微信公众号(一)获取access_token这里是引用
https://blog.youkuaiyun.com/FORLOVEHUAN/article/details/81512556
微信公众号(二)获取用户列表
https://blog.youkuaiyun.com/FORLOVEHUAN/article/details/82760618
微信公众号群发(三)群发消息
https://blog.youkuaiyun.com/forlovehuan/article/details/82760965
org.apache.commons.httpclient下载地址
https://download.youkuaiyun.com/download/forlovehuan/10674362
实现群发消息
php群发