nginx errors.log中错误记录如下： [代码]2018/10/27 11:37:56 [error] 8137#0: *1780016 connect() failed (110: Connection timed out) while connecting to upstream, client: 223.166.222.108, server: wx.x.top, request: "POST /api.php?id=743&signature=bc7ef82a210e17d3281e105a262a9c8e7daedec4&timestamp=1540611447&nonce=1225322684&openid=oKFUQ1fj7zfFP4_DMaGtDAy8PldE HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.x.top"[代码] 不知道是在什么情况下微信这边会发起这个请求 包含如下参数 signature; timestamp; nonce; openid 麻烦各位大佬帮忙看看分析分析 是在什么场景下微信这边会发送这个请求