一、技术架构设计
mermaid
graph TD
A[UniApp前端] -->|HTTP/WebSocket| B[ThinkPHP6 API]
B --> C[MySQL主库]
B --> D[Redis缓存]
B --> E[MinIO文件存储]
B --> F[Elasticsearch搜索]
二、核心模块实现
- 后端接口开发(ThinkPHP6)
安装依赖(composer.json):
json
{
"require": {
"topthink/think-swoole": "^3.0", // WebSocket支持
"elasticsearch/elasticsearch": "^7.0",
"endroid/qr-code": "^4.0" // 二维码生成
}
}
用户模块示例(app/controller/User.php):
php
namespace app\controller;
use app\model\User as UserModel;
use think\facade\Cache;
class User {
// 用户注册(JWT令牌)
public function register() {
$data = input('post.');
$user = UserModel::create($data);
$token = jwt_encode([
'uid' => $user->id,
'exp' => time() + 86400
]);
return json(['token' => $token]);
}
// 附近的人(GeoHash算法)
public function nearby() {
$lat = input('lat');
$lng = input('lng');
$geohash = GeoHash::encode($lat, $lng, 8);
$users = UserModel::whereLike('geohash', substr($geohash, 0, 5).'%')
->field('id,nickname,avatar,distance')
->paginate(10);
return json($users);
}
}
- 前端开发(UniApp)
聊天页面示例(pages/chat/chat.vue):
vue
<template>
<view class="chat-container">
<scroll-view class="message-list" scroll-y>
<view v-for="msg in messages" :key="msg.id"
:class="['message', msg.from === myId ? 'right' : 'left']">
<image v-if="msg.type === 'image'" :src="msg.content" mode="widthFix"/>
<text v-else>{{ msg.content }}</text>
</view>
</scroll-view>
<view class="input-box">
<uni-file-picker limit="1" @select="sendImage"/>
<input v-model="inputText" @confirm="sendText"/>
<button @click="sendVoice">按住说话</button>
</view>
</view>
</template>
<script>
export default {
data() {
return {
inputText: '',
messages: [],
socket: null
}
},
onLoad() {
// WebSocket连接
this.socket = uni.connectSocket({
url: 'wss://api.example.com/ws',
success: () => {
this.socket.onMessage(res => {
this.messages.push(JSON.parse(res.data));
});
}
});
},
methods: {
sendText() {
this.socket.send({
data: JSON.stringify({
type: 'text',
content: this.inputText
})
});
this.inputText = '';
}
}
}
</script>
三、关键技术实现
- 即时通讯(WebSocket+Swoole)
Swoole配置(config/swoole.php):
php
return [
'server' => [
'host' => '0.0.0.0',
'port' => 9502,
'mode' => SWOOLE_PROCESS,
'sock_type' => SWOOLE_SOCK_TCP,
'options' => [
'worker_num' => 4,
'task_worker_num' => 2,
'enable_static_handler' => true
]
]
];
消息广播逻辑:
php
$server->on('message', function ($server, $frame) {
$data = json_decode($frame->data, true);
// 敏感词过滤
$filter = new SensitiveFilter();
$data['content'] = $filter->replace($data['content']);
// 消息持久化
Db::name('chat_log')->insert([
'from_uid' => $data['from'],
'to_uid' => $data['to'],
'content' => $data['content'],
'create_time' => time()
]);
// 广播消息
foreach ($server->connections as $fd) {
$server->push($fd, json_encode($data));
}
});
- 智能匹配算法
用户相似度计算:
php
public function matchAlgorithm($uid) {
$user = UserModel::find($uid);
$candidates = UserModel::where('id', '<>', $uid)
->field('id, tags, location')
->select();
$scores = [];
foreach ($candidates as $candidate) {
// 标签匹配度(Jaccard系数)
$tagScore = count(array_intersect($user->tags, $candidate->tags))
/ count(array_unique(array_merge($user->tags, $candidate->tags)));
// 地理位置得分(5公里内满分)
$distance = GeoHelper::getDistance(
$user->location['lat'],
$user->location['lng'],
$candidate->location['lat'],
$candidate->location['lng']
);
$distanceScore = max(0, 1 - ($distance / 5000));
// 综合评分
$scores[$candidate->id] = 0.6*$tagScore + 0.4*$distanceScore;
}
arsort($scores);
return array_slice($scores, 0, 10, true);
}
四、安全防护方案
- 防御层实现
风险类型 防御措施 实现代码示例
SQL注入 预处理参数绑定 Db::name('user')->where('id', $id)->find()
XSS攻击 富文本白名单过滤 使用htmlpurifier库过滤
接口爆破 滑动窗口限流(Redis实现) Redis::incr('api_limit:'.$ip)
敏感图片 阿里云绿网审核 上传时调用ImageScan::check() - 敏感词过滤系统
字典树实现:
php
class SensitiveFilter {
private $trie = [];
public function __construct() {
// 加载词库
$words = file('sensitive_words.txt');
foreach ($words as $word) {
$node = &$this->trie;
$word = trim($word);
for ($i=0; $i<mb_strlen($word); $i++) {
$char = mb_substr($word, $i, 1);
if (!isset($node[$char])) {
$node[$char] = [];
}
$node = &$node[$char];
}
$node['end'] = true;
}
}
public function replace($text) {
$len = mb_strlen($text);
$i = 0;
while ($i < $len) {
$node = $this->trie;
$j = $i;
$match = '';
while ($j < $len) {
$char = mb_substr($text, $j, 1);
if (!isset($node[$char])) break;
$match .= $char;
$node = $node[$char];
if (isset($node['end'])) {
$text = mb_substr($text, 0, $i) . '***' . mb_substr($text, $j+1);
$len = mb_strlen($text);
break;
}
$j++;
}
$i++;
}
return $text;
}
}
五、部署优化建议
性能优化:
使用Redis缓存用户基础信息(设置30分钟过期)
聊天消息采用分库分表(按用户ID取模)
监控体系:
bash
Prometheus监控配置示例
job_name: 'thinkphp'
static_configs:- targets: ['192.168.1.10:9100']
压力测试:
bash
使用wrk进行接口压测
wrk -t12 -c400 -d30s https://api.example.com/user/nearby
六、开发注意事项
跨域问题:在ThinkPHP6中配置中间件
php
// middleware.php
return [
\think\middleware\AllowCrossDomain::class
];
UniApp适配:使用条件编译处理多端差异
vue
// #ifdef MP-WEIXIN
wx.login({...})
// #endif
版本控制:建议使用API版本管理
/api/v1/user/login
/api/v2/user/login
这套方案可实现日活10万级别的社交系统,完整代码需要约 3-4周开发周期。建议先从MVP版本(用户+匹配+聊天)开始迭代。扫码了解系统安装和更多系统,欢迎咨询!
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