Tag: reactjs

react class based component vs classes in java

I’m newish to react and I’ve always thought of a class based component much like I do classes in Java. Is it correct to compare the two thinking of the class based component and class in Java? In other words, are rendered components like objects in Java where they are an instantiation of the class…

react-native app error when try and test in emulator(?)

android java react-native reactjs

I get this error below whenever I try to test the app after typing the command npx react-native run-android. I tried setting paths in environmental variables. But still doesn’t work I tried reinstalling react-native but still does not work. I tried to reinstall JDK from java but finally, the app still d…

Unable to authenticate the login of application user using Keycloak

java keycloak keycloak-rest-api keycloak-services reactjs

I am working over integration of React application with Keycloak. I have installed the Keycloak server version 11.0.2 over my local machine. I am able to access the administrative login and create the admin user. I have also created a custom client and user with credentials using the Keycloak. My react applic…

How to properly filter Spring REST data

java reactjs rest spring spring-data-rest

I have a Spring Data REST service with a single @Entity and Repository. When I run $ curl localhost:8080/api I get all the data stored in my repository and it works as expected. I also have a small React front end and I display that data there. My question is: Where should I filter the data? For example maybe…

react + spring boot upload file and form data

axios java reactjs rest spring-boot

i have a case like in my form (front end), i can fill personal data (name, address, DOB) and then i can attach multiple image. In my spring boot controller : My model wrapper : Front end (React) Code : With above example, i always encounter errors. like : java.io.IOException: Stream closed and zero attachment…

Encrypt By javascript and decrypt by Java

java javascript react-native reactjs spring-boot

I use AES encryption in my react-native app as below Out come= encrypted: aK7+UX24ttBgfTnAndz9aQ== following is the code I use in my backend using java for get the decrypt output= decryted : = 123456[][][][][][][][][][] Iam getting out put as 16 bit as above. what I want is out put should come as only 123456.…