feat: 채팅 기능추가

README.md

@@ -0,0 +1,45 @@
+<div align="center">
+
+## [짤 제목 바로가기](https://memetitle.com)
+<br>
+<img src="https://github.com/wnsrl1228/meme-title/assets/67573836/cd3395a0-62a6-4bf7-826a-f52acef32b5c" width="15%">
+
+<br>
+<img src="https://github.com/wnsrl1228/meme-title/assets/67573836/18e4c209-b3bb-4801-a699-89f743af616d" >
+
+
+<br>
+
+</div>
+
+<br>
+
+## 기술 스택
+
+### 프론트엔드
+
+<img width="50%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/c4b0adb9-0034-4049-8d08-3141de84803d">
+
+### 백엔드
+
+<img width="63%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/e489e0f4-59f2-4031-b418-0a58ba68aacc">
+
+### 인프라
+
+<img width="65%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/ce70a05a-0948-44f3-8605-47324db62268">
+
+<br>
+
+## 서비스 요청 흐름도
+
+<img width="100%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/51577ce9-6083-46f4-909e-2ab3384550e3">
+
+## 배포 과정
+
+<img width="100%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/680b2bb6-65c2-422a-b5c6-d1ef6ed0380e">
+
+## DB ERD
+<img width="100%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/8b8d9be3-7617-4bf3-a345-86c9d1a9ac42">
+
+## API 문서
+<img width="100%" src="https://github.com/wnsrl1228/meme-title/assets/67573836/0067e481-6066-44c8-8dd8-f72209eac2bd">

build.gradle

@@ -1,14 +1,14 @@
 plugins {
     id 'java'
-    id 'org.springframework.boot' version '2.7.5'
+    id 'org.springframework.boot' version '3.2.7'
     id 'io.spring.dependency-management' version '1.1.4'
 }
 
 group = 'com.example'
 version = '0.0.1-SNAPSHOT'
 
 java {
-    sourceCompatibility = '11'
+    sourceCompatibility = '17'
 }
 
 configurations {
@@ -28,12 +28,18 @@ dependencies {
     implementation 'io.jsonwebtoken:jjwt-api:0.12.5'
     implementation 'org.springframework.cloud:spring-cloud-starter-aws:2.2.6.RELEASE'
     implementation 'org.springframework.boot:spring-boot-starter-aop'
+    implementation 'org.springframework.boot:spring-boot-starter-websocket'
+    // queryDSL
+    implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
+    annotationProcessor "com.querydsl:querydsl-apt:5.0.0:jakarta"
+    annotationProcessor "jakarta.annotation:jakarta.annotation-api"
+    annotationProcessor "jakarta.persistence:jakarta.persistence-api"
+
     compileOnly 'org.projectlombok:lombok'
 
     runtimeOnly 'com.h2database:h2'
     runtimeOnly 'com.mysql:mysql-connector-j'
 
-
     runtimeOnly 'io.jsonwebtoken:jjwt-impl:0.12.5'
     runtimeOnly 'io.jsonwebtoken:jjwt-jackson:0.12.5'
 

src/main/java/com/memetitle/auth/AdminMemberArgumentResolver.java

@@ -1,18 +1,16 @@
 package com.memetitle.auth;
 
 import com.memetitle.auth.dto.AdminMember;
-import com.memetitle.auth.infrastructure.JwtProvider;
 import com.memetitle.global.exception.AuthException;
 import com.memetitle.global.exception.ErrorCode;
-import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.core.MethodParameter;
 import org.springframework.web.bind.support.WebDataBinderFactory;
 import org.springframework.web.context.request.NativeWebRequest;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.method.support.ModelAndViewContainer;
 
-import javax.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletRequest;
 
 @Slf4j
 public class AdminMemberArgumentResolver implements HandlerMethodArgumentResolver {

src/main/java/com/memetitle/auth/AuthHandlerInterceptor.java

@@ -8,8 +8,8 @@
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.servlet.HandlerInterceptor;
 
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import java.util.Optional;
 
