git clone 时出现异常：fatal: unable to access 'https://github.com/spring-projects/spring-framework.gi

git在 clone 代码的时候出现：fatal: unable to access 'https://github.com/spring-projects/spring-framework.git/': OpenSSL SSL_read: Connection was reset, errno 10054

解决方法：

只需要执行以下两行命令：

　　git config --global --unset http.proxy

　　git config --global --unset https.proxy