Your connect string points to a sql server database on your local PC listening on port 1433.
SQL Server does not start up with a fixed port per default but with dynamic port binding. As you need a fixed port for the jdbc driver (afaik), you need to set up a fixed port for the SQL Server Engine. This can be done using SQL Server configuration manager below the node SQL Server Network configuration. Just enter 1433 into the TCP Port property of IPAll.
Another point to check may be a local firewall. If you have one active, check if the connections from and to the SQLServer port are allowed.
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