 @Slf4j

src/main/java/com/memetitle/auth/LoginMemberArgumentResolver.java

@@ -10,7 +10,7 @@
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.method.support.ModelAndViewContainer;
 
-import javax.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletRequest;
 
 @RequiredArgsConstructor
 public class LoginMemberArgumentResolver implements HandlerMethodArgumentResolver {

src/main/java/com/memetitle/auth/domain/RefreshToken.java

@@ -4,9 +4,9 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.Id;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
 
 @Entity
 @Getter

src/main/java/com/memetitle/auth/infrastructure/JwtProvider.java

@@ -12,6 +12,7 @@
 import org.springframework.stereotype.Component;
 
 import javax.crypto.SecretKey;
+
 import java.math.BigInteger;
 import java.security.KeyFactory;
 import java.security.NoSuchAlgorithmException;

src/main/java/com/memetitle/auth/presentation/LoginController.java

@@ -6,11 +6,10 @@
 import com.memetitle.auth.dto.response.TokenResponse;
 import com.memetitle.auth.service.LoginService;
 import lombok.RequiredArgsConstructor;
-import lombok.extern.java.Log;
 import org.springframework.http.*;
 import org.springframework.web.bind.annotation.*;
 
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletResponse;
 
 import static org.springframework.http.HttpHeaders.SET_COOKIE;
 

src/main/java/com/memetitle/chat/config/CustomHandshakeInterceptor.java

@@ -0,0 +1,39 @@
+package com.memetitle.chat.config;
+
+import com.memetitle.chat.domain.ChatRoom;
+import com.memetitle.chat.repository.ChatRoomRepository;
+import com.memetitle.global.exception.InvalidException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.server.ServerHttpRequest;
+import org.springframework.http.server.ServerHttpResponse;
+import org.springframework.stereotype.Component;
+import org.springframework.web.socket.WebSocketHandler;
+import org.springframework.web.socket.server.HandshakeInterceptor;
+
+import java.util.Map;
+
+import static com.memetitle.global.exception.ErrorCode.NOT_FOUND_CHATROOM_ID;
+
+@Component
+@RequiredArgsConstructor
+public class CustomHandshakeInterceptor implements HandshakeInterceptor {
+
+    private final ChatRoomRepository chatRoomRepository;
+
+    @Override
+    public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Map<String, Object> attributes) throws Exception {
+        String path = request.getURI().getPath();
+        String roomId = path.split("/")[2];
+        ChatRoom chatRoom = chatRoomRepository.findById(Long.parseLong(roomId))
+                .orElseThrow(() -> new InvalidException(NOT_FOUND_CHATROOM_ID));
+
+        if (chatRoom.getMemberCount() == chatRoom.getMaxCapacity()) {
+            return false;
+        }
+
+        return true;
+    }
+
+    @Override
+    public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Exception exception) {}
+}

src/main/java/com/memetitle/chat/config/WebSocketConfig.java

@@ -0,0 +1,35 @@
+package com.memetitle.chat.config;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.messaging.simp.config.ChannelRegistration;
+import org.springframework.messaging.simp.config.MessageBrokerRegistry;
+import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
+import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
+import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
+
+@Configuration
+@EnableWebSocketMessageBroker
+@RequiredArgsConstructor
+public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
+
+    private final WebSocketInterceptor webSocketInterceptor;
+    private final CustomHandshakeInterceptor customHandshakeInterceptor;
+    @Override
+    public void registerStompEndpoints(StompEndpointRegistry registry) {
+        registry.addEndpoint("/ws/{roomId}") // socket 연결 url
+                .setAllowedOrigins("https://memetitle.com", "http://localhost:3000")
+                .addInterceptors(customHandshakeInterceptor);
+    }
+
+    @Override
+    public void configureMessageBroker(MessageBrokerRegistry config) {
+        config.enableSimpleBroker("/sub");  // 구독 url(채팅방 참여=구독)
+        config.setApplicationDestinationPrefixes("/pub");     // 메세지 발행 prefixes 설정
+    }
+
+    @Override
+    public void configureClientInboundChannel(ChannelRegistration registration) {
+        registration.interceptors(webSocketInterceptor);
+    }
+}

