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Play framework java connection is not available to sql server database

I'm stucked in a problem during connection from my java project (play framework ) to a sql server database in Azure.
In local enviroment the connection works fine.
Below parameter in my application.conf :
db.default {
url="jdbc:sqlserver://server-name.database.windows.net:1433;database=database-name"
encrypt=true
trustServerCertificate=false
hostNameInCertificate="*.database.windows.net"
loginTimeout=30
driver=com.microsoft.sqlserver.jdbc.SQLServerDriver
username="root"
password="RootPwd"
}
This is the error received:
ERROR o.h.e.jdbc.spi.SqlExceptionHelper HikariPool-1 - Connection is
not available, request timed out after 30006ms. ERROR
o.h.e.jdbc.spi.SqlExceptionHelper The TCP/IP connection to the host
par-sql-server.database.windows.net, port 1433 has failed. Error:
"par-sql-server.database.windows.net. Verify the connection
properties. Make sure that an instance of SQL Server is running on the
host and accepting TCP/IP connections at the port. Make sure that TCP
connections to the port are not blocked by a firewall.". ERROR
p.api.http.DefaultHttpErrorHandler
play.api.PlayException: Execution exception[[CompletionException:
org.hibernate.exception.JDBCConnectionException: Unable to acquire
JDBC Connection]]
at play.api.http.HttpErrorHandlerExceptions$.$anonfun$convertToPlayException$3(HttpErrorHandler.scala:388)
at scala.Option.getOrElse(Option.scala:201)
at play.api.http.HttpErrorHandlerExceptions$.convertToPlayException(HttpErrorHandler.scala:388)
at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:373)
at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:264)
at play.core.server.AkkaHttp
I have already checked that tcp/ip port 1433 is correctly available for database, and my ip is correctly setted to avoid firewall.
Any suggestions?
thanks

Usually this error occurs when the database is not getting the connection within the default connectionTimeout property.
You can try to increase the value of connectionTimeout in Java config as below:
config.setConnectionTimeout(300000);
below is one of the sample config:
HikariConfig config = new HikariConfig();
config.setMaximumPoolSize(20);
config.setConnectionTimeout(300000);
config.setConnectionTimeout(120000);
config.setLeakDetectionThreshold(300000);
If possible let me know the steps to reproduce this issue so that I can fix it accordingly, also based on the information you've provided these blogs (Blog1, Blog2) will help you in establishing the connection

java.sql.SQLException: The application requester cannot establish the connection

I have written a java program to connect to AS400 DB. I am using jt400-6.4.jar to connect to DB.
DB Properties I am using:
as400_dbUrl=jdbc:as400://host/schema;translate binary=true
as400_dbUser=user
as400_dbPassword=pass
My program is not able to connect to DB server i am getting the below error.
2017-06-30 05:36:53 ERROR DBUtil:88 - Exception:
java.sql.SQLException: The application requester cannot establish the connection. (A remote host refused an attempted connect operation.)
at com.ibm.as400.access.JDError.throwSQLException(JDError.java:528)
at com.ibm.as400.access.AS400JDBCConnection.setProperties(AS400JDBCConnection.java:3130)
at com.ibm.as400.access.AS400JDBCDriver.prepareConnection(AS400JDBCDriver.java:1360)
at com.ibm.as400.access.AS400JDBCDriver.initializeConnection(AS400JDBCDriver.java:1211)
at com.ibm.as400.access.AS400JDBCDriver.connect(AS400JDBCDriver.java:352)
at java.sql.DriverManager.getConnection(DriverManager.java:426)
at java.sql.DriverManager.getConnection(DriverManager.java:474)
I googled about this, not able to find the exact reason.
I think jt400.jar will use 8471 as the port to connect to DB. Please correct me if I am wrong regarding this port.
I am not able to ping the host. ping host is not returning any response.
I am able to telnet like telnet host. But I am not able to telnet the system like telnet host 8471
Your hlep will be highly appreciable. Kindly help.

try updating your DB property as:
Add <:port-number> after host
as400_dbUrl=jdbc:as400://host:port/schema;translate binary=true
Hope this solves your problem.

