Unable to get spring boot to automatically create database schema

Question

I m unable to get spring boot to automatically load my database schema when I start it up   Here is my application properties   spring datasource url jdbc mysql   localhost 3306 test spring datasource username test spring datasource password  spring datasource driverClassName   com mysql jdbc Driver  spring jpa database   MYSQL  spring jpa show-sql   true  spring jpa hibernate ddl-auto   create spring jpa hibernate dialect   org hibernate dialect MySQL5Dialect spring jpa hibernate naming strategy   org hibernate cfg ImprovedNamingStrategy   Here is my Application java    EnableAutoConfiguration  ComponentScan public class Application       public static void main final String   args           SpringApplication run Application class  args             Here is a sample entity    Entity  Table name    survey   public class Survey implements Serializable        private Long  id       private String  name       private List lt Question gt   questions                   return survey s id               Id      GeneratedValue strategy   IDENTITY       Column name    survey id   unique   true  nullable   false      public Long getId             return  id                         return the survey name               Column name    name       public String getName             return  name                          return a list of survey questions               OneToMany mappedBy    survey        OrderBy  id       public List lt Question gt  getQuestions             return  questions                         param id the id to set to              public void setId Long id             id   id                         param name the name for the question              public void setName final String name             name   name                         param questions list of questions to set              public void setQuestions List lt Question gt  questions             questions   questions            Any ideas what I m doing wrong

User · Answer

to connect to mysql with springboot as well as creating table automatically into database  spring datasource url jdbc mysql   localhost 3306 solace      spring datasource username root                                         spring datasource password root                                                    spring jpa generate-ddl true                                                         spring jpa hibernate ddl-auto update

User · Answer

if your DB is MySQL   spring jpa hibernate ddl-auto update spring datasource driverClassName com mysql jdbc Driver spring datasource url jdbc mysql   localhost 3306 your database spring datasource username root spring datasource password root   if your DB is PostgreSQL   spring jpa properties hibernate jdbc lob non contextual creation true spring jpa hibernate ddl-auto update spring datasource url jdbc postgresql   localhost 3306 your database spring datasource username root spring datasource password root

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I solved my case with this solution  Did just insert a new parameter createDatabaseIfNotExist true on a spring datasource url property on an application properties file  like this   spring datasource url jdbc mysql   localhost 3306 minhasenha autoReconnect true amp useSSL false amp createDatabaseIfNotExist true   I have the src main resources Schema sql with DDL to create the database schema  And I did use flyaway to create and maintain the tables   I founded this solution here  original answer

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Just add   spring jpa databaseplatform org hibernate dialect PostgreSQLDialect     at the end  This will solve your issue  Only this was missing

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If your entity class isn t in the same package as your main class  you can use  EntityScan annotation in the main class  specifying the Entity you want to save or package too  Like your model package   About   spring jpa hibernate ddl-auto   create   You can use the option update  It won t erase any data  and will create tables in the same way

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I ran into a similar problem  I m using spring boot 2 x and I missed to add Postgres dependency at spring initializer  I added the dependency manually   lt dependency gt   lt groupId gt org postgresql lt  groupId gt   lt artifactId gt postgresql lt  artifactId gt   lt scope gt runtime lt  scope gt   lt  dependency gt    and here is what I was getting-     INFO  org hibernate dialect Dialect - HHH000400  Using dialect       org hibernate dialect PostgreSQLDialect  instead of    INFO  org hibernate dialect Dialect - HHH000400  Using  dialect org hibernate dialect PostgreSQL10Dialect     This connected me to the DB  It s not so weird because Springboot does version dependency by itself and reduces the development work  On the flip side  if Springboot chooses incorrect dependency  it wastes a lot many hours

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I had the same problem before  My problem was the Entity relationship I was trying to establish by using a  List   I knew it was the cause because the program ran fine without the list variable  In your case  I think the problem is   private List lt Question gt   questions    I am assuming you already have a class named Question  So  try having    OneToMany private Question  questions    But the thing is  in your method  you are going to handle it so it return a list  I used Spring Data JPA with CrudRepository  So  if you decide to use it  yours may look like this   public List lt Question gt  findById  Long  id      There are more changes you will have to do  but these are pretty easy and straightforward  Refer to this Java Brains video to have a better grasp and see what else needs to be modified

