server.address=10.20.20.10
server.port=8080
database.user=username
database.password=password
spring.datasource.url=jdbc:postgresql://${server.address}/${server.port}?user=${database.user}&password=${database.password}

下面的方法对我很有效

const conString = "postgres://YourUserName:YourPassword@YourHostname:5432/YourDatabaseName";

postgres的连接url 语法:

"Server=host ipaddress;Port=5432;Database=dbname;User Id=userid;Password=password;

例子:

"Server=192.168.1.163;Port=5432;Database=postgres;User Id=postgres;Password=root;

DATABASE_URL=postgres://{user}:{password}@{hostname}:{port}/{database-name}

如果对各自的语言使用Libpq绑定，根据其文档，URI的形式如下:

postgresql://[user[:password]@][netloc][:port][/dbname][?param1=value1&...]

以下是来自同一文档的示例

postgresql://
postgresql://localhost
postgresql://localhost:5432
postgresql://localhost/mydb
postgresql://user@localhost
postgresql://user:secret@localhost
postgresql://other@localhost/otherdb?connect_timeout=10&application_name=myapp
postgresql://localhost/mydb?user=other&password=secret

server.address=10.20.20.10
server.port=8080
database.user=username
database.password=password
spring.datasource.url=jdbc:postgresql://${server.address}/${server.port}?user=${database.user}&password=${database.password}