무슨 프로젝트인가?유저들이 카페에 대한 후기를 남길수있는 웹 사이트무슨 기술을 사용했는가?front 는 React, back 은 Java SpringBoot 를 사용했다.그 이외에도 React query, data JPA, JWT, AWS EC2, Amplify, Cl

오늘은 S3 에 업로드 되어있는 이미지 수정 기능을 구현해보았다.처음엔 가볍게 생각했던 수정 작업이였지만, 생각치 못한 부분이 있음을 깨닫고 어려움에 봉착하게 되는데,문제는 다음과 같다:서버에서는 Multipartfile을 s3 에 업로드 후 받은 url 을 front

어제의 trouble shooting 의 연장선이다 .로그인 한 유저의 닉네임 값을 헤더에 넣어달라는 요청을 Http header 에 넣으려 했지만 실패했고 ( 한국어 지원 문제), 리턴 값에 넣어서 보내주려 했었던게 첫 시도 였다.다만, 프론트에서 JWT 토큰을 de

While I was collaborating with frontend (React.js), we have experienced the error regarding Cross Origin Resource Sharing (CORS) whenever the front en

It was quite challenging for me to wrap my head around this concept of Model-View-Controller pattern.I am still getting used to it and within this blo

This is purely going to be about Annotations I have encountered while developing my first Java Spring Boot project. @Autowired : It is used to autowir

In the process of learning Java, I noticed that the word Java Virtual Machine(JVM) comes out quite often.A Java Virtual Machine is a virtual machine t

By definition, IoC is when objects do not create other objects on which they rely to do their work, instead they get the objects from outside.Think of

public interface Comparable<T>This interface imposes a total ordering on the objects of each class that implements it. Comparable interface is used

I believe in practicing algorithm is crucial for understanding the language. After spending some time of agony from facing an unsolvable problem, I ha

I think the one of the most important process when it comes to using the Java is how to convert data type. During this process, I noticed that I got f

It is hard to see any applications that does not have a login function. Login grants two major concepts to the users:1\. Authentication (checking who

Non Primitive Data Types user defined data types.

The primitive data type of Java and how they get converted into a different type.