聊天增加图片功能

backend/internal/modules/chat/dto.go

@@ -52,7 +52,8 @@ type MessageDTO struct {
 }
 
 type SendMessageRequest struct {
-	Content string `json:"content" binding:"required"`
+	Content        string   `json:"content"`
+	AttachmentURLS []string `json:"attachment_urls"`
 }
 
 type TransferRequest struct {

backend/internal/modules/chat/handler.go

@@ -340,7 +340,7 @@ func (h *Handler) send(c *gin.Context, principal Principal) {
 	}
 	var req SendMessageRequest
 	if err := c.ShouldBindJSON(&req); err != nil {
-		response.BadRequest(c, "消息内容不能为空")
+		response.BadRequest(c, "消息格式不正确")
 		return
 	}
 	message, err := h.service.SendMessage(principal, id, req)

backend/internal/modules/chat/repository.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"strconv"
+	"strings"
 	"time"
 
 	"hfb_sys/backend/internal/model"
@@ -312,13 +313,13 @@ func (r *Repository) SendMessage(principal Principal, conversationID uint64, req
 			SenderRole:     participant.Role,
 			ContentType:    "text",
 			Content:        req.Content,
-			AttachmentURLS: emptyJSONList(),
+			AttachmentURLS: encodeStringList(req.AttachmentURLS),
 		}
 		if err := tx.Create(&message).Error; err != nil {
 			return err
 		}
 		conversation.LastMessageID = &message.ID
-		conversation.LastMessagePreview = truncatePreview(message.Content)
+		conversation.LastMessagePreview = messagePreview(message.Content, req.AttachmentURLS)
 		conversation.LastMessageAt = &message.CreatedAt
 		if err := tx.Save(&conversation).Error; err != nil {
 			return err
@@ -708,6 +709,17 @@ func truncatePreview(content string) string {
 	return string(runes[:80])
 }
 
+func messagePreview(content string, attachments []string) string {
+	content = strings.TrimSpace(content)
+	if content != "" {
+		return truncatePreview(content)
+	}
+	if len(attachments) > 0 {
+		return "[图片]"
+	}
+	return ""
+}
+
 // TransferConversation 转接会话给其他客服
 func (r *Repository) TransferConversation(principal Principal, conversationID uint64, toAdminID uint64) error {
 	return r.db.Transaction(func(tx *gorm.DB) error {
@@ -908,6 +920,11 @@ func emptyJSONList() datatypes.JSON {
 	return datatypes.JSON(raw)
 }
 
+func encodeStringList(items []string) datatypes.JSON {
+	raw, _ := json.Marshal(items)
+	return datatypes.JSON(raw)
+}
+
 // UpdateRemark 更新会话备注
 func (r *Repository) UpdateRemark(principal Principal, conversationID uint64, remark string) error {
 	return r.db.Model(&model.ChatParticipant{}).

backend/internal/modules/chat/service.go

@@ -2,6 +2,7 @@ package chat
 
 import (
 	"errors"
+	"net/url"
 	"strings"
 )
 
@@ -63,15 +64,54 @@ func (s *Service) SendMessage(principal Principal, conversationID uint64, req Se
 		return nil, ErrDependencyUnavailable
 	}
 	req.Content = strings.TrimSpace(req.Content)
-	if conversationID == 0 || req.Content == "" {
+	attachments, ok := normalizeAttachmentURLS(req.AttachmentURLS)
+	req.AttachmentURLS = attachments
+	if conversationID == 0 || (req.Content == "" && len(req.AttachmentURLS) == 0) {
 		return nil, ErrInvalidMessage
 	}
 	if len([]rune(req.Content)) > 1000 {
 		return nil, ErrInvalidMessage
 	}
+	if !ok {
+		return nil, ErrInvalidMessage
+	}
 	return s.repo.SendMessage(principal, conversationID, req)
 }
 
