Merge branch 'feature/daily_bugfix_0823' into codex/create-searchpersondropdown-component

backend/src/main/java/com/openisle/config/ChannelInitializer.java

@@ -1,35 +0,0 @@
-package com.openisle.config;
-
-import com.openisle.model.Channel;
-import com.openisle.model.MessageConversation;
-import com.openisle.repository.ChannelRepository;
-import com.openisle.repository.MessageConversationRepository;
-import lombok.RequiredArgsConstructor;
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.stereotype.Component;
-
-@Component
-@RequiredArgsConstructor
-public class ChannelInitializer implements CommandLineRunner {
-    private final ChannelRepository channelRepository;
-    private final MessageConversationRepository conversationRepository;
-
-    @Override
-    public void run(String... args) {
-        if (channelRepository.count() == 0) {
-            createChannel("吹水群", "闲聊讨论", "/default-avatar.svg");
-            createChannel("技术讨论群", "技术交流", "/default-avatar.svg");
-        }
-    }
-
-    private void createChannel(String name, String description, String avatar) {
-        MessageConversation conversation = new MessageConversation();
-        conversation = conversationRepository.save(conversation);
-        Channel channel = new Channel();
-        channel.setName(name);
-        channel.setDescription(description);
-        channel.setAvatar(avatar);
-        channel.setConversation(conversation);
-        channelRepository.save(channel);
-    }
-}

backend/src/main/java/com/openisle/controller/ChannelController.java

@@ -1,82 +0,0 @@
-package com.openisle.controller;
-
-import com.openisle.dto.ChannelDto;
-import com.openisle.model.Channel;
-import com.openisle.model.MessageParticipant;
-import com.openisle.model.MessageConversation;
-import com.openisle.model.User;
-import com.openisle.repository.ChannelRepository;
-import com.openisle.repository.MessageParticipantRepository;
-import com.openisle.repository.UserRepository;
-import com.openisle.repository.MessageRepository;
-import lombok.RequiredArgsConstructor;
-import org.springframework.http.ResponseEntity;
-import org.springframework.security.core.Authentication;
-import org.springframework.web.bind.annotation.*;
-
-import java.util.List;
-import java.util.stream.Collectors;
-
-@RestController
-@RequestMapping("/api/channels")
-@RequiredArgsConstructor
-public class ChannelController {
-    private final ChannelRepository channelRepository;
-    private final MessageParticipantRepository participantRepository;
-    private final UserRepository userRepository;
-    private final MessageRepository messageRepository;
-
-    private Long getCurrentUserId(Authentication auth) {
-        User user = userRepository.findByUsername(auth.getName()).orElseThrow(() -> new IllegalArgumentException("User not found"));
-        return user.getId();
-    }
-
-    @GetMapping
-    public ResponseEntity<List<ChannelDto>> listChannels(Authentication auth) {
-        Long userId = auth == null ? null : getCurrentUserId(auth);
-        List<ChannelDto> channels = channelRepository.findAll().stream()
-                .map(c -> toDto(c, userId))
-                .collect(Collectors.toList());
-        return ResponseEntity.ok(channels);
-    }
-
-    @PostMapping("/{id}/join")
-    public ResponseEntity<Void> joinChannel(@PathVariable Long id, Authentication auth) {
-        Channel channel = channelRepository.findById(id).orElseThrow(() -> new IllegalArgumentException("Channel not found"));
-        Long userId = getCurrentUserId(auth);
-        boolean exists = channel.getConversation().getParticipants().stream().anyMatch(p -> p.getUser().getId().equals(userId));
-        if (!exists) {
-            MessageParticipant participant = new MessageParticipant();
-            participant.setConversation(channel.getConversation());
-            participant.setUser(userRepository.findById(userId).orElseThrow(() -> new IllegalArgumentException("User not found")));
-            participantRepository.save(participant);
-        }
-        return ResponseEntity.ok().build();
-    }
-
-    private ChannelDto toDto(Channel channel, Long userId) {
-        ChannelDto dto = new ChannelDto();
-        dto.setId(channel.getId());
-        dto.setName(channel.getName());
-        dto.setDescription(channel.getDescription());
-        dto.setAvatar(channel.getAvatar());
-        if (channel.getConversation() != null) {
-            MessageConversation conversation = channel.getConversation();
-            dto.setConversationId(conversation.getId());
-            dto.setMemberCount(conversation.getParticipants().size());
-            if (userId != null) {
-                MessageParticipant self = conversation.getParticipants().stream()
-                        .filter(p -> p.getUser().getId().equals(userId))
-                        .findFirst().orElse(null);
-                if (self != null) {
-                    var lastRead = self.getLastReadAt();
-                    dto.setUnreadCount(messageRepository
-                            .countByConversationIdAndCreatedAtAfterAndSenderIdNot(conversation.getId(),
-                                    lastRead == null ? java.time.LocalDateTime.of(1970,1,1,0,0) : lastRead,
-                                    userId));
-                }
-            }
-        }
-        return dto;
-    }
-}

