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miniprogram/pages/detect/index.js

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+const { request } = require('../../utils/request')
+
+const QUICK_TEXTS = [
+  '大家好，今晚 8 点社区线上读书会，欢迎参加。',
+  '恭喜中奖领取大额现金，点击链接立即到账。',
+  '本周活动报名已开放，请在群里接龙。',
+  '高薪兼职日结，扫码进群立刻赚钱。'
+]
+
+const VISIBILITY_OPTIONS = [
+  { value: 'public', label: '公开信息发布' },
+  { value: 'private', label: '私有信息发布' },
+  { value: 'direct', label: '用户私信发布' }
+]
+
+Page({
+  data: {
+    text: '',
+    loading: false,
+    result: null,
+    quickTexts: QUICK_TEXTS,
+    visibilityOptions: VISIBILITY_OPTIONS,
+    visibilityIndex: 0,
+    visibility: 'public',
+    recipientUsername: ''
+  },
+
+  formatPercent(value, digits = 2) {
+    const num = Number(value || 0)
+    return `${(num * 100).toFixed(digits)}%`
+  },
+
+  onInput(e) {
+    const field = e.currentTarget.dataset.field
+    this.setData({ [field]: e.detail.value || '' })
+  },
+
+  fillQuick(e) {
+    this.setData({ text: e.currentTarget.dataset.text || '' })
+  },
+
+  onVisibilityChange(e) {
+    const idx = Number(e.detail.value)
+    const row = this.data.visibilityOptions[idx] || this.data.visibilityOptions[0]
+    this.setData({ visibilityIndex: idx, visibility: row.value })
+  },
+
+  async publish() {
+    if (this.data.loading) return
+    const text = (this.data.text || '').trim()
+    if (text.length < 2) {
+      wx.showToast({ title: '请输入至少 2 个字符', icon: 'none' })
+      return
+    }
+
+    const payload = {
+      text,
+      visibility: this.data.visibility
+    }
+
+    if (this.data.visibility === 'direct') {
+      const receiver = (this.data.recipientUsername || '').trim()
+      if (!receiver) {
+        wx.showToast({ title: '私信请填写接收人用户名', icon: 'none' })
+        return
+      }
+      payload.recipient_username = receiver
+    }
+
+    this.setData({ loading: true })
+    try {
+      const result = await request({
+        url: '/content/publish',
+        method: 'POST',
+        data: payload
+      })
+
+      this.setData({
+        result: {
+          ...result,
+          detect: {
+            ...(result.detect || {}),
+            confidence_text: this.formatPercent((result.detect || {}).confidence, 2)
+          },
+          post_threshold_text: this.formatPercent((result.post || {}).threshold, 1),
+          detect_spam_probability_text: this.formatPercent((result.detect || {}).spam_probability, 2)
+        }
+      })
+
+      wx.showToast({
+        title: result.publish_allowed ? '发布成功' : '已拦截，可申诉',
+        icon: result.publish_allowed ? 'success' : 'none'
+      })
+    } finally {
+      this.setData({ loading: false })
+    }
+  },
+
+  gotoHistory() {
+    wx.navigateTo({ url: '/pages/history/index' })
+  }
+})

miniprogram/pages/detect/index.json

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+{
+  "navigationBarTitleText": "文本发布"
+}

miniprogram/pages/detect/index.wxml

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+<view class="container">
+  <view class="hero fade-up">
+    <view class="hero-badge">REAL-TIME CHECK</view>
+    <view class="hero-title">文本信息发布</view>
+    <view class="hero-sub">支持公开发布、私有发布与用户私信，提交时自动执行垃圾信息识别。</view>
+  </view>
+
+  <view class="card fade-up fade-up-delay-1">
+    <view class="card-title">发布内容</view>
+
+    <view class="field">
+      <text class="field-label">内容文本</text>
+      <textarea class="textarea" placeholder="请输入要发布的文本信息" value="{{text}}" data-field="text" bindinput="onInput" />
+      <view class="field-help">当前字数：{{text.length}}，建议不少于 2 个字符。</view>
+    </view>
+
+    <view class="field">
+      <view class="row">
+        <text class="field-label">发布类型</text>
+        <picker mode="selector" range="{{visibilityOptions}}" range-key="label" value="{{visibilityIndex}}" bindchange="onVisibilityChange">
+          <view class="picker-value">{{visibilityOptions[visibilityIndex].label}}</view>
+        </picker>
+      </view>
+    </view>
+
+    <view class="field" wx:if="{{visibility === 'direct'}}">
+      <text class="field-label">接收人用户名</text>
+      <input class="input" placeholder="私信发送时必填" value="{{recipientUsername}}" data-field="recipientUsername" bindinput="onInput" />
+    </view>
+
+    <button class="btn btn-primary" loading="{{loading}}" bindtap="publish">提交发布</button>
+  </view>
+
+  <view class="card fade-up fade-up-delay-2">
+    <view class="card-title">快捷示例</view>
+    <view class="chip-group">
+      <view class="chip" wx:for="{{quickTexts}}" wx:key="*this" data-text="{{item}}" bindtap="fillQuick">{{item}}</view>
+    </view>
+  </view>
+
+  <view class="card fade-up fade-up-delay-3" wx:if="{{result}}">
+    <view class="card-title">识别反馈</view>
+
+    <view class="row">
+      <text class="label">发布结果</text>
+      <text class="{{result.publish_allowed ? 'status-ham' : 'status-spam'}}">{{result.publish_allowed ? '发布成功' : '已拦截，需申诉'}}</text>
+    </view>
+
+    <view class="row">
+      <text class="label">模型判断</text>
+      <text class="value">{{result.detect.prediction_text}}</text>
+    </view>
+
+    <view class="row">
+      <text class="label">垃圾概率</text>
+      <text class="value">{{result.detect_spam_probability_text}}</text>
+    </view>
+    <view class="progress-track">
+      <view class="progress-fill" style="width: {{result.detect_spam_probability_text}};"></view>
+    </view>
+
+    <view class="row">
+      <text class="label">检测置信度</text>
+      <text class="value">{{result.detect.confidence_text}}</text>
+    </view>
+    <view class="progress-track">
+      <view class="progress-fill-safe" style="width: {{result.detect.confidence_text}};"></view>
+    </view>
+
+    <view class="row">
+      <text class="label">本次阈值</text>
+      <text class="value">{{result.post_threshold_text}}</text>
+    </view>
+
+    <view class="field" wx:if="{{result.detect.reason_tokens && result.detect.reason_tokens.length}}">
+      <text class="field-label">风险关键词</text>
+      <view class="chip-group">
+        <text class="tag" wx:for="{{result.detect.reason_tokens}}" wx:key="*this">{{item}}</text>
+      </view>
+    </view>
+
+    <button class="btn btn-ghost" bindtap="gotoHistory">查看发布历史</button>
+  </view>
+</view>

miniprogram/pages/detect/index.wxss

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+/* detect styles use global theme */