+func normalizeAttachmentURLS(items []string) ([]string, bool) {
+	if len(items) > 9 {
+		return nil, false
+	}
+	result := make([]string, 0, len(items))
+	for _, item := range items {
+		value := strings.TrimSpace(item)
+		if value == "" {
+			continue
+		}
+		if len(value) > 500 || strings.Contains(value, "..") {
+			return nil, false
+		}
+		parsed, err := url.Parse(value)
+		if err != nil {
+			return nil, false
+		}
+		if parsed.Host != "" {
+			return nil, false
+		}
+		switch parsed.Path {
+		case "/api/files/object", "/api/admin/files/object", "/api/public/files/object":
+		default:
+			return nil, false
+		}
+		key := strings.TrimSpace(parsed.Query().Get("key"))
+		if key == "" || strings.Contains(key, "..") {
+			return nil, false
+		}
+		result = append(result, value)
+	}
+	return result, true
+}
+
 func (s *Service) MarkRead(principal Principal, conversationID uint64) error {
 	if s.repo == nil {
 		return ErrDependencyUnavailable

backend/internal/modules/file/service.go

@@ -41,10 +41,10 @@ func (s *Service) Upload(req uploadRequest) (*UploadDTO, error) {
 	if contentType == "" {
 		contentType = req.Header.Header.Get("Content-Type")
 	}
-	if !allowedContentTypes[contentType] {
+	scene := normalizeScene(req.Scene)
+	if !allowedContentTypes[contentType] || (scene == "chat" && !strings.HasPrefix(contentType, "image/")) {
 		return nil, ErrInvalidFile
 	}
-	scene := normalizeScene(req.Scene)
 	key, err := s.storage.Put(req.Context, scene, req.Header, req.Reader, contentType)
 	if err != nil {
 		return nil, err
@@ -65,7 +65,7 @@ func (s *Service) Upload(req uploadRequest) (*UploadDTO, error) {
 func normalizeScene(scene string) string {
 	scene = strings.TrimSpace(strings.ToLower(scene))
 	switch scene {
-	case "listing", "handoff", "dispute", "realname", "avatar", "home-banner":
+	case "listing", "handoff", "dispute", "realname", "avatar", "home-banner", "chat":
 		return scene
 	default:
 		return "misc"

frontend/components.d.ts

@@ -11,6 +11,7 @@ export {}
 /* prettier-ignore */
 declare module 'vue' {
   export interface GlobalComponents {
+    ChatAttachmentImage: typeof import('./src/components/ChatAttachmentImage.vue')['default']
     ElAlert: typeof import('element-plus/es')['ElAlert']
     ElAvatar: typeof import('element-plus/es')['ElAvatar']
     ElBreadcrumb: typeof import('element-plus/es')['ElBreadcrumb']

frontend/src/api/chats.ts

@@ -74,8 +74,11 @@ export async function fetchChatMessages(id: number, page = 1, pageSize = 100) {
   return data.data
 }
 
-export async function sendChatMessage(id: number, content: string) {
+export async function sendChatMessage(id: number, content: string, attachmentUrls: string[] = []) {
-  const { data } = await apiClient.post<ApiResponse<ChatMessage>>(`/chats/${id}/messages`, { content })
+  const { data } = await apiClient.post<ApiResponse<ChatMessage>>(`/chats/${id}/messages`, {
+    content,
+    attachment_urls: attachmentUrls,
+  })
   return data.data
 }
 
@@ -103,8 +106,11 @@ export async function fetchAdminChatMessages(id: number, page = 1, pageSize = 10
   return data.data
 }
 
-export async function sendAdminChatMessage(id: number, content: string) {
+export async function sendAdminChatMessage(id: number, content: string, attachmentUrls: string[] = []) {
-  const { data } = await apiClient.post<ApiResponse<ChatMessage>>(`/admin/chats/${id}/messages`, { content })
+  const { data } = await apiClient.post<ApiResponse<ChatMessage>>(`/admin/chats/${id}/messages`, {
+    content,
+    attachment_urls: attachmentUrls,
+  })
   return data.data
 }
 