backend/src/main/java/com/openisle/controller/MessageController.java

@@ -59,14 +59,6 @@ public class MessageController {
         return ResponseEntity.ok(toDto(message));
     }
 
-    @PostMapping("/conversations/{conversationId}/messages")
-    public ResponseEntity<MessageDto> sendMessageToConversation(@PathVariable Long conversationId,
-                                                                @RequestBody ContentRequest req,
-                                                                Authentication auth) {
-        Message message = messageService.sendMessageToConversation(getCurrentUserId(auth), conversationId, req.getContent());
-        return ResponseEntity.ok(toDto(message));
-    }
-
     @PostMapping("/conversations/{conversationId}/read")
     public ResponseEntity<Void> markAsRead(@PathVariable Long conversationId, Authentication auth) {
         messageService.markConversationAsRead(conversationId, getCurrentUserId(auth));
@@ -122,16 +114,4 @@ public class MessageController {
             this.content = content;
         }
     }
-
-    static class ContentRequest {
-        private String content;
-
-        public String getContent() {
-            return content;
-        }
-
-        public void setContent(String content) {
-            this.content = content;
-        }
-    }
 }

backend/src/main/java/com/openisle/dto/ChannelDto.java

@@ -1,16 +0,0 @@
-package com.openisle.dto;
-
-import lombok.Getter;
-import lombok.Setter;
-
-@Getter
-@Setter
-public class ChannelDto {
-    private Long id;
-    private String name;
-    private String description;
-    private String avatar;
-    private Long conversationId;
-    private int memberCount;
-    private long unreadCount;
-}

backend/src/main/java/com/openisle/dto/ConversationDetailDto.java

@@ -10,5 +10,4 @@ public class ConversationDetailDto {
     private Long id;
     private List<UserSummaryDto> participants;
     private Page<MessageDto> messages;
-    private ChannelDto channel;
 }

backend/src/main/java/com/openisle/dto/ConversationDto.java

@@ -3,7 +3,6 @@ package com.openisle.dto;
 import lombok.Getter;
 import lombok.Setter;
 
-
 import java.time.LocalDateTime;
 import java.util.List;
 
@@ -15,5 +14,4 @@ public class ConversationDto {
     private List<UserSummaryDto> participants;
     private LocalDateTime createdAt;
     private long unreadCount;
-    private ChannelDto channel;
 }

backend/src/main/java/com/openisle/model/Channel.java

@@ -1,27 +0,0 @@
-package com.openisle.model;
-
-import jakarta.persistence.*;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.NoArgsConstructor;
-
-@Entity
-@Table(name = "channels")
-@Getter
-@Setter
-@NoArgsConstructor
-public class Channel {
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    private String name;
-
-    private String description;
-
-    private String avatar;
-
-    @OneToOne
-    @JoinColumn(name = "conversation_id")
-    private MessageConversation conversation;
-}

backend/src/main/java/com/openisle/repository/ChannelRepository.java

@@ -1,10 +0,0 @@
-package com.openisle.repository;
-
-import com.openisle.model.Channel;
-import org.springframework.data.jpa.repository.JpaRepository;
-
-import java.util.Optional;
-
-public interface ChannelRepository extends JpaRepository<Channel, Long> {
-    Optional<Channel> findByConversationId(Long conversationId);
-}

