启动Spring Boot应用程序时不考虑数据库端口

Question

I have been given a Spring boot application to dockerize.

Overview

• Application is a Springboot application.
• Built using Gradle.
• Application Properties using application.yml.
• Database : DBServer:1435 ( Port is not default 1433).

Initially I created the docker image and got the application up.
Later the DB port was changed to 1435. Now I have updated the JDBC url in datasource section of profiles in application.yml located in src\\main\\resources. DB_IP and DB_NAME are passed when booting up docker image.

spring:
  profiles: dev,staging,prod
  datasource:
    url: "jdbc:sqlserver://${DB_IP}:1435;databaseName=${DB_NAME}"
    username: "${DB_USER}"
    password: "${DB_PASS}"
    initialize: false
  jpa:
    show-sql: true
    generate-ddl: false
    hibernate:
      ddl-auto: none

Now application won't boot and instead defaulting to port 1433. Error is as below. I am not sure why it is defaulting to 1433. Any idea?

I tried connecting to DB instance from the docker machine and it works fine.
Further I checked using Telnet and port 1435 can be connected.

2018-02-07 16:54:18,118 ERROR main  org.apache.tomcat.jdbc.pool.ConnectionPool - Unable to create initial connections of pool.
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host 10.17.193.240, port 1433 has failed. Error: "Connection refused: no further information. 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.".
    at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:206)
    at com.microsoft.sqlserver.jdbc.SQLServerException.ConvertConnectExceptionToSQLServerException(SQLServerException.java:257)
    at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2385)
    at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:567)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1955)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:1616)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:1447)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:788)
    at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1187)
    at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:310)
    at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
    at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:735)
    at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:667)
    at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
    at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
    at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
    at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
    at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:131)
    at org.flywaydb.core.internal.util.jdbc.JdbcUtils.openConnection(JdbcUtils.java:51)
    at org.flywaydb.core.Flyway.execute(Flyway.java:1418)
    at org.flywaydb.core.Flyway.migrate(Flyway.java:971)
    at org.springframework.boot.autoconfigure.flyway.FlywayMigrationInitializer.afterPropertiesSet(FlywayMigrationInitializer.java:66)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:296)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1078)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:857)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
    at au.com.outware.swepad.Application.main(Application.java:49)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
2018-02-07 16:54:18,129 WARN main  org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Invocation of init method failed; nested exception is org.flywaydb.core.internal.dbsupport.FlywaySqlException: 
Unable to obtain Jdbc connection from DataSource
------------------------------------------------
SQL State  : 08S01
Error Code : 0
Message    : The TCP/IP connection to the host 10.17.193.240, port 1433 has failed. Error: "Connection refused: no further information. 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.".

Answer 1

This is a common problem that trips up many Java apps trying to connect to Microsoft SQL Server. Following steps will solve your issue.

1. Open SQL Server 2014 Configuration Manager .
2. Click Protocol for SQLEXPRESS under SQL Server Network Configuration on the left pane. On the right pane, right- click TCP/IP , and select Properties .
3. On the TCP/IP Properties dialog box that appears, click the IP Addresses tab.
4. Scroll down to locate the IPALL node. Remove any value, if present for TCP Dynamic Ports and specify 1433 for TCP Port .
5. Click OK .
6. Again right-click TCP/IP on the right pane, and select Enable .
7. On the SQL Server Services node, right-click SQL Server (SQLEXPRESS) , and select Restart .

Your connection string in application.properties must look like following:

spring.datasource.url=jdbc:sqlserver://localhost;databaseName=YourDBName