frontend/src/components/ChatAttachmentImage.vue

@@ -0,0 +1,90 @@
+<script setup lang="ts">
+import { onBeforeUnmount, ref, watch } from 'vue'
+import { fetchAdminFileBlob, fetchFileBlobByURL } from '@/api/files'
+
+const props = defineProps<{
+  source: string
+  admin?: boolean
+}>()
+
+const objectURL = ref('')
+const failed = ref(false)
+
+function extractObjectKey(value: string) {
+  try {
+    const parsed = new URL(value, window.location.origin)
+    return parsed.searchParams.get('key') || ''
+  } catch {
+    return ''
+  }
+}
+
+function revokeCurrentURL() {
+  if (!objectURL.value) return
+  URL.revokeObjectURL(objectURL.value)
+  objectURL.value = ''
+}
+
+async function loadImage() {
+  revokeCurrentURL()
+  failed.value = false
+  if (!props.source) {
+    failed.value = true
+    return
+  }
+  try {
+    const key = extractObjectKey(props.source)
+    const blob = props.admin && key
+      ? await fetchAdminFileBlob(key)
+      : await fetchFileBlobByURL(props.source)
+    objectURL.value = URL.createObjectURL(blob)
+  } catch {
+    failed.value = true
+  }
+}
+
+function openImage() {
+  if (!objectURL.value) return
+  window.open(objectURL.value, '_blank')
+}
+
+watch(() => [props.source, props.admin] as const, loadImage, { immediate: true })
+
+onBeforeUnmount(revokeCurrentURL)
+</script>
+
+<template>
+  <button v-if="objectURL" class="chat-image-button" type="button" @click="openImage">
+    <img :src="objectURL" alt="聊天图片" loading="lazy">
+  </button>
+  <span v-else class="chat-image-fallback">{{ failed ? '图片加载失败' : '图片加载中' }}</span>
+</template>
+
+<style scoped>
+.chat-image-button {
+  display: block;
+  max-width: 220px;
+  padding: 0;
+  overflow: hidden;
+  border: 0;
+  border-radius: 8px;
+  background: transparent;
+  cursor: zoom-in;
+}
+
+.chat-image-button img {
+  display: block;
+  width: 100%;
+  max-height: 260px;
+  object-fit: cover;
+}
+
+.chat-image-fallback {
+  display: inline-block;
+  padding: 8px 10px;
+  border-radius: 8px;
+  background: #eef2f7;
+  color: #6b7280;
+  font-size: 12px;
+}
+</style>

frontend/src/views/account/ChatView.vue

@@ -2,7 +2,7 @@
 import { computed, nextTick, onMounted, ref, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
-import { ArrowLeft, Loading } from '@element-plus/icons-vue'
+import { ArrowLeft, Close, Loading, Picture } from '@element-plus/icons-vue'
 import {
   fetchChat,
   fetchChatMessages,
@@ -11,6 +11,8 @@ import {
   type ChatConversation,
   type ChatMessage,
 } from '@/api/chats'
+import { uploadFile } from '@/api/files'
+import ChatAttachmentImage from '@/components/ChatAttachmentImage.vue'
 import { useChatSSE, type ChatEvent } from '@/composables/useChatSSE'
 import { formatDateMinute } from '@/utils/time'
 
@@ -22,10 +24,14 @@ const conversation = ref<ChatConversation | null>(null)
 const messages = ref<ChatMessage[]>([])
 const loading = ref(false)
 const sending = ref(false)
+const uploading = ref(false)
 const content = ref('')
+const attachments = ref<string[]>([])
 const listRef = ref<HTMLElement | null>(null)
+const fileInputRef = ref<HTMLInputElement | null>(null)
 
 const conversationID = computed(() => Number(route.params.id || 0))
+const canSend = computed(() => content.value.trim() !== '' || attachments.value.length > 0)
 const memberText = computed(() => {
   const participants = conversation.value?.participants || []
   if (participants.length === 0) return conversation.value?.type === 'general_support' ? '平台客服' : '订单群聊'
@@ -107,12 +113,14 @@ async function loadMessages(scrollToBottom = true) {
 
 async function handleSend() {
   const text = content.value.trim()
-  if (!text || sending.value) return
+  const imageUrls = [...attachments.value]
+  if ((!text && imageUrls.length === 0) || sending.value || uploading.value) return
   sending.value = true
   try {
-    const sent = await sendChatMessage(conversationID.value, text)
+    const sent = await sendChatMessage(conversationID.value, text, imageUrls)
     appendMessage(sent)
     content.value = ''
+    attachments.value = []
     await loadConversation()
   } catch {
     ElMessage.error('发送失败')
@@ -121,6 +129,45 @@ async function handleSend() {
   }
 }
 