backend/src/main/java/com/openisle/service/MessageService.java

@@ -8,9 +8,6 @@ import com.openisle.repository.MessageConversationRepository;
 import com.openisle.repository.MessageParticipantRepository;
 import com.openisle.repository.MessageRepository;
 import com.openisle.repository.UserRepository;
-import com.openisle.repository.ChannelRepository;
-import com.openisle.model.Channel;
-import com.openisle.dto.ChannelDto;
 import com.openisle.dto.ConversationDetailDto;
 import com.openisle.dto.ConversationDto;
 import com.openisle.dto.MessageDto;
@@ -36,7 +33,6 @@ public class MessageService {
     private final MessageConversationRepository conversationRepository;
     private final MessageParticipantRepository participantRepository;
     private final UserRepository userRepository;
-    private final ChannelRepository channelRepository;
     private final SimpMessagingTemplate messagingTemplate;
 
     @Transactional
@@ -86,39 +82,6 @@ public class MessageService {
         return message;
     }
 
-    @Transactional
-    public Message sendMessageToConversation(Long senderId, Long conversationId, String content) {
-        User sender = userRepository.findById(senderId)
-                .orElseThrow(() -> new IllegalArgumentException("Sender not found"));
-        MessageConversation conversation = conversationRepository.findById(conversationId)
-                .orElseThrow(() -> new IllegalArgumentException("Conversation not found"));
-
-        Message message = new Message();
-        message.setConversation(conversation);
-        message.setSender(sender);
-        message.setContent(content);
-        message = messageRepository.save(message);
-
-        conversation.setLastMessage(message);
-        conversationRepository.save(conversation);
-
-        MessageDto messageDto = toDto(message);
-        String conversationDestination = "/topic/conversation/" + conversation.getId();
-        messagingTemplate.convertAndSend(conversationDestination, messageDto);
-
-        conversation.getParticipants().forEach(p -> {
-            if (!p.getUser().getId().equals(senderId)) {
-                String userDestination = "/topic/user/" + p.getUser().getId() + "/messages";
-                messagingTemplate.convertAndSend(userDestination, messageDto);
-                long unreadCount = getUnreadMessageCount(p.getUser().getId());
-                String recipientUsername = p.getUser().getUsername();
-                messagingTemplate.convertAndSendToUser(recipientUsername, "/queue/unread-count", unreadCount);
-            }
-        });
-
-        return message;
-    }
-
     private MessageDto toDto(Message message) {
         MessageDto dto = new MessageDto();
         dto.setId(message.getId());
@@ -135,19 +98,6 @@ public class MessageService {
         return dto;
     }
 
-    private ChannelDto toDto(Channel channel) {
-        ChannelDto dto = new ChannelDto();
-        dto.setId(channel.getId());
-        dto.setName(channel.getName());
-        dto.setDescription(channel.getDescription());
-        dto.setAvatar(channel.getAvatar());
-        if (channel.getConversation() != null) {
-            dto.setConversationId(channel.getConversation().getId());
-            dto.setMemberCount(channel.getConversation().getParticipants().size());
-        }
-        return dto;
-    }
-
     public MessageConversation findOrCreateConversation(Long user1Id, Long user2Id) {
         User user1 = userRepository.findById(user1Id)
                 .orElseThrow(() -> new IllegalArgumentException("User1 not found"));
@@ -204,9 +154,6 @@ public class MessageService {
                 })
                 .collect(Collectors.toList()));
 
-        channelRepository.findByConversationId(conversation.getId())
-                .ifPresent(channel -> dto.setChannel(toDto(channel)));
-
         MessageParticipant self = conversation.getParticipants().stream()
                 .filter(p -> p.getUser().getId().equals(userId))
                 .findFirst()
@@ -244,8 +191,6 @@ public class MessageService {
         detailDto.setId(conversation.getId());
         detailDto.setParticipants(participants);
         detailDto.setMessages(messageDtoPage);
-        channelRepository.findByConversationId(conversation.getId())
-                .ifPresent(channel -> detailDto.setChannel(toDto(channel)));
 
         return detailDto;
     }

frontend_nuxt/assets/global.css

@@ -18,7 +18,7 @@
   --background-color-blur: rgba(255, 255, 255, 0.57);
   --menu-border-color: lightgray;
   --normal-border-color: lightgray;
-  --menu-selected-background-color: rgba(208, 250, 255, 0.659);
+  --menu-selected-background-color: rgba(228, 228, 228, 0.884);
   --menu-text-color: black;
   --scroller-background-color: rgba(130, 175, 180, 0.5);
   /* --normal-background-color: rgb(241, 241, 241); */