User · Answer

Abderrahmane response is correct  add  createDatabaseIfNotExist true in the url property  It seems that ddl-auto won t do anything

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This is what I did after reading all of the answers above      Add spring jpa hibernate ddl-auto update with other simple properties to application properties run  In the console  you can see the error  At one place in the error  you can find the SQL code generated by this software to create your entity table  Copy that SQL code and paste it separately into your DBMS to create the table  After that  run the app again

User · Answer

You just add createDatabaseIfNotExist true like this  spring datasource url jdbc mysql   localhost 3306 test createDatabaseIfNotExist true amp amp amp useUnicode true amp amp amp characterEncoding utf-8 amp amp amp autoReconnect true   to your application properties file

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If you had this problem on Spring Boot  double check your package names which should be exactly like   com example YOURPROJECTNAME - consists main application class com example YOURPROJECTNAME entity - consists entities

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SpringBootApplication  EnableConfigurationProperties  EntityScan basePackages     com project ppaa model        scan JPA entities public class Application      private static ConfigurableApplicationContext applicationContext     public static void main String   args        Application applicationContext   SpringApplication run Application class  args           it should work automatically but if it does not  you can enter the base package   EntityScan basePackages     com project ppaa model        scan JPA entities manually

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Using the following two settings does work   spring jpa generate-ddl true spring jpa hibernate ddl-auto create

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Simple we are adding semicolon after spring jpa hibernate ddl-auto   create  which is wrong spring jpa hibernate ddl-auto   create enough

User · Answer

There are several possible causes    Your entity classes are in the same  or in a sub-package relative one where you have you class with  EnableAutoConfiguration  If not then your spring app does not see them and hence will not create anything in db Check your config  it seems that you are using some hibernate specific options  try to replace them with   spring jpa database-platform org hibernate dialect MySQL5InnoDBDialect spring jpa hibernate ddl-auto update spring datasource driverClassName com mysql jdbc Driver spring datasource url jdbc mysql   localhost 3306 test spring datasource username test spring datasource password   Your application properties must be in src main resources folder    If you did not specify dialect correctly it might try to default to bundled together with boot in-memory database and  as it was with me  I could see that it tries to connect to local HSQL  see console output  instance and fail at updating the schema

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I also have the same problem  Turned out I have the  PropertySource annotation set on the main Application class to read a different base properties file  so the normal  application properties  is not used anymore

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You need to provide configurations considering your Spring Boot Version and the version of libraries it downloads based on the same   My Setup  Spring Boot 1 5 x  1 5 10 in my case  downloads Hibernate v5 x  Use below only if your Spring Boot setup has downloaded Hibernate v4      spring jpa hibernate naming strategy org hibernate cfg ImprovedNamingStrategy   Hibernate 5 doesn t support above   If your Spring Boot Setup has downloaded Hibernate v5 x  then prefer below definition      spring jpa hibernate naming physical-strategy org hibernate boot model naming PhysicalNamingStrategyStandardImpl   IMPORTANT  In your Spring Boot application development  you should prefer to use annotation   SpringBootApplication which has been super-annotated with   SpringBootConfiguration and  EnableAutoConfiguration  NOW If your entity classes are in different package than the package in which your Main Class resides  Spring Boot won t scan those packages   Thus you need to explicitly define Annotation   EntityScan basePackages      com springboot entities     This annotation scans JPA based annotated entity classes  and others like MongoDB  Cassandra etc     NOTE    com springboot entities  is the custom package name   Following is the way I had defined Hibernate and JPA based properties at application properties to create Tables -     spring datasource driver-class-name com mysql jdbc Driver   spring datasource url jdbc mysql   localhost 3333 development useSSL true   spring datasource username admin   spring datasource password       spring jpa open-in-view false   spring jpa hibernate ddl-auto create   spring jpa generate-ddl true    spring jpa hibernate use-new-id-generator-mappings true   spring jpa hibernate naming physical-strategy org hibernate boot model naming PhysicalNamingStrategyStandardImpl   spring jpa hibernate naming strategy org hibernate cfg ImprovedNamingStrategy   spring jpa show-sql true   spring jpa properties hibernate dialect org hibernate dialect MySQL5Dialect   spring jpa properties hibernate format sql true   I am able to create tables using my above mentioned configuration   Refer it and change your code wherever applicable