+function pickImages() {
+  if (uploading.value || attachments.value.length >= 9) return
+  fileInputRef.value?.click()
+}
+
+async function handleImageChange(event: Event) {
+  const input = event.target as HTMLInputElement
+  const files = Array.from(input.files || [])
+  input.value = ''
+  if (files.length === 0) return
+  const slots = 9 - attachments.value.length
+  if (slots <= 0) {
+    ElMessage.warning('每条消息最多发送 9 张图片')
+    return
+  }
+  uploading.value = true
+  try {
+    for (const file of files.slice(0, slots)) {
+      if (!['image/jpeg', 'image/png', 'image/webp'].includes(file.type) || file.size > 10 * 1024 * 1024) {
+        ElMessage.warning(`${file.name} 不符合图片规则`)
+        continue
+      }
+      const uploaded = await uploadFile(file, 'chat')
+      attachments.value.push(uploaded.url)
+    }
+    if (files.length > slots) {
+      ElMessage.warning('每条消息最多发送 9 张图片')
+    }
+  } catch {
+    ElMessage.error('图片上传失败')
+  } finally {
+    uploading.value = false
+  }
+}
+
+function removeAttachment(index: number) {
+  attachments.value.splice(index, 1)
+}
+
 function appendMessage(message: ChatMessage) {
   if (messages.value.some(item => item.id === message.id)) return
   messages.value = [...messages.value, message]
@@ -200,7 +247,14 @@ function handleKeydown(e: KeyboardEvent) {
             <div class="avatar" :class="{ self: item.is_self }">{{ roleLabel(item.sender_role).slice(0, 1) }}</div>
             <div class="bubble-wrap" :class="{ self: item.is_self }">
               <span class="sender-name">{{ senderLabel(item) }}</span>
-              <div class="bubble">{{ item.content }}</div>
+              <div v-if="item.content" class="bubble">{{ item.content }}</div>
+              <div v-if="item.attachment_urls.length > 0" class="message-attachments">
+                <ChatAttachmentImage
+                  v-for="url in item.attachment_urls"
+                  :key="url"
+                  :source="url"
+                />
+              </div>
               <span class="message-time">{{ formatDateMinute(item.created_at) }}</span>
             </div>
           </template>
@@ -209,6 +263,22 @@ function handleKeydown(e: KeyboardEvent) {
 
       <!-- Composer -->
       <div class="composer">
+        <div v-if="attachments.length > 0" class="pending-attachments">
+          <div v-for="(url, index) in attachments" :key="url" class="pending-item">
+            <ChatAttachmentImage :source="url" />
+            <button type="button" class="remove-attachment" @click="removeAttachment(index)">
+              <el-icon :size="14"><Close /></el-icon>
+            </button>
+          </div>
+        </div>
+        <input
+          ref="fileInputRef"
+          class="hidden-file"
+          type="file"
+          accept="image/jpeg,image/png,image/webp"
+          multiple
+          @change="handleImageChange"
+        >
         <el-input
           v-model="content"
           type="textarea"
@@ -221,9 +291,14 @@ function handleKeydown(e: KeyboardEvent) {
         />
         <div class="composer-actions">
           <span class="composer-hint">Enter 发送，Shift+Enter 换行</span>
-          <el-button type="primary" :disabled="!content.trim() || sending" :loading="sending" @click="handleSend">
+          <div class="composer-buttons">
-            发送
+            <el-button :icon="Picture" :loading="uploading" :disabled="attachments.length >= 9" @click="pickImages">
-          </el-button>
+              图片
+            </el-button>
+            <el-button type="primary" :disabled="!canSend || sending || uploading" :loading="sending" @click="handleSend">
+              发送
+            </el-button>
+          </div>
         </div>
       </div>
     </div>
@@ -376,6 +451,12 @@ function handleKeydown(e: KeyboardEvent) {
   color: #0f5132;
 }
 
+.message-attachments {
+  display: grid;
+  gap: 6px;
+  margin-top: 6px;
+}
+
 .message-time {
   margin-top: 4px;
   color: #a1a8b4;
@@ -400,6 +481,46 @@ function handleKeydown(e: KeyboardEvent) {
   background: #fafbfc;
 }
 