frontend_nuxt/components/BaseTimeline.vue

@@ -41,6 +41,12 @@ export default {
   margin-top: 10px;
 }
 
+.timeline-item:hover {
+  background-color: var(--menu-selected-background-color);
+  transition: background-color 0.2s;
+  border-radius: 10px;
+}
+
 .timeline-icon {
   position: sticky;
   top: 0;

frontend_nuxt/components/SearchPersonDropdown.vue

@@ -0,0 +1,198 @@
+<template>
+  <div class="search-dropdown">
+    <Dropdown
+      ref="dropdown"
+      v-model="selected"
+      :fetch-options="fetchResults"
+      remote
+      menu-class="search-menu"
+      option-class="search-option"
+      :show-search="isMobile"
+      @update:search="keyword = $event"
+      @close="onClose"
+    >
+      <template #display="{ setSearch }">
+        <div class="search-input">
+          <i class="search-input-icon fas fa-search"></i>
+          <input
+            class="text-input"
+            v-model="keyword"
+            placeholder="Search users"
+            @input="setSearch(keyword)"
+          />
+        </div>
+      </template>
+      <template #option="{ option }">
+        <div class="search-option-item">
+          <img
+            :src="option.avatar || '/default-avatar.svg'"
+            class="avatar"
+            @error="handleAvatarError"
+          />
+          <div class="result-body">
+            <div class="result-main" v-html="highlight(option.username)"></div>
+            <div
+              v-if="option.introduction"
+              class="result-sub"
+              v-html="highlight(option.introduction)"
+            ></div>
+          </div>
+        </div>
+      </template>
+    </Dropdown>
+  </div>
+</template>
+
+<script setup>
+import { ref, watch } from 'vue'
+import Dropdown from '~/components/Dropdown.vue'
+import { stripMarkdown } from '~/utils/markdown'
+import { useIsMobile } from '~/utils/screen'
+import { getToken } from '~/utils/auth'
+const config = useRuntimeConfig()
+const API_BASE_URL = config.public.apiBaseUrl
+
+const emit = defineEmits(['close'])
+
+const keyword = ref('')
+const selected = ref(null)
+const results = ref([])
+const dropdown = ref(null)
+const isMobile = useIsMobile()
+
+const toggle = () => {
+  dropdown.value.toggle()
+}
+
+const onClose = () => emit('close')
+
+const fetchResults = async (kw) => {
+  if (!kw) return []
+  const res = await fetch(`${API_BASE_URL}/api/search/users?keyword=${encodeURIComponent(kw)}`)
+  if (!res.ok) return []
+  const data = await res.json()
+  results.value = data.map((u) => ({
+    id: u.id,
+    username: u.username,
+    avatar: u.avatar,
+    introduction: u.introduction,
+  }))
+  return results.value
+}
+
+const highlight = (text) => {
+  text = stripMarkdown(text || '')
+  if (!keyword.value) return text
+  const reg = new RegExp(keyword.value, 'gi')
+  return text.replace(reg, (m) => `<span class="highlight">${m}</span>`)
+}
+
+const handleAvatarError = (e) => {
+  e.target.src = '/default-avatar.svg'
+}
+
+watch(selected, async (val) => {
+  if (!val) return
+  const user = results.value.find((u) => u.id === val)
+  if (!user) return
+  const token = getToken()
+  if (!token) {
+    navigateTo('/login', { replace: true })
+  } else {
+    try {
+      const res = await fetch(`${API_BASE_URL}/api/messages/conversations`, {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+          Authorization: `Bearer ${token}`,
+        },
+        body: JSON.stringify({ recipientId: user.id }),
+      })
+      if (res.ok) {
+        const data = await res.json()
+        navigateTo(`/message-box/${data.conversationId}`, { replace: true })
+      }
+    } catch (e) {
+      // ignore
+    }
+  }
+  selected.value = null
+  keyword.value = ''
+})
+
+defineExpose({
+  toggle,
+})
+</script>
+
+<style scoped>
+.search-dropdown {
+  margin-top: 20px;
+  width: 500px;
+}
+
+.search-input {
+  padding: 10px;
+  display: flex;
+  align-items: center;
+  width: 100%;
+}
+
+.text-input {
+  background-color: var(--app-menu-background-color);
+  color: var(--text-color);
+  border: none;
+  outline: none;
+  width: 100%;
+  margin-left: 10px;
+  font-size: 16px;
+}
+
+.search-menu {
+  width: 100%;
+  max-width: 600px;
+}
+
+@media (max-width: 768px) {
+  .search-dropdown {
+    width: 100%;
+  }
+}
+
+.search-option-item {
+  display: flex;
+  gap: 10px;
+}
+
+.search-option {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 20px;
+}
+
+:deep(.highlight) {
+  color: var(--primary-color);
+}
+
+.avatar {
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+
+.result-body {
+  display: flex;
+  flex-direction: column;
+}
+
+.result-main {
+  font-weight: bold;
+}
+
+.result-sub {
+  font-size: 12px;
+  color: #666;
+}
+</style>

