這段時間公司的項目中有用到分享自定義標題和圖片的東西,從微信官方文檔中認真看了一下 其實特別簡單,可能對新手來說會有點繞,這裏我用PHP來說明一下。
我從微信官方文檔中下載的sample說明,看了一下,裏面的分享頁是用PHP格式的,但是我的項目中是html格式的,所以我想著不改動的格式的話怎麽來實現,於是從網上那種趴,結果發現答案五花八門,都是說要改成PHP的;還有就是需要後臺配合的,下面給大家講的是將php寫在本地的,在界面中直調取就好;廢話不說啦,直接上圖
上面是我的目錄結構 wxjdk是我從sample中下載的拿的php裏面的東西
代碼部分
access_token.php 、 jsapi_ticket.php 、jssdk直接拿到過來就好
jssdk 說一下我做修改的部分及註意點
<?php
class JSSDK {
private $appId;
private $appSecret;
public function __construct($appId, $appSecret) {
$this->appId = $appId;
$this->appSecret = $appSecret;
}
public function getSignPackage() {
$jsapiTicket = $this->getJsApiTicket();
// 註意 URL 一定要動態獲取,不能 hardcode.
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
$url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$timestamp = time();
$nonceStr = $this->createNonceStr();
// 這裏參數的順序要按照 key 值 ASCII 碼升序排序
$string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url";
$this->set_log_file("[getSignPackage]".$string);
$signature = sha1($string);
$signPackage = array(
"appId" => $this->appId,
"nonceStr" => $nonceStr,
"timestamp" => $timestamp,
"url" => $url,
"signature" => $signature,
"rawString" => $string
);
return $signPackage;
}
private function createNonceStr($length = 16) {
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
private function getJsApiTicket() {
// jsapi_ticket 應該全局存儲與更新,以下代碼以寫入到文件中做示例
$data = https://segmentfault.com/a/json_decode($this->get_php_file("jsapi_ticket.php"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
// 如果是企業號用以下 URL 獲取 ticket
// $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
$res = json_decode($this->httpGet($url));
$this->set_log_file("[getJsApiTicket]".json_encode($res));
$ticket = $res->ticket;
if ($ticket) {
$data->expire_time = time() + 7000;
$data->jsapi_ticket = $ticket;
$this->set_php_file("jsapi_ticket.php", json_encode($data));
}
} else {
$ticket = $data->jsapi_ticket;
}
return $ticket;
}
private function getAccessToken() {
// access_token 應該全局存儲與更新,以下代碼以寫入到文件中做示例
$data = https://segmentfault.com/a/json_decode($this->get_php_file("access_token.php"));
if ($data->expire_time < time()) {
// 如果是企業號用以下URL獲取access_token
// $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
$res = json_decode($this->httpGet($url));
$this->set_log_file("[getAccessToken]".json_encode($res));
$access_token = $res->access_token;
if ($access_token) {
$data->expire_time = time() + 7000;
$data->access_token = $access_token;
$this->set_php_file("access_token.php", json_encode($data));
}
} else {
$access_token = $data->access_token;
}
return $access_token;
}
private function httpGet($url) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 500);
// 為保證第三方服務器與微信服務器之間數據傳輸的安全性,所有微信接口采用https方式調用,必須使用下面2行代碼打開ssl安全校驗。
// 如果在部署過程中代碼在此處驗證失敗,請到 http://curl.haxx.se/ca/cacert.pem 下載新的證書判別文件。
//從官方下載的jssdk中下面這倆應該是true,我這給改成false啦,因為我的分享是http開頭的,兩種情況下,如果你分享中jsapi_ticket和 access_token中寫不進去值,先看一下你的是分享鏈接是什麽開頭的,http的話就改成false
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_URL, $url);
$res = curl_exec($curl);
curl_close($curl);
return $res;
}
private function get_php_file($filename) {
return trim(substr(file_get_contents($filename), 15));
}
private function set_php_file($filename, $content) {
$fp = fopen($filename, "w");
fwrite($fp, "<?php exit();?>" . $content);
fclose($fp);
}
//這裏是給加了個日誌,官網下載無,可以不加;
public function set_log_file($content){
$logfile = "wx.log";
$content = date('Y-m-d H:i:s.u').' '.$content."\n";
$fp = fopen($logfile, "a");
fwrite($fp, $content);
fclose($fp);
}
}
接下來是改寫的一些東西
ajax_getconfig.php
<?php
require_once "jssdk.php";
$jssdk = new JSSDK("你的Appid", "你的secret",$_GET['url']);
$signpackage = $jssdk->GetSignPackage();
$signPackage['jsApiList'] = array('onMenuShareTimeline','onMenuShareAppmessage');
$signPackage['debug'] = false;
echo json_encode($signPackage);
?>
function_share.js
function Share(url,title,img,desc){
//需要說明的一點,在這裏 ./ 表示的是你的根目錄;
$.get("./wxjdk/ajax_getconfig.php",{url:window.location.href},function(data) {
// console.log(data)
wx.config(data);
wx.ready(function () {
// 在這裏調用 API
wx.onMenuShareTimeline({ //例如分享到朋友圈的API
title: title, // 分享標題
link: url, // 分享鏈接
imgUrl: img, // 分享圖標
success: function () {
alert('分享成功')
},
cancel: function () {
// 用戶取消分享後執行的回調函數
}
});
wx.onMenuShareAppMessage({
title: title, // 分享標題
desc: desc, // 分享描述
link: url, // 分享鏈接
imgUrl: img, // 分享圖標
type: '', // 分享類型,music、video或link,不填默認為link
dataUrl: '', // 如果type是music或video,則要提供數據鏈接,默認為空
success: function () {
alert('分享成功')
},
cancel: function () {
// 用戶取消分享後執行的回調函數
}
});
wx.error(function (res) {
alert(res.errMsg); //打印錯誤消息。及把 debug:false,設置為debug:ture就可以直接在網頁上看到彈出的錯誤提示
});
});
},
"json"
);
}
最後一步就是在an_share.html中引入微信的jweixin-1.2.0.js 和 function_share.js 然後調用Share函數啦!
Tags: quot appSecret 一下 timestamp appId 格式
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