+.pending-attachments {
+  display: flex;
+  gap: 8px;
+  margin-bottom: 10px;
+  overflow-x: auto;
+}
+
+.pending-item {
+  position: relative;
+  flex: none;
+}
+
+.pending-item :deep(.chat-image-button) {
+  width: 86px;
+  height: 86px;
+}
+
+.pending-item :deep(.chat-image-button img) {
+  height: 86px;
+}
+
+.remove-attachment {
+  position: absolute;
+  top: 4px;
+  right: 4px;
+  display: grid;
+  width: 22px;
+  height: 22px;
+  place-items: center;
+  border: 0;
+  border-radius: 50%;
+  background: rgba(17, 24, 39, 0.72);
+  color: #fff;
+  cursor: pointer;
+}
+
+.hidden-file {
+  display: none;
+}
+
 .composer-actions {
   display: flex;
   align-items: center;
@@ -407,6 +528,11 @@ function handleKeydown(e: KeyboardEvent) {
   margin-top: 8px;
 }
 
+.composer-buttons {
+  display: flex;
+  gap: 8px;
+}
+
 .composer-hint {
   color: #a0aab6;
   font-size: 12px;

frontend/src/views/admin/AdminChatsView.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { computed, nextTick, onMounted, ref } from 'vue'
 import { ElMessage } from 'element-plus'
+import { Close, Picture } from '@element-plus/icons-vue'
 import {
   fetchAdminChat,
   fetchAdminChatMessages,
@@ -13,6 +14,8 @@ import {
   type ChatMessage,
   type QuickReply,
 } from '@/api/chats'
+import { uploadAdminFile } from '@/api/files'
+import ChatAttachmentImage from '@/components/ChatAttachmentImage.vue'
 import { useChatSSE, type ChatEvent } from '@/composables/useChatSSE'
 import { formatDateMinute } from '@/utils/time'
 import TransferDialog from './components/TransferDialog.vue'
@@ -26,8 +29,11 @@ const messages = ref<ChatMessage[]>([])
 const loading = ref(false)
 const messageLoading = ref(false)
 const sending = ref(false)
+const uploading = ref(false)
 const content = ref('')
+const attachments = ref<string[]>([])
 const listRef = ref<HTMLElement | null>(null)
+const fileInputRef = ref<HTMLInputElement | null>(null)
 const filter = ref<'all' | 'mine' | 'unassigned'>('mine')
 const transferVisible = ref(false)
 const quickReplyVisible = ref(false)
@@ -43,6 +49,7 @@ const activeMembers = computed(() => {
     return `${roleLabel(item.role)}：${name}`
   }).join(' / ')
 })
+const canSend = computed(() => content.value.trim() !== '' || attachments.value.length > 0)
 
 function getParticipantRemark(participant: any) {
   if (!active.value) return ''
@@ -116,6 +123,7 @@ async function openConversation(item: ChatConversation) {
     await loadConversations(false)
     remarkEditing.value = false
     remarkValue.value = ''
+    attachments.value = []
   } catch {
     ElMessage.error('会话详情加载失败')
   } finally {
@@ -134,11 +142,15 @@ async function loadMessages(id: number, scroll = true) {
 
 async function handleSend() {
   const text = content.value.trim()
-  if (!active.value || !text || sending.value) return
+  const imageUrls = [...attachments.value]
+  if (!active.value || (!text && imageUrls.length === 0) || sending.value || uploading.value) return
   sending.value = true
   try {
-    await sendAdminChatMessage(active.value.id, text)
+    const sent = await sendAdminChatMessage(active.value.id, text, imageUrls)
+    appendMessage(sent)
     content.value = ''
+    attachments.value = []
+    await loadConversations(false)
   } catch {
     ElMessage.error('发送失败')
   } finally {
@@ -146,6 +158,51 @@ async function handleSend() {
   }
 }
 