frontend_nuxt/pages/message-box/[id].vue

@@ -1,20 +1,22 @@
 <template>
   <div class="chat-container">
-    <div v-if="!loading" class="chat-header">
+    <div v-if="!loading && otherParticipant" class="chat-header">
       <NuxtLink to="/message-box" class="back-button">
         <i class="fas fa-arrow-left"></i>
       </NuxtLink>
-      <h2 class="participant-name">{{ channel ? channel.name : otherParticipant?.username }}</h2>
+      <h2 class="participant-name">{{ otherParticipant.username }}</h2>
     </div>
 
     <div class="messages-list" ref="messagesListEl">
-      <div v-if="loading" class="loading-container">加载中...</div>
+      <div v-if="loading" class="loading-container">
+        <l-hatch size="28" stroke="4" speed="3.5" color="var(--primary-color)"></l-hatch>
+      </div>
       <div v-else-if="error" class="error-container">{{ error }}</div>
       <template v-else>
         <div class="load-more-container" v-if="hasMoreMessages">
-          <button @click="loadMoreMessages" :disabled="loadingMore" class="load-more-button">
+          <div @click="loadMoreMessages" :disabled="loadingMore" class="load-more-button">
             {{ loadingMore ? '加载中...' : '查看更多消息' }}
-          </button>
+          </div>
         </div>
         <BaseTimeline :items="messages">
           <template #item="{ item }">
@@ -26,6 +28,13 @@
             </div>
           </template>
         </BaseTimeline>
+        <div class="empty-container">
+          <BasePlaceholder
+            v-if="messages.length === 0"
+            text="暂无会话，发送消息试试 🎉"
+            icon="fas fa-inbox"
+          />
+        </div>
       </template>
     </div>
 
@@ -55,6 +64,7 @@ import { useWebSocket } from '~/composables/useWebSocket'
 import { useUnreadCount } from '~/composables/useUnreadCount'
 import TimeManager from '~/utils/time'
 import BaseTimeline from '~/components/BaseTimeline.vue'
+import BasePlaceholder from '~/components/BasePlaceholder.vue'
 
 const config = useRuntimeConfig()
 const route = useRoute()
@@ -65,7 +75,6 @@ let subscription = null
 
 const messages = ref([])
 const participants = ref([])
-const channel = ref(null)
 const loading = ref(true)
 const sending = ref(false)
 const error = ref(null)
@@ -127,7 +136,6 @@ async function fetchMessages(page = 0) {
 
     if (page === 0) {
       participants.value = conversationData.participants
-      channel.value = conversationData.channel
     }
 
     // Since the backend sorts by descending, we need to reverse for correct chat order
@@ -175,31 +183,25 @@ async function loadMoreMessages() {
 async function sendMessage(content, clearInput) {
   if (!content.trim()) return
 
-  const token = getToken()
+  const recipient = otherParticipant.value
+  if (!recipient) {
+    toast.error('无法确定收信人')
+    return
+  }
+
   sending.value = true
+  const token = getToken()
   try {
-    let url
-    let body
-    if (channel.value) {
-      url = `${API_BASE_URL}/api/messages/conversations/${conversationId}/messages`
-      body = { content: content }
-    } else {
-      const recipient = otherParticipant.value
-      if (!recipient) {
-        toast.error('无法确定收信人')
-        sending.value = false
-        return
-      }
-      url = `${API_BASE_URL}/api/messages`
-      body = { recipientId: recipient.id, content: content }
-    }
-    const response = await fetch(url, {
+    const response = await fetch(`${API_BASE_URL}/api/messages`, {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json',
         Authorization: `Bearer ${token}`,
       },
-      body: JSON.stringify(body),
+      body: JSON.stringify({
+        recipientId: recipient.id,
+        content: content,
+      }),
     })
     if (!response.ok) throw new Error('发送失败')
 