Configure Spring Boot to listen for request beside localhost

I am connected to dormitory subweb. I have 2 machines with external ip adresses. ( I am able to ping them or connect with them via SSH) Raspberry Pi running ubuntu mate where my Spring Boot server is hosted and other machine running Windows 10. Problem is that Spring server do not respond to requests from any source beside dormitory web (DW). I found that Issue is 8080 port closed. when I scan for open ports from beside DW I can only see 22 port opened, Computers inside DW see 8080 and 22 ports as opened and are able to respond HTTP server.
From what I have read here I have to set server.address property to be accessible from "outside"
My spring application.properties
#mysql test config
spring.datasource.url=jdbc:mysql://localhost:3306/springboot
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver`
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQLDialect
spring.jpa.hibernate.ddl-auto = update
spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.DefaultNamingStrategy
#initialization
spring.datasource.schema=classpath:/data/schema.sql
#server
server.address= my.adres.here
server.port = 8080
I am sure that sever reads this file properly.
I also tried turn off firewall temporarily
sudo ufw disable
to check if it blocks connection on this port but thats not the issue.
I am not sure where the real problem may be localized. Could it be something wrong with Spring Boot config? Or maybe it is some networking issue.

as #Robert Masen suggested problem was dormitory network blocking connection on 8080 port.

connecting to postgreSQL server failed

I am trying to install "Kwok information server" and I am new to postgreSQL. I just followed the installation guide of Kwok information server.
when I am trying to install kwok-schema-setup.jar file using java through postgreSQL server in Command Prompt, I am getting the following error..."Connecting to PostgreSQL Server ...failed. Connection refused. Check that the ho
stname and port are correct and that the postmaster is accepting TCP/IP connecti
ons. Cause: java.net.ConnectException: Connection refused: connect
Schema setup encountered errors" .
And when I am trying to connect to the server using pgAdmin III, I am getting the following error "Server doesn't listen
The server doesn't accept connections: the connection library reports
could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "127.0.0.1" and accepting TCP/IP connections on port 5432? ".
Please anyone help me regarding, Thanks in advance!!

Looks like your Postgresql daemon is not running. Check if the server has started and is running. I dont know which OS you are using but try ps -ax on linux/mac or the task manager in windows.
Maybe a firewall that is blocking the connection, you have to provide more information about your environment to be sure.

Connection JDBC SQL Server Error

I've tryed to create a connection with a Microsoft SQl Server 2008 database through JDBC on Eclipse SDK. I've dowloaded JDBC driver from microsoft and I've installed it, then I've added at my System environment variables CLASSPATH the path of sqljdbc4.jar file. After icluding in the Eclipse project the jar file I've tryed to create the connection using:
String connectionUrl = "jdbc:sqlserver://localhost;integratedSecurity=true";
Connection con = DriverManager.getConnection(connectionUrl);
but it doesn't works, and launch me this exception:
com.microsoft.sqlserver.jdbc.SQLServerException: TCP/IP connection
at host localhost, port 1433 failed. Error: "Connection refused:
connect. Verify connection properties and make sure an instance of SQL
Server is running on the host and is accepting TCP/IP connections at
the port. Be sure no firewall blocks connections at the port.
I'm working on a JRE 1.6 so a sqljdbc4 should work, and I've created a working ODBC, so the server is responding, and the error should be in java command or JDBC installation.
Can anyone help me?

At the risk of stating the obvious, this looks to me as if TCP connections haven't been enabled on SQL Server. You have to manually enable them, they don't come enabled by default.
There's an article on MSDN here which explains how to enable TCP protocols for SQL 2005/2008.

Following are the quick trouble shooters:
Try to connect to your server using external front end.
Check if your firewall blocks the connection to the port
Check to see if server is really up.
A Suggestion :
If you are using eclipse , you don't need to add the jar into CLASSPATH variable , you can just add it in library of your project to make it available at runtime