+function appendMessage(message: ChatMessage) {
+  if (messages.value.some(item => item.id === message.id)) return
+  messages.value = [...messages.value, message]
+  nextTick(() => scrollBottom())
+}
+
+function pickImages() {
+  if (uploading.value || attachments.value.length >= 9) return
+  fileInputRef.value?.click()
+}
+
+async function handleImageChange(event: Event) {
+  const input = event.target as HTMLInputElement
+  const files = Array.from(input.files || [])
+  input.value = ''
+  if (files.length === 0) return
+  const slots = 9 - attachments.value.length
+  if (slots <= 0) {
+    ElMessage.warning('每条消息最多发送 9 张图片')
+    return
+  }
+  uploading.value = true
+  try {
+    for (const file of files.slice(0, slots)) {
+      if (!['image/jpeg', 'image/png', 'image/webp'].includes(file.type) || file.size > 10 * 1024 * 1024) {
+        ElMessage.warning(`${file.name} 不符合图片规则`)
+        continue
+      }
+      const uploaded = await uploadAdminFile(file, 'chat')
+      attachments.value.push(uploaded.url)
+    }
+    if (files.length > slots) {
+      ElMessage.warning('每条消息最多发送 9 张图片')
+    }
+  } catch {
+    ElMessage.error('图片上传失败')
+  } finally {
+    uploading.value = false
+  }
+}
+
+function removeAttachment(index: number) {
+  attachments.value.splice(index, 1)
+}
+
 function handleQuickReplySelect(reply: QuickReply) {
   content.value = reply.content
   quickReplyVisible.value = false
@@ -307,13 +364,29 @@ function getSupportName(item: ChatConversation) {
               </template>
               <template v-else>
                 <small>{{ senderLabel(item) }} · {{ formatDateMinute(item.created_at) }}</small>
-                <p>{{ item.content }}</p>
+                <p v-if="item.content">{{ item.content }}</p>
+                <div v-if="item.attachment_urls.length > 0" class="message-attachments">
+                  <ChatAttachmentImage
+                    v-for="url in item.attachment_urls"
+                    :key="url"
+                    :source="url"
+                    admin
+                  />
+                </div>
               </template>
             </div>
           </div>
 
           <footer class="composer">
             <div class="composer-tools">
+              <input
+                ref="fileInputRef"
+                class="hidden-file"
+                type="file"
+                accept="image/jpeg,image/png,image/webp"
+                multiple
+                @change="handleImageChange"
+              >
               <el-dropdown trigger="click" @command="handleQuickReplySelect">
                 <el-button size="small" text>快捷回复</el-button>
                 <template #dropdown>
@@ -332,6 +405,17 @@ function getSupportName(item: ChatConversation) {
                   </el-dropdown-menu>
                 </template>
               </el-dropdown>
+              <el-button size="small" text :icon="Picture" :loading="uploading" :disabled="attachments.length >= 9" @click="pickImages">
+                图片
+              </el-button>
+            </div>
+            <div v-if="attachments.length > 0" class="pending-attachments">
+              <div v-for="(url, index) in attachments" :key="url" class="pending-item">
+                <ChatAttachmentImage :source="url" admin />
+                <button type="button" class="remove-attachment" @click="removeAttachment(index)">
+                  <el-icon :size="14"><Close /></el-icon>
+                </button>
+              </div>
             </div>
             <div class="composer-input">
               <el-input
@@ -343,7 +427,7 @@ function getSupportName(item: ChatConversation) {
                 placeholder="输入客服回复"
                 @keydown.enter.exact.prevent="handleSend"
               />
-              <el-button type="primary" :loading="sending" :disabled="!content.trim()" @click="handleSend">发送</el-button>
+              <el-button type="primary" :loading="sending" :disabled="!canSend || uploading" @click="handleSend">发送</el-button>
             </div>
           </footer>
         </template>
@@ -565,6 +649,16 @@ function getSupportName(item: ChatConversation) {
   background: #dff5eb;
 }
 
+.message-attachments {
+  display: grid;
+  justify-items: start;
+  gap: 6px;
+}
+
+.message-row.self .message-attachments {
+  justify-items: end;
+}
+
 .message-row.system span {
   display: inline-block;
   padding: 5px 10px;
@@ -579,10 +673,53 @@ function getSupportName(item: ChatConversation) {
 }
 
 .composer-tools {
+  display: flex;
+  gap: 8px;
+  align-items: center;
   padding: 8px 14px;
   border-bottom: 1px solid #f0f0f0;
 }
 