@@ -390,27 +392,21 @@ onUnmounted(() => {
   padding-bottom: 100px;
   display: flex;
   flex-direction: column;
-  gap: 20px;
   margin-bottom: 10px;
 }
 
 .load-more-container {
   text-align: center;
-  margin-bottom: 20px;
 }
 
 .load-more-button {
-  background-color: var(--bg-color-soft);
-  border: 1px solid var(--border-color);
-  color: var(--text-color-primary);
-  padding: 8px 16px;
-  border-radius: 20px;
+  color: var(--primary-color);
+  font-size: 12px;
   cursor: pointer;
-  transition: background-color 0.2s;
 }
 
 .load-more-button:hover {
-  background-color: var(--border-color);
+  text-decoration: underline;
 }
 
 .message-item {
@@ -466,7 +462,13 @@ onUnmounted(() => {
   margin-right: 20px;
 }
 
-.loading-container,
+.loading-container {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  height: 300px;
+}
+
 .error-container {
   text-align: center;
   padding: 50px;

frontend_nuxt/pages/message-box/index.vue

@@ -1,105 +1,55 @@
 <template>
   <div class="messages-container">
-    <div class="tabs">
-      <div
-        class="tab"
-        :class="{ active: activeTab === 'messages' }"
-        @click="activeTab = 'messages'"
-      >
-        站内信
-      </div>
-      <div
-        class="tab"
-        :class="{ active: activeTab === 'channels' }"
-        @click="activeTab = 'channels'"
-      >
-        频道
-      </div>
+    <div v-if="loading" class="loading-message">
+      <l-hatch size="28" stroke="4" speed="3.5" color="var(--primary-color)"></l-hatch>
     </div>
 
-    <div v-if="activeTab === 'messages'">
-      <div v-if="loading" class="loading-message">
-        <l-hatch size="28" stroke="4" speed="3.5" color="var(--primary-color)"></l-hatch>
-      </div>
-
-      <div v-else-if="error" class="error-container">
-        <div class="error-text">{{ error }}</div>
-      </div>
-
-      <div v-else-if="conversations.length === 0" class="empty-container">
-        <div class="empty-text">暂无会话</div>
-      </div>
-
-      <div
-        v-for="convo in conversations"
-        :key="convo.id"
-        class="conversation-item"
-        @click="goToConversation(convo.id)"
-      >
-        <div class="conversation-avatar">
-          <img
-            :src="getOtherParticipant(convo)?.avatar || '/default-avatar.svg'"
-            :alt="getOtherParticipant(convo)?.username || '用户'"
-            class="avatar-img"
-            @error="handleAvatarError"
-          />
-        </div>
-
-        <div class="conversation-content">
-          <div class="conversation-header">
-            <div class="participant-name">
-              {{ getOtherParticipant(convo)?.username || '未知用户' }}
-            </div>
-            <div class="message-time">
-              {{ formatTime(convo.lastMessage?.createdAt || convo.createdAt) }}
-            </div>
-          </div>
-
-          <div class="last-message-row">
-            <div class="last-message">
-              {{
-                convo.lastMessage ? stripMarkdownLength(convo.lastMessage.content, 100) : '暂无消息'
-              }}
-            </div>
-            <div v-if="convo.unreadCount > 0" class="unread-count-badge">
-              {{ convo.unreadCount }}
-            </div>
-          </div>
-        </div>
-      </div>
+    <div v-else-if="error" class="error-container">
+      <div class="error-text">{{ error }}</div>
     </div>
 
