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微信sdk的实现

盛悦2019-02-18472人围观
简介微信sdk就是把一些公用的方法封装起来,方便了代码的管理,保证了我们代码的整洁性

微信sdk的实现

1、微信sdk的介绍

sdk就是一个方法的封装集

2、 sdk的特性

1.便捷:你把你经常用到的方法写到sdk中,你可以在其他项目开发过程中,引入sdk,就可以调用相应的方法,就不需要再其他项目开发中再去写相同的代码

2.可重复利用性:同上讲解

3、 编写自己的sdk

参照PHP实现微信公众平台开发—提升篇,继续讲解微信sdk

3.1、将TestController中的单文本回复、多图文回复以及关注事件消息回复抽空封装成sdk


    public function api()
    {
        $echoStr = isset($_GET["echostr"]) ? $_GET["echostr"] : '';
        if (!empty($echoStr) && $this->checkSignature()) {
            echo $echoStr;
            exit;
        } else {
            $postStr = file_get_contents("php://input", 'r');
            //写入日志  在同级目录下建立php_log.txt
            error_log(var_export($postStr,1),3,'php_log.txt');

            if (!empty($postStr)){
                libxml_disable_entity_loader(true);
                $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                
                //1、订阅时间——SDK
                $test = New Test();//前提是use App\Model\Admin\Test;
                if($postObj->Event=="subscribe") {
                    $test->responseSubscribe($postObj);
                }
                
                //订阅事件——源代码(非sdk)
//                if($postObj->Event=="subscribe") {
//                    $template = "<xml>
//                           <ToUserName><![CDATA[%s]]></ToUserName>
//                           <FromUserName><![CDATA[%s]]></FromUserName>
//                           <CreateTime>%s</CreateTime>
//                           <MsgType><![CDATA[%s]]></MsgType>
//                           <Content><![CDATA[%s]]></Content>
//                           </xml>";
//
//                    $msgType = "text";
//                    $contentStr = "欢迎关注楠辕贝辙,微信Y348033046";
//                    $resultStr = sprintf($template, $fromUsername,$toUsername, $time, $msgType, $contentStr);
//                    echo $resultStr;
//                }

                //2、多图文事件——SDK
                if( strtolower($postObj->MsgType) == 'text' && trim($postObj->Content)=='tuwen' ) {
                    $arr = array(//从数据库中得到或自定义
                        array(
                            'title' => 'imooc',
                            'description' => "imooc is very cool",
                            'picUrl' => 'https://www.chuangkit.com/ruanjian/assets/i/002.jpg',
                            'url' => 'http://www.imooc.com',
                        ),
                        array(
                            'title' => 'hao123',
                            'description' => "hao123 is very cool",
                            'picUrl' => 'https://www.baidu.com/img/bdlogo.png',
                            'url' => 'http://www.hao123.com',
                        ),
                        array(
                            'title' => 'qq',
                            'description' => "qq is very cool",
                            'picUrl' => 'http://www.imooc.com/static/img/common/logo.png',
                            'url' => 'http://www.qq.com',
                        ),
                    );

                   $test->responseNews($postObj, $arr);
                }
                
                //多图文事件——源代码(非sdk)
//                if( strtolower($postObj->MsgType) == 'text' && trim($keyword)=='tuwen' ){
//                    $arr = array(
//                        array(
//                            'title'=>'imooc',
//                            'description'=>"imooc is very cool",
//                            'picUrl'=>'https://www.chuangkit.com/ruanjian/assets/i/002.jpg',
//                            'url'=>'http://www.imooc.com',
//                        ),
//                        array(
//                            'title'=>'hao123',
//                            'description'=>"hao123 is very cool",
//                            'picUrl'=>'https://www.baidu.com/img/bdlogo.png',
//                            'url'=>'http://www.hao123.com',
//                        ),
//                        array(
//                            'title'=>'qq',
//                            'description'=>"qq is very cool",
//                            'picUrl'=>'http://www.imooc.com/static/img/common/logo.png',
//                            'url'=>'http://www.qq.com',
//                        ),
//                    );
//                    $template = "<xml>
//                                    <ToUserName><![CDATA[%s]]></ToUserName>
//                                    <FromUserName><![CDATA[%s]]></FromUserName>
//                                    <CreateTime>%s</CreateTime>
//                                    <MsgType><![CDATA[%s]]></MsgType>
//                                    <ArticleCount>".count($arr)."</ArticleCount>
//                                    <Articles>";
//                                    foreach ($arr as $key => $value) {
//                                    $template .= "<item>
//                                                    <Title><![CDATA[".$value['title']."]]></Title>
//                                                    <Description><![CDATA[".$value['description']."]]></Description>
//                                                    <PicUrl><![CDATA[".$value['picUrl']."]]></PicUrl>
//                                                    <Url><![CDATA[".$value['url']."]]></Url>
//                                                </item>";
//                                    }
//                    $template .= "</Articles>
//                                  </xml>";
//                    $msgType = "news";
//                    echo sprintf($template, $fromUsername,$toUsername, $time, $msgType);
//                }

