我正在使用 Rails 开发网站，但是当我尝试打开我的本地主机时出现此错误
could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432? could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432?
各位大佬怎么解决