-    <div v-else>
-      <div v-if="channelsLoading" class="loading-message">
-        <l-hatch size="28" stroke="4" speed="3.5" color="var(--primary-color)"></l-hatch>
+    <div v-if="!loading" class="search-container">
+      <SearchPersonDropdown />
+    </div>
+
+    <div v-if="!loading && conversations.length === 0" class="empty-container">
+      <BasePlaceholder v-if="conversations.length === 0" text="暂无会话" icon="fas fa-inbox" />
+    </div>
+
+    <div
+      v-if="!loading"
+      v-for="convo in conversations"
+      :key="convo.id"
+      class="conversation-item"
+      @click="goToConversation(convo.id)"
+    >
+      <div class="conversation-avatar">
+        <img
+          :src="getOtherParticipant(convo)?.avatar || '/default-avatar.svg'"
+          :alt="getOtherParticipant(convo)?.username || '用户'"
+          class="avatar-img"
+          @error="handleAvatarError"
+        />
       </div>
-      <div v-else-if="channelsError" class="error-container">
-        <div class="error-text">{{ channelsError }}</div>
-      </div>
-      <div v-else-if="channels.length === 0" class="empty-container">
-        <div class="empty-text">暂无频道</div>
-      </div>
-      <div
-        v-for="channel in channels"
-        :key="channel.id"
-        class="conversation-item"
-        @click="goToChannel(channel)"
-      >
-        <div class="conversation-avatar" style="position: relative">
-          <img
-            :src="channel.avatar || '/default-avatar.svg'"
-            :alt="channel.name"
-            class="avatar-img"
-            @error="handleAvatarError"
-          />
-          <span v-if="channel.unreadCount > 0" class="unread-dot"></span>
-        </div>
-        <div class="conversation-content">
-          <div class="conversation-header">
-            <div class="participant-name">{{ channel.name }}</div>
+
+      <div class="conversation-content">
+        <div class="conversation-header">
+          <div class="participant-name">
+            {{ getOtherParticipant(convo)?.username || '未知用户' }}
           </div>
-          <div class="last-message-row">
-            <div class="last-message">{{ channel.description }}</div>
+          <div class="message-time">
+            {{ formatTime(convo.lastMessage?.createdAt || convo.createdAt) }}
+          </div>
+        </div>
+
+        <div class="last-message-row">
+          <div class="last-message">
+            {{
+              convo.lastMessage ? stripMarkdownLength(convo.lastMessage.content, 100) : '暂无消息'
+            }}
+          </div>
+          <div v-if="convo.unreadCount > 0" class="unread-count-badge">
+            {{ convo.unreadCount }}
           </div>
         </div>
       </div>
@@ -116,15 +66,13 @@ import { useWebSocket } from '~/composables/useWebSocket'
 import { useUnreadCount } from '~/composables/useUnreadCount'
 import TimeManager from '~/utils/time'
 import { stripMarkdownLength } from '~/utils/markdown'
+import SearchPersonDropdown from '~/components/SearchPersonDropdown.vue'
+import BasePlaceholder from '~/components/BasePlaceholder.vue'
 
 const config = useRuntimeConfig()
-const activeTab = ref('messages')
 const conversations = ref([])
 const loading = ref(true)
 const error = ref(null)
-const channels = ref([])
-const channelsLoading = ref(true)
-const channelsError = ref(null)
 const router = useRouter()
 const currentUser = ref(null)
 const API_BASE_URL = config.public.apiBaseUrl
@@ -147,7 +95,7 @@ async function fetchConversations() {
       throw new Error(`HTTP error! status: ${response.status}`)
     }
     const data = await response.json()
-    conversations.value = data.filter((c) => !c.channel)
+    conversations.value = data
   } catch (e) {
     error.value = '无法加载会话列表。'
   } finally {
@@ -155,28 +103,6 @@ async function fetchConversations() {
   }
 }
 
-async function fetchChannels() {
-  const token = getToken()
-  if (!token) {
-    toast.error('请先登录')
-    return
-  }
-  try {
-    const response = await fetch(`${API_BASE_URL}/api/channels`, {
-      method: 'GET',
-      headers: { Authorization: `Bearer ${token}` },
-    })
-    if (!response.ok) {
-      throw new Error(`HTTP error! status: ${response.status}`)
-    }
-    channels.value = await response.json()
-  } catch (e) {
-    channelsError.value = '无法加载频道。'
-  } finally {
-    channelsLoading.value = false
-  }
-}
-
 // 获取对话中的另一个参与者（非当前用户）
 function getOtherParticipant(conversation) {
   if (!currentUser.value || !conversation.participants) return null
@@ -200,7 +126,6 @@ onActivated(async () => {
 
