{"code":-1,"error":"ERR_WHEN_INSERT_TO_DB\nError: select count(`open_id`) as `hasUser` from `cSessionInfo` where `open_id` = 'oQPCO4ol5Y_-yL0MnCGxwbiHbSek' - Connection lost: The server closed the connection."}
这个是数据库查询报出的错误，所以我们先登录一下数据库，查询看看具体报错
#登录数据库 ~/my-project/server$ mysql -uroot -p Enter password: #选择项目数据库名称，我的是cAuth mysql> use cAuth; Database changed #查询选中数据库所有数据表 mysql> show tables; #查询数据库所有数据表报错 ERROR 2006 (HY000): MySQL server has gone away No connection. Trying to reconnect... Connection id: 8 Current database: cAuth
可以看出查询数据表的时候就报错了，出现错误MySQL server has gone away
这个错误的意思是mysql服务连接不上，运行brew services restart mysql重启一下mysql进程
# 重启 mysql ~/my-project/server$ brew services restart mysql Stopping `mysql`... (might take a while) ==> Successfully stopped `mysql` (label: homebrew.mxcl.mysql) ==> Successfully started `mysql` (label: homebrew.mxcl.mysql)
重启mysql进程之后，再来启动项目试一下是否还报错，现在已经可以了。
