JDBC connectivity issue

Hi,

I have a JDBC temping to connect to 2 postgres nodes in a hot standby
configuration. Running postgres 9.4 on centos6.

What we are trying to accomplish is in an event of a failover, to first
try to connect to the master. If that fails to then reach out to the
standby.

I looked online and found the suggested way to do this, but it's not
working.

This is the JDBC line we have:

/jdbc.url=jdbc:postgresql://10.16.10.12:5432,10.16.10.13:5432/app_db/

Here is the error we are getting:/
/

/2018-03-07 13:54:36, 994 ERROR:com.zaxxer.hikari.util.PropertyElf -
failed to set properly port number on target class
org.postgresql.ds.PGSimpleDataSource java.langNumberFormatException:for
input string: "5432,10.16.10.13:5432"/

It looks like the first IP address has disappeared or is not set right./
/

Thanks in advance for the help.

//