H2 Database not found error: 90146. H2 database is not created on start

问题

Just created a simple spring-boot project from the spring initializer. I went to add a local h2 db for testing and am unable to login. Seems that it cannot create the test db when starting up but cannot figure out why this may be the case.

spring:
  h2:
    console:
      enabled: true
      path: /h2
  datasource:
    url: jdbc:h2:mem:testdb;
    username: sa
    password:
    driver-class-name: org.h2.Driver
    platform: h2
  jpa:
    show-sql: true
    hibernate:
      ddl-auto: create
    properties:
      hibernate:
        dialect=org:
          hibernate:
            dialect:
              H2Dialect: org.hibernate.dialect.H2Dialect

Database "mem:testdb" not found, and IFEXISTS=true, so we cant auto-create it [90146-199] 90146/90146

回答1:

I had the same error and I found these to be helpful:

Adding a pre-2019 version to the pom.xml file as below:

<dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <version>1.4.193</version>
</dependency>

This fixes the error but isn't the right way to do it. The newer version of H2 Database do not create a new database as it doesn't exist by default and are enabled to false for security purposes.

A better way would be adding making changes to url as:

jdbc:h2:mem:testdb;IFEXISTS=FALSE;

Hope it helps. I made changes in my application.properties file.

回答2:

I had a same problem and I changed the version of Spring Boot to 2.1.3 and it works

回答3:

As Stuck said.

Simply remove the semicolon:

wrong:    jdbc:h2:mem:testdb;
correct:  jdbc:h2:mem:testdb

来源：https://stackoverflow.com/questions/56209686/h2-database-not-found-error-90146-h2-database-is-not-created-on-start

标签

spring-boot