+.hidden-file {
+  display: none;
+}
+
+.pending-attachments {
+  display: flex;
+  gap: 8px;
+  padding: 10px 14px 0;
+  overflow-x: auto;
+}
+
+.pending-item {
+  position: relative;
+  flex: none;
+}
+
+.pending-item :deep(.chat-image-button) {
+  width: 84px;
+  height: 84px;
+}
+
+.pending-item :deep(.chat-image-button img) {
+  height: 84px;
+}
+
+.remove-attachment {
+  position: absolute;
+  top: 4px;
+  right: 4px;
+  display: grid;
+  width: 22px;
+  height: 22px;
+  place-items: center;
+  border: 0;
+  border-radius: 50%;
+  background: rgba(17, 24, 39, 0.72);
+  color: #fff;
+  cursor: pointer;
+}
+
 .composer-input {
   display: grid;
   grid-template-columns: minmax(0, 1fr) 88px;

frontend/src/views/mobile/MobileChatView.vue

@@ -10,6 +10,8 @@ import {
   type ChatConversation,
   type ChatMessage,
 } from '@/api/chats'
+import { uploadFile } from '@/api/files'
+import ChatAttachmentImage from '@/components/ChatAttachmentImage.vue'
 import { useChatSSE, type ChatEvent } from '@/composables/useChatSSE'
 import { formatDateMinute } from '@/utils/time'
 
@@ -21,10 +23,14 @@ const conversation = ref<ChatConversation | null>(null)
 const messages = ref<ChatMessage[]>([])
 const loading = ref(false)
 const sending = ref(false)
+const uploading = ref(false)
 const content = ref('')
+const attachments = ref<string[]>([])
 const listRef = ref<HTMLElement | null>(null)
+const fileInputRef = ref<HTMLInputElement | null>(null)
 
 const conversationID = computed(() => Number(route.params.id || 0))
+const canSend = computed(() => content.value.trim() !== '' || attachments.value.length > 0)
 const memberText = computed(() => {
   const participants = conversation.value?.participants || []
   if (participants.length === 0) return conversation.value?.type === 'general_support' ? '平台客服' : '订单群聊'
@@ -100,11 +106,14 @@ async function loadMessages(scrollToBottom = true) {
 
 async function handleSend() {
   const text = content.value.trim()
-  if (!text || sending.value) return
+  const imageUrls = [...attachments.value]
+  if ((!text && imageUrls.length === 0) || sending.value || uploading.value) return
   sending.value = true
   try {
-    await sendChatMessage(conversationID.value, text)
+    const sent = await sendChatMessage(conversationID.value, text, imageUrls)
+    appendMessage(sent)
     content.value = ''
+    attachments.value = []
   } catch {
     showToast({ message: '发送失败', icon: 'cross' })
   } finally {
@@ -112,6 +121,51 @@ async function handleSend() {
   }
 }
 
+function appendMessage(message: ChatMessage) {
+  if (messages.value.some(item => item.id === message.id)) return
+  messages.value = [...messages.value, message]
+  nextTick(() => scrollBottom())
+}
+
+function pickImages() {
+  if (uploading.value || attachments.value.length >= 9) return
+  fileInputRef.value?.click()
+}
+
+async function handleImageChange(event: Event) {
+  const input = event.target as HTMLInputElement
+  const files = Array.from(input.files || [])
+  input.value = ''
+  if (files.length === 0) return
+  const slots = 9 - attachments.value.length
+  if (slots <= 0) {
+    showToast('每条消息最多发送 9 张图片')
+    return
+  }
+  uploading.value = true
+  try {
+    for (const file of files.slice(0, slots)) {
+      if (!['image/jpeg', 'image/png', 'image/webp'].includes(file.type) || file.size > 10 * 1024 * 1024) {
+        showToast(`${file.name} 不符合图片规则`)
+        continue
+      }
+      const uploaded = await uploadFile(file, 'chat')
+      attachments.value.push(uploaded.url)
+    }
+    if (files.length > slots) {
+      showToast('每条消息最多发送 9 张图片')
+    }
+  } catch {
+    showToast({ message: '图片上传失败', icon: 'cross' })
+  } finally {
+    uploading.value = false
+  }
+}
+
+function removeAttachment(index: number) {
+  attachments.value.splice(index, 1)
+}
+
 function scrollBottom() {
   const el = listRef.value
   if (!el) return
@@ -166,7 +220,14 @@ function senderLabel(message: ChatMessage) {
           <div class="avatar">{{ roleLabel(item.sender_role).slice(0, 1) }}</div>
           <div class="bubble-wrap">
             <span class="sender-name">{{ senderLabel(item) }}</span>
-            <div class="bubble">{{ item.content }}</div>
+            <div v-if="item.content" class="bubble">{{ item.content }}</div>
+            <div v-if="item.attachment_urls.length > 0" class="message-attachments">
+              <ChatAttachmentImage
+                v-for="url in item.attachment_urls"
+                :key="url"
+                :source="url"
+              />
+            </div>
             <span class="message-time">{{ formatDateMinute(item.created_at) }}</span>
           </div>
         </template>
@@ -174,6 +235,25 @@ function senderLabel(message: ChatMessage) {
     </section>
 
