微信公众平台开发（七）聊天机器人功能开发

上一篇文章介绍了微信公众平台翻译功能的开发，实现了中、英、日语言互译，在实际生活中也能使用到。在接下来的这一篇文章中，我们将完成一个比较有趣的功能，那就是聊天机器人，可以在你无聊的时候陪你聊天逗你开心。

在这个实验中，我们将调取小黄鸡官方（http://www.simsimi.com/）提供的API，结合抓取小九机器人（http://www.xiaojo.com/）的网页，互相补充。Simsimi 是收费的，但你可以尝试7天测试，每天可以免费使用100条回复；小九机器人可以无限制使用，但前提是官方不屏蔽。

3.1 API & URL

官方API 地址：http://developer.simsimi.com/api

Request URL：http://sandbox.api.simsimi.com/request.p

这里使用免费版测试，付费版的类似，只是URL地址不同。

3.2 请求示例与参数说明

请求示例：

http://sandbox.api.simsimi.com/request.p?key=your_trial_key<span &lc</span>=en<span &ft</span>=1.0<span &text</span>=hi

Nach dem Login kopieren

参数说明：

Language code，支持的语言，简体中文用ch，繁体中文用zh，英文用en，详细请参考：http://developer.simsimi.com/lclist

　　0.0：未过滤（包含诅咒，性内容）；

　　1.0：过滤不文明字句（暂时只支持韩文）

3.3 返回值分析

result：执行结果返回码

400-Bad Request.
401-Unauthorized.
404-Not found.
500-Server Error.

id：回复的消息id（只有result=100 时才会有此项）

response：回复的消息（只有result=100 时才会有此项）

4.1 注册simsimi 账号

URL: http://developer.simsimi.com/signUp

4.2 激活账号

4.3 获取API Key

5.1 调用小黄鸡API 实现

调用simsim($keyword) 函数处理，将其中的“Your API Key” 换成申请到的API Key。

    <span //</span><span 小黄鸡</span>
    <span public</span> <span function</span> simsim(<span $keyword</span><span ){

        </span><span $key</span>="<span>41250a68-3cb5-43c8-9aa2-d7b3caf519b1</span>"<span ;
        </span><span $url_simsimi</span>="http://sandbox.api.simsimi.com/request.p?key=".<span $key</span>."&lc=ch&ft=0.0&text=".<span $keyword</span><span ;
        
        </span><span $json</span>=<span file_get_contents</span>(<span $url_simsimi</span><span );　　<span>// </span><span>把整个文件读入一个字符串中</span>

        </span><span $result</span>=json_decode(<span $json</span>,<span true</span><span );　　<span>// </span><span>对JSON 格式的字符串进行编码</span>

        </span><span //</span><span $errorCode=$result['result'];　　// 调试用</span>

        <span $response</span>=<span $result</span>['response'<span ];　　// 回复的消息

        </span><span if</span>(!<span empty</span>(<span $response</span><span )){
            </span><span return</span> <span $response</span><span ;
        }</span><span else</span><span {
            </span><span $ran</span>=<span rand</span>(1,5<span );
            </span><span switch</span>(<span $ran</span><span ){
                </span><span case</span> 1:
                    <span return</span> "小鸡鸡今天累了，明天再陪你聊天吧。"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 2:
                    <span return</span> "小鸡鸡睡觉喽~~"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 3:
                    <span return</span> "呼呼~~呼呼~~"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 4:
                    <span return</span> "你话好多啊，不跟你聊了"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 5:
                    <span return</span> "感谢您关注【卓锦苏州】"."\n"."微信号：zhuojinsz"."\n"."卓越锦绣，万代不朽"<span ;
                    </span><span break</span><span ;
                </span><span default</span>:
                    <span return</span> "感谢您关注【卓锦苏州】"."\n"."微信号：zhuojinsz"."\n"."卓越锦绣，万代不朽"<span ;
                    </span><span break</span><span ;
            }
        }
    }</span>

Nach dem Login kopieren

说明：

因为有时候小黄鸡不回复，所以在simsim() 函数中加入了一个判断，如果$response 不为空，则返回$response；如果$response 为空，则加了一个小小的代码，让其随机回复自定义的消息，这样就可以做到有求必应了。

5.2 调用小九机器人实现

小九机器人不提供API，故只能通过网页抓取，代码如下：

    <span //</span><span 小九机器人</span>
    <span public</span> <span function</span> xiaojo(<span $keyword</span><span ){

        </span><span $curlPost</span>=<span array</span>("chat"=><span $keyword</span><span );
        </span><span $ch</span> = curl_init();<span //</span><span 初始化curl</span>
        curl_setopt(<span $ch</span>, CURLOPT_URL,'http://www.xiaojo.com/bot/chata.php');<span //</span><span 抓取指定网页</span>
        curl_setopt(<span $ch</span>, CURLOPT_HTTPHEADER, <span $header</span><span );
        curl_setopt(</span><span $ch</span>, CURLOPT_HEADER, 0);<span //</span><span 设置header</span>
        curl_setopt(<span $ch</span>, CURLOPT_RETURNTRANSFER, 1);<span //</span><span 要求结果为字符串且输出到屏幕上</span>
        curl_setopt(<span $ch</span>, CURLOPT_POST, 1);<span //</span><span post提交方式</span>
        curl_setopt(<span $ch</span>, CURLOPT_POSTFIELDS, <span $curlPost</span><span );
        </span><span $data</span> = curl_exec(<span $ch</span>);<span //</span><span 运行curl</span>
        curl_close(<span $ch</span><span );
        </span><span if</span>(!<span empty</span>(<span $data</span><span )){
            </span><span return</span> <span $data</span><span ;
        }</span><span else</span><span {
            </span><span $ran</span>=<span rand</span>(1,5<span );
            </span><span switch</span>(<span $ran</span><span ){
                </span><span case</span> 1:
                    <span return</span> "小鸡鸡今天累了，明天再陪你聊天吧。"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 2:
                    <span return</span> "小鸡鸡睡觉喽~~"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 3:
                    <span return</span> "呼呼~~呼呼~~"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 4:
                    <span return</span> "你话好多啊，不跟你聊了"<span ;
                    </span><span break</span><span ;
                </span><span case</span> 5:
                    <span return</span> "感谢您关注【卓锦苏州】"."\n"."微信号：zhuojinsz"."\n"."卓越锦绣，万代不朽"<span ;
                    </span><span break</span><span ;
                </span><span default</span>:
                    <span return</span> "感谢您关注【卓锦苏州】"."\n"."微信号：zhuojinsz"."\n"."卓越锦绣，万代不朽"<span ;
                    </span><span break</span><span ;
            }
        }
    }</span>

Nach dem Login kopieren

5.3 双龙戏凤

我们还可以将上面的小黄鸡和小九机器人进行整合，具体代码如下：

    <span //</span><span 双龙戏凤</span>
    <span public</span> <span function</span> chatter(<span $keyword</span><span ){

        </span><span $curlPost</span>=<span array</span>("chat"=><span $keyword</span><span );
        </span><span $ch</span> = curl_init();    <span //</span><span 初始化curl</span>
        curl_setopt(<span $ch</span>, CURLOPT_URL,'http://www.xiaojo.com/bot/chata.php');    <span //</span><span 抓取指定网页</span>
        curl_setopt(<span $ch</span>, CURLOPT_HTTPHEADER, <span $header</span><span );
        curl_setopt(</span><span $ch</span>, CURLOPT_HEADER, 0);    <span //</span><span 设置header</span>
        curl_setopt(<span $ch</span>, CURLOPT_RETURNTRANSFER, 1);    <span //</span><span 要求结果为字符串且输出到屏幕上</span>
        curl_setopt(<span $ch</span>, CURLOPT_POST, 1);    <span //</span><span post提交方式</span>
        curl_setopt(<span $ch</span>, CURLOPT_POSTFIELDS, <span $curlPost</span><span );
        </span><span $data</span> = curl_exec(<span $ch</span>);    <span //</span><span 运行curl</span>
        curl_close(<span $ch</span><span );

        </span><span if</span>(!<span empty</span>(<span $data</span><span )){
            </span><span return</span> <span $data</span>." [/::)小九]"<span ;
        }</span><span else</span><span {
            </span><span return</span> <span $this</span>->simsim(<span $keyword</span>)." [simsim/::D]"<span ;
        }
    }</span>

Nach dem Login kopieren