src/main/java/com/memetitle/chat/config/WebSocketInterceptor.java

@@ -0,0 +1,54 @@
+package com.memetitle.chat.config;
+
+import com.memetitle.chat.repository.ChatRoomStorage;
+import com.memetitle.chat.service.ChatService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.simp.stomp.StompCommand;
+import org.springframework.messaging.simp.stomp.StompHeaderAccessor;
+import org.springframework.messaging.support.ChannelInterceptor;
+import org.springframework.stereotype.Component;
+
+/**
+ * 채팅방 인원 관리용 인터셉터
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class WebSocketInterceptor implements ChannelInterceptor {
+
+    private final ChatService chatService;
+    private final ChatRoomStorage chatRoomStorage;
+
+    @Override
+    public Message<?> preSend(Message<?> message, MessageChannel channel) {
+        StompHeaderAccessor stompHeaderAccessor = StompHeaderAccessor.wrap(message);
+
+        if (stompHeaderAccessor != null) {
+            StompCommand command = stompHeaderAccessor.getCommand();
+
+            switch (command) {
+                case SUBSCRIBE -> {
+                    String simpDestination = (String) message.getHeaders().get("simpDestination");
+                    String roomId = simpDestination.split("/")[3];
+                    chatService.increaseMemberCount(Long.parseLong(roomId));
+
+                    String sessionId = (String) message.getHeaders().get("simpSessionId");
+                    chatRoomStorage.storage(sessionId, Long.parseLong(roomId));
+
+                    log.info("websocket subscribe");
+                }
+                case DISCONNECT -> {
+                    String sessionId = (String) message.getHeaders().get("simpSessionId");
+                    Long roomId = chatRoomStorage.getRoomId(sessionId);
+                    chatService.decreaseMemberCount(roomId);
+                    chatRoomStorage.delete(sessionId);
+                    log.info("websocket disconnect");
+                }
+            }
+        }
+        return message;
+    }
+}

src/main/java/com/memetitle/chat/domain/ChatRoom.java

@@ -0,0 +1,34 @@
+package com.memetitle.chat.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@EntityListeners(AuditingEntityListener.class)
+public class ChatRoom {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false, length = 50)
+    private String name;
+
+    @Column(nullable = false)
+    private int memberCount;
+
+    @Column(name = "max_capacity", nullable = false)
+    private int maxCapacity = 10;
+
+    @CreatedDate
+    @Column(updatable = false)
+    private LocalDateTime createdAt;
+}

src/main/java/com/memetitle/chat/dto/ChatRoomElement.java

@@ -0,0 +1,28 @@
+package com.memetitle.chat.dto;
+
+import com.memetitle.chat.domain.ChatRoom;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Builder
+public class ChatRoomElement {
+
+    private Long id;
+    private String name;
+    private int memberCount;
+    private int maxCapacity;
+    private LocalDateTime createdAt;
+
+    public static ChatRoomElement of(ChatRoom chatRoom) {
+        return ChatRoomElement.builder()
+                .id(chatRoom.getId())
+                .name(chatRoom.getName())
+                .memberCount(chatRoom.getMemberCount())
+                .maxCapacity(chatRoom.getMaxCapacity())
+                .createdAt(chatRoom.getCreatedAt())
+                .build();
+    }
+}

src/main/java/com/memetitle/chat/dto/request/ChatMessageRequest.java

@@ -0,0 +1,19 @@
+package com.memetitle.chat.dto.request;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+public class ChatMessageRequest {
+
+    private String nickname;
+    private String message;
+    private String date;
+
+    public ChatMessageRequest(String nickname, String message, String date) {
+        this.nickname = nickname;
+        this.message = message;
+        this.date = date;
+    }
+}

src/main/java/com/memetitle/chat/dto/response/ChatMessageResponse.java

@@ -0,0 +1,16 @@
+package com.memetitle.chat.dto.response;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class ChatMessageResponse {
+
+    private String nickname;
+    private String message;
+    private Long roomId;
+    private String date;
+
+}
+