   if (currentUser.value) {
     await fetchConversations()
-    await fetchChannels()
     refreshGlobalUnreadCount() // Refresh global count when entering the list
     const token = getToken()
     if (token && !isConnected.value) {
@@ -222,7 +147,6 @@ watch(isConnected, (newValue) => {
 
     subscription = subscribe(destination, (message) => {
       fetchConversations()
-      fetchChannels()
     })
   }
 })
@@ -237,19 +161,6 @@ onUnmounted(() => {
 function goToConversation(id) {
   router.push(`/message-box/${id}`)
 }
-
-async function goToChannel(channel) {
-  const token = getToken()
-  if (!token) {
-    toast.error('请先登录')
-    return
-  }
-  await fetch(`${API_BASE_URL}/api/channels/${channel.id}/join`, {
-    method: 'POST',
-    headers: { Authorization: `Bearer ${token}` },
-  })
-  router.push(`/message-box/${channel.conversationId}`)
-}
 </script>
 
 <style scoped>
@@ -258,22 +169,6 @@ async function goToChannel(channel) {
   padding: 20px;
 }
 
-.tabs {
-  display: flex;
-  border-bottom: 1px solid #e5e7eb;
-  margin-bottom: 10px;
-}
-
-.tab {
-  padding: 8px 16px;
-  cursor: pointer;
-}
-
-.tab.active {
-  border-bottom: 2px solid var(--primary-color);
-  font-weight: 600;
-}
-
 .loading-message {
   display: flex;
   justify-content: center;
@@ -281,6 +176,10 @@ async function goToChannel(channel) {
   height: 300px;
 }
 
+.search-container {
+  margin-bottom: 24px;
+}
+
 .messages-header {
   margin-bottom: 24px;
 }
@@ -392,16 +291,6 @@ async function goToChannel(channel) {
   flex-shrink: 0;
 }
 
-.unread-dot {
-  position: absolute;
-  top: 0;
-  right: 0;
-  width: 8px;
-  height: 8px;
-  background-color: #f56c6c;
-  border-radius: 50%;
-}
-
 /* 响应式设计 */
 @media (max-width: 768px) {
   .messages-container {

frontend_nuxt/pages/users/[id].vue

@@ -12,25 +12,27 @@
         <div class="profile-page-header-user-info">
           <div class="profile-page-header-user-info-name">{{ user.username }}</div>
           <div class="profile-page-header-user-info-description">{{ user.introduction }}</div>
-          <div
-            v-if="!isMine && !subscribed"
-            class="profile-page-header-subscribe-button"
-            @click="subscribeUser"
-          >
-            <i class="fas fa-user-plus"></i>
-            关注
-          </div>
-          <div
-            v-if="!isMine && subscribed"
-            class="profile-page-header-unsubscribe-button"
-            @click="unsubscribeUser"
-          >
-            <i class="fas fa-user-minus"></i>
-            取消关注
-          </div>
-          <div v-if="!isMine" class="profile-page-header-subscribe-button" @click="sendMessage">
-            <i class="fas fa-paper-plane"></i>
-            发私信
+          <div class="profile-page-header-user-info-buttons">
+            <div
+              v-if="!isMine && !subscribed"
+              class="profile-page-header-subscribe-button"
+              @click="subscribeUser"
+            >
+              <i class="fas fa-user-plus"></i>
+              关注
+            </div>
+            <div
+              v-if="!isMine && subscribed"
+              class="profile-page-header-unsubscribe-button"
+              @click="unsubscribeUser"
+            >
+              <i class="fas fa-user-minus"></i>
+              取消关注
+            </div>
+            <div v-if="!isMine" class="profile-page-header-subscribe-button" @click="sendMessage">
+              <i class="fas fa-paper-plane"></i>
+              发私信
+            </div>
           </div>
           <LevelProgress
             :exp="levelInfo.exp"
@@ -640,6 +642,12 @@ watch(selectedTab, async (val) => {
   color: #666;
 }
 
+.profile-page-header-user-info-buttons {
+  display: flex;
+  flex-direction: row;
+  gap: 10px;
+}
+
 .profile-page-header-subscribe-button {
   display: flex;
   flex-direction: row;