     <footer class="composer">
+      <input
+        ref="fileInputRef"
+        class="hidden-file"
+        type="file"
+        accept="image/jpeg,image/png,image/webp"
+        multiple
+        @change="handleImageChange"
+      >
+      <div v-if="attachments.length > 0" class="pending-attachments">
+        <div v-for="(url, index) in attachments" :key="url" class="pending-item">
+          <ChatAttachmentImage :source="url" />
+          <button type="button" class="remove-attachment" @click="removeAttachment(index)">
+            <van-icon name="cross" :size="12" />
+          </button>
+        </div>
+      </div>
+      <button class="tool-btn" type="button" :disabled="uploading || attachments.length >= 9" @click="pickImages">
+        <van-icon name="photo-o" :size="20" />
+      </button>
       <van-field
         v-model="content"
         class="composer-input"
@@ -184,7 +264,7 @@ function senderLabel(message: ChatMessage) {
         placeholder="发送消息"
         @keydown.enter.prevent="handleSend"
       />
-      <button class="send-btn" type="button" :disabled="!content.trim() || sending" @click="handleSend">
+      <button class="send-btn" type="button" :disabled="!canSend || sending || uploading" @click="handleSend">
         <van-icon name="guide-o" :size="20" />
       </button>
     </footer>
@@ -323,6 +403,16 @@ function senderLabel(message: ChatMessage) {
   background: #dff5eb;
 }
 
+.message-attachments {
+  display: grid;
+  gap: 6px;
+  margin-top: 6px;
+}
+
+.message-attachments :deep(.chat-image-button) {
+  max-width: min(62vw, 220px);
+}
+
 .message-time {
   margin-top: 4px;
   color: #a1a8b4;
@@ -342,7 +432,7 @@ function senderLabel(message: ChatMessage) {
 
 .composer {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) 42px;
+  grid-template-columns: 40px minmax(0, 1fr) 42px;
   gap: 8px;
   align-items: end;
   padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
@@ -350,12 +440,66 @@ function senderLabel(message: ChatMessage) {
   background: #fff;
 }
 
+.hidden-file {
+  display: none;
+}
+
+.pending-attachments {
+  display: flex;
+  grid-column: 1 / -1;
+  gap: 8px;
+  overflow-x: auto;
+}
+
+.pending-item {
+  position: relative;
+  flex: none;
+}
+
+.pending-item :deep(.chat-image-button) {
+  width: 72px;
+  height: 72px;
+}
+
+.pending-item :deep(.chat-image-button img) {
+  height: 72px;
+}
+
+.remove-attachment {
+  position: absolute;
+  top: 3px;
+  right: 3px;
+  display: grid;
+  width: 20px;
+  height: 20px;
+  place-items: center;
+  border: 0;
+  border-radius: 50%;
+  background: rgba(17, 24, 39, 0.72);
+  color: #fff;
+}
+
 .composer-input {
   border: 1px solid #d9e0e8;
   border-radius: 8px;
   overflow: hidden;
 }
 
+.tool-btn {
+  display: grid;
+  width: 40px;
+  height: 40px;
+  place-items: center;
+  border: 0;
+  border-radius: 8px;
+  background: #eef4ff;
+  color: #1477ff;
+}
+
+.tool-btn:disabled {
+  color: #9ca3af;
+}
+
 .send-btn {
   display: grid;
   width: 40px;