that it is available from any part of the code like How come it isn’t a bean and how does it get initialized under the hood? Are there other static utility classes like that available to be consumed from anywhere and how do I find them? Answer SecurityContextHolder is a utility
Cash to Change in Java
I am new to Java and was trying to write code that would tell you how much change you would receive for a given amount of money (in minimum number of coins). For example $0.31 would give 1 quarters, 0 dimes, 1 nickels, 1 pennies. I got to a point where my code seemed to work. However, while most values
Spring. One-time add session attributes after authorization
Stack: Spring Security and Thymeleaf. I have the following problem: I want to show or not show some elements in all html templates depending on user’s role. So, I need a boolean variable “isAdmin” in all templates so that I can use it in conditions: Please help me find the best solution. What I tried: Option 1. I can add
Do-while loop doesn’t work for validating using a .equals method (Java) [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 9 days ago. Improve this question
How do I add a method so I can just a String instead of typing a whole statement
how do i make it so i only have to type “onion” instead of typing the whole thing. I am trying add a String for the Flavour of PackOfCrisps, but i have to type: new PackOfCrisps(“onion”) this is what i have done for the method and this is the interface i get where i have to type: new PackOfCrisps(“onion”) Answer
How can i store uri.toString to my java class?
I want to store a uri to my donation.java class so that ill be able to fetch an image from firebase storage and display it on a cardview. However uri.toString is highlighted red and shows a “Cannot resolve constructor ‘donation(java.lang.String)'” donate.java donation.java I’ve tried storing the uri to a different class which was successful but I had to make another
How to test public method in Application Module in Oracle ADF?
I am working on a project that is based on the Oracle ADF framework. We have an AM (application module) called TestAM.xml that has interface TestAM.java and implementation class TestAMImpl.java. TestAMImpl.java has a public method with a method signature: String fetchSomething(String id) I want to test/debug this method locally by passing the ID parameter, how can I do that? I
Is there a way I can bundle a jre in a Launch4j .exe file?
I would like to bundle a jre folder into my generated launch4j .exe file via maven pom.xml (For some reason, I don’t want an installer, just a click to run Java application that has its own embedded jre). Is it possible? I have read through several posts and I don’t get a maven automated one. I don’t want to do