                //3、单文本自动回复——SDK
                $test->responseText($postObj);

                //单文本自动回复——源代码(非sdk)
//                if(!empty( $postObj->Content )) {
//                    switch ( trim($postObj->Content) ) {
//                        case 1:
//                            $content = '您输入的数字是1';
//                            break;
//                        case 2:
//                            $content = '您输入的数字是2';
//                            break;
//                        case 3:
//                            $content = '您输入的数字是3';
//                            break;
//                        case 4:
//                            $content = '您输入的数字是4';
//                            break;
//                        case 'imooc':
//                            $content = '<a href="http://www.imooc.com">imooc</a> is cool';
//                            break;
//                        case 5:
//                            $content = '微信sdk is very useful';
//                            break;
//                        default:
//                            $content = '未找到相关内容';
//                            break;
//                    }
//                    $template = "<xml>
//                               <ToUserName><![CDATA[%s]]></ToUserName>
//                               <FromUserName><![CDATA[%s]]></FromUserName>
//                               <CreateTime>%s</CreateTime>
//                               <MsgType><![CDATA[%s]]></MsgType>
//                               <Content><![CDATA[%s]]></Content>
//                               </xml>";
//                    $msgType = "text";
//                    $content = $content;
//                    $resultStr = sprintf($template, $fromUsername, $toUsername, $time, $msgType, $content);
//                    echo $resultStr;
//                } else {
//                    echo "Input something...";
//                }

            } else {
                echo "";
                exit;
            }
        }

    }


3.2、新建并编写Test.php模型


<?php
namespace App\Model\Admin;
use Illuminate\Database\Eloquent\Model;

class Test extends Model
{
    //回复多图文类型的微信消息
    public function responseNews ($postObj, $arr) {
        $fromUsername = $postObj->FromUserName;
        $toUsername = $postObj->ToUserName;
        $time = time();
        $template = "<xml>
                                <ToUserName><![CDATA[%s]]></ToUserName>
                                <FromUserName><![CDATA[%s]]></FromUserName>
                                <CreateTime>%s</CreateTime>
                                <MsgType><![CDATA[%s]]></MsgType>
                                <ArticleCount>".count($arr)."</ArticleCount>
                                <Articles>";
        foreach ($arr as $key => $value) {
            $template .= "<item>
                                                <Title><![CDATA[".$value['title']."]]></Title>
                                                <Description><![CDATA[".$value['description']."]]></Description>
                                                <PicUrl><![CDATA[".$value['picUrl']."]]></PicUrl>
                                                <Url><![CDATA[".$value['url']."]]></Url>
                                            </item>";
        }
        $template .= "</Articles>
                              </xml>";
        $msgType = "news";
        echo sprintf($template, $fromUsername,$toUsername, $time, $msgType);
    }

    //回复单文本的微信消息
    public function responseText ($postObj) {
        $fromUsername = $postObj->FromUserName;
        $toUsername = $postObj->ToUserName;
        $time = time();
        switch ( trim($postObj->Content) ) {
            case 1:
                $content = '您输入的数字是1';
            break;
            case 2:
                $content = '您输入的数字是2';
            break;
            case 3:
                $content = '您输入的数字是3';
            break;
            case 4:
                $content = '您输入的数字是4';
            break;
            case 'imooc':
                $content = '<a href="http://www.imooc.com">imooc</a> is cool';
            break;
            case 5:
                $content = '微信sdk is very useful';
            break;
            default:
                $content = '未找到相关内容';
            break;
        }
        $template = "<xml>
                               <ToUserName><![CDATA[%s]]></ToUserName>
                               <FromUserName><![CDATA[%s]]></FromUserName>
                               <CreateTime>%s</CreateTime>
                               <MsgType><![CDATA[%s]]></MsgType>
                               <Content><![CDATA[%s]]></Content>
                               </xml>";
        $msgType = "text";
        $content = $content;
        $resultStr = sprintf($template, $fromUsername, $toUsername, $time, $msgType, $content);
        echo $resultStr;

    }
    

    //关注事件的微信消息
    public function responseSubscribe ($postObj) {
        $fromUsername = $postObj->FromUserName;
        $toUsername = $postObj->ToUserName;
        $time = time();

        $template = "<xml>
                       <ToUserName><![CDATA[%s]]></ToUserName>
                       <FromUserName><![CDATA[%s]]></FromUserName>
                       <CreateTime>%s</CreateTime>
                       <MsgType><![CDATA[%s]]></MsgType>
                       <Content><![CDATA[%s]]></Content>
                       </xml>";

        $msgType = "text";
        $content = "欢迎关注楠辕贝辙,微信Y348033046";
        $resultStr = sprintf($template, $fromUsername,$toUsername, $time, $msgType, $content);
        echo $resultStr;
    }


}


在微信公众号上执行下效果图:

微信图片_20190218153853(1).png