User · Answer

Just add createDatabaseIfNotExist true parameter in spring datasource url  Example   spring datasource url  jdbc mysql   localhost 3306 test createDatabaseIfNotExist true

User · Answer

I had same problem and solved it with only this add   spring jpa database-platform org hibernate dialect PostgreSQLDialect

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In my case the tables were not getting created automatically even though I was using JPArepository  After adding the below property in my springboot app application properties file the tables are now getting created automatically  spring jpa hibernate ddl-auto update

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Sadly for me none of the answer given above worked because I later discovered that the issue came from my pom file  I used spring boot starter project and I added another kind of spring jpa which did not work  Initially I had this        lt dependency gt           lt groupId gt org springframework data lt  groupId gt           lt artifactId gt spring-data-jpa lt  artifactId gt       lt  dependency gt     I replaced it with this       lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-data-jpa lt  artifactId gt      lt  dependency gt     Take note of the spring-boot-starter-data-jpa  Hopefully this may help someone  Check your pom file and ensure your dependencies match

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The configurations below worked for me   spring jpa properties javax persistence schema-generation database action create spring jpa properties javax persistence schema-generation create-database-schemas true spring jpa properties javax persistence schema-generation create-source metadata spring jpa properties javax persistence schema-generation drop-source metadata spring jpa properties javax persistence schema-generation connection jdbc mysql   localhost 3306 your database

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Did you try running it with   spring jpa generate-ddl true   and then   spring jpa hibernate ddl-auto   create      By default the DDL execution  or validation  is deferred until the ApplicationContext has started  There is also a spring jpa generate-ddl flag  but it is not used if Hibernate autoconfig is active because the ddl-auto settings are more fine-grained    see spring-boot-features

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In my case I had to rename the table with name user  I renamed it for example users and it worked

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spring jpa properties hibernate dialect   org hibernate dialect MySQL5Dialect spring jpa generate-ddl true spring jpa hibernate ddl-auto update   MySQL5Dialect is did trick  previously I was using  MySQLDialect

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Use this Sample code  application properties   DataSource settings  set here your own configurations for the database    connection  In this example we have  dojsb  as database name and     root  as username and password  spring datasource url  jdbc postgresql   localhost 5432 usman spring datasource username   postgres spring datasource password   12345    Keep the connection alive if idle for a long time  needed in production  spring datasource testWhileIdle   true spring datasource validationQuery   SELECT 1    Show or not log for each sql query spring jpa show-sql   true    Hibernate ddl auto  create  create-drop  update  spring jpa hibernate ddl-auto   create    Naming strategy spring jpa hibernate naming-strategy   org hibernate cfg ImprovedNamingStrategy    Use spring jpa properties   for Hibernate native properties  the prefix is   stripped before adding them to the entity manager     The SQL dialect makes Hibernate generate better SQL for the chosen database spring jpa properties hibernate dialect   org hibernate dialect PostgreSQLDialect  server port   8963    Entity Class     import java sql Timestamp  import java util UUID   import javax persistence Column  import javax persistence Entity  import javax persistence Id  import javax persistence Table   import org hibernate annotations Type     Entity  Table name    QUEUERECORDS   public class QueuesRecords        Id     private UUID id        Column name  payload   nullable   true       Type type  text       private String payload         Column name  status   nullable   true       Type type  text       private String status       private Timestamp starttime       private Timestamp endtime        Column name  queueid  nullable  true       Type type  text       private String queueid       public UUID getId             return id             public void setId UUID id            this id   id             public String getPayload             return payload             public void setPayload String payload            this payload   payload             public String getStatus             return status             public void setStatus String status            this status   status             public Timestamp getStarttime             return starttime             public void setStarttime Timestamp starttime            this starttime   starttime             public Timestamp getEndtime             return endtime             public void setEndtime Timestamp endtime            this endtime   endtime             public String getQueueid             return queueid             public void setQueueid String queueid            this queueid   queueid                Main class    import org springframework beans factory annotation Autowired  import org springframework boot SpringApplication  import org springframework boot autoconfigure SpringBootApplication     SpringBootApplication public class Test       public static void main String   args             SpringApplication run Test class  args

[java] Unable to get spring